0001193125-21-330014 | S-1 | XBRL Viewer | Definitive Healthcare Corp

Weighted average Common Stock outstanding:

$ (0.39)

$ (0.40)

Less: Net loss attributable to noncontrolling interests

126,794,329

88,263,333

^[1]

127,682,376

Common Class A [Member]

Other expense, net:

$ (5,172)

Net loss per share of Class A Common Stock:

Weighted average Common Stock outstanding:

$ (0.09)

88,263,333,000

[1]

Basic and diluted net loss per share of Class A Common Stock is applicable only for the period from September 15, 2021 through September 30, 2021, which is the period following the initial public offering (“IPO”) and related Reorganization Transactions (as defined in Note 1 to the Unaudited Consolidated Financial Statements). See Note 16 for the number of shares used in the computation of net loss per share of Class A Common Stock and the basis for the computation of net loss per share.

Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (49,266)	$ 12,868	$ (46,493)	$ (35,295)	$ (51,157)
Other comprehensive loss:
Foreign currency translation adjustments			155		(131)
Comprehensive loss			(46,338)	(35,295)
Less: Net loss attributable to Definitive OpCo prior to the Reorganization Transactions			(33,201)
Less: Comprehensive loss attributable to noncontrolling interests			(5,167)
Comprehensive loss attributable to Definitive Healthcare Corp	$ (49,266)	$ 12,868	$ (7,970)	$ (35,295)	$ (51,288)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Organization, Consolidation and Presentation of Financial Statements [Abstract]

Condensed Consolidated Statements of Changes in Members' Equity and Total Equity - USD ($) $ in Thousands	Total	Member Units [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interests [Member]	Common Class A [Member]	Common Class A [Member] Member Units [Member]	Common Class B [Member]	Common Class B [Member] Member Units [Member]	Legacy Class A [Member]	Legacy Class A [Member] Member Units [Member]	Legacy Class B [Member] Member Units [Member]
Balance at Beginning at Dec. 31, 2018	$ 73,827		$ (42,598)	$ 38,925								$ 77,500
Balance at Beginning, shares at Dec. 31, 2018												7,750,000	88,716
Adoption of ASC 606 (See Note 2)	5,415		5,415
Distribution to members	(468)		(468)
Vesting of Class B Units and unit-based compensation, Shares													180,137
Recapitalization (See Note 12)	(97,449)		31,844	(51,793)								$ (77,500)
Recapitalization (See Note 12), Shares												(7,750,000)	(268,853)
Capital contribution (See Note 3 and 12)	1,267,257							$ 1,267,257
Capital contribution (See Note 3 and 12), Shares								126,725,743
Impacts of Reorganization Transactions and Intial Public Offering IPO
Net loss subsequent to Reorganization Transactions	12,868			12,868
Equity-based compensation subsequent to Reorganization Transactions	5,807		5,807
Balance at Ending at Jul. 15, 2019	1,267,257	$ 97,449	(31,844)	51,793				$ 1,267,257				$ 77,500
Balance at Ending, shares at Jul. 15, 2019								126,725,743				7,750,000	268,853
Distribution to members	(6,492)			(6,492)
Capital contribution (See Note 3 and 12)	3,997							$ 3,997
Capital contribution (See Note 3 and 12), Shares								399,692
Impacts of Reorganization Transactions and Intial Public Offering IPO
Net loss subsequent to Reorganization Transactions	(49,266)			(49,266)
Equity-based compensation subsequent to Reorganization Transactions	744									$ 744
Balance at Ending at Dec. 31, 2019	1,216,240			(55,758)				$ 1,271,254
Balance at Ending, shares at Dec. 31, 2019								127,125,435		744
Balance at Ending at Dec. 31, 2019	1,216,240	1,216,240
Equity-based compensation		430
Impacts of Reorganization Transactions and Intial Public Offering IPO
Net loss subsequent to Reorganization Transactions		(13,835)
Balance at Ending at Mar. 31, 2020		1,202,835
Balance at Beginning at Dec. 31, 2019	1,216,240	1,216,240
Balance at Beginning at Dec. 31, 2019	1,216,240			(55,758)				$ 1,271,254
Balance at Beginning, shares at Dec. 31, 2019								127,125,435		744
Impacts of Reorganization Transactions and Intial Public Offering IPO
Net loss subsequent to Reorganization Transactions	(35,295)
Balance at Ending at Sep. 30, 2020		1,180,168
Balance at Beginning at Dec. 31, 2019	1,216,240	1,216,240
Balance at Beginning at Dec. 31, 2019	1,216,240			(55,758)				$ 1,271,254
Balance at Beginning, shares at Dec. 31, 2019								127,125,435		744
Distribution to members	(2,940)			(2,940)
Vesting of Class B Units	1,747									$ 1,747
Vesting of Class B Units and unit-based compensation, Shares										474,920
Capital contribution (See Note 3 and 12)	31,804							$ 31,804
Capital contribution (See Note 3 and 12), Shares								3,120,555
Comprehensive loss	(131)				$ (131)
Impacts of Reorganization Transactions and Intial Public Offering IPO
Net loss subsequent to Reorganization Transactions	(51,157)			(51,157)
Balance at Ending at Dec. 31, 2020	1,195,563			(109,855)	(131)			$ 1,303,058		$ 2,491
Balance at Ending, shares at Dec. 31, 2020								130,245,990		474,920
Balance at Ending at Dec. 31, 2020	1,195,563	1,195,694			(131)
Balance at Beginning at Mar. 31, 2020		1,202,835
Distribution to members		(48)
Equity-based compensation		442
Impacts of Reorganization Transactions and Intial Public Offering IPO
Net loss subsequent to Reorganization Transactions		(11,498)
Balance at Ending at Jun. 30, 2020		1,191,731
Distribution to members		(2,059)
Equity-based compensation		458
Impacts of Reorganization Transactions and Intial Public Offering IPO
Net loss subsequent to Reorganization Transactions		(9,962)
Balance at Ending at Sep. 30, 2020		1,180,168
Balance at Beginning at Dec. 31, 2020	1,195,563	1,195,694			(131)
Net loss prior to Reorganization Transactions	(10,487)	(10,487)
Other comprehensive income (loss) prior to Reorganization Transactions					163	$ 163
Equity-based compensation prior to Reorganization Transactions	406	406
Balance at Ending at Mar. 31, 2021	1,185,645	1,185,613			32
Balance at Beginning at Dec. 31, 2020	1,195,563	1,195,694			(131)
Balance at Beginning at Dec. 31, 2020	1,195,563			(109,855)	(131)			$ 1,303,058		$ 2,491
Balance at Beginning, shares at Dec. 31, 2020								130,245,990		474,920
Impacts of Reorganization Transactions and Intial Public Offering IPO
Net loss subsequent to Reorganization Transactions	(46,493)						$ (7,978)
Balance at Ending at Sep. 30, 2021	1,283,084		700,773	(7,978)	24	590,177	$ 88
Balance at Ending , Shares at Sep. 30, 2021							88,263,333		60,020,525
Balance at Beginning at Mar. 31, 2021	1,185,645	1,185,613			32
Net loss prior to Reorganization Transactions	(15,040)	(15,040)
Other comprehensive income (loss) prior to Reorganization Transactions	(19)				(19)
Equity-based compensation prior to Reorganization Transactions	1,615	1,615
Members' contributions prior to Reorganization Transactions	5,500	5,500
Distributions to members prior to Reorganization Transactions	(3,328)	(3,328)
Balance at Ending at Jun. 30, 2021	1,174,373	1,174,360			13
Net loss prior to Reorganization Transactions	(7,816)	(7,816)
Other comprehensive income (loss) prior to Reorganization Transactions	(2)				(2)
Equity-based compensation prior to Reorganization Transactions	(278)	(278)
Distributions to members prior to Reorganization Transactions	(3,811)	(3,811)
Impacts of Reorganization Transactions and Intial Public Offering IPO
Initial effect of the Reorganization Transactions and IPO on noncontrolling interests	(217,446)	$ (1,162,455)	351,075			593,861	$ 73
Initial effect of the Reorganization Transactions and IPO on noncontrolling interests , Shares							72,871,733		61,262,052
Issuance of Class A Common Stock in IPO, net of costs	441,418		441,400				$ 18
Issuance of Class A Common Stock in IPO, net of costs, Shares							17,888,888
Repurchase of Definitive Healthcare Corp. shares in connection with the IPO	(63,212)		(63,209)				$ (3)
Repurchase of Definitive Healthcare Corp. shares in connection with the IPO, Shares							(2,497,288)
Repurchase of Definitive OpCo units in connection with IPO	(29,600)		(29,600)
Repurchase of Definitive OpCo units in connection with IPO, Shares									(1,169,378)
Net loss subsequent to Reorganization Transactions				(7,978)		(5,172)					$ (13,150)
Other comprehensive income subsequent to Reorganization Transactions and IPO	13				13
Equity-based compensation subsequent to Reorganization Transactions	2,595		1,574			1,021
Forfeited incentive units, Shares									(72,149)
Vested incentive units, value			(467)			467
Balance at Ending at Sep. 30, 2021	$ 1,283,084		$ 700,773	$ (7,978)	$ 24	$ 590,177	$ 88
Balance at Ending , Shares at Sep. 30, 2021							88,263,333		60,020,525

Condensed Consolidated Statements of Changes in Members' Equity and Total Equity (Parenthetical) $ in Thousands	3 Months Ended
	Sep. 30, 2021 USD ($)
Capital Unit, Class A [Member] \| IPO [Member]
Stock Issuance Cost Net	$ 11,394

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Cash flows provided by operating activities:
Net loss	$ (49,266)	$ 12,868	$ (46,493)	$ (35,295)	$ (51,157)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and Amortization	456	423	1,193	817	1,152
Amortization of intangible assets	30,617	2,042	43,517	43,498	58,429
Amortization of deferred contract costs	189	824	3,195	1,038	1,671
Equity-based compensation	744	5,807	4,338	1,330	1,747
Noncash paid in kind interest expense	3,041			7,371	7,371
Amortization of debt issuance costs	1,082		1,522	1,541	2,061
Provision for doubtful accounts receivable	333		76	579	895
Loss on extinguishment of debt			9,843
Changes in fair value of contingent consideration			3,169		2,636
Changes in operating assets and liabilities:
Accounts receivable	(12,494)	3,872	5,179	3,936	(8,294)
Prepaid expenses and other current assets	39	(203)	(561)	(39)	(709)
Deferred contract costs	(3,075)	(2,239)	(9,043)	(4,341)	(7,685)
Accounts payable, accrued expenses and other current liabilities	7,396	557	(3,965)	(7,283)	2,996
Deferred revenue	13,805	4,776	9,023	1,392	12,104
Net cash provided by operating activities	(7,133)	28,727	20,993	14,544	23,217
Cash flows used in investing activities:
Purchases of property, equipment, and other assets	(1,171)	(729)	(5,662)	(1,061)	(1,395)
Cash paid for acquisitions, net of cash acquired	(1,108,197)	(29,831)		(6,935)	(22,467)
Net cash used in investing activities	(1,109,368)	(30,560)	(5,662)	(7,996)	(23,862)
Cash flows provided by (used in) financing activities:
Proceeds from Term Loan	450,000		275,000
Proceeds from Delayed Draw Term Loan					18,000
Repayments of term loans	(1,125)		(472,742)	(3,375)	(4,545)
Proceeds from revolving credit facility				25,000	25,000
Payment of contingent consideration			(1,500)
Repayments on Revolving Line of Credit					(25,000)
Payment of debt issuance costs	(14,255)		(3,511)		(225)
Proceeds from equity offering, net of underwriting discounts			452,812
Repurchase of outstanding equity / Definitive OpCo units			(92,812)
Payments of IPO issuance costs			(5,913)
Member contributions	696,991		5,500		6,365
Member distributions	(6,492)	(468)	(7,139)	(2,109)	(2,940)
Net cash provided by financing activities	1,125,119	(468)	149,695	19,516	16,655
Net increase in cash and cash equivalents	8,618	(2,301)	165,026	26,064	16,010
Effect of exchange rate changes on cash and cash equivalents			(48)		146
Cash and cash equivalents, beginning of period	17,058	19,359	24,774	8,618	8,618
Cash and cash equivalents, end of period	8,618	17,058	189,752	34,682	24,774
Cash paid during the year for:
Cash paid for interest	9,939	277	27,587	$ 23,043	25,958
Cash paid for income taxes	0	60	13		0
Supplemental disclosure of non-cash investing activities:
Accrued purchases of data	0	0			3,389
Net decrease in accrued capital expenditures, including purchases of data			(3,020)
Supplemental disclosure of non-cash financing activities:
Increase in unpaid public offering costs			$ 5,481
Acquisitions:
Net assets acquired, net of cash acquired	1,689,395	29,831			43,571
Capital contribution	(574,263)	0			(25,439)
Contingent consideration	0	0			(2,600)
Consideration paid to former members included in accrued expenses	(6,935)	0			6,935
Net cash paid	$ 1,108,197	$ 29,831			$ 22,467

Organization

May 24, 2021

Organization

1.	Organization

Definitive Healthcare Corp. (the “Corporation”) was organized as a Delaware corporation on May 5, 2021 and its shares were funded at May 24, 2021. The Corporation’s fiscal year end is December 31. Pursuant to a reorganization into a holding corporation structure, the Corporation will become a holding corporation and its sole assets are expected to be an equity interest in AIDH TopCo, LLC.

The Corporation will be the sole managing member of AIDH TopCo, LLC, and will operate and control all of the businesses and affairs of AIDH TopCo, LLC and, through AIDH TopCo, LLC and its subsidiaries, continue to conduct the business now conducted by these entities.

Description of Business

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Accounting Policies [Abstract]

Description of Business

1.	Description of Business

Definitive Healthcare Corp. (together with its subsidiaries, “Definitive Healthcare” or the “Company”), through its operating subsidiary, AIDH TopCo, LLC (“Definitive OpCo”), provides comprehensive and

up-to-date

hospital and healthcare-related information and insight across the entire healthcare continuum via a multi-tenant database platform which combines proprietary and public sources to deliver insights. Unless otherwise stated, references to “we,” “us,” “our,” “Definitive Healthcare” and the “Company” refer (1) prior to the consummation of the Reorganization Transactions (as defined below), to Definitive OpCo and its consolidated subsidiaries, and (2) after the consummation of the Reorganization Transactions, to Definitive Healthcare Corp. and its consolidated subsidiaries

On October 27, 2020, Definitive OpCo completed the purchase of all of the outst

nding shares of Monocl Holding Company (“Monocl”), a cloud-based platform with millions of expert profiles. Refer to Note 3.

Business Combinations

, for additional information.

Organization

Definitive Healthcare Corp. was formed on May 5, 2021 as a Delaware corporation for the purposes of facilitating an initial public offering (“IPO”) and other related transactions in order to carry on the business of Definitive OpCo, a Delaware limited liability company. Following consummation of the Reorganization Transactions, Definitive OpCo became an indirect subsidiary of Definitive Healthcare Corp.

The Company is headquartered in Framingham, MA, with three other offices in the United States and one in Sweden.

Initial Public Offering

On September 17, 2021, Definitive Healthcare completed its IPO, in which it sold 17,888,888 shares of Class A Common Stock (including shares issued pursuant to the exercise in full of the underwriters’ option to purchase additional shares) at a public offering price of $27.00 per share for net proceeds of $452.8 million, after deducting underwriters’ discounts

and commissions

(but excluding other offering expenses and reimbursements). Definitive Healthcare used proceeds from the IPO to (i) acquire 14,222,222 newly issued limited liability company interests (“LLC Units”) from Definitive OpCo; (ii) purchase 1,169,378 LLC Units from certain holders of LLC Units prior to the IPO; and (iii) repurchase 2,497,288 shares of Class A Common Stock received by the former shareholders of certain Blocker Companies (as defined below).

Reorganization Transactions

In connection with the IPO, the Company completed the following transactions (the “Reorganization Transactions”). Definitive OpCo entered into an amended and restated limited liability company agreement (the “Amended LLC Agreement”) pursuant to which members of Definitive OpCo prior to the IPO who continue to hold LLC Units, have the right to require Definitive OpCo to exchange all or a portion of their LLC Units for newly issued shares of Class A Common Stock. Entities treated as corporations for U.S. tax purposes that hold LLC Units (individually, a “Blocker Company” and collectively, the “Blocker Companies”) each merged with a merger subsidiary and subsequently merged into Definitive Healthcare Corp. Except for AIDH Management Holdings, LLC, members of AIDH Management Holdings, LLC, received a number of shares of Definitive Healthcare Corp. Class B Common Stock with no par value per share. The total shares of Class B Common Stock outstanding is equal to the number of LLC Units outstanding. AIDH Management Holdings, LLC is a special

purpose investment vehicle through which certain persons, primarily our employees and certain legacy investors, indirectly hold interests in Definitive OpCo; the holders of interests in AIDH Management Holdings, LLC received a number of shares of Definitive Healthcare Corp. Class B Common Stock.

In connection with the Reorganization Transactions

and

the IPO,

Definitive

Healthcare Corp. entered into a tax receivable agreement. See Note 15.

Income Taxes

1.	Description of Business

AIDH TopCo, LLC (together with its subsidiaries, “AIDH TopCo” or the “Company”), is a Delaware limited liability company that was formed by investment funds affiliated with Advent International Corporation (“Advent”, the “Sponsor”) for the purpose of acquiring Definitive Healthcare Holdings, LLC (“Definitive Holdco”) and its subsidiary Definitive Healthcare LLC (“Definitive”). On July 16, 2019, AIDH Buyer, LLC (“AIDH Buyer”), a wholly owned subsidiary of the Company, acquired 100% of the issued and outstanding units of Definitive Holdco for $1.7 billion (the “Definitive Holdco Acquisition”). Refer to Note 3.

Business Combinations

, for additional information.

References to “Successor” or “Successor Company” relate to the financial position and results of operations of the Company after the Definitive Holdco Acquisition. References to “Predecessor” or “Predecessor Company” refer to the financial position and results of operations of the legacy Definitive Holdco. Definitive Holdco was formed in 2015 for the purpose of acquiring Definitive, which was founded in 2011 to provide healthcare commercial intelligence that enables all companies that compete within or sell into the healthcare ecosystem to be more successful.

The Company provides comprehensive and

up-to-date

hospital and healthcare-related information and insight across the entire healthcare continuum via a multi-tenant database platform which combines proprietary and public sources to deliver insights.

The Company’s headquarters are located in Framingham, MA, with operations in three offices throughout the United States and one office in Sweden.

On January 16, 2019, Definitive acquired substantially all of the assets and assumed substantially all of the liabilities of HIMSS Analytics, LLC (“HIMSS”). Refer to Note 3.

Business Combinations

, for additional information.

On December 2, 2019, the Company acquired all of the outstanding common and preferred stock of Healthcare Sales Enablement, Inc. (“HSE”). Refer to Note 3.

Business Combinations

, for additional information.

On October 27, 2020, the Company completed the purchase of all of the outstanding shares of Monocl, a cloud-based platform with millions of expert profiles. Refer to Note 3.

Business Combinations

, for additional information.

Summary of Significant Accounting Policies

9 Months Ended

12 Months Ended

May 24, 2021

Sep. 30, 2021

Dec. 31, 2020

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2.	Summary of Significant Accounting Polici e s

Basis of Accounting

The Balance Sheet has been prepared in accordance with generally accepted accounting principles in the United States (“U.S. GAAP”). Separate statements of operations, changes in stockholders’ equity and cash flows have not been presented in the financial statement because there have been no activities in this entity or because the single transaction is fully disclosed below.

2.	Summary of Significant Accounting Policies

Basis of Presentation

The accompanying unaudited condensed

consolidated

financial

statements

have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) and in conformity with rules applicable to quarterly financial information. The Financial Accounting Standards Board (“FASB”) establishes these principles to ensure financial condition, results of operations, and cash flows are consistently reported. Any reference in these notes to applicable accounting guidance is meant to refer to the authoritative nongovernmental GAAP as found in the FASB Accounting Standards Codification (“ASC”). The condensed consolidated financial statements as of September 30, 2021 and for the nine months ended September 30, 2021 and 2020 are unaudited. Amounts for the period from January 1, 2020 through September 15, 2021 presented in the condensed consolidated financial statements and notes to the condensed consolidated financial statements herein represent the historical operations of Definitive OpCo. The amounts as of September 30, 2021 and for the period from September 16, 2021 reflect the consolidated operations of Definitive Healthcare Corp. and its consolidated subsidiaries. All adjustments, consisting of normal recurring adjustments, except as otherwise noted, considered necessary for a fair presentation of the unaudited interim condensed consolidated financial statements for these interim periods have been included.

Refer to Note 2.

Summary of Significant

Accounting

Policies

of the Notes to the Consolidated Financial Statements in the Company’s final prospectus dated September 14, 2021 filed with the Securities and Exchange Commission (“SEC”) pursuant to Rule 424(b) of the Securities Act of 1933, as amended, on September 16, 2021 (the “IPO Prospectus”) for the Company’s accounting policies and estimates.

Adoption of Recently Issued Financial Accounting Standards

In August 2018, the FASB issued ASU No.

2018-15—

Intangibles — Goodwill and Other —

Internal-Use

Software (Subtopic

350-40),

Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract

. This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain

internal-use

software. The amendment is effective for fiscal years beginning after December 15, 2020 and early adoption is permitted. The Company adopted the update effective January 1, 2021. The adoption did not have a material

impact

on the consolidated financial statements.

Recently-Issued Accounting Pronouncements Not Yet Adopted

In February 2016, the FASB issued ASU 2016-02—

Leases

. The new standard establishes a right-of-use (“ROU”) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than twelve months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The FASB has subsequently issued supplemental and/or clarifying ASUs inclusive of ASU 2020-05, which updated the effective date for certain non-public companies to annual reporting periods beginning after December 15, 2021. A modified retrospective transition approach is required for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, or by not adjusting the comparative periods and

recording a cumulative effect adjustment as of the adoption date, with certain practical expedients available. The Company, as an Emerging Growth Company as defined by the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”), can elect to take the extended transition period and adopt the standard following guidance for

non-public

entities which are a part of the “all other” category.

The Company will adopt ASU

2016-02

and all associated amendments on the first day of fiscal 2022 (January 1st, 2022) which includes, as allowed under ASU

2018-11,

the ability to recognize a cumulative-effect adjustment through opening retained earnings as of the date of adoption. The Company will elect the package of practical expedients permitted under the transition guidance, which allows the Company to carryforward its historical assessments of: (1) whether contracts are or contain leases, (2) lease classification and (3) initial direct costs. The Company will not elect the hindsight practical expedient. The Company will elect to use the practical expedient that allows the combination of lease and

non-lease

contract components in all of its underlying asset categories. The Company will also elect a policy of not recording leases on its condensed consolidated balance sheets when the leases have a term of 12 months or less and the Company is not reasonably certain to elect an option to renew the leased asset. The Company is currently evaluating the impact the adoption of this standard will have on its consolidated financial statements

In June 2016, the FASB issued ASU No. 2016-13—

Financial Instruments

–

Credit Losses (Topic 326)

–

Measurement of Credit Losses on Financial Instruments

. This standard is intended to improve financial reporting by requiring earlier recognition of credit losses on financing receivables and other financial assets in scope, such as trade receivables. The amendment is effective for fiscal years beginning after December 15, 2022. The Company will adopt the update effective January 1, 2023 and does not expect the adoption of the standard to have a material impact on its consolidated financial statements.

In December 2019, the FASB issued ASU No.

2019-12—

Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes.

This standard removes certain exceptions for investments, intra-period allocations and interim tax calculations and adds guidance to reduce complexity in accounting for income taxes. The amendment is effective for fiscal years beginning after December 15, 2021 and early adoption is permitted. The Company is currently evaluating the impact of this update on its consolidated financial position or results of operation.

In March 2020, the FASB issued ASU No.

2020-04—

Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

. The amendments of ASU

No. 2020-04

are effective for companies as of March 12, 2020 through December 31, 2022. An entity may elect to apply the amendments for contract modifications by Topic or Industry Subtopic as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020, up to the date that the financial statements are available to be issued. The amendments in this update apply only to contracts, hedging relationships and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform and provide optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. The Company is evaluating the impact that the amendments of this standard would have on its consolidated financial position or results of operations upon adoption.

2.	Summary of Significant Accounting Policies

Basis of Presentation

The consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”). The Financial Accounting Standards Board (“FASB”) establishes these principles to ensure financial condition, results of operations, and cash flows are consistently reported. Any reference in these notes to applicable accounting guidance is meant to refer to the authoritative nongovernmental GAAP as found in the FASB Accounting Standards Codification (“ASC”).

Principles of Consolidation

The consolidated financial statements include the accounts of the Company and its consolidated subsidiaries. All significant intercompany accounts and transactions have been eliminated in consolidation.

Use of Estimates in the Preparation of Financial Statements

The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates, judgements, and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements, as well as the reported amounts of revenues and expenses during the reporting period. These estimates relate, but are not limited to, revenue recognition, allowance for doubtful accounts, contingencies, valuations and useful lives of intangible assets acquired in business combinations, equity-based compensation, and income taxes. Actual results could differ from those estimates.

Revenue Recognition

The Company derives revenue primarily from subscription license fees charged for access to the Company’s database platform, and professional services. The customer arrangements include a promise to allow customers to access subscription license to the database platform which is hosted by the Company over the contract period, without allowing the customer to take possession of the subscription license or transfer hosting to a third party.

The Company recognizes revenue in accordance with ASC 606–

Revenue from Contracts with Customers

, which provides a five-step model for recognizing revenue from contracts with customers. Revenue is recognized upon transfer of control of promised services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those services.

Revenue related to hosted subscription license arrangements, which often include

non-distinct

professional services, is recognized ratably over the contract term as the customer simultaneously receives and consumes the benefits provided by the Company’s performance. These subscription contracts typically have a term of one to three years and are

non-cancellable.

The Company also enters into a limited number of contracts that can include various combinations of professional services, which are generally capable of being distinct and can be accounted for as separate performance obligations. Revenue related to these professional services is insignificant and is recognized at a point in time, when the performance obligations under the terms of the contract are satisfied and control has been transferred to the customer.

When a contract contains multiple performance obligations, the contract transaction price is allocated on a relative standalone selling price (“SSP”) basis to each performance obligation. The Company typically determines SSP based on observable selling prices of its products and services. In instances where SSP is not directly observable, SSP is determined using information that may include market conditions and other observable inputs, or by using the residual approach.

The Company accounts for an arrangement when it has approval and commitment from both parties, the rights are identified, the contract has commercial substance, and collectability of consideration is probable. The Company generally obtains written purchase contracts from its customers for a specified service at a specified price, with a specified term, which constitutes an arrangement. Revenue is recognized at the amount expected to be collected, net of any taxes collected from customers, which are subsequently remitted to governmental authorities. The timing of revenue recognition may not align with the right to invoice the customer, but the Company has determined that in such cases, a significant financing component generally does not exist. The Company has elected the practical expedient that permits an entity not to recognize a significant financing component if the time between the transfer of a good or service and payment is one year or less. Payment terms on invoiced amounts are typically 30 days. The Company does not offer rights of return for its products and services in the normal course of business, and contracts generally do not include customer acceptance clauses.

The Company arrangements typically do not contain variable consideration. However, certain contracts with customers may include service level agreements that entitle the customer to receive service credits, and in certain

cases, service refunds, when defined service levels are not met. These arrangements represent a form of variable consideration, which is considered in the calculation of the transaction price. The Company estimates the amount of variable considerations at the expected value based on its assessment of legal enforceability, anticipated performance and a review of specific transactions, historical experience and market and economic conditions. The Company historically has not experienced any significant incidents that affected the defined levels of reliability and performance as required by the contracts.

Fair Value Measurements

The Company measures assets and liabilities at fair value based on an expected exit price, which represents the amount that would be received on the sale of an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value may be based on assumptions that market participants would use in pricing an asset or liability. The authoritative guidance on fair value measurements establishes a consistent framework for measuring fair value on either a recurring or nonrecurring basis whereby inputs, used in valuation techniques, are assigned a hierarchical level as follows:

Level 1 - Observable inputs that reflect unadjusted quoted prices in active markets for identical assets or liabilities

Level 2 - Other inputs that are directly or indirectly observable in the marketplace

Level 3 - Unobservable inputs that are supported by little or no market activity, including the Company’s own assumptions in determining fair value.

Cash and Cash Equivalents

The Company considers all short-term, highly liquid investments with an original maturity of three months or less to be cash and cash equivalents.

Concentration of Credit Risk and Significant Customers

Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents and accounts receivable. The Company holds cash at major financial institutions that often exceed Federal Deposit Insurance Corporation (“FDIC”) insured limits. The Company manages its credit risk associated with cash concentrations by concentrating its cash deposits in high quality financial institutions and by periodically evaluating the credit quality of the primary financial institutions holding such deposits. The carrying value of cash approximates fair value. Historically, the Company has not experienced any losses due to such cash concentrations. The Company does not have any

off-balance-sheet

credit exposure related to its customers.

Concentrations of credit risk with respect to trade account receivables are limited due to the large number of customers comprising the Company’s customer base. No single customer accounted for more than 10% of total net sales or accounts receivable in 2020 and 2019.

Accounts Receivable, Net and Contract Assets

Accounts receivable are stated at the amount management expects to collect from outstanding balances. Allowances for doubtful accounts are provided for those outstanding balances considered to be uncollectible based upon historical collection experience, changes in customer payment profiles, the aging of receivable balances, and management’s overall evaluation of the outstanding balances at year end. Balances that are still outstanding after management has made reasonable collection efforts are written off through a charge to the allowance for doubtful accounts. At December 31, 2020 and 2019, the allowance for doubtful accounts was $0.9 million and $0.5 million, respectively.

Contract assets represent contractual rights to consideration in the future and are generated when contractual billing schedules differ from the timing of revenue recognition. The Company records accounts receivable when it has the unconditional right to issue an invoice and receive payment regardless of whether revenue has been recognized. If revenue is recognized in advance of the right to invoice, a contract asset (unbilled receivable) is recorded, which is included in accounts receivable, net in the consolidated balance sheet.

Deferred Contract Costs

Certain sales commissions earned by the Company’s employees are considered incremental and recoverable costs of obtaining a contract with a customer. These sales commissions for initial and renewal contracts are capitalized and are included in current portion of deferred contract costs and deferred contract costs, net of current portion. Capitalized amounts also include the associated payroll taxes and other fringe benefits associated with the payments to the Company’s employees.

Costs capitalized related to new revenue contracts are amortized on a straight-line basis over four years, which reflects the average period of benefit, including expected contract renewals. When determining the period of benefit, the Company primarily considered its initial estimated customer life, the technological life of the subscription license, as well as an estimated customer relationship period. Costs capitalized related to renewal contracts are amortized on a straight-basis over 2 years, which reflects the average renewal period. Renewal contracts with a term of one year or less are expensed.

The capitalized amounts are recoverable through future revenue streams under all

non-cancellable

customer contracts. Amortization of capitalized costs to obtain revenue contracts is included in sales and marketing expense in the accompanying consolidated statements of income (loss). Costs capitalized to obtain a revenue contract, net on the Company’s consolidated balance sheets totaled $8.9 million and $2.9 million at December 31, 2020 and 2019, respectively and are included in current portion of deferred contract costs ($2.9 million and $0.8 million, as of December 31, 2020 and 2019, respectively) and deferred contract costs, net of current portion ($6.0 million and $2.1 million, as of December 31, 2020 and 2019, respectively) in the accompanying consolidated balance sheets. There were no impairments of costs to obtain revenue contracts in the years ended December 31, 2020 and 2019.

Property and Equipment, Net

Property and equipment are stated at cost, net of accumulated depreciation and amortization. The assets are depreciated on a straight-line basis over the estimated useful lives as follows:


Furniture and equipment		5 years
Computers and software		3 years
Leasehold improvements		Lesser of the asset life or lease term

Upon retirement or sale, the cost of assets disposed and the related accumulated depreciation are removed from the accounts and any resulting gain or loss is recognized as gain or loss on disposal of assets in the consolidated statements of income (loss). Major replacements and improvements are capitalized, while general repairs and maintenance are charged to expense as incurred.

Advertising and Promotional Expenses

The Company expenses advertising costs as incurred in accordance with ASC 720—

Other Expenses – Advertising Cost

. Advertising expenses of $0.6 million for the year ended December 31, 2020 (Successor) and $0.2 million and $0.2 million for the periods from July 16, 2019 through December 31, 2019 (Successor), and from January 1, 2019 through July 15, 2019 (Predecessor), respectively, are included in sales and marketing on the consolidated statements of income (loss).

Software Development Costs

The Company accounts for its software development costs in accordance with the guidance set forth in ASC

350-40,

Intangibles – Goodwill and Other – Internal Use Software.

The Company capitalizes costs to develop software for internal use incurred during the application development stage. Costs related to preliminary project activities and post implementation activities are expensed as incurred. Capitalized costs of $0.1 million for the year ended December 31, 2020, are included in property and equipment, net. Software development costs are amortized over a period of 3 years once in service. No software development costs were capitalized during the periods from July 16, 2019 to December 31, 2019 (Successor) or from January 1, 2019 through July 15, 2019 (Predecessor).

Business Combinations

The Company accounts for business combinations using the acquisition method in accordance with ASC 805,

Business Combinations

. Each acquired company’s operating results are included in the Company’s consolidated financial statements starting on the date of acquisition. The Company allocates purchase consideration to the tangible and identifiable intangible assets acquired, and liabilities assumed based on their estimated fair values. The purchase price is determined based on the fair value of the assets transferred, liabilities assumed, and equity interests issued, after considering any transactions that are separate from the business combination. The excess of fair value of purchase consideration over the fair values of the identifiable assets and liabilities is recorded as goodwill. Tangible and identifiable intangible assets acquired and liabilities assumed as of the date of acquisition are recorded at the acquisition date fair value. Such valuations require management to make significant estimates and assumptions, especially with respect to intangible assets and contingent liabilities. Significant estimates in valuing certain intangible assets include, but are not limited to, future expected cash flows from acquired customer bases, acquired technology and acquired trade names, useful lives, royalty rates, and discount rates.

The estimates are inherently uncertain and subject to revision as additional information is obtained during the measurement period for an acquisition, which may last up to one year from the acquisition date. During the measurement period, the Company may record adjustments to the fair value of tangible and intangible assets acquired and liabilities assumed, with a corresponding offset to goodwill. After the conclusion of the measurement period or the final determination of the fair value of assets acquired or liabilities assumed, whichever comes first, any subsequent adjustments are recorded to earnings.

In addition, uncertain tax positions and

tax-related

valuation allowances assumed in connection with a business combination are initially estimated as of the acquisition date. The Company reevaluates these items based upon the facts and circumstances that existed as of the acquisition date, with any revisions to the Company’s preliminary estimates being recorded to goodwill, provided that the timing is within the measurement period. Subsequent to the measurement period, changes to uncertain tax positions and tax related valuation allowances will be recorded to earnings.

For any given acquisition, the Company may identify certain

pre-acquisition

contingencies. The Company estimates the fair value of such contingencies, which are included as part of the assets acquired or liabilities assumed, as appropriate. Differences from these estimates are recorded in the consolidated statement of operations in the period in which they are identified.

Goodwill and Intangible Assets

Goodwill is calculated as the excess of the purchase consideration paid in the acquisition of a business over the fair value of the identifiable assets acquired and liabilities assumed. Goodwill is not amortized and is tested for impairment at the reporting unit level, at least annually, and more frequently if events or circumstances occur that would indicate a potential decline in fair value.

A reporting unit is an operating segment or a component of an operating segment. The Company first assesses qualitative factors to evaluate whether it is more likely than not that the fair value of a reporting unit is less than the carrying amount, or it may elect to bypass such assessment. If it is determined that it is more likely than not that the fair value of the reporting unit is less than its carrying value, or if the Company elects to bypass the qualitative assessment, management will perform a quantitative test by determining the fair value of the reporting unit. The estimated fair value of the reporting unit is based on a projected discounted cash flow model that includes significant assumptions and estimates, including the discount rate, growth rate, and future financial performance. Valuations of similarly situated public companies are also evaluated when assessing the fair value of the reporting unit. If the carrying value of the reporting unit exceeds the fair value, then a goodwill impairment loss is recognized for the difference. The Company performs its annual impairment assessment in the first month of the fourth quarter of each calendar year.

Definite-lived intangible assets are amortized over their estimated useful lives,

which represent the period over which the Company expects to realize economic value from the acquired asset(s), using the economic consumption method if anticipated future revenues can be reasonably estimated. The straight-line method is used when future revenues cannot be reasonably estimated. The following provides a summary of the estimated useful lives by category of asset.


Customer relationships		14 – 15 years
Technology		7 – 8 years
Tradenames / trademark		17 – 19 years
Data		1– 4 years

Impairment of Long-Lived Assets

The Company reviews the carrying value of property and equipment and other long-lived assets, including definite-lived intangible assets and property and equipment, for impairment whenever events and circumstances indicate that the carrying value of an asset may not be recoverable. If estimated undiscounted future cash flows expected to result from its use and eventual disposition are not expected to be adequate to recover the asset’s carrying value, an impairment charge is recorded for the excess of the asset’s carrying value over its estimated fair value.

Deferred Revenue

Deferred revenue consists of customer payments and billings in advance of revenue being recognized from the subscription services. If revenue has not yet been recognized, a contract liability (deferred revenue) is recorded. Deferred revenue that is anticipated to be recognized within the next 12 months is recorded as current portion of deferred revenue and the remaining portion is included in deferred revenue on the consolidated balance sheets.

Debt Issuance Costs

Costs incurred in connection with the issuance of long-term debt are deferred and amortized as interest expense over the terms of the related debt using the effective interest method for term debt and on a straight-line basis for revolving debt. To the extent that the debt is outstanding, these amounts are reflected in the consolidated balance sheets as direct deductions from the long-term portions of debt, except for the costs related to the Company’s revolving credit facilities, which are presented as a

non-current

asset on the consolidated balance sheets within other assets. Upon a refinancing or amendment, previously capitalized debt issuance costs are expensed and included in loss on extinguishment of debt, if the Company determines that there has been a substantial modification of the related debt. If the Company determines that there has not been a substantial modification of the related debt, any previously capitalized debt issuance costs are amortized as interest expense over the term of the new debt instrument. As of December 31, 2020 and 2019, the Company had $10.9 million and $12.6 million, respectively, of unamortized deferred financing costs related to its

non-revolving

credit facilities.

Deferred Initial Public Offering Costs

The Company capitalizes deferred initial public offering (“IPO”) costs, which primarily consist of direct, incremental legal, professional, accounting and other third-party fees relating to the Company’s initial public offering, within other

non-current

assets. The deferred IPO costs will be offset against IPO proceeds upon the consummation of an offering. Should the planned IPO be abandoned, the deferred issuance costs will be expensed immediately as a charge to operating expenses in the consolidated statement of (loss) income. There were no deferred IPO costs as of December 31, 2020.

Sales Tax

The Company’s revenues may be subject to local sales taxes in certain states, if applicable. It is the Company’s policy to treat all such taxes on a “net” basis, which means the charges for sales taxes to the Company’s customers are not included in revenues and the remittance of such taxes is not presented as an expense.

Income Taxes

AIDH TopCo, LLC is taxed as a partnership. Definitive Healthcare Holdings, LLC is a wholly owned subsidiary of AIDH TopCo, LLC and is treated as a disregarded entity for income tax purposes. Accordingly, for federal and state income tax purposes, income, losses, and other tax attributes not generated by the HSE or Monocl subsidiaries pass through to the AIDH TopCo, LLC members’ income tax returns. The Company may be subject to certain taxes on behalf of its members in certain states. Definitive Healthcare Holdings was not subject to any federal income taxes for the tax years ended December 31, 2020 and 2019, nor was it subject to state income taxes in certain jurisdictions for the tax years ended December 31, 2020 and 2019.

HSE and the Monocl US subsidiaries are taxed as corporations. Accordingly, these entities account for income taxes by recognizing tax assets and liabilities for the cumulative effect of all the temporary differences between financial statement carrying amounts and the tax basis of assets and liabilities. The foreign tax provision pertains to foreign income taxes due at the Swedish Monocl subsidiaries. Deferred taxes for the HSE, Monocl US and Swedish subsidiaries are determined using enacted federal, state, or foreign income tax rates in effect in the year in which the differences are expected to reverse. Valuation allowances are provided if based upon the weight of available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized. The Company has provided for these taxes. The aggregate of such taxes is not material and is included in general and administrative in the accompanied statement of operations.

Under the provisions of ASC 740

, Income Taxes

, as it relates to accounting for uncertainties in tax positions, the Company recognizes the tax benefit of tax positions to the extent that the benefit will more likely than not be realized. The determination as to whether the tax benefit will more likely than not be realized is based upon the technical merits of the tax position as well as consideration of the available facts and circumstances. For the tax years ended December 31, 2020 and 2019, the Company did not have any uncertain tax positions.

Net Loss Per Unit

Net income or loss per unit is computed in conformity with the

two-class

method required for participating securities. The

two-class

method of computing earnings per share is required for entities that have participating securities. The

two-class

method is an earnings allocation formula that determines earnings per share for participating securities according to dividends declared (or accumulated) and participation rights in undistributed earnings. The participating securities do not include a contractual obligation to share in losses of the Company and are not included in the calculation of net loss per share in the periods in which a net loss is recorded.

Basic net income or loss per unit is computed by dividing the net income or loss by the weighted-average number of common units of the Company outstanding during the period. Diluted net income or loss per unit is

computed by giving effect to all potential units of common units, including outstanding incentive units, to the extent dilutive. The Company uses the treasury stock method to calculate potentially dilutive shares, as if they were converted into common stock at the beginning of the period. Basic and diluted net income or loss per unit was the same for each period presented as the inclusion of all potential units of common units outstanding would have been anti-dilutive.

All net earnings (loss) for the Predecessor period from January 1, 2019 to July 15, 2019 were entirely allocable to Predecessor members. Additionally, due to the impact of the Definitive Holdco Acquisition, the Company’s capital structure for the Predecessor and Successor periods is not comparable. As a result, the presentation of earnings (loss) per share for the periods prior to such transaction is not meaningful and only earnings (loss) per unit for periods subsequent to the Definitive Holdco Acquisition are presented herein. See Note 16.

Net Loss

Per

Unit

for additional information on dilutive securities.

Equity-based Compensation

The Company periodically grants equity units to employees, consultants, directors, managers, or others providing service. These units are considered profit interests, which in general, entitle the holder of the unit to a pro rata share of the increase in fair value of the unit over the base value, which is determined at the award date, and are deemed to be equity instruments. Certain units have time-based and performance-based vesting criteria.

The Company accounts for these profit interest units in accordance with ASC 718—

Compensation – Stock Compensation.

Equity-based compensation is recognized on a straight-line basis over the requisite service period of the award, which is generally the vesting period of the respective award, based on their grant-date fair value. For the units which have a performance condition, the Company recognizes compensation expense based on its assessment of the probability that the performance condition(s) will be achieved. The related compensation expense is recognized when the probability of the event is likely and performance criteria are met. Forfeitures are recognized as they occur.

The Company classifies equity-based compensation expense in its consolidated statements of (loss) income in the same manner in which the award recipient’s salary and related costs are classified.

Adoption of Recently Issued Financial Accounting Standards

In May 2014, the FASB issued ASC 606—

Revenue from Contracts with Customers

(“ASC 606”), which amended the accounting standards for revenue recognition and expanded the Company’s disclosure requirements. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASC 606 also includes Subtopic

340-40,

Other Assets and Deferred Costs – Contracts with Customers

, which requires the deferral of incremental costs of obtaining a contract with a customer. This standard also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments.

The Company adopted ASC 606 effective January 1, 2019 under the modified retrospective method, which resulted in an adjustment at January 1, 2019 of $5.4 million to members’ capital for the cumulative effect of applying the standard to all contracts not completed as of the adoption date.

The adjustment primarily related to deferred contract costs, including incremental employee sales commissions and other employee compensation arrangements, and adjustments to deferred and unbilled revenues of $4.3 million and $1.1 million, respectively. The cost of all incremental commissions and other employee compensation arrangements are deferred and amortized on a straight-line basis over the expected period of benefit, generally between two and four years. The deferred and unbilled revenues were adjusted upon adoption to better align the recognition of revenues with the timing of transfer of control to the customer.

The cumulative effect of applying the new guidance was recorded as an adjustment to members’ capital as of the adoption date.

As a result of applying the modified retrospective method to adopt the new revenue guidance, the following adjustments were made to the consolidated balance sheet as of January 1, 2019.


	As reported December 31, 2018		ASC 606 Adjustments			As Adjusted January 1, 2019
Consolidated Balance Sheet:
Accounts receivable, net	$	14,932	$	367		$	15,299
Current portion of deferred contract costs		—		1,346			1,346
Total current assets		35,176		1,713			36,889
Deferred contract costs, net of current portion		—		2,973			2,973

Total assets	$	87,061	$	4,686		$	91,747
Current portion of deferred revenue		32,187		(729	)		31,458
Total current liabilities		36,676		(729	)		35,947

Total liabilities		36,676		(729	)		35,947
Members’ capital		50,385		5,415			55,800

Total liabilities and members’ capital	$	87,061	$	4,686		$	91,747

The following tables compare the reported consolidated balance sheet as of December 31, 2019 and statements of (loss) income for the periods from July 16, 2019 to December 31, 2019 and January 1, 2019 to July 15, 2019, to the adjusted amounts had ASC 605

the previous revenue recognition standard, been in effect:


	As Reported December 31, 2019		Adjustments			As Adjusted December 31, 2019
Consolidated Balance Sheet:
Accounts receivable, net	$	25,021	$	(250	)	$	24,771
Current portion of contract assets		769		(769	)		—

Total current assets		36,107		(1,019	)		35,088
Contract assets, net of current portion		2,116		(2,116	)		—
Total assets		1,721,154		(3,135	)		1,718,019

Current portion of deferred revenue		45,977		990			46,967
Total current liabilities		69,917		990			70,907
Total liabilities		504,914		990			505,904
Members’ capital (deficit)		1,216,240		(4,125	)		1,212,115

Total liabilities and members’ capital (deficit)	$	1,721,154	$	(3,135	)	$	1,718,019


	Predecessor Company
	As Reported Period from January 1, 2019 to July 15, 2019			Adjustments			As Adjusted Period from January 1, 2019 to July 15, 2019
Revenue	$	45,458		$	(79	)	$	45,379

Total cost of revenue		5,328			—			5,328

Gross profit		40,130			(79	)		40,051
Sales and marketing		16,039			1,416			17,455
Total operating expenses		27,097			1,416			28,513

Income (loss) from operations		13,033			(1,495	)		11,538
Total other expense, net		(165	)		—			(165	)

Net income (loss)	$	12,868		$	(1,495	)	$	11,373


	Successor Company
	As Reported Period from July 16, 2019 to December 31, 2019			Adjustments			As Adjusted Period from July 16, 2019 to December 31, 2019
Revenue	$	40,045		$	(66	)	$	39,979

Total cost of revenue		13,282			—			13,282

Gross profit		26,763			(66	)		26,697
Sales and marketing		10,814			2,885			13,699
Total operating expenses		57,825			2,885			60,710

Loss from operations		(31,062	)		(2,951	)		(34,013	)
Total other expense, net		(18,204	)		—			(18,204	)

Net loss	$	(49,266	)	$	(2,951	)	$	(52,217	)

In January 2017, the FASB issued ASU No.

2017-04

—Goodwill and Other (Topic 350) – Simplifying the Test for Goodwill Impairment.

ASU

2017-04

simplifies the accounting for goodwill impairments by eliminating step 2 from the goodwill impairment test. The amendment is effective for fiscal years beginning after December 15, 2020. The Company adopted this standard on January 1, 2019. The adoption did not have a material impact on the Company’s financial statements.

In June 2018, the FASB issued ASU

No. 2018-07

—Compensation—Stock Compensation (Topic 718), Improvements to Nonemployee Share-based Payment Accounting

. This standard aligns most of the guidance on share-based payments to nonemployees with share-based payments to employees. The amendment is effective for fiscal years beginning after December 15, 2019 and interim periods within fiscal years beginning after December 15, 2020, with early adoption permitted. The Company adopted the update in its 2020 annual and interim periods. The adoption did not have an impact on the consolidated financial statements.

Recently-Issued Accounting Pronouncements Not Yet Adopted

In February 2016, the FASB issued ASU

2016-02—

Leases

. The new standard establishes a

right-of-use

(“ROU”) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than twelve months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The new standard is effective for private companies with annual reporting periods beginning after December 15, 2021. A modified retrospective transition approach is required for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, or by not adjusting the comparative periods and recording a cumulative effect adjustment as of the adoption date, with certain practical expedients available. The Company is currently evaluating the impact the adoption of this standard will have on its consolidated financial statements.

In June 2016, the FASB issued ASU No.

2016-13

—Financial Instruments—Credit Losses (Topic 326)—Measurement of Credit Losses on Financial Instruments.

This standard is intended to improve financial reporting by requiring earlier recognition of credit losses on financing receivables and other financial assets in scope, such as trade receivables. The amendment is effective for fiscal years beginning after December 15, 2022. The Company will adopt this effective January 1, 2023 and does not expect the adoption of the standard to have a material impact on its consolidated financial statements.

In August 2018, the FASB issued ASU No.

2018-15—

Intangibles—Goodwill and

Other—Internal-Use

Software (Subtopic

350-40),

Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract

. This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing

implementation costs incurred to develop or obtain

internal-use

software. The amendment is effective for fiscal years beginning after December 15, 2020 and early adoption is permitted. The adoption did not have a material impact on its consolidated financial statements.

In December 2019, the FASB issued ASU No.

2019-12—

Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes

In March 2020, the FASB issued ASU No.

2020-04—

Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

. The amendments of ASU

No. 2020-04

are effective for companies as of March 12, 2020 through December 31, 2022. An entity may elect to apply the amendments for contract modifications by Topic or Industry Subtopic as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020, up to the date that the financial statements are available to be issued. The amendments in this update apply only to contracts, hedging relationships and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform and provide optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. The Company is evaluating the impact that the amendments of this standard would have on the Company’s consolidated financial position or results of operations upon adoption.

Business Combinations

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Business Combinations [Abstract]

Business Combinations

3.	Business Combinations

On October 27, 2020, the Company completed the purchase of all outstanding shares of Monocl for a total estimated consideration of $46.3 million

and up to $60 million,

summarized as follows:


(in thousands)
Cash consideration	$	18,307
Equity issuance		25,439
Contingent consideration		2,600

Purchase price	$	46,346

The assets acquired and liabilities assumed were recorded at their estimated fair values and the results of operations were included in the Company’s consolidated results as of the acquisition date.

The contingent consideration performance targets for earnout payments are based on the contractual Annual Recurring Revenue (“ARR”) for each of the twelve-month periods ending December 31, 2020 and December 31, 2021. Potential payouts range from

$0 to $5.0 million and $0 to $10.0 million based on ARR of below $8.5 million to over $9.5 million and below $12.0 million to over $16.0 million for each of the twelve-month periods ending December 31, 2020 and 2021, respectively.

The Company estimated the fair value of contingent consideration to be $6.9 million and $5.2 million at September 30, 2021 and December 31, 2020, respectively, based on the achievement of 2020 ARR targets and the probability of achieving the 2021 targets. Refer to Note 9.

Fair Value Measurements

for more detail.

The purchase accounting for the Monocl acquisition was finalized as of December 31, 2020. The fair values assigned to tangible and identified intangible assets acquired and liabilities assumed were based on management’s estimates and assumptions. The final allocation of the acquisition-date fair values of assets and liabilities as of December 31, 2020, was as follows:


(in thousands)
Preliminary allocation:	October 27, 2020
Cash	$	2,774
Accounts receivable		788
Prepaid expenses and other current assets		614
Property and equipment		20
Intangible assets		18,900
Accounts payable and accrued expenses		(2,137	)
Deferred revenue		(2,884	)

Total assets acquired and liabilities assumed		18,075
Goodwill		28,271

Purchase price	$	46,346

he Company recorded goodwill, customer relationships, data, technology, and trademark of $28.3 million, $11.9 million, $3.0 million, $2.6 million and $1.4 million, respectively, as of the acquisition date. The goodwill recognized includes the fair value of the assembled workforce and any expected synergies gained through the acquisition. The Company determined that the goodwill resulting from the acquisition is not deductible for tax purposes.

Customer relationships represent the estimated fair value of the underlying relationships with the acquired entity’s business customers and are amortized using the annual pattern of cash flows (economic value method) over the estimated

14-year

life of this asset.

Data includes proprietary data on medical and scientific expert personnel. The technology recognized includes Monocl’s existing technology and provides users with a cloud-based platform with millions of expert profiles generated using machine learning and tailored algorithms through an online platform. This technology provides the automated collection of content sources, data processing and augmentation, and ultimately the generation of contextually relevant and continuously updated expert profiles. The trademark represents the estimated fair value of the registered trademarks, logo and domain names associated with the Monocl corporate brand. The data, technology, and trademark are amortized using the straight-line method over the estimated remaining useful life of 3 years, 8 years, and 19 years, respectively.

In connection with the acquisition, the Company recognized acquisition related costs of $0.4 million which were recorded within transaction expenses in the accompanying consolidated statements of income (loss)

The results of operations of Monocl are included in the Company’s consolidated results since the date of acquisition. The revenue and net loss of Monocl reflected in the consolidated statements of operations for the year ended December 31, 2020 were $1.2 million and $1.6 million, respectively.

Unaudited Pro Forma Supplementary Data:


	Nine Months Ended September 30, 2020
(in thousands)
Revenue	$	91,750
Net loss		(43,763	)

The pro forma net loss includes adjustments to amortization expense for the valuation of other intangible assets of $0.6 million and interest expense related to incremental borrowings used to finance the transaction of $0.8 million and for the nine months ended September 30, 2020. The unaudited pro forma supplementary data is provided for informational purposes only and should not be construed to be indicative of the Company’s results of operations had the acquisition been consummated on the date assumed or of the Company’s results of operations for any future date.

3.	Business Combinations

On October 27, 2020, the Company completed the purchase of all of the outstanding shares of Monocl Holding Company (“Monocl”), a cloud-based platform with millions of expert profiles, for a total estimated consideration of $46.3 million and up to $60.0 million, consisting of approximately $18.3 million of cash payable at closing, $25.4 million of rollover equity, and up to $15.0 million of contingent consideration. The contingent consideration, which relates to

earn-out

payments that may be paid out upon the achievement of certain performance targets has an estimated fair value of $2.6 million as of the acquisition date. The assets acquired and liabilities assumed were recorded at their estimated fair values and the results of operations were included in the Company’s consolidated results as of the acquisition date.

The consideration transferred for the transaction is summarized as follows (in thousands):


Cash consideration	$	18,307
Equity issuance		25,439
Contingent consideration		2,600

Purchase price	$	46,346

Cash consideration for the acquisition was primarily provided through borrowings under the Company’s credit facility.

The performance targets for the contingent consideration are based on the Annual Recurring Revenue (“ARR”), measured as annually contractual recurring revenue for each of the twelve-month periods ending December 31, 2020 and December 31, 2021. Potential payouts range from $0 to $5.0 million and $0 to $10 million based on ARR of below $8.5 million to over $9.5 million and below $12.0 million to over $16.0 million for each of the twelve month periods ending December 31, 2020 and 2021, respectively.

The Company estimated the fair value of the contingent consideration to be $5.2 million at December 31, 2020 based on the achievement of Annual 2020 ARR targets and the probability of achieving the 2021 targets. Refer to note 9. Fair Value Measurements for more detail.

The purchase accounting for the Monocl acquisition was finalized as of December 31, 2020. The final allocation of the acquisition-date fair values of assets and liabilities pertaining to this business combination as of December 31, 2020, was as follows (in thousands):


	October 27, 2020
Cash	$	2,774
Accounts receivable		788
Prepaid expenses and other current assets		614
Property and equipment		20
Intangible assets		18,900
Accounts payable and accrued expenses		(2,137	)
Deferred revenue		(2,884	)

Total assets acquired and liabilities assumed		18,075
Goodwill		28,271

Purchase price	$	46,346

As a result of the Monocl acquisition, the Company recorded goodwill, customer relationships, data, technology, and trademark of $28.3 million, $11.9 million, $3.0 million, $2.6 million and $1.4 million, respectively, as of the acquisition date. The goodwill recognized includes the fair value of the assembled workforce, which is not recognized as an intangible asset separable from goodwill, and any expected synergies gained through the acquisition. The Company determined that the goodwill resulting from the acquisition is not deductible for tax purposes. In connection with the acquisition, the Company also recorded deferred revenue of $2.9 million and a contingent consideration liability of $2.6 million. See Note 9.

Fair Value Measurements

for more detail on determination of fair value.

Customer relationships represent the estimated fair value of the underlying relationships with the acquired entity’s business customers. The Company valued customer relationships using the income approach, specifically the excess earnings method. Significant assumptions include forecast of revenues, cost of revenues, estimated attrition rates, and discount rates reflecting the different risk profiles of the asset depending upon the acquisition. The value assigned to customer relationships is $11.9 million and is amortized using the annual pattern of cash flows (economic value method) over the estimated

14-year

life of this asset.

Data includes proprietary data on medical and scientific expert personnel. The Company used the cost approach, specifically the replacement cost method to value the data. The Fair value of the data was estimated to be $3.0 million and is amortized using the straight-line method over the estimated remaining useful life of 3 years.

The technology recognized includes Monocl’s existing technology and provides users with a cloud-based platform with millions of expert profiles generated using machine learning and tailored algorithms through an online platform. This technology provides the automated collection of content sources, data processing and augmentation, and ultimately the generation of contextually relevant and continuously updated expert profiles. The Company used the income approach, specifically the relief-from-royalty method, to determine the value of technology, which was valued at $2.6 million and is amortized using the straight-line method over the estimated remaining useful life of 8 years.

The trademark represents the estimated fair value of the registered trademarks, logo and domain names associated with the Monocl corporate brand. The Company estimated the fair value of the trademark using a relief from royalty method. Significant assumptions include forecast of royalty rate, company revenues, tax rate, and discount rate. The trademark was valued at $1.4 million and is amortized using the straight-line method over the estimated remaining useful life of 19 years.

The weighted average amortization period for the customer relationships, tradenames, technology, and data is 15 years, 17 years, 8 years and 3 years, respectively. See Note 7 for the estimated total intangible amortization expense during the next five years.

The net loss of Monocl is included in the Company’s consolidated results since the date of acquisition. The revenue and net loss of Monocl reflected in the consolidated statements of income (loss) for the year ended December 31, 2020 (Successor) were $1.2 million and $1.6 million, respectively.

Unaudited Pro Forma Supplementary Data


(in thousands)	Year Ended December 31, 2020			Year Ended December 31, 2019
Revenue	$	122,333		$	87,157
Net loss		(58,350	)		(97,134	)

The unaudited pro forma supplementary data presented in the table above shows the effect of the Monocl and Definitive Holdco Acquisitions, as if the transactions had occurred at the beginning of fiscal year 2019. The pro forma net loss includes adjustments to amortization expense for the valuation of other intangible assets of $0.8 million and $1.2 million and interest expense related to incremental borrowings used to finance the transaction of $1.0 million and $1.2 million for the years ended December 31, 2020 and 2019, respectively. Acquisition expenses of $0.4 million were excluded from the pro forma net loss for the year ended December 31, 2020 and included in the pro forma net loss for the year-ended December 31, 2019. The unaudited pro forma supplementary data is provided for informational purposes only and should not be construed to be indicative of the Company’s results of operations had the acquisition been consummated on the date assumed or of the Company’s results of operations for any future date.

2019 acquisitions

Definitive Holdco (“Definitive Holdco Acquisition”)

On July 16, 2019, Advent, our Sponsor, entered into an agreement with Definitive Holdco (the “Agreement”) to, among other things, acquire 100% of its issued and outstanding units, for a total consideration of $1,699.6 million, consisting of $1,129.3 million of cash and $570.3 million of equity units issued to the sellers and former owners.

For purposes of the Agreement, affiliated legal entities of Advent include Advent IX Funds, AIDH Holdings, Inc. (“AIDH Holdings”), AIDH TopCo, AIDH Buyer, and AIDH Finance Sub, LLC (“AIDH Finance Sub”).

Advent IX Funds owns 100% of the outstanding units of AIDH Holdings. AIDH Holdings owns 55% of the outstanding units of the Company, with the remaining interests (45%) issued to the prior owners of Definitive Holdco as rollover units. The Company owns 100% of outstanding units of AIDH Buyer. Upon acquisition, AIDH Buyer owns 100% of Definitive Holdco.

The transactions outlined in the Agreement were executed as follows:

1. Debt Financing. Immediately prior to closing of the Agreement, AIDH Finance Sub, an affiliated legal entity of Advent, entered into debt financing agreements for a $450.0 million term loan payable (the “2019 Term Loan”), a $100.0 million delayed draw term loan payable (the “2019 Delayed Draw Term Loan”), and a $25.0 million revolving debt facility (the “2019 Revolving Debt Facility). See Note 8, for more detail. These financing agreements were collateralized by 100% of AIDH Finance Sub capital prior to the Finance Merger, defined below.

2. Finance Merger. Upon closing the Agreement, AIDH Finance Sub was merged with Definitive Holdco (surviving entity). After the merger, the financing agreements were collateralized by 100% of AIDH Buyer and Definitive Holdco units.

3. Distribution and Purchase of Units. Immediately after the Finance Merger, net proceeds from the debt financing (approximately $432.4 million) were paid to the prior owners of Definitive Holdco. Additionally, AIDH Buyer distributed $1,267.3 million (cash of $697.0 million and rollover equity of $570.3 million in the Company) as purchase consideration for all outstanding units of Definitive Holdco.

The consideration transferred for the transaction is summarized as follows (in thousands):


Cash consideration	$	1,129,346
Common units issued		570,266

Purchase price	$	1,699,612

Of the total cash consideration, $1,122.4 million was paid upon closing and $6.9 million in July 2020. Cash consideration for the acquisition was partly provided by net proceeds from the 2019 Term Loan, as outlined above.

The purchase accounting for the Definitive Holdco Acquisition, was finalized as of July 16, 2020. The final allocation of the acquisition-date fair values of assets and liabilities pertaining to this business combination as of July 16, 2020, was as follows (in thousands).


	Predecessor Company			Successor Company
	Carrying Values as of July 15, 2019			Fair Value Adjustments			Final Allocations July 16, 2019
Cash	$	17,058		$	—		$	17,058
Accounts receivable		12,747			—			12,747
Deferred contract costs		5,735			(5,735	)		—
Prepaid expenses and other current assets		1,539			150			1,689
Other assets		49			—			49
Property and equipment		2,201			—			2,201
Intangible assets		19,108			456,292			475,400
Accounts payable and accrued expenses		(5,477	)		684			(4,793	)
Deferred revenue		(38,278	)		6,278			(32,000	)

Total assets acquired and liabilities assumed		14,682			457,669			472,351
Goodwill	$	82,767		$	1,144,494			1,227,261

Total purchase price							$	1,699,612

The adjustments set forth in the following consolidated balance sheet as of July 15, 2019, reflect the effect of the Debt Financing and Finance Merger (reflected in the column “Debt Financing / Finance Merger”), and the fair value adjustments to assets acquired and liabilities assumed, as a result of the purchase accounting, in connection with the Definitive Holdco Acquisition (reflected in the column “Fair Value Adjustments”) (in thousands):


	Predecessor July 15, 2019		Debt Financing / Finance Merger			Fair Value Adjustments			Successor July 16, 2019
Cash	$	17,058	$	—		$	—		$	17,058
Accounts receivable		12,747		—			—			12,747
Prepaid expenses and other current assets		1,539		16			150			1,705
Deferred contract costs		5,735		—			(5,735	)		—
Property and equipment		2,201		—			—			2,201
Intangible assets		19,108		—			456,292			475,400
Goodwill		82,767		—			1,144,494			1,227,261
Other assets		49		14,589			—			14,638

Total assets	$	141,204	$	14,605		$	1,595,201		$	1,751,010

Accounts payable and accrued expenses	$	5,477	$	10,407		$	(684	)	$	15,200
Deferred revenue		38,278		—			(6,278	)		32,000
Term Loan		—		436,553			—			436,553

Total liabilities		43,755		446,960			(6,962	)		483,753
Members’ Capital		97,449		(432,355	)		1,602,163			1,267,257

Total liabilities and equity	$	141,204	$	14,605		$	1,595,201		$	1,751,010

The Company recorded adjustments to goodwill of $1,144.5 million, and intangible assets of $456.3 million, as of the acquisition date of July 16, 2019, including adjustments to customer relationships, technology, tradenames and data of $340.8 million, $48.5 million, $32.7 million and $34.3 million, respectively.

The goodwill recognized includes the fair value of the assembled workforce, which is not recognized as an intangible asset separable from goodwill, and any expected synergies gained through the acquisition. The Company determined that the goodwill resulting from the acquisition was in part deductible for tax purposes.

The Company performed an ASC 805 fair valuation of the acquired identifiable intangible assets as of July 16, 2019. Key assumptions used to determine such fair values included growth rates, retention/attrition, research and development expenses, operating expenses, selling and marketing expenses, tax rates, royalty rates, obsolescence, utilization factors and others.

Customer relationships represent the estimated fair value of the underlying relationships with the Company’s customers. The Company valued customer relationships using the income approach, specifically the excess earnings method. Significant assumptions include forecast of revenues, cost of revenues, estimated attrition rates, and discount rates reflecting the different risk profiles of the asset depending upon the acquisition. The value assigned to customer relationships is $358.0 million and is amortized using the annual pattern of cash flows (economic value method) over the estimated

15-year

life of this asset.

The technology recognized includes Definitive’s existing technology, which provides users access to

in-depth

and interactive analytics of high quality and

up-to-date

healthcare data through an online platform, and provides for user customization as well as watchlist functionality, advanced search functionality and integration with customer’s other internal and external systems. The Company used the income approach, specifically the relief-from-royalty method, to determine the value of technology, which was valued at $48.5 million and is amortized using the straight-line method over the estimated remaining useful life of 10 years.

Tradenames includes the estimated fair value of the acquired registered trademarks, logo and domain names associated with the Definitive Healthcare corporate brand. The Company estimated the fair value of the trademark using a relief from royalty method. Significant assumptions include forecast of royalty rate, company revenues, tax rate, and discount rate. The trademark was valued at $34.1 million and is amortized using the straight-line method over the estimated remaining useful life of 22 years.

Data includes proprietary data and insights on healthcare providers, including coverage of providers across the healthcare ecosystem from hospitals to physician groups to ambulatory surgery centers and accountable care organizations. The Company used the cost approach, specifically the replacement cost method to value the data. The Fair Value of the Data was estimated to be $34.8 million and is amortized using the straight-line method over the estimated remaining useful live of 3 years.

The fair value of deferred revenue was estimated at $32.0 million, using the income approach, specifically the cost

build-up

method, and was calculated as the estimated cost for the Company to fulfill the contractual obligations plus a normal profit margin.

The following table reconciles the purchase price to the capital contribution made by Sponsor as July 16, 2019 (in thousands):


Total purchase price	$	1,699,612
Transaction costs paid from proceeds		4,004
Less Debt Financing		436,359

Capital Contribution	$	1,267,257

The results of Definitive Holdco are included in the Company’s consolidated results since the date of acquisition. The revenue of Definitive Holdco reflected in the consolidated statements of income (loss) for the year ended December 31, 2020 (Successor), period from July 16, 2019 to December 31, 2019 (Successor) and the period from January 1, 2019 to July 15, 2019 (Predecessor) was $116.9 million, $40.0 million and $45.5 million, respectively. The net (loss) income of Definitive Holdco, reflected in the consolidated statements of income (loss) for the year ended December 31, 2020 (Successor), period from July 16, 2019 to December 31, 2019 (Successor) and the period from January 1, 2019 to July 15, 2019 (Predecessor) was ($49.9 million), ($49.2 million) and $12.9 million, respectively.

Unaudited Pro Forma Supplementary Data


(in thousands)	Year Ended December 31, 2019
Revenue	$	84,122
Net loss		(92,228	)

The unaudited pro forma supplementary data presented in the table above shows the effect of the Definitive Holdco acquisition, as if the transaction had occurred at the beginning of fiscal year 2019. The pro forma net loss for the year-ended December 31, 2019 includes interest expense related to incremental borrowings used to finance the transaction of $21.0 million, adjustments to amortization expense for the valuation of other intangible assets of $33.4 million and fair value adjustments for deferred revenue of $1.4 million. The unaudited pro forma supplementary data is provided for informational purposes only and should not be construed to be indicative of the Company’s results of operations had the acquisition been consummated on the date assumed or of the Company’s results of operations for any future date.

HIMSS

On January 15, 2019, the Predecessor Company acquired substantially all of the assets and assumed substantially all of the liabilities of HIMSS for a total purchase price of $29.8 million. The Company recognized

goodwill of $19.1 million, intangible assets of $11.4 million, accounts receivable of $1.3 million, and deferred revenue of $2.0 million, in connection with the acquisition. The acquisition was made to increase the Company’s market footprint. The goodwill recognized consisted largely of the estimated value of the assembled workforce and anticipated growth opportunities. The fair value of acquired intangible assets was determined using certain variations of the income approach and market approach. The estimated fair value of deferred revenue was based upon the applicable guidance and was calculated as the estimated cost for the Company to fulfill the contractual obligations plus a normal profit margin. The Company has included the financial results of HIMSS in the consolidated financial statements from the date of acquisition, which were not material. The transaction costs associated with the acquisition were not material.

HSE

On December 2, 2019, the Company acquired 100% of the issued and outstanding common and preferred stock of HSE for a total purchase price of $6.8 million, consisting of $2.8 million of cash and $4.0 million of equity issued. The Company recognized goodwill of $5.9 million, intangible assets of $1.2 million, deferred tax assets of $0.2 million, accounts receivable of $0.1 million, accounts payable of $0.3 million and deferred revenue of $0.3 million, in connection with the acquisition. The acquisition was made to increase the Company’s market footprint. The goodwill arising from the acquisition consists largely of the estimated value of the assembled workforce and anticipated growth opportunities. The fair value of acquired intangible assets was determined using certain variations of the income approach and market approach. The fair values of current assets and liabilities were based upon their historical costs at the date of acquisition due to their short-term nature. The estimated fair value of deferred revenue was based upon the applicable guidance and was calculated as the estimated cost for the Company to fulfill the contractual obligations plus a normal profit margin. The Company has included the financial results of HSE in the consolidated financial statements from the date of acquisition, which were not material. The transaction costs associated with the acquisition were not material.

Revenue

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Revenue

The Company disaggregates revenue from its arrangements with customers by type of service as it believes these categories best depict how the nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factors.

The following table represents a disaggregation of revenue from arrangements with customers for the nine months ended September 30, 2021 and 2020, respectively:


	Nine Months Ended September 30,
(in thousands)	2021		2020
Platform subscriptions	$	118,545	$	83,814
Professional services		1,296		845

Total revenue	$	119,841	$	84,659

The opening and closing balances of the Company’s receivables, deferred contract costs and contract liabilities from contracts with customers are as follows:


(in thousands)	September 30, 2021		December 31, 2020
Accounts receivable, net	$	27,886	$	33,108
Deferred contract costs		5,359		2,947
Long-term deferred contract costs		9,388		5,952
Deferred revenues		70,179		61,200

Deferred Contract Costs

A summary of the activity impacting the deferred contract costs for the nine months ended September 30, 2021 and the year ended December 31, 2020 is presented below:


(in thousands)	September 30, 2021			December 31, 2020
Balance at beginning of period	$	8,899		$	2,885
Costs amortized		(3,195	)		(1,670	)
Additional amounts deferred		9,043			7,684

Balance at end of period		14,747			8,899

Classified as:
Current		5,359			2,947
Non-current		9,388			5,952

Total deferred contract costs (deferred commissions)	$	14,747		$	8,899

Contract Liabilities

A summary of the activity impacting deferred revenue balances during the nine months ended September 30, 2021 and for the year ended December 31, 2020 is presented below:


(in thousands)	September 30, 2021			December 31, 2020
Balance at beginning of period	$	61,200		$	46,125
Revenue recognized		(119,841	)		(118,317	)
Additional amounts deferred		128,820			133,392

Balance at end of period	$	70,179		$	61,200

Remaining Performance Obligations

ASC 606 introduced the concept of transaction price allocated to the remaining performance obligations of a contract, which is different than unbilled deferred revenue under ASC 605. Transaction price allocated to remaining performance obligations represents contracted revenue that has not yet been recognized, which includes unearned revenue and unbilled amounts that will be recognized as revenue in future periods. Transaction price allocated to remaining performance obligations is influenced by several factors, including seasonality, the timing of renewals, and disparate contract terms. Revenue allocated to remaining performance obligations represents contracted revenue that has not yet been recognized, which includes unearned revenue and backlog. The Company’s backlog represents installment billings for periods beyond the current billing cycle. The majority of the Company’s noncurrent remaining performance obligations will be recognized in the next 13 to 36 months

The remaining performance obligations consisted of the following:


(in thousands)	September 30, 2021		December 31, 2020
Current	$	128,653	$	114,284
Non-current		78,900		58,250

Total	$	207,553	$	172,534

Revenue

The following table represents a disaggregation of revenue from arrangements with customers for the year ended December 31, 2020 (Successor) and the periods from July 16, 2019 to December 31, 2019 (Successor) and January 1, 2019 to July 15, 2019 (Predecessor) (in thousands).


	Successor Company				Predecessor Company
	Year Ended December 31, 2020		Period from July 16, 2019 to December 31, 2019		Period from January 1, 2019 to July 15, 2019
Platform subscriptions	$	117,080	$	39,872	$	45,244
Professional services		1,237		173		214

Total revenue	$	118,317	$	40,045	$	45,458

The opening and closing balances of the Company’s receivables, deferred contract costs and contract liabilities from contracts with customers are as follows (in thousands):


	Successor Company						Predecessor Company
	December 31, 2020		December 31, 2019		July 16, 2019		July 15, 2019		January 1, 2019
Accounts receivables, net	$	33,108	$	25,021	$	12,747	$	12,747	$	15,299
Deferred contract costs		2,947		769		—		1,906		1,346
Long-term deferred contract costs		5,952		2,116		—		3,829		2,973
Deferred revenues	$	61,200	$	46,125	$	32,000	$	38,278	$	31,458

Deferred Contract Costs

A summary of the activity impacting the deferred contract costs during the year ended December 31, 2020 and the periods from July 16, to December 31, 2019 (Successor) and January 1, 2019 to July 15, 2019 (Predecessor) is presented below (in thousands):


	Successor Company						Predecessor Company
	Year Ended December 31, 2020			Period from July 16, 2019 to December 31, 2019			Period from January 1, 2019 to July 15, 2019
Balance at beginning of period	$	2,885		$	5,735		$	—
Adoption of ASC 606		—			—			4,320
Costs amortized		(1,670	)		(189	)		(824	)
Additional amounts deferred		7,684			3,074			2,239
Acquisition-related adjustment		—			(5,735	)

Balance at end of period	$	8,899		$	2,885		$	5,735
Classified as:
Current		2,947			769			—
Non-current		5,952			2,116			—

Total deferred contract costs (deferred commissions)	$	8,899		$	2,885		$	—

Contract Liabilities

A summary of the activity impacting deferred revenue balances during the year ended December 31, 2020 and the periods from July 16, 2019 to December 31, 2019 and January 1, 2019 to July 15, 2019, is presented below (in thousands):


	Successor Company						Predecessor Company
	Year Ended December 31, 2020			Period from July 16, 2019 to December 31, 2019			Period from January 1, 2019 to July 15, 2019
Balance at beginning of period	$	46,125		$	38,278		$	32,187
Adoption of ASC 606		—			—			(729	)
Acquisition adjustment		—			(6,278	)		—
Revenue recognized 1		(118,317	)		(40,045	)		(45,458	)
Additional amounts deferred 1		133,392			54,170			52,278

Balance at end of period	$	61,200		$	46,125		$	38,278

1	Amounts include total revenue deferred and recognized during each respective period.

Remaining Performance Obligations

unbilled amounts that will be recognized as revenue in future periods. Transaction price allocated to remaining performance obligations is influenced

by several factors, including seasonality, the timing of renewals, and disparate contract terms. Revenue allocated to remaining performance obligations represents contracted revenue that has not yet been recognized, which includes unearned revenue and backlog. The Company’s backlog represents installment billings for periods beyond the current billing cycle. The majority of the Company’s noncurrent remaining performance obligations will be recognized in the next 13 to 36 months.

The remaining performance obligations consisted of the following (in thousands):


	Successor Company
	December 31, 2020		December 31, 2019
Current (1)	$	114,284	$	82,291
Noncurrent (1)		58,250		40,475

Total	$	172,534	$	122,766

(1)	The above table has been corrected for certain errors. Previously reported current, noncurrent and total amounts were $121,623, $51,368, and $172,991 respectively for 2020 and $90,237, $32,957, and $123,194 respectively for 2019.

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI http://asc.fasb.org/topic&trid=49130388

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130556-203045

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130550-203045

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130558-203045

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130554-203045

Accounts Receivable, after Allowance for Credit Loss, Current [Abstract]

Accounts Receivable

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Accounts Receivable

5.	Accounts Receivable

Accounts receivable consisted of the following:


(in thousands)	September 30, 2021			December 31, 2020
Accounts receivable	$	28,243		$	33,635
Unbilled receivable		496			329

		28,739			33,964
Less: allowance for doubtful accounts		(853	)		(856	)

Accounts receivable, net	$	27,886		$	33,108

5.	Accounts Receivable

Accounts receivable consisted of the following (in thousands):


	Successor Company
	December 31, 2020			December 31, 2019
Accounts receivable	$	33,635		$	25,220
Unbilled receivable		329			251

	$	33,964		$	25,471
Less: allowance for doubtful accounts		(856	)		(450	)

Accounts receivable, net	$	33,108		$	25,021

Property and Equipment

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Property, Plant and Equipment [Abstract]

Property and Equipment

6.	Property and Equipment

Property and equipment consisted of the following:


(in thousands)	September 30, 2021			December 31, 2020
Computers and software	$	4,455		$	3,141
Furniture and equipment		1,580			1,109
Leasehold improvements		2,766			1,781
Construction and software development in process		—			128

		8,801			6,159
Less: accumulated depreciation and amortization		(4,104	)		(2,911	)

Property and equipment, net	$	4,697		$	3,248

Depreciation and amortization expense associated with property and equipment was $1.2 million and $0.8 million for the nine months ended September 30, 2021 and 2020, respectively.

6.	Property and Equipment

Property and equipment consisted of the following (in thousands):


	Successor Company
	December 31, 2020			December 31, 2019
Computers and software	$	3,141		$	2,042
Furniture and equipment		1,109			777
Leasehold improvements		1,781			1,188
Construction in process		128			310

	$	6,159		$	4,317
Less: accumulated depreciation and amortization		(2,911	)		(1,759	)

Property and equipment, net	$	3,248		$	2,558

Depreciation and amortization expense was $1.2 million for the year ended December 31, 2020 (Successor), and $0.5 million and $0.4 million for the periods from July 16, 2019 through December 31, 2019 (Successor), and January 1, 2019 through July 15, 2019 (Predecessor), respectively.

Goodwill and Intangible Assets

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

7.	Goodwill and Intangible Assets

The carrying amounts of goodwill and intangible assets, as of September 30, 2021 and December 31, 2020, consist of the following:


	September 30, 2021
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Finite-lived intangible assets:
Customer relationships	$	370,030	$	(84,159	)	$	285,871
Developed technologies		51,100		(15,648	)		35,452
Tradenames		35,500		(4,510	)		30,990
Database		42,656		(28,246	)		14,410

Total finite-lived intangible assets		499,286		(132,563	)		366,723
Goodwill		1,261,444		—			1,261,444

Total goodwill and Intangible assets	$	1,760,730	$	(132,563	)	$	1,628,167


	December 31, 2020
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Finite-lived intangible assets:
Customer relationships	$	370,030	$	(58,097	)	$	311,933
Developed technologies		51,100		(10,218	)		40,882
Tradenames		35,500		(2,952	)		32,548
Database		42,656		(17,782	)		24,874

Total finite-lived intangible assets		499,286		(89,049	)		410,237
Goodwill		1,261,444		—			1,261,444

Total goodwill and Intangible assets	$	1,760,730	$	(89,049	)	$	1,671,681

Amortization expense associated with finite-lived intangible assets was $43.5 million for both the nine months ended September 30, 2021 and 2020, of which $15.9 million and $14.3 million was included in cost of revenue for the respective periods.

There were no changes to the carrying amount of goodwill in the nine months ended September 30, 2021.

The Company determined it had one reporting unit. There was no impairment of goodwill in the nine months ended September 30, 2021 or 2020.

7.	Goodwill and Intangible Assets

The carrying amounts of goodwill and intangible assets, as of December 31, 2020 and 2019, consist of the following (in thousands):


	December 31, 2020 (Successor)
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Finite-lived intangible assets:
Customer relationships	$	370,030	$	(58,097	)	$	311,933
Developed technologies		51,100		(10,218	)		40,882
Tradenames		35,500		(2,952	)		32,548
Data		42,656		(17,782	)		24,874

Total finite-lived intangible assets		499,286		(89,049	)		410,237
Goodwill		1,261,444		—			1,261,444

Total goodwill and Intangible assets	$	1,760,730	$	(89,049	)	$	1,671,681


	December 31, 2019 (Successor)
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Finite-lived intangible assets:
Customer relationships	$	358,130	$	(21,075	)	$	337,055
Developed technologies		48,500		(3,206	)		45,294
Tradenames		34,100		(928	)		33,172
Data		36,268		(5,408	)		30,860

Total finite-lived intangible assets		476,998		(30,617	)		446,381
Goodwill		1,233,173		—			1,233,173

Total goodwill and Intangible assets	$	1,710,171	$	(30,617	)	$	1,679,554

Amortization expense associated with finite-lived intangible assets was $58.4 million for the year ended December 31, 2020 (Successor), of which $19.4 million was included in cost of revenue for the said period. Amortization expense associated with finite-lived intangible assets was $30.6 million and $2.0 million for the periods from July 16, 2019 through December 31, 2019 (Successor), and January 1, 2019 through July 15, 2019 (Predecessor), respectively.

Estimated total intangible amortization expense during the next five years and thereafter is as follows (in thousands):


2021	$	58,143
2022		53,653
2023		45,709
2024		42,485
2025		38,296
Thereafter		171,951

Total	$	410,237

The changes in the carrying amount of goodwill for the year ended December 31, 2020 (Successor) and the periods from July 16, 2019 to December 31, 2019 (Successor) and January 1, 2019 through July 15, 2019 (Predecessor) were as follows (in thousands):


Balance at January 1, 2019 (Predecessor)	$	63,623
HIMSS acquisition (Note 3)		19,145

Balance at July 15, 2019 (Predecessor)		82,768
Definitive Holdco Acquisition (Note 3)	$	1,144,494

Balance at July 16, 2019 (Successor)	$	1,227,262
HSE acquisition (Note 3)		5,911

Balance at December 31, 2019 (Successor)		1,233,173
Monocl acquisition (Note 3)		28,271

Balance at December 31, 2020 (Successor)	$	1,261,444

The Company determined it had one reporting unit. The Company performed its annual impairment assessment in the fourth quarter of 2020 and 2019 and determined there was no impairment in 2020 or 2019.

Long-term debt

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Debt Disclosure [Abstract]

Long-Term Debt

8.	Long-Term Debt

Long-term debt consisted of the following as of September 30, 2021 and December 31, 2020, respectively:


	September 30, 2021
(in thousands)	Principal		Unamortized debt issuance costs / financing costs			Total debt, net
2021 Term Loan	$	275,000	$	(2,737	)	$	272,263
Less: current portion of long-term debt							6,875

Long-term debt						$	265,388


	December 31, 2020
(in thousands)	Principal		Unamortized debt issuance costs / financing costs			Total debt, net
2019 Term Loan	$	444,375	$	(10,865	)	$	433,510
Paid in kind interest on 2019 Term Loan		10,412		—			10,412
2019 Delayed Draw Term Loan		17,955		—			17,955

Total debt	$	472,742	$	(10,865	)	$	461,877

Less: current portion of long-term debt							4,680

Long-term debt						$	457,197

On September 17, 2021, the Company

repaid the outstanding principal balances of the 2019 Term Loan, as described below, of $442.1 million, paid in kind interest, as described below, of $10.4 million, 2019 Delayed Draw Term Loan, as described below, of $17.9 million and related accrued interest payable of $4.2 million

totaling $474.6 million using the proceeds from the 2021 Term Loan, as described below, of $275.0 million and net proceeds of the IPO of $199.6 million

, inclusive of accrued interest expense.

The effective interest

rate for

these loans under the 2019 Credit Agreement, as described below, was 6.25% as of the repayment date. The Company recognized a $9.9 million loss on the extinguishment of debt relating to the write off of unamortized debt issuance costs.

2021 Credit Agreement

On September 17, 2021, Definitive Healthcare Holdings, LLC, a Delaware limited liability company (“DH Holdings”), an indirect subsidiary of

Definitive Healthcare Corp.,

entered into a credit agreement (the “2021 Credit Agreement”) with Bank of

America

, N.A., as administrative agent, the other lenders party thereto and the other parties specified therein. The 2021 Credit Agreement provides for (i) a $275.0 million term loan A facility (the “2021 Term Loan”) and (ii) a $75.0 million revolving credit facility (the “2021 Revolving Line of Credit” and, together with the 2021 Term Loan, collectively, the “2021 Credit Facilities”), the proceeds of which were used to repay a portion of the indebtedness outstanding under the 2019 Credit Agreement (as described below). Both the 2021 Term Loan and the 2021 Revolving Line of Credit mature on September 17, 2026. The 2021 Credit Facilities include customary affirmative, negative and financial covenants. The 2021 Credit Facilities are guaranteed by all of DH Holdings’s wholly-owned domestic restricted subsidiaries and AIDH Buyer, LLC, a Delaware limited liability company and the direct parent company of DH Holdings, in each case, subject to customary exceptions, and are secured by a lien on substantially all of the assets of DH Holdings and the guarantors, including a pledge of the equity of DH Holdings, in each case, subject to customary exceptions.

The 2021 Term Loan is subject to annual amortization of principal, payable in equal quarterly installments on the last day of each fiscal quarter, commencing on December 31, 2021 (the “Initial Amortization Date”), equal to approximately 2.5% per annum of the principal amount of the term loans in the first year and second year after the Initial Amortization Date and approximately 5.0% per annum of the principal amount of the term loans in the third year, fourth year and fifth year after the Initial Amortization Date. A balloon payment of approximately $220.0 million will be due at the maturity of the 2021 Term Loan. There was $275.0 million outstanding on the 2021 Term Loan at September 30, 2021.

DH Holdings is required to pay the lenders under the 2021 Credit Agreement an unused commitment fee of between 0.25% and 0.30% per annum on the undrawn commitments under the 2021 Revolving Line of Credit, depending on the total net leverage ratio, quarterly in arrears. The expense is included in interest expense in the statements of operations. There was no outstanding balance on the 2021 Revolving Line of Credit at September 30, 2021.

For both the 2021 Term Loan and 2021 Revolving Line of Credit, DH Holdings may elect from several interest rate options based on the LIBO Rate or the Base Rate plus an applicable margin. The applicable margin

will be based on the total leverage ratio beginning in the fiscal year ended December 31, 2022. As of September 30, 2021, the effective interest rate was 2.37%.

In connection with the 2021 Credit Agreement, the Company capitalized financing costs totaling $3.5 million, $2.8 million for the 2021 Term Loan facility and $0.8 million for the 2021 Revolving Line of Credit.

The financing costs associated with the 2021 Term Loan facility are recorded as a contra-debt balance in Term loan, net of current portion in the condensed consolidated balance sheets and are amortized over the remaining life of the loan using the effective interest method. The financing costs associated with the 2021 Revolving Line of Credit are recorded in Other assets in the condensed consolidated balance sheet are amortized over the life of the arrangement.

2019 Credit Agreement

On July 16, 2019, DH Holdings entered into a credit agreement (the “2019 Credit Agreement”) by and among DH Holdings, the lenders party thereto and Owl Rock Capital Corporation, as administrative agent. Under the 2019 Credit Agreement, a $450.0 million term loan facility (the “2019 Term Loan”), a $100.0 million delayed draw term

loan facility (the “2019 Delayed Draw Term Loan”) and a $25.0 million revolving line of credit (the “2019 Revolving Line of Credit”) were made available to DH Holdings. The 2019 Credit Agreement included customary affirmative, negative and financial covenants. All facilities under the 2019 Credit Agreement were guaranteed, by DH Holdings’s wholly-owned domestic restricted subsidiary, Definitive Healthcare LLC, a Massachusetts limited liability company and AIDH Buyer, LLC, a Delaware limited liability company and the direct parent company of DH Holdings, and were secured by a lien on substantially all of the assets of DH Holdings and the guarantors, including a pledge of the equity of DH Holdings, in each case, subject to customary exceptions.

The 2019 Term Loan had a maturity date of July 16, 2026 and was issued with an original issue discount of $11.3 million and amortized to interest expense over the term of the agreement using the effective interest method. Interest on a portion of the loan ($100.0 million of the $450.0 million principal amount) was treated as paid in kind and added to the principal balance to be paid off at maturity. DH Holdings could elect from several interest rate options based on the

Eurodollar

Rate or the Base Rate plus an applicable margin. Quarterly principal payments of $1.1 million began in December 2019 and were required through the 2019 Term Loan’s maturity, at which time a balloon payment of $419.6 million, excluding the paid in kind portion, was due. The paid in kind interest was payable on the maturity date. 2019 Term Loan was subject to excess cash flow payments annually beginning in the fiscal year ended December 31, 2020 based on the total leverage ratio. There was $454.8 million outstanding on the 2019 Term Loan at December 31, 2020, including $10.4 million of paid in kind interest. The effective interest rate for the 2019 Term Loan and paid in kind effective interest was 6.50% at December 31, 2020.

The 2019 Delayed Draw Term Loan had a maturity of July 16, 2026. The 2019 Delayed Draw Term Loan was issued with an original issue discount of $1.3 million. DH Holdings could draw down funds under the 2019 Delayed Draw Term Loan until July 16, 2021. As of December 31, 2020, DH Holdings drew $18.0 million on the 2019 Delayed Draw Term Loan, in connection with the Monocl acquisition. DH Holdings could elect from several interest rate options based on the

Eurodollar

Rate or the Base Rate plus an applicable margin. Quarterly in arrears through July 16, 2021, DH Holdings was required to pay the bank a fee equal to 1% per annum of the amount of the 2019 Delayed Draw Term Loan unused capacity. Quarterly principal payments began in December 2020 in quarterly installments equal to 0.25% of the aggregate amount outstanding on the 2019 Delayed Draw Term Loan, and are required through the note’s maturity, at which time a payment of the entire outstanding principal balance will be due. The outstanding balance on the 2019 Delayed Draw Term Loan was $18.0 million at December 31, 2020. The effective interest rate for the 2019 Delayed Draw Term Loan was 6.50% at December 31, 2020.

The 2019 Revolving Line of Credit had a maturity of July 16, 2024.

DH Holdings could elect from several interest rate options based on the Eurodollar Rate or the Base Rate plus an applicable margin. During 2020, $

25.0

million was drawn on the 2019 Revolving Line of Credit and subsequently paid back in 2020. There was

outstanding balance on the 2019 Revolving Line of Credit at December 31, 2020.

draws on the 2019 Revolving Line of Credit were made in 2021 and the 2019 Credit Agreement was terminated on

September 17, 2021

In connection with the 2019 Credit Agreement, the Company originally capitalized financing costs totaling $14.1 million, $13.4 million for the 2019 Term Loan and $0.7 million for the 2019 Revolving Line of Credit. In October 2020, the Company capitalized an additional $0.2 million in financing costs associated with the 2019 Delayed Draw Term Loan borrowing. These financing costs were recorded as deferred financing costs in the condensed consolidated balance sheets and amortized over the remaining lives of the respective borrowing using the effective interest method. The Company expensed capitalized financing costs for the 2019 Credit Agreement through interest expense of $1.5 million for the nine months ended September 30, 2021 and 2020, respectively. At December 31, 2020, the unamortized financing costs for the 2019 Revolving Line of Credit of $0.5 million was classified in other assets in the consolidated balance sheet.

8.	Long-Term Debt

Long-term debt consisted of the following as of December 31, 2020 and 2019, respectively (in thousands):


	December 31, 2020 (Successor)
	Principal		Unamortized debt issuance costs / financing costs			Total debt, net
2019 Term Note	$	444,375	$	(10,865	)	$	433,510
Paid in kind interest on 2019 Term Note		10,412					10,412
2019 Delayed Draw Term Note		17,955					17,955

Total debt	$	472,742	$	(10,865	)		461,877

Less: current portion of long-term debt							4,680

Long-term debt						$	457,197


	December 31, 2019 (Successor)
	Principal		Unamortized debt issuance costs / financing costs			Total debt, net
2019 Term Note	$	448,875	$	(12,567	)	$	436,308
Paid in kind interest on 2019 Term Note		3,041					3,041

Total debt	$	451,916	$	(12,567	)		439,349

Less: current portion of long-term debt							4,500

Long-term debt						$	434,849

Term Loan Payable

On July 16, 2019, the Company entered into a term loan facility, delayed draw term loan, and revolving line of credit (collectively, “2019 Loan Agreement”). The term loan facility (“2019 Term Note”) is for $450.0 million, which has a maturity date of July 16, 2026. The 2019 Term Note was issued with an original issue discount of $11.3 million. This discount is amortized to interest expense over the term of the agreement

using the effective interest method. Interest on a portion of the loan ($100.0 million of the $450.0 million principal amount) is treated as paid in kind and added to the principal balance to be paid off at maturity. The Company can elect from several interest rate options based on the Eurodollar Rate or the Base Rate plus an applicable margin (As of December 31, 2020, the interest rate was 6.5% on both the $350.0 million loan and the $100.0 million paid in kind loan. At December 31, 2019, the interest rate was 8.404% on the $100.0 million paid in kind loan and 7.404% on the $350.0 million loan). Quarterly principal payments of $1.1 million began in December 2019 and are required through the note’s maturity, at which time a balloon payment of $419.6 million, excluding the paid in kind portion, will be due. The paid in kind interest is payable on the maturity date. The note is subject to certain financial covenants and is collateralized by first security interests on the Company’s assets. The loan is subject to excess cash flow payments annually beginning in the fiscal year ended December 31, 2020 based on the total leverage ratio. There was $454.8 million and $451.9 million outstanding on the 2019 Term Note at December 31, 2020 and 2019, respectively, including $10.4 million and $3.0 million of paid in kind interest, respectively.

Delayed Draw Term Loan Payable

On July 16, 2019, as part of the 2019 Loan Agreement, the Company entered into a delayed draw term loan (“2019 Delayed Draw Term Note”) of $100.0 million which has a maturity of July 16, 2026. The 2019 Delayed Draw Term Note was issued with an original issue discount of $1.3 million. The Company may draw down funds under the 2019 Delayed Draw Term Note until July 16, 2021. As of December 31, 2020, the Company drew $18.0 million on the 2019 Delayed Draw Term Note, in connection with the Monocl acquisition. The Company can elect from several interest rate options based on the Eurodollar Rate or the Base Rate plus an applicable margin. Quarterly in arrears through July 16, 2021, the Company is required to pay the bank a fee equal to 1% per annum of the amount of the 2019 Delayed Draw Term Note unused capacity. Quarterly principal payments begin in September 2021 in quarterly installments equal to 0.25% of the aggregate amount outstanding on the 2019 Delayed Draw Term Note, and are required through the note’s maturity, at which time a payment of the entire outstanding principal balance will be due. The note is subject to certain financial covenants and is collateralized by first security interests on the Company’s assets. The outstanding balance on the 2019 Delayed Draw Term Note was $18.0 million at December 31, 2020. There was no outstanding balance at December 31, 2019.

Revolving Line of Credit

On July 16, 2019, as part of the 2019 Loan Agreement, the Company entered into a revolving line of credit (“2019 Revolving Line of Credit”) of $25.0 million which has a maturity of July 16, 2024. The Company can elect from several interest rate options based on the Eurodollar Rate or the Base Rate plus an applicable margin. Quarterly in arrears, the Company is required to pay the bank a fee equal to 0.5% of the amount of the 2019 Revolving Line of Credit’s unused capacity. The expense is included in interest expense in the statement of income (loss). The 2019 Revolving Line of Credit is subject to certain financial covenants. During 2020, $25.0 million was drawn on the on the Revolving Line of Credit and subsequently paid back. There was no outstanding balance on the 2019 Revolving Line of Credit at December 31, 2020 or 2019.

Line of Credit

On January 8, 2019, in conjunction with the acquisition of HIMSS, the Company entered into a revolving line of credit (“2019 Revolver”) of $15.0 million with a maturity date of January 8, 2021. Loans under the 2019 Revolver were subject to several interest rate options based on the Eurodollar Rate or the Base Rate plus an applicable margin and were collateralized by a first security interest in the Company’s assets. Quarterly in arrears, the Company was required to pay the bank a fee equal to 0.3% of the amount of the 2019 Revolver’s unused capacity. The expense was included in interest expense on the consolidated statement of operations. The 2019 Revolver was subject to certain financial covenants. The Company drew down $13.0 million to fund the acquisition of HIMSS. During 2019, the 2019 Revolver was paid in full with cash on hand and terminated.

Financing Costs

Capitalized financing costs represent costs incurred by the Company to obtain financing and are amortized over the term of the applicable loan using the effective interest method.

During the year ended December 31, 2019, the Company incurred $1.6 million and $12.5 million of financing costs and original issue discounts, respectively. The amount is amortized to interest expense through the maturity dates of the underlying debt. The original issue discount is treated as a debt discount. The Company expensed capitalized financing costs and the debt discount through interest expense of $0.9 million during the period from July 16, 2019 through December 31, 2019 (Successor). No capitalized financing costs were expensed during the period from January 1, 2019 through July 15, 2019. As of December 31, 2020 and 2019, the unamortized financing costs for the 2019 Revolving Line of Credit of $0.5 million and $0.6 million, respectively, was classified in other assets in the consolidated balance sheet.

Future principal payments as of December 31, 2020 are as follows (in thousands):


2021	$	4,680
2022		4,680
2023		4,680
2024		4,680
2025		4,680
Thereafter		449,342

	$	472,742

Fair Value Measurements

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Fair Value Disclosures [Abstract]

Fair Value Measurements

9.	Fair Value Measurements

ASC 820,

Fair Value Measurements and Disclosures

(“ASC 820”), defines fair value as the price that would be received for an asset, or paid to transfer a liability, in an orderly transaction between market participants on the measurement date, and establishes a three-level fair value hierarchy that prioritizes the inputs used to measure fair value.

The Company’s financial assets and liabilities subject to the three-level fair value hierarchy consist principally of cash and equivalents, accounts receivable, accounts payable, long-term and short-term debt and contingent consideration payable. The estimated fair value of cash and equivalents, accounts receivable and accounts payable approximates their carrying value due to due to their short maturities (less than 12 months).

The Company’s short- and long-term debt are recorded at their carrying values in the consolidated balance sheets, which may differ from their respective fair values. The carrying values and estimated fair values of the Company’s short- and long-term debt approximate their carrying values as of December 31, 2020, and 2019, based on interest rates currently available to the Company for similar borrowings.

The contingent consideration, which resulted from the earn-outs associated with the Monocl acquisition, is measured at fair value on a recurring basis. The fair value was estimated using a variation of the income approach, known as the real options method, where ARR was simulated in a risk-neutral framework using Geometric Brownian Motion, a well-accepted model of stock price behavior that is used in option pricing models such as the Black-Scholes option pricing model. The risk-neutral expected (probability-weighted) earnout payments were then calculated based on simulation results. An increase to a probability of achievement would result in a higher fair value measurement. At September 30, 2021 and December 31, 2020, the fair value of the contingent consideration was estimated at $6.9 million and $5.2 million, respectively. The current portion of the

earn-out

liability ($6.9 million and $1.5 million at September 30, 2021 and December 31, 2020, respectively) is included in accrued expenses and other current liabilities on the consolidated balance sheets, and the

non-current

portion (nil at September 30, 2021 and $3.7 million at December 31, 2020) in other long-term liabilities. A payment of $1.5 million was made in April 2021.

Earn-out

liabilities are classified within Level 3 in the fair value hierarchy because the methodology used to develop the estimated fair value includes significant unobservable inputs reflecting management’s own assumptions. The valuation techniques and significant unobservable inputs used in recurring Level 3 fair value measurements were as follows as of September 30, 2021 and December 31, 2020:

(in thousands)

Fair Value

Valuation Technique

Unobservable Inputs

Discount Rate

Earn-out

liabilities

6,905

Income Approach (Real Option Method)

Discount rate

2.38

The table below presents a reconciliation of earnout liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3):


(in thousands)	September 30, 2021			December 31, 2020
Balance at beginning of period	$	5,236		$	—
Additions		—			2,600
Net change in fair value and other adjustments		3,169			2,636
Payments		(1,500	)		—

Balance at end of period	$	6,905		$	5,236

Adjustments to the

earn-out

liabilities in periods subsequent to the completion of acquisitions were made using scenario-based modeling to estimate the probability of achievement and are reflected within transaction expenses in the condensed consolidated statements of operations. As of September 30, 2021, the Company had

the potential to make a maximum of $10.0 million and a minimum of $0.0 million (undiscounted) in

earn-out

payments. Assuming the achievement of the applicable performance criteria, these

earn-out

payments will be made in April 2022.

Certain assets and liabilities, including property, plant and equipment, goodwill and other intangible assets, are measured at fair value on a

non-recurring

basis. These assets are remeasured when the derived fair value is below the carrying value on the Company’s consolidated balance sheet. For these assets, the Company does not periodically adjust carrying value to fair value except in the event of impairment. When impairment has occurred, the Company measures the required charges and adjusts the carrying value as discussed in Note 2.

Summary of Significant Accounting Policies

of the Notes to the Consolidated Financial Statements in the Company’s IPO Prospectus.

9.	Fair Value Measurements

AC 820, Fair Value Measurements and Disclosures (“ASC 820”), defines fair value as the price that would be received for an asset, or paid to transfer a liability, in an orderly transaction between market participants on the measurement date, and establishes a three-level fair value hierarchy that prioritizes the inputs used to measure fair value.

The contingent consideration, which resulted from the earn-outs associated with the Monocl acquisition, is measured at fair value on a recurring basis. The current portion of the

earn-out

liability is included in accrued expenses and other current liabilities on the consolidated balance sheet, and the

non-current

portion in other long-term liabilities.

Earn-out

liabilities are classified within Level 3 in the fair value hierarchy because the methodology used to develop the estimated fair value includes significant unobservable inputs reflecting management’s own assumptions. The fair value of the contingent consideration was estimated using a variation of the income approach, known as the real options method, where ARR was simulated in a risk-neutral framework using Geometric Brownian Motion, a well-accepted model of stock price behavior that is used in option pricing models such as the Black-Scholes option pricing model. The risk-neutral expected (probability-weighted) earnout payments were then calculated based on simulation results. An increase to a probability of

achievement would result in a higher fair value measurement. The fair value of the contingent consideration was $5.2 million as of December 31, 2020, with $1.5 million current and $3.7 million

non-current.

Adjustments to the

earn-out

liabilities in periods subsequent to the completion of acquisitions were made using scenario-based modeling to estimate the probability of achievement and are reflected within Transaction expenses in the consolidated statements of income (loss). As of December 31, 2020, the Company had the potential to make a maximum of $15.0 million and a minimum of $0.0 million (undiscounted) in

earn-out

payments. Assuming the achievement of the applicable performance criteria, these

earn-out

payments will be made over the next 2 years.

The table below presents a reconciliation of earnout liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) (in thousands):


	Successor Company				Predecessor Company
	Year ended December 31, 2020		Period from July 16, 2019 to December 31, 2019		Period from January 1, 2019 to July 15, 2019
Balance at beginning of period	$	—	$	—	$	—
Additions		2,600		—		—
Net change in fair value and other adjustments		2,636		—		—
Payments		—		—		—

Balance at end of period	$	5,236	$	—	$	—

The valuation techniques and significant unobservable inputs used in recurring Level 3 fair value measurements were as follows as of December 31, 2020:

Fair Value

Valuation Technique

Unobservable Inputs

Discount Rate

Earn-out

liabilities

5,236

Income Approach (Real Option Method)

Discount rate

6.5

Certain assets and liabilities, including property, plant and equipment, goodwill and other intangible assets, are measured at fair value on a

non-recurring

Summary of Significant Accounting Policies

. For discussion about the impairment testing of assets not measured at fair value on a recurring basis see Note 7.

Goodwill and Intangible Assets

for additional details.

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

Accrued Expenses and Other Current Liabilities

Accrued Expenses and Other Current Liabilities

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Payables and Accruals [Abstract]

10.	Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:


(in thousands)	September 30, 2021		December 31, 2020
Payroll and payroll-related	$	7,246	$	7,792
Accrued interest		233		5,365
Contingent consideration, current		6,905		1,500
Sales taxes		1,146		649
Deferred rent		112		583
Other		3,654		1,432

Accrued expenses and other current liabilities	$	19,296	$	17,321

10.	Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following (in thousands):


	Successor Company
	December 31, 2020		December 31, 2019
Payroll and payroll-related	$	7,792	$	3,879
Accrued interest		5,365		4,215
Contingent consideration, current		1,500		—
Sales taxes		649		1,916
Deferred rent		583		17
Other		1,432		321

Accrued expenses and other current liabilities	$	17,321	$	10,348

Commitments and Contingencies

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

11.	Commitments and Contingencies

The Company leases office facili

ies in Massachusetts, Vermont and Sweden, the terms of which expire at various times through the year 2030. In 2019, the Company signed a new office lease agreement which commenced in 2020 and will continue through 2027.

Total rent expense for the nine months ended September 30, 2021 was $2.1 million, respectively, and rent expense for the nine months ended September 30, 2020 was $1.4 million, respectively. Rent expense was classified in selling, general, and administrative expense in the condensed consolidated statements of operations for all periods presented.

11.	Commitments and Contingencies

The Company leases office facilities in Massachusetts, Vermont and Sweden, the terms of which expire at various times through the year 2030.

Beginning in 2017, the Predecessor subleased one of its Massachusetts offices. The sublease term expired in August 2019 and the Company recorded sublease rental income of $0.1 million for the year ended December 31, 2019. The income was recorded as an offset to rent expense in the consolidated statements of income (loss). There was no income from any sublease agreements recorded in 2020.

Total rent expense was $1.8 million for the year ended December 31, 2020 (Successor) and $0.6 million and $0.5 million for the periods from July 16, 2019 through December 31, 2019 (Successor) and from January 1, 2019 through July 15, 2019 (Predecessor), respectively, and was classified in selling, general, and administrative expense in the consolidated statements of income (loss). The Company signed a new office lease agreement in 2019 which commenced in 2020 and will continue through 2027. The table below is inclusive of the new lease.

Minimum future rental payments are expected to be as follows for each of the years ending December 31 (in thousands):


2021	$	3,035
2022		2,673
2023		2,043
2024		2,338
2025		2,193
Thereafter		4,790

	$	17,072

The Company also enters into other purchase obligations in the normal course of doing business. The estimated annual minimum purchase commitments under those agreements were as follows for each of the years ending December 31 (in thousands):


2021	$	5,396
2022		5,257
2023		5,098
2024		3,925
2025		2,370
Thereafter		—

	$	22,046

Members' capital

12 Months Ended

Dec. 31, 2020

Equity [Abstract]

Members' capital

12.	Members’ capital

Successor

As described in Note 1.

Overview

and Note 3. Business

Combinations

, the Company was formed by Advent for the purpose of acquiring Definitive Holdco.

Upon formation of the Company, two classes of units were established: Class A Units (“Class A Units”) and Class B Units (“Class B Units”), collectively the Units.

On July 16, 2019, 100% of the issued and outstanding Legacy Common Units of Definitive Holdco were acquired by AIDH Buyer, an affiliated legal entity of Advent and a wholly owned subsidiary of the Company.

As part of the Definitive Holdco Acquisition, the Company issued 127,725,743 Class A Units at $10 per unit for total contributed capital of $1,267.3 million.

Additionally, the outstanding units of the Legacy Class B Series B, Series C, Series D, and Series E were sold to AIDH Buyer and the holders received a combination of cash and equity in the Company.

In conjunction with the acquisition of Definitive Holdco by the Company in July 2019, the Company paid $6.9 million to the selling shareholders in July 2020 which had been recorded as a members’ distribution payable on the balance sheet at December 31, 2019 (see Note 3.

Business Combinations

In 2019, the Company contributed $4.0 million worth of its Class A Units to partially fund the acquisition of HSE that occurred in December 2019 (see Note 3.

Business Combinations

In 2020, the Company contributed $25.4 million worth of its Class A units to partially fund the acquisition of Monocl that occurred in October 2020 (see Note 3.

Business Combinations

). The Company also received an additional $6.4 million for buy in of Class A Units from of a number of its members.

There was 130,245,990 and 127,125,435 issued and outstanding Class A units as of December 31, 2020 and December 31, 2019, respectively.

Predecessor

Upon formation of the Predecessor Company, two classes of common units were established; Class A Common Units (“Legacy Class A Units”) and Class B Common Units (“Legacy Class B Units”), collectively the Legacy Common Units.

In December 2016, the Predecessor amended and restated the Limited Liability Company Agreement of Definitive Holdco, resulting in the formation of DHC Class B Holdings, LLC (“DHCB”). Per the terms of Limited Liability Company Agreement of DHC Class B Holdings, LLC (the “DHCB Holdings Agreement”), DHCB’s units represented an indirect interest in Class B Units of the Company. Upon formation of DHCB all previously issued Class B Units were exchanged for DHCB Series B Units, and the previously authorized Class B Units were transferred to DHCB. The DHCB Holdings Agreement allowed for the creation a series of units (the “Incentive Equity Pool”), upon approval by the Management Board, up to the cumulative authorized amount of 407,750.

The rights and obligations of the holders of the Common Units were governed by the Amended and Restated Limited Liability Company Agreement of Definitive Healthcare Holdings, LLC, (the “Agreement”). The Agreement provided for the limitation of the holders liability to be that of their respective capital contributions as defined in the Agreement.

Per the Agreement, all unit holders were entitled to receive the following distributions from the Company: tax distributions, distributions on liquidation or sale of the Company, or distributions prior to liquidation or sale of the Company. Per the terms of the Agreement tax distributions should be made for the amount of income allocated to the Member multiplied by the applicable federal income tax rate.

As of December 31, 2018, 7,750,000 Legacy Class A Units were authorized, issued, and outstanding and 407,750 Legacy Class B Units (Series A though E) were authorized to be issued to employees and consultants as incentive units, of which 88,716 units were outstanding

As of July 15, 2019, there were 7,750,000 and 268,853 of issued and outstanding Legacy Class A and Legacy Class B Units, respectively. On July 16, 2019, 100% of the Legacy Class A Units were acquired by AIDH Buyer, in conjunction with the sale of the Legacy Class A Units, the outstanding units of Series B, C, D, and E were sold and the holders received a combination of cash and equity in the Company.

Equity-based Compensation

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Share-based Payment Arrangement [Abstract]

Equity-based Compensation

13.	Equity-Based Compensation

Equity-based compensation expense is allocated to all departments in the accompanying condensed consolidated statements of operations based on the recipients of the compensation

A summary of the expense by line item in the consolidated statements of operations for the nine months ended September 30, 2021 and 2020, respectively, is provided in the following table.


	Nine Months Ended September 30,
(in thousands)	2021		2020

Cost of revenue	$	79	$	46
Sales and marketing		567		380
Product development		341		267
General and administrative		3,351		637

Total compensation expense	$	4,338	$	1,330

2021 Equity Incentive Plan

As of September 15, 2021, in connection with its IPO, the Company adopted the Definitive Healthcare Corp. 2021 Equity Incentive Plan (the “2021 Plan”). The types of grants available under the 2021 Plan include stock options (both incentive and

non-qualified),

stock appreciation rights (“SARs”), restricted stock awards (“RSAs”), restricted stock units (“RSUs”), and stock-based awards.

The aggregate number of shares of Class A Common Stock available for grant under the 2021 Plan was 8,989,039 shares at September 30, 2021. As of September 30, 2021, 1,464,681 RSUs have been granted under the 2021 Plan. The outstanding RSUs have time-based and/or performance-based vesting criteria. Outstanding time-based RSUs generally vest partially on the one year anniversary of each grant and quarterly over the subsequent

two-

or three-year period. Outstanding performance-based RSUs vest annually over three years upon the achievement of certain performance targets and continued service, the measurement period for which begins January 1, 2022. As such, no stock-based compensation expense associated with performance-based RSUs was recorded in the third quarter of 2021.

The following table summarizes the Company’s unvested time-based and performance-based RSU activity for the nine months ended September 30, 2021.


	Time-Based					Performance-Based
	Restricted Stock Units			Weighted Average Grant Date Fair Value		Restricted Stock Units		Weighted Average Grant Date Fair Value
Unvested at beginning of period		—		$	—		—	$	—
Granted		1,300,328		$	27.00		164,353	$	27.00
Vested		—		$	—		—	$	—
Forfeited		(2,656	)	$	27.00		—	$	—

Unvested at end of period		1,297,672		$	27.00		164,353	$	27.00

The Company recognized $0.4 million in stock-based compensation expense associated with RSUs granted in 2021. Total unrecognized expense was estimated to be $39.1 million for both time-based vesting and performance-based vesting awards at September 30, 2021, to be recognized over a weighted-average period of approximately 4.0 years.

2019 Equity Incentive Plan

In July 2019, the Company and its Board of Members approved the 2019 Equity Incentive Plan (“the 2019 Plan”) under which the Parent Company had reserved approximately 8,088,877 Class B Units (the “2019 Incentive Equity Pool”). The 2019 Incentive Equity Pool was utilized for the issuance of units to employees, consultants, directors, managers, or others providing services to the Company pursuant to Board of Members approval. These interests were considered profit interests, which, in general, entitle the holder of the unit to a pro rata share of the increase in value of the unit over the base value determined at the award date and were subject to such vesting and other restrictions as the Board of Members deemed appropriate. Any units forfeited or repurchased were available for future grants under the 2019 Incentive Equity Pool.

The units had time-based and/or performance-based vesting criteria. Generally, the time-based units vested in equal annual installments over a four-year period on the anniversary date of the vest date. The performance-based units vested based on the achievement of specified returns on investments upon a change of control or qualifying event, as defined in the agreement. In connection with the IPO, performance-based forfeiture conditions for unvested units were waived through a modification of the awards and, after the IPO, all such unvested awards became subjected to time-vesting over three years from the IPO Date. As a result of the modification of the terms of such performance-vesting awards, we recorded compensation expense based on the fair value of the units that otherwise would have been forfeited, using the IPO price of $27.00 per share. The total compensation expense related to modification was $9.0 million, which will be recognized over the respective remaining service periods. The Company recorded $0.2 million in stock-based compensation expense associated with these performance-vesting units in the third quarter of 2021.

In connection with the retirement of an executive officer, the Company accelerated the vesting of 24,049 unvested time-vesting Class B units and 48,099 of his unvested performance-vesting Class B units.

The Company

recorded incremental compensation expense of approximately $1.9 million during the third quarter 2021. Upon separation, the remaining 72,149 in

Class B units were forfeited.

Effective September 15, 2021, the Company will no longer grant any awards under the 2019 Plan, though previously granted awards under the 2019 Plan remain outstanding and governed by the 2019 Plan, except for the modifications discussed above.

For awards granted in the 2019 Plan, the Company assessed the fair value of the awards as of the grant date. The fair value of the units was estimated using a

two-step

process. First, the Company’s enterprise value was established using generally accepted valuation methodologies, including discounted cash flow analysis, guideline comparable public company analysis, and comparable transaction method. Second, the enterprise value was allocated among the securities that comprise the capital structure of the Company using an option-pricing method based on the Black-Scholes model. For performance-based units, the Company used a Monte Carlo simulation analysis, which captures the impact of the performance vesting conditions to value the performance-based units. The use of the Black-Scholes model and the Monte Carlo simulation requires the Company to make estimates and assumptions, such as expected volatility, expected term and expected risk-free interest rate. Significant assumptions used to estimate the fair value of units were as follows, which were the same between service-based and performance-based shares:


	September 15, 2021	December 31, 2020
Expected option term	0.30 — 0.70 years	5.5 years
Risk-free rate of return	0.01% — 0.06%	1.73%
Applied volatility	30%	35%

In connection with the Reorganization Transactions and the IPO, unvested Class B Units held directly by employees of the Company or indirectly through Definitive OpCo, were exchanged for unvested Definitive OpCo units based on their respective participation thresholds and the IPO price of $27.00 per share. The time-based units issued upon the exchange remain subject to the same service vesting requirements as the original Class B Units. The pre-IPO performance-based units were exchanged for time-based units and will vest over a three-year period beginning on the date of the IPO. The following table summarizes the Company’s unvested time-based and performance-based unit activity from January 1, 2021 through September 30, 2021.


	Time-Based					Performance-Based
	Non-Vested Units			Weighted Average Grant Date Fair Value		Non-Vested Units			Weighted Average Grant Date Fair Value
Non-vested at December 31, 2020		1,404,720		$	3.65		1,840,423		$	2.35
Granted		1,477,323			1.41		1,177,308			0.41
Vested		(437,731	)		3.64		—			—
Forfeited		(13,770	)		3.65		(18,361	)		2.35

Non-vested at September 15, 2021		2,430,542		$	2.29		2,999,370		$	1.59

Effect of Reorganization Transactions and IPO		(1,165,679	)		2.08		(1,318,171	)		1.39
Performance-based units exchanged for time-based units		1,681,199			1.74		(1,681,199	)		1.74
Vested		(74,049	)		2.75		—			—
Forfeited		(72,149	)		2.78		—			—

Non-vested at September 30, 2021		2,799,864		$	2.02		—		$	—

In connection with the Reorganization Transactions and the IPO, 912,651 vested Class B Units held directly by employees of the Company or indirectly through Definitive OpCo were exchanged into 578,217 vested Definitive OpCo units based on their respective participation thresholds and the IPO price of $27.00

per share.

The Company recorded $1.5 million in stock-based compensation expense associated with time-based units in the nine months ended September 30, 2021

The Company recorded $1.3 million in stock-based compensation expense associated with unexchanged time-based units in the nine months ended September 30, 2020. At September 30, 2021, the Company had approximately $18.4 million of unrecognized unit-based compensation expense for unvested time-based units, including those that were exchanged for time-based units at IPO. The expense, which will be recorded under the terms of the 2019 Plan, is expected to be recognized over a weighted-average period of approximately 2.8 years.

13.	Equity-based Compensation

2019 Incentive Equity Plan

In July 2019, the Company and its Board of Members approved the 2019 Equity Incentive Plan under which the Parent Company has reserved approximately 8,088,877 Class B Units (the “2019 Incentive Equity Pool”). The 2019 Incentive Equity Pool is to be utilized for the issuance of units to employees, consultants, directors, managers, or other providing services to the Company pursuant to Board of Members approval. These interests are considered profit interests, which, in general, entitle the holder of the unit to a pro rata share of the increase in value of the unit over the base value determined at the award date and may be subject to such vesting and other restrictions as the Board of Members may deem appropriate. Any units forfeited or repurchased shall be available for future grants under the 2019 Incentive Equity Pool.

The units have time-based and performance-based vesting criteria. Generally, the time-based units vest in equal annual installments over a four-year period on the anniversary date of the vest date. The performance-based units vest based on the achievement of specified returns on investments upon a change of control, as defined in the agreement. Upon initial public offering unvested performance-based units would convert to restricted shares subject to 3 year vesting.

The Company assesses the fair value of the awards as of the grant date. The fair value of the units was estimated using a

two-step


	Successor Company
	Year ended December 31, 2020			Period from July 16, 2019 to December 31, 2019
Expected option term		5.5 years			5.5 years
Risk-free rate of return		1.73	%		1.73	%
Applied volatility		35	%		35	%

The expected option term represents management’s estimate of time to an exit event. The risk-free rate of return is based upon government securities with durations approximately equal to the option term. Applied volatility is based on the average volatility of the guideline companies.

The following table summarizes the Company’s unvested time-based and performance-based unit activity under the 2019 plan for the year ended December 31, 2020 (Successor) and the periods from July 16, 2019 and December 31, 2019 (Successor) and January 1, 2019 to July 15, 2019 (Predecessor):


	Time-based					Performance-based
2019 Plan	Non-Vested Units			Weighted Average Grant Date Fair Value		Non-Vested Units			Weighted Average Grant Date Fair Value
Non-vested at December 31, 2018 (Predecessor)		—		$	—		—		$	—
Granted		—			—		—			—
Vested		—			—		—			—

Non-vested at July 16, 2019 (Successor)		—		$	—		—		$	—
Granted		1,899,682			3.65		1,899,682			2.35
Vested		—			—		—			—
Forfeited		—			—		—			—

Non-vested at December 31, 2019 (Successor)		1,899,682		$	3.65		1,899,682		$	2.35
Granted		97,611			3.65		97,611			2.35
Vested		(474,920	)		3.65		—			—
Forfeited		(117,653	)		3.65		(156,870	)		2.35

Non-vested at December 31, 2020 (Successor)		1,404,720		$	3.65		1,840,423		$	2.35

During the year ended December 31, 2020 (Successor) and the period from July 16, 2019 to December 31, 2019 (Successor), 195,222 and 3,799,364 units, respectively, were granted under the plan.

2015 Incentive Equity Plan

On July 16, 2019, in conjunction with the purchase of the issued and outstanding Common Units of the Definitive Holdco by AIDH Buyer, LLC, the outstanding units of Series B, Series C, Series D, and Series E were sold to AIDH Buyer, LLC and the holders received a combination of cash and equity in AIDH TopCo, LLC, and the 2015 Equity Incentive Plan was terminated.

The 2015 Equity Incentive Plan under which the Company has reserved 407,750 Class B Units (the “2015 Incentive Equity Pool”) was approved in February 2015 by the Predecessor and Board of Managers. In December 2016, in connection with the amended and restated Limited Liability Company Agreement entered into, the 2015 Incentive Equity Pool was transferred to DHCB. The 2015 Incentive Equity Pool was utilized for the issuance of units to employees, consultants, directors, managers, or others providing service to the Company pursuant Board of Managers approval. Units granted out of the 2015 Incentive Equity Pool are designated series based on the period of grant, and prior to July 16, 2019, the outstanding units consisted of Series B, Series C, Series D, and Series E. These interests were considered profits interests, which in general, entitled the holder of the unit to a pro rata share of the increase in value of the unit over the base value determined at the award date and may be subject to such vesting and other restrictions as the Board of Managers may deem appropriate. Any units forfeited or repurchased were available for future grants under the 2015 Incentive Equity Pool.

The following table summarizes the 2015 Plan activity for the periods from January 1, 2019 through July 15, 2019 (Predecessor), and July 16, 2019 through December 31, 2019 (Successor).


2015 Plan	Non-Vested Units			Weighted Average Grant Date Fair Value
Non-vested at December 31, 2018 (Predecessor)		131,545		$	9.00
Granted		48,592			98.75
Vested		(180,137	)		33.21
Forfeited		—			—

Non-vested at July 16, 2019 (Successor)		—		$	—
Granted		—			—
Vested		—			—
Forfeited		—			—

Non-vested at July December 31, 2019 (Successor)		—		$	—

As of December 31, 2018 (Predecessor), the Company had authorized and issued, subject to vesting, 1 share of Class B Series A units, 73,418 shares of Class B Series B units, 57,105 shares of Class B Series C units, and 89,737 shares of Class B Series D units. During the year ended December 31, 2019, the Company authorized and issued 48,592 shares of Class B Series E units. On July 16, 2019, all shares of Series A, Series B, Series C, Series D, and Series E units vested upon the qualifying event and were cancelled. The Plan was also terminated on July 16, 2019.

The Company recorded total unit-based compensation of $1.7 million for the year ended December 31, 2020 (Successor) and $0.7 million and $5.8 million for the periods from July 16, 2019 through December 31, 2019 (Successor) and from January 1, 2019 through July 15, 2019 (Predecessor), respectively, as follows in the table below (in thousands):


	Successor Company				Predecessor Company
	Year ended December 31, 2020		Period From July 16, 2019 to December 31, 2019		Period From January 1, 2019 to July 15, 2019
Time-based:
2015 plan	$	—	$	—	$	5,807
2019 plan		1,747		744		—

Total time-based		1,747		744		5,807
Performance based:
2015 plan		—		—		—
2019 plan		—		—		—

Total performance-based		—		—		—

Total compensation expense	$	1,747	$	744	$	5,807

Equity-based compensation expense is allocated to all departments in the accompanying consolidated statements of income (loss) based on the recipients of the compensation. A summary of the expense by line item in the consolidated statements of income (loss) for the year ended December 31, 2020 (Successor) and the periods from July 16, 2019 to December 31, 2019 (Successor), and from January 1, 2019 to July 15, 2019 (Predecessor) is provided in the following table (in thousands).


	Successor Company				Predecessor Company
	Year ended December 31, 2020		Period From July 16, 2019 to December 31, 2019		Period From January 1, 2019 to July 15, 2019
Cost of revenue	$	62	$	28	$	256
Sales and Marketing		473		213		4,252
Product Development		356		126		665
General and administrative		856		377		634

Total compensation expense	$	1,747	$	744	$	5,807

The Company does not consider the vesting of the performance-based units to be probable and has not recorded any associated compensation expense. Accordingly, the Company had $4.3 million of unrecognized unit-based compensation expense for the performance-based units as of December 31, 2020.

As of December 31, 2020, the Company had $4.4 million of unrecognized unit-based compensation for time-based units, expected to be recognized over a weighted average remaining requisite period of 2.6 years.

Retirement Plan

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Retirement Benefits [Abstract]

Retirement Plan

14.	Retirement Plan

The Company has a 401(k) plan covering all employees who have met certain eligibility requirements. The Company incurred $1.7 million in employer matching contributions during the

nin

months ended September 30, 2021, and $1.1 million during the nine months ended September 30, 2020

14.	Retirement Plan

The Company has a 401(k) plan covering all employees who have met certain eligibility requirements. The Company made matching contributions in accordance with the plan documents. The Company incurred $1.6 million in employer matching contributions during the year ended December 31, 2020 and $0.5 million and $0.6 million during the periods from July 16, 2019 to December 31, 2019 (Successor), and from January 1, 2019 to July 15, 2019 (Predecessor), respectively.

The entire disclosure for retirement benefits.

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Stockholders' Equity Note [Abstract]

Stockholders' Equity and Members' Deficit

9 Months Ended

May 24, 2021

Sep. 30, 2021

Stockholders' Equity and Members' Deficit

3.	Stockholder’s Equity

The Corporation is authorized to issue 100 shares of Common Stock, par value $0.01 per share. In exchange for $100, the Corporation has issued 1 share of common stock, which is held by Advent International GPE IX Limited Partnership as of May 24, 2021.

12.	Stockholders’ Equity and Members’ Equity

The Company has Class A Common Stock, Class B Common Stock and Preferred Stock. Holders of outstanding shares of Class A Common Stock and Class B Common Stock will vote as a single class on all matters on which stockholders are entitled to vote generally, except as otherwise required by law. Class B Common Stock issued to holders of Definitive OpCo Units that are unvested shall have no vote per share until such time as such Units have vested

Class A Common Stockholders are entitled to receive dividends, if declared by our board of directors out of legally available funds. Upon our liquidation, dissolution or winding up and after payment in full of all amounts required to be paid to creditors and to the holders of Preferred Stock having liquidation preferences, if any, the holders of shares of our Class A Common Stock will be entitled to receive pro rata our remaining assets available for

distribution.

Class B Common Stockholders are not entitled to economic interests in Definitive Healthcare Corp. and do not have any right to receive dividends or to receive a distribution upon a liquidation or winding up of Definitive Healthcare Corp.

Shares of Preferred Stock have not been issued at September 30, 2021. The board of directors may authorize one or more series of Preferred Stock (including convertible Preferred Stock) and will determine, with respect to any series of Preferred Stock, the voting rights, preferences, participation, or other special rights and limitations.

Under the Amended Definitive OpCo LLC Agreement, the holders of LLC Units have the right to require Definitive OpCo to exchange all or a portion of their LLC Units for newly issued shares of Class A Common Stock, which may consist of unregistered shares, on a

one-for-one

basis (subject to customary adjustments, including for stock splits, stock dividends and reclassifications). Shares of Class B Common Stock and their corresponding LLC Units will be canceled on a

one-for-one

basis once an exchange has been completed.

As described in Note 1.

Description of Business

, the Company was formed by Advent International (“Advent”) for the purpose of acquiring Definitive Holdco. Upon formation of the Company, two classes of units were established: Class A Units (“Class A Units”) and Class B Units (“Class B Units”), collectively “the Units”.

The table below provides a summary of the number of Class A and Class B units authorized, issued and outstanding as of December 31, 2020, respectively.


	December 31, 2020
Class A units:

Authorized, issued and outstanding Class A units		130,245,990
Class B units:
Authorized Class B units		8,088,877
Issued Class B units		3,720,063
Outstanding Class B units (Vested Class B units)		474,920

During 2021, the Company issued 363,516 new Class A units worth $5.8 million, consisting of a capital contribution of $5.5 million and equity-based compensation expense of $0.3 million. Refer to Note 13.

Equity-Based Compensation

for more detail on Class B units.

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

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Income Taxes

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Income Taxes

15.	Income Taxes

As described in Note 1.

Business Organization

and Note 12.

Stockholders’ Equity and Members’ Equity

, as a result of the IPO, Definitive Healthcare Corp. began consolidating the financial results of Definitive OpCo. Definitive OpCo is treated as a partnership for U.S. federal and most applicable state and local income tax purposes. As a partnership, Definitive OpCo is not subject to U.S. federal and certain state and local income taxes. Any taxable income or loss generated by Definitive OpCo is passed through to and included in the taxable income or loss of its members, including Definitive Healthcare Corp., based on its economic interest held in Definitive OpCo. Definitive Healthcare Corp. was formed on May 5, 2021 and did not engage in any operations prior to the IPO. Definitive Healthcare Corp. is taxed as a corporation and is subject to U.S. federal, state, and local income taxes with respect to its allocable share of any taxable income or loss of Definitive OpCo, as well as such taxes on any stand-alone income or loss generated by Definitive Healthcare Corp. The Company has recorded an immaterial amount of tax expense associated with corporations owned by Definitive OpCo within general and administrative expense.

As of September 30, 2021, management performed an assessment of the recoverability of deferred tax assets. Management determined, based on the accounting standards applicable to such assessment, that sufficient negative evidence to conclude it was more likely than not that its deferred tax assets would not be realized and has recorded a valuation allowance against substantially all of its deferred tax assets. In the event that management determines the Company would be able to realize its deferred tax assets in the future in excess of their net recorded amount, an adjustment to the valuation allowance would be made which would reduce the provision for income taxes.

As of September 30, 2021 the Company has a net deferred tax liability of $

71.3

million which was recorded through equity as part of the Reorganization Transactions. The net deferred tax liability principally relates to taxable temporary differences that cannot be considered a source of income to recover the deferred tax assets due to attribute limitation rules.

The Company recognizes uncertain income tax positions when it is

more-likely-than-not

the position will be sustained upon examination. As of September 30, 2021 and December 31, 2020, the Company has not identified any uncertain tax positions and has not recognized any related reserves. The Company’s effective tax rate was (0.3)% and 0.0% for the

nine

months ended September 30, 2021 and 2020, respectively

Tax Receivable AgreementPursuant to the Company’s election under Section 754 of the Internal Revenue Code of 1986, as amended (the “Code”), the Company expects to obtain an increase in its share of the tax basis in the net assets of Definitive OpCo when LLC Interests are redeemed or exchanged by other members. The Company plans tomake an election under Section 754 of the Code for each taxable year in which a redemption of exchange of LLC Interest occurs. The Company intends to treat any redemptions and exchanges of LLC Interest as direct purchases of LLC Interests for U.S. federal income tax purposes. These increases in tax basis may reduce the amounts that would otherwise be paid in the future to various tax authorities. They may also decrease gains (or increase losses) on future dispositions of certain assets to the extent tax basis is allocated to those assets.

In connection with the IPO, the Company entered into a Tax Receivable Agreement (“TRA”) and recorded a liability under the TRA of

$146.1

million as of September 30, 2021 through equity as part of the Reorganization Transactions. Under the TRA, the Company generally will be required to pay certain of our pre-IPO owners

85% of the amount of cash savings, if any, in U.S. federal, state, or local tax that the Company actually realizes directly or indirectly (or is deemed to realize in certain circumstances) as a result of (i) certain tax attributes created as a result of any sales or exchanges (as determined for U.S. federal income tax purposes) to or with the Company of their interests in Definitive OpCo, including any basis adjustment relating to the assets of Definitive OpCo, (ii) certain favorable tax attributes acquired by the Company from the Blocker Companies in the Reorganization Transactions (including net operating losses and the unamortized portion of the increase in tax basis in the tangible and intangible assets of Definitive OpCo resulting from the prior acquisitions of interests in Definitive OpCo by the Blocker Companies), and (iii) tax benefits attributable to payments made under the TRA. The Company expects to benefit from the remaining 15% of any tax benefits that it may realize. To the extent that the Company is unable to timely make payments under the TRA for any reason, such payments generally will be deferred and will accrue interest until paid. No amounts are expected to be paid within the next 12 months.

15.	Income Taxes

The components of the income tax provision are as follows (in thousands):


	Successor Company					Predecessor Company
	Year ended December 31, 2020			Period from July 16, 2019 to December 31, 2019		Period from January 1, 2019 to July 15, 2019
Current tax provision:
Federal	$	10		$	—	$	—
State		1			—		—
Foreign		—			—		—

Total current tax provision	$	11		$	—	$	—
Deferred tax provision:
Federal	$	58		$	—	$	—
State		(7	)		—		49
Foreign		—			—		—

Total deferred tax provision		51			—		49

Total provision	$	62		$	—	$	49

Deferred taxes are recognized for temporary differences between the basis of assets and liabilities for financial statement and income tax purposes. The significant components of the deferred tax assets are comprised of the following (in thousands):


	Successor Company
	December 31, 2020			December 31, 2019
Deferred tax assets:
Foreign, U.S. and state net operating loss carryforwards	$	1,517		$	212
Accrued Expenses		12			—
Unrealized foreign exchange losses		62			—

Subtotal		1,591			212
Less valuation allowance		(1,430	)		—

Total deferred tax assets		161			212

Net deferred tax assets	$	161		$	212

A reconciliation of income tax expense computed at the statutory federal income tax rate to income taxes as reflected in the financial statements is as follows:


	Successor Company						Predecessor Company
	Year ended December 31, 2020			Period from July 16, 2019 to December 31, 2019			Period from January 16, 2019 to December 31, 2019
Federal income tax expense at statutory rate		21.00	%		21.00	%		0.00	%
State income tax, net of federal benefit		(0.14	)		0.04			0.00
Permanent differences		(0.98	)		(2.73	)		0.00
Research and development credit		0.00			0.00			0.00
Foreign rate differential		(0.01	)		0.00			0.00
Change in valuation allowance		0.60			0.00			0.00
Provision to return adjustments		0.46			0.00			0.00
Other		6.50			(0.04	)		0.37
Pass through income not subject to tax		(27.55	)		(18.27	)		0.01

Effective income tax rate		(0.12	%)		0.00	%		0.38	%

As of December 31, 2020 and 2019, the HSE subsidiary had U.S. federal net operating loss carryforwards of approximately $0.6 million and $1.1 million, respectively, a portion of which expire at various dates through 2037, and a portion of which may be carried forward indefinitely. As of December 31, 2020 and 2019, HSE had U.S. state net operating loss carryforwards of approximately $0.6 million and $1.5 million, respectively, a portion of which expire at various dates through 2037, and a portion of which may be carried forward indefinitely. As of December 31, 2020, the Swedish Monocl subsidiaries had foreign net operating loss carryforwards of approximately $6.9 million, which may be available to offset future Swedish income tax liabilities and may be carried forward indefinitely.

ASC 740 requires a valuation allowance to reduce the deferred tax assets reported if, based on the weight of the evidence, it is more likely than not that some portion or all of the deferred tax assets will not be realized. After consideration of all the evidence, both positive and negative, the Company has recorded a valuation allowance against the deferred tax assets of the Swedish Monocl subsidiaries at December 31, 2020, because the Company’s management has determined that it is more likely than not that the Company will not recognize the benefits of its foreign deferred tax assets primarily due to its historical loss position and, as a result, a valuation allowance of approximately $1.4 million has been established at December 31, 2020. The valuation allowance

increased by approximately $1.4 million in the tax year ended December 31, 2020. The increase in valuation allowance for the year ended December 31, 2020 primarily related to the net operating losses in the Swedish Monocl subsidiary.

Under the provisions of the Internal Revenue Code, the net operating loss and tax credit carryforwards are subject to review and possible adjustment by the Internal Revenue Service and state tax authorities. Net operating loss and tax credit carryforwards may become subject to an annual limitation in the event of certain cumulative changes in the ownership interest of significant shareholders over a three-year period in excess of 50 percent, as defined under Sections 382 and 383 of the Internal Revenue Code, respectively, as well as similar state provisions. This could limit the amount of tax attributes that can be utilized annually to offset future taxable income or tax liabilities. The amount of the annual limitation is determined based on the value of us immediately prior to the ownership change. Subsequent ownership changes may further affect the limitation in future years. In the future, the Company may complete financings that could result in a change in control, which will reduce the deferred tax assets for tax attributes the Company believes will expire unused due to the change in control limitations.

On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security (CARES) Act was signed into law making several changes to the Internal Revenue Code. The changes include but are not limited to: increasing the limitation on the amount of deductible interest expense, allowing companies to carryback certain net operating losses, and increasing the amount of net operating loss carryforwards that corporations can use to offset taxable income. The tax law changes in the Act did not have a material impact on the Company’s income tax provision.

The Company will recognize interest and penalties related to uncertain tax positions in income tax expense. As of December 31, 2020, and 2019, there was no accrued interest or penalties related to uncertain tax positions and no such amounts have been recognized.

The Company or one of its subsidiaries file income tax returns in the United States, and various state and foreign jurisdictions. The federal, state and foreign income tax returns are generally subject to tax examinations for the tax years ended December 31, 2017 through December 31, 2020. To the extent the Company has tax attribute carryforwards, the tax years in which the attribute was generated may still be adjusted upon examination by the Internal Revenue Service, state or foreign tax authorities to the extent utilized in a future period.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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Segment and Geographic Data

Loss Per Share

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Earnings Per Share [Abstract]

Loss Per Share

16.	Loss Per Share

Basic net loss per share of Class A Common Stock is computed by dividing net income attributable to Definitive Healthcare Corp. by the weighted-average number of shares of Class A Common Stock outstanding during the period, excluding unvested equity awards and subsidiary member units not exchanged. Diluted earnings per share of Class A Common Stock is calculated by dividing net income attributable to Definitive Healthcare Corp, adjusted for the assumed exchange of all potentially dilutive securities by the weighted-average number of shares of Class A Common Stock outstanding.

Prior to the IPO, the Definitive OpCo membership structure included Class A and Class B member units. The Company analyzed the calculation of earnings per unit for periods prior to the IPO and determined that it resulted in values that would not be meaningful to the users of these unaudited consolidated financial statements. Therefore, earnings per share information has not been presented for the nine months ended September 30, 2020.

The following table sets forth reconciliations of the numerators and denominators used to compute basic and diluted net loss per share of Class A Common Stock for the nine-months ended September 30, 2021. The basic and diluted earnings per share for the nine-months ended September 30, 2021 reflects only the period from September 15, 2021 to September 30, 2021, which represents the period wherein the Company had outstanding Class A Common Stock.


(in thousands)	Nine Months Ended September 30, 2021
Numerator:
Net loss	$	(46,493	)
Less: Net loss attributable to Definitive OpCo before Reorganization Transactions		(33,343	)
Less: Net loss attributable to noncontrolling interests		(5,172	)

Net loss attributable to Definitive Healthcare Corp.	$	(7,978	)

The following table sets forth the computation of basic and diluted net loss per share of Class A Common Stock (per share amounts unaudited):


(in thousands, except number of shares and per share amounts)	Nine Months Ended September 30, 2021
Basic net loss per share attributable to common stockholders
Numerator:
Allocation of net loss attributable to Definitive Healthcare Corp.	$	(7,978	)
Weighted average number of shares of Class A outstanding		88,263,333

Net loss per share, basic and diluted	$	(0.09	)

Shares of the Company’s Class B Common Stock do not participate in the earnings or losses of Definitive Healthcare Corp. and are therefore not participating securities. As such, separate presentation of basic and diluted earnings per share of Class B Common Stock under the

two-class

method has not been presented.

The following table presents potentially dilutive securities excluded from the computation of diluted net loss per share for the period presented because their effect would have been anti-dilutive:


	Nine Months Ended September 30, 2021
Definitive OpCo Units		57,192,893

16.	Net Loss per Unit

The following table presents the calculation of basic and diluted net income/(loss) per unit (“EPU”) for the Company’s common units:


	Successor Company
	Year Ended December 31, 2020			Period from July 16, 2019 to December 31, 2019
Net loss	$	(51,157	)	$	(49,266	)
Weighted-average units used to compute basic and diluted net loss per unit		127,682,376			126,794,329

Net loss per unit, basic and diluted	$	(0.40	)	$	(0.39	)

The Company has issued potentially dilutive instruments in the form of Class B Profit Interest Units granted to the Company’s employees. As of December 31, 2020, there were 474,920 vested Class B Profit Interest Units. The Company’s LLC operating agreement precludes Class B members from participating in distributions until Class A members’ capital contributions have been recovered and until performance hurdle rates have been exceeded. The Company does not include any of these instruments in its calculation of diluted loss per unit during the period from July 16, 2019 to December 31, 2019 (Successor) and for the year ended December 31, 2020 (Successor) because to include them would be anti-dilutive due to the Company’s net loss during the period.

Segment and Geographic Data

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Segment Reporting [Abstract]

17.	Segment and Geographic Data

The Company operates as one operating segment. Operating segments are defined as components of the Company for which separate financial information is available and evaluated regularly by the Company’s chief operating decision maker in deciding how to allocate resources and in assessing performance. The chief operating decision maker for the Company is the chief executive officer. The chief executive officer reviews financial information presented on a consolidated basis, accompanied by information about revenue by type of service and geographic region, for purposes of allocating resources and evaluating financial performance.

Revenues by geographic area presented based upon the location of the customer are as follows:


	For the Nine Months Ended September 30,
(in thousands)	2021		2020
United States	$	114,339	$	84,659
Rest of world		5,502		—

Total revenues	$	119,841	$	84,659

For a summary of our revenue disaggregated by service, refer to Note 4.

Revenue

Long-lived assets by geographical region are based on the location of the legal entity that owns the assets. Long-lived assets by geographic area presented based upon the location of the assets are as follows:


(in thousands)	September 30, 2021		December 31, 2020
United States	$	4,311	$	3,120
Rest of world		386		128

Total long-lived assets	$	4,697	$	3,248

17.	Segment and Geographic Data

Revenues by geographic area presented based upon the location of the customer are as follows (in thousands):


	Successor Company				Predecessor Company
	Year Ended December 31, 2020		Period from July 16, 2019 to December 31, 2019		Period from January 1, 2019 to July 15, 2019
United States	$	117,755	$	40,045	$	45,458
Rest of world		562		—		—

Total revenues	$	118,317	$	40,045	$	45,458

For a summary of our revenue disaggregated by service, refer to Note 4.

Revenue


	Successor Company
	December 31, 2020		December 31, 2019
United States	$	3,120	$	2,558
Rest of world		128		—

Total long-lived assets	$	3,248	$	2,558

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

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Principles of Consolidation

Related Parties

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Related Parties

18.	Related Parties

million, respectively. The associated receivable for the revenue transactions amounted to

$0.1

million and $0.7 million at September 30, 2021 and December 31, 2020, respectively.

The Company reimburses its private equity sponsors for services and any related travel and

out-of-pocket

expenses. During the nine months ended September 30, 2021, the Company had expenses for services, travel and

out-of-pocket

expenses to its private equity sponsors of $0.2 million and was not material for the nine months ended September 30, 2020. The associated payable for the service transactions was not material at September 30, 2021 and December 31, 2020.

On September 17, 2021, Definitive OpCo entered into an agreement to reimburse approximately $0.9 million in aggregate documented expenses incurred by Advent International, 22C Capital LLC (“22C Capital”), Spectrum Equity Management, L.P. (“Spectrum Equity”),

Jason Krantz and MHDH AB and in connection with the Reorganization Transactions. The amounts were included in accrued expenses and other current liabilities as of September 30, 2021 and are expected to be paid in the fourth quarter of 2021.

uring the second quarter of 2021, the Company issued 363,516 new Class A units worth $5.8 million to members of the Company’s board of directors. Further, in connection with Definitive Healthcare’s IPO, the underwriters reserved 5% of the common shares for sale at the initial offering price to the Company’s directors, officers and selected senior managers (the “Directed Share Program”). Richard Booth and Samuel A. Hamood participated in the Directed Share Program and purchased 7,407 and 37,037 shares of Class A Common Stock, respectively

18.	Related Parties

The Company reimburses its private equity sponsors for services and any related travel and out-of-pocket expenses. During the years ended December 31, 2020, and 2019, the Company had expenses for services, travel and out-of-pocket expenses to its private equity sponsors of $0.1 million and $0.0 million, respectively. The associated payable for the service transactions was de minimis at December 31, 2020 and 2019.

The Company has engaged in revenue transactions within the ordinary course of business with entities affiliated with its private equity sponsors and with members of the Company’s board of directors. During the years ended December 31, 2020, and 2019 the Company recorded revenue of $0.4 million and $0.2 million, respectively. The associated receivables for the revenue transactions were $0.1 million and $0.1 million at December 31, 2020 and 2019, respectively.

Noncontrolling Interest

9 Months Ended

Sep. 30, 2021

Noncontrolling Interest [Abstract]

Noncontrolling Interest

19.	Noncontrolling Interest

Definitive Healthcare Corp. operates and controls all of the business and affairs of Definitive OpCo, and through Definitive OpCo and its subsidiaries, conducts its business. Accordingly, Definitive Healthcare Corp.

consolidates the financial results of Definitive OpCo, and reports the noncontrolling interests of its consolidated subsidiaries on its consolidated financial statements based on the Definitive OpCo Units held by Continuing LLC Members. Changes in Definitive Healthcare Corp.’s ownership interest in its consolidated subsidiaries are accounted for as equity transactions. As such, future redemptions or direct exchanges of OpCo Units by Continuing LLC Members will result in a change in ownership and reduce or increase the amount recorded as Noncontrolling interests and increase or decrease Additional

paid-in

capital in the Company’s Condensed Consolidated Balance Sheets.

As of September 30, 2021, Definitive Healthcare Corp. held 88,263,333

units in the Definitive OpCo resulting in an ownership interest of

60.7%

Subsequent Events

9 Months Ended

12 Months Ended

May 24, 2021

Sep. 30, 2021

Dec. 31, 2020

Subsequent Events [Abstract]

Subsequent Events

4.	Subsequent Events

The Corporation has evaluated subsequent events through May 28, 2021, the date which the financial statement was issued, and did not identify any additional matters that require disclosure.

20.	Subsequent Events

Robert Musslewhite was appointed as President of Definitive Healthcare Corp. effective October 7, 2021. In connection with his appointment, Mr. Musslewhite entered into an employment agreement pursuant to which, he will be paid an annual base salary of $0.4 million. Mr. Musslewhite’s annual bonus will equal 68% of his

pro-rated

base salary calculated from the effective date of his employment agreement. In future years, Mr. Musslewhite will be eligible to receive an annual bonus of up to 68% of his base salary, determined in the sole discretion of the Board, and will be able to participate in the Company’s exective incentive plan on the same terms as similarly situated

executives.

In addition,

pursuant

to his employment agreement, Mr. Musslewhite will be granted a restricted stock unit award of 433,550 shares of the Company’s Class A common stock, which will vest 25% on the

one-year

anniversary of the grant, followed by quarterly vesting of 6.25% per quarter until fully vested over the subsequent three years. Further, Mr. Musslewhite will be granted a second restricted stock unit award in the amount of 216,450 shares of Class A common stock, 33% of which will vest on the

one-year

anniversary of the grant, followed by quarterly vesting of 8.33% per quarter until fully vested over the subsequent two years.

19.	Subsequent Events

The Company has evaluated subsequent events through May 28, 2021, the date which the consolidated financial statements were issued, and did not identify any additional matters that require disclosure.

Summary of Significant Accounting Policies (Policies)

9 Months Ended

12 Months Ended

May 24, 2021

Sep. 30, 2021

Dec. 31, 2020

Basis of Presentation

Basis of Accounting

Basis of Presentation

The accompanying unaudited condensed

consolidated

financial

statements

Refer to Note 2.

Summary of Significant

Accounting

Policies

Basis of Presentation

Use of Estimates in the Preparation of Financial Statements

Revenue Recognition

The Company recognizes revenue in accordance with ASC 606–

Revenue from Contracts with Customers

Revenue related to hosted subscription license arrangements, which often include

non-distinct

non-cancellable.

Fair Value Measurements

Level 1 - Observable inputs that reflect unadjusted quoted prices in active markets for identical assets or liabilities

Level 2 - Other inputs that are directly or indirectly observable in the marketplace

Level 3 - Unobservable inputs that are supported by little or no market activity, including the Company’s own assumptions in determining fair value.

Cash and Cash Equivalents

The Company considers all short-term, highly liquid investments with an original maturity of three months or less to be cash and cash equivalents.

Concentration of Credit Risk and Significant Customers

off-balance-sheet

credit exposure related to its customers.

Accounts Receivable, Net and Contract Assets

Deferred Contract Costs

The capitalized amounts are recoverable through future revenue streams under all

non-cancellable

Property and Equipment, Net

Property and equipment are stated at cost, net of accumulated depreciation and amortization. The assets are depreciated on a straight-line basis over the estimated useful lives as follows:


Furniture and equipment		5 years
Computers and software		3 years
Leasehold improvements		Lesser of the asset life or lease term

Advertising and Promotional Expenses

The Company expenses advertising costs as incurred in accordance with ASC 720—

Other Expenses – Advertising Cost

Software Development Costs

The Company accounts for its software development costs in accordance with the guidance set forth in ASC

350-40,

Intangibles – Goodwill and Other – Internal Use Software.

Business Combinations

The Company accounts for business combinations using the acquisition method in accordance with ASC 805,

Business Combinations

In addition, uncertain tax positions and

tax-related

For any given acquisition, the Company may identify certain

pre-acquisition

Goodwill and Intangible Assets

Definite-lived intangible assets are amortized over their estimated useful lives,


Customer relationships		14 – 15 years
Technology		7 – 8 years
Tradenames / trademark		17 – 19 years
Data		1– 4 years

Impairment of Long-Lived Assets

Deferred Revenue

Debt Issuance Costs

non-current

non-revolving

credit facilities.

Deferred Initial Public Offering Costs

non-current

Sales Tax

Income Taxes

Under the provisions of ASC 740

, Income Taxes

Net Loss Per Unit

Net income or loss per unit is computed in conformity with the

two-class

method required for participating securities. The

two-class

method of computing earnings per share is required for entities that have participating securities. The

two-class

Net Loss

Per

Unit

for additional information on dilutive securities.

Equity-based Compensation

The Company accounts for these profit interest units in accordance with ASC 718—

Compensation – Stock Compensation.

The Company classifies equity-based compensation expense in its consolidated statements of (loss) income in the same manner in which the award recipient’s salary and related costs are classified.

Adoption of Recently Issued Financial Accounting Standards

In August 2018, the FASB issued ASU No.

2018-15—

Intangibles — Goodwill and Other —

Internal-Use

Software (Subtopic

350-40),

Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract

internal-use

impact

on the consolidated financial statements.

Adoption of Recently Issued Financial Accounting Standards

In May 2014, the FASB issued ASC 606—

Revenue from Contracts with Customers

340-40,

Other Assets and Deferred Costs – Contracts with Customers

The cumulative effect of applying the new guidance was recorded as an adjustment to members’ capital as of the adoption date.

As a result of applying the modified retrospective method to adopt the new revenue guidance, the following adjustments were made to the consolidated balance sheet as of January 1, 2019.


	As reported December 31, 2018		ASC 606 Adjustments			As Adjusted January 1, 2019
Consolidated Balance Sheet:
Accounts receivable, net	$	14,932	$	367		$	15,299
Current portion of deferred contract costs		—		1,346			1,346
Total current assets		35,176		1,713			36,889
Deferred contract costs, net of current portion		—		2,973			2,973

Total assets	$	87,061	$	4,686		$	91,747
Current portion of deferred revenue		32,187		(729	)		31,458
Total current liabilities		36,676		(729	)		35,947

Total liabilities		36,676		(729	)		35,947
Members’ capital		50,385		5,415			55,800

Total liabilities and members’ capital	$	87,061	$	4,686		$	91,747

the previous revenue recognition standard, been in effect:


	As Reported December 31, 2019		Adjustments			As Adjusted December 31, 2019
Consolidated Balance Sheet:
Accounts receivable, net	$	25,021	$	(250	)	$	24,771
Current portion of contract assets		769		(769	)		—

Total current assets		36,107		(1,019	)		35,088
Contract assets, net of current portion		2,116		(2,116	)		—
Total assets		1,721,154		(3,135	)		1,718,019

Current portion of deferred revenue		45,977		990			46,967
Total current liabilities		69,917		990			70,907
Total liabilities		504,914		990			505,904
Members’ capital (deficit)		1,216,240		(4,125	)		1,212,115

Total liabilities and members’ capital (deficit)	$	1,721,154	$	(3,135	)	$	1,718,019


	Predecessor Company
	As Reported Period from January 1, 2019 to July 15, 2019			Adjustments			As Adjusted Period from January 1, 2019 to July 15, 2019
Revenue	$	45,458		$	(79	)	$	45,379

Total cost of revenue		5,328			—			5,328

Gross profit		40,130			(79	)		40,051
Sales and marketing		16,039			1,416			17,455
Total operating expenses		27,097			1,416			28,513

Income (loss) from operations		13,033			(1,495	)		11,538
Total other expense, net		(165	)		—			(165	)

Net income (loss)	$	12,868		$	(1,495	)	$	11,373


	Successor Company
	As Reported Period from July 16, 2019 to December 31, 2019			Adjustments			As Adjusted Period from July 16, 2019 to December 31, 2019
Revenue	$	40,045		$	(66	)	$	39,979

Total cost of revenue		13,282			—			13,282

Gross profit		26,763			(66	)		26,697
Sales and marketing		10,814			2,885			13,699
Total operating expenses		57,825			2,885			60,710

Loss from operations		(31,062	)		(2,951	)		(34,013	)
Total other expense, net		(18,204	)		—			(18,204	)

Net loss	$	(49,266	)	$	(2,951	)	$	(52,217	)

In January 2017, the FASB issued ASU No.

2017-04

—Goodwill and Other (Topic 350) – Simplifying the Test for Goodwill Impairment.

ASU

2017-04

In June 2018, the FASB issued ASU

No. 2018-07

—Compensation—Stock Compensation (Topic 718), Improvements to Nonemployee Share-based Payment Accounting

Recently-Issued Accounting Pronouncements Not Yet Adopted

In February 2016, the FASB issued ASU 2016-02—

Leases

non-public

entities which are a part of the “all other” category.

The Company will adopt ASU

2016-02

and all associated amendments on the first day of fiscal 2022 (January 1st, 2022) which includes, as allowed under ASU

2018-11,

non-lease

In June 2016, the FASB issued ASU No. 2016-13—

Financial Instruments

–

Credit Losses (Topic 326)

–

Measurement of Credit Losses on Financial Instruments

In December 2019, the FASB issued ASU No.

2019-12—

Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes.

In March 2020, the FASB issued ASU No.

2020-04—

Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

. The amendments of ASU

No. 2020-04

Recently-Issued Accounting Pronouncements Not Yet Adopted

In February 2016, the FASB issued ASU

2016-02—

Leases

. The new standard establishes a

right-of-use

In June 2016, the FASB issued ASU No.

2016-13

—Financial Instruments—Credit Losses (Topic 326)—Measurement of Credit Losses on Financial Instruments.

In August 2018, the FASB issued ASU No.

2018-15—

Intangibles—Goodwill and

Other—Internal-Use

Software (Subtopic

350-40),

Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract

. This standard aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing

implementation costs incurred to develop or obtain

internal-use

In December 2019, the FASB issued ASU No.

2019-12—

Income Taxes (Topic 740), Simplifying the Accounting for Income Taxes

In March 2020, the FASB issued ASU No.

2020-04—

Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting

. The amendments of ASU

No. 2020-04

are effective for companies as of March 12, 2020 through December 31, 2022. An entity may elect to apply the amendments for contract modifications by Topic or Industry Subtopic as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020, or prospectively from a date within an interim period that includes or is subsequent to March 12, 2020, up to the date that the financial statements are available to be issued. The amendments in this update apply only to contracts, hedging relationships and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform and provide optional expedients and exceptions for applying U.S. GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. The Company is evaluating the impact that the amendments of this standard would have on the Company’s consolidated financial position or results of operations upon adoption.

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Scheudle Of Changes On Balance Sheet And Income Statement Due To The Adoption Of New Accounting pronouncements

As a result of applying the modified retrospective method to adopt the new revenue guidance, the following adjustments were made to the consolidated balance sheet as of January 1, 2019.


	As reported December 31, 2018		ASC 606 Adjustments			As Adjusted January 1, 2019
Consolidated Balance Sheet:
Accounts receivable, net	$	14,932	$	367		$	15,299
Current portion of deferred contract costs		—		1,346			1,346
Total current assets		35,176		1,713			36,889
Deferred contract costs, net of current portion		—		2,973			2,973

Total assets	$	87,061	$	4,686		$	91,747
Current portion of deferred revenue		32,187		(729	)		31,458
Total current liabilities		36,676		(729	)		35,947

Total liabilities		36,676		(729	)		35,947
Members’ capital		50,385		5,415			55,800

Total liabilities and members’ capital	$	87,061	$	4,686		$	91,747

the previous revenue recognition standard, been in effect:


	As Reported December 31, 2019		Adjustments			As Adjusted December 31, 2019
Consolidated Balance Sheet:
Accounts receivable, net	$	25,021	$	(250	)	$	24,771
Current portion of contract assets		769		(769	)		—

Total current assets		36,107		(1,019	)		35,088
Contract assets, net of current portion		2,116		(2,116	)		—
Total assets		1,721,154		(3,135	)		1,718,019

Current portion of deferred revenue		45,977		990			46,967
Total current liabilities		69,917		990			70,907
Total liabilities		504,914		990			505,904
Members’ capital (deficit)		1,216,240		(4,125	)		1,212,115

Total liabilities and members’ capital (deficit)	$	1,721,154	$	(3,135	)	$	1,718,019


	Predecessor Company
	As Reported Period from January 1, 2019 to July 15, 2019			Adjustments			As Adjusted Period from January 1, 2019 to July 15, 2019
Revenue	$	45,458		$	(79	)	$	45,379

Total cost of revenue		5,328			—			5,328

Gross profit		40,130			(79	)		40,051
Sales and marketing		16,039			1,416			17,455
Total operating expenses		27,097			1,416			28,513

Income (loss) from operations		13,033			(1,495	)		11,538
Total other expense, net		(165	)		—			(165	)

Net income (loss)	$	12,868		$	(1,495	)	$	11,373


	Successor Company
	As Reported Period from July 16, 2019 to December 31, 2019			Adjustments			As Adjusted Period from July 16, 2019 to December 31, 2019
Revenue	$	40,045		$	(66	)	$	39,979

Total cost of revenue		13,282			—			13,282

Gross profit		26,763			(66	)		26,697
Sales and marketing		10,814			2,885			13,699
Total operating expenses		57,825			2,885			60,710

Loss from operations		(31,062	)		(2,951	)		(34,013	)
Total other expense, net		(18,204	)		—			(18,204	)

Net loss	$	(49,266	)	$	(2,951	)	$	(52,217	)

Business Combinations (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Business Acquisition [Line Items]

Schedule of Proforma Information Related to Business Combination

Unaudited Pro Forma Supplementary Data


(in thousands)	Year Ended December 31, 2019
Revenue	$	84,122
Net loss		(92,228	)

Schedule of Reconciliation of Purchase Price to the Capital Contribution

The following table reconciles the purchase price to the capital contribution made by Sponsor as July 16, 2019 (in thousands):


Total purchase price	$	1,699,612
Transaction costs paid from proceeds		4,004
Less Debt Financing		436,359

Capital Contribution	$	1,267,257

Monocl Holding Company

Business Acquisition [Line Items]

Schedule of Consideration Transferred in Business Combination

On October 27, 2020, the Company completed the purchase of all outstanding shares of Monocl for a total estimated consideration of $46.3 million

and up to $60 million,

summarized as follows:


(in thousands)
Cash consideration	$	18,307
Equity issuance		25,439
Contingent consideration		2,600

Purchase price	$	46,346

The consideration transferred for the transaction is summarized as follows (in thousands):


Cash consideration	$	18,307
Equity issuance		25,439
Contingent consideration		2,600

Purchase price	$	46,346

Schedule of Recognized Assets and Libailities Pertaining to Business Combination


(in thousands)
Preliminary allocation:	October 27, 2020
Cash	$	2,774
Accounts receivable		788
Prepaid expenses and other current assets		614
Property and equipment		20
Intangible assets		18,900
Accounts payable and accrued expenses		(2,137	)
Deferred revenue		(2,884	)

Total assets acquired and liabilities assumed		18,075
Goodwill		28,271

Purchase price	$	46,346

The final allocation of the acquisition-date fair values of assets and liabilities pertaining to this business combination as of December 31, 2020, was as follows (in thousands):


	October 27, 2020
Cash	$	2,774
Accounts receivable		788
Prepaid expenses and other current assets		614
Property and equipment		20
Intangible assets		18,900
Accounts payable and accrued expenses		(2,137	)
Deferred revenue		(2,884	)

Total assets acquired and liabilities assumed		18,075
Goodwill		28,271

Purchase price	$	46,346

Schedule of Proforma Information Related to Business Combination

Unaudited Pro Forma Supplementary Data:


	Nine Months Ended September 30, 2020
(in thousands)
Revenue	$	91,750
Net loss		(43,763	)

Unaudited Pro Forma Supplementary Data


(in thousands)	Year Ended December 31, 2020			Year Ended December 31, 2019
Revenue	$	122,333		$	87,157
Net loss		(58,350	)		(97,134	)

Definitive Holdco

Business Acquisition [Line Items]

Schedule of Consideration Transferred in Business Combination

The consideration transferred for the transaction is summarized as follows (in thousands):


Cash consideration	$	1,129,346
Common units issued		570,266

Purchase price	$	1,699,612

Schedule of Recognized Assets and Libailities Pertaining to Business Combination


	Predecessor Company			Successor Company
	Carrying Values as of July 15, 2019			Fair Value Adjustments			Final Allocations July 16, 2019
Cash	$	17,058		$	—		$	17,058
Accounts receivable		12,747			—			12,747
Deferred contract costs		5,735			(5,735	)		—
Prepaid expenses and other current assets		1,539			150			1,689
Other assets		49			—			49
Property and equipment		2,201			—			2,201
Intangible assets		19,108			456,292			475,400
Accounts payable and accrued expenses		(5,477	)		684			(4,793	)
Deferred revenue		(38,278	)		6,278			(32,000	)

Total assets acquired and liabilities assumed		14,682			457,669			472,351
Goodwill	$	82,767		$	1,144,494			1,227,261

Total purchase price							$	1,699,612


	Predecessor July 15, 2019		Debt Financing / Finance Merger			Fair Value Adjustments			Successor July 16, 2019
Cash	$	17,058	$	—		$	—		$	17,058
Accounts receivable		12,747		—			—			12,747
Prepaid expenses and other current assets		1,539		16			150			1,705
Deferred contract costs		5,735		—			(5,735	)		—
Property and equipment		2,201		—			—			2,201
Intangible assets		19,108		—			456,292			475,400
Goodwill		82,767		—			1,144,494			1,227,261
Other assets		49		14,589			—			14,638

Total assets	$	141,204	$	14,605		$	1,595,201		$	1,751,010

Accounts payable and accrued expenses	$	5,477	$	10,407		$	(684	)	$	15,200
Deferred revenue		38,278		—			(6,278	)		32,000
Term Loan		—		436,553			—			436,553

Total liabilities		43,755		446,960			(6,962	)		483,753
Members’ Capital		97,449		(432,355	)		1,602,163			1,267,257

Total liabilities and equity	$	141,204	$	14,605		$	1,595,201		$	1,751,010

Revenue (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following table represents a disaggregation of revenue from arrangements with customers for the nine months ended September 30, 2021 and 2020, respectively:


	Nine Months Ended September 30,
(in thousands)	2021		2020
Platform subscriptions	$	118,545	$	83,814
Professional services		1,296		845

Total revenue	$	119,841	$	84,659


	Successor Company				Predecessor Company
	Year Ended December 31, 2020		Period from July 16, 2019 to December 31, 2019		Period from January 1, 2019 to July 15, 2019
Platform subscriptions	$	117,080	$	39,872	$	45,244
Professional services		1,237		173		214

Total revenue	$	118,317	$	40,045	$	45,458

Schedule of Opening and Closing Balances of Receivables Deferred Contract Costs and Contract Liabilities

The opening and closing balances of the Company’s receivables, deferred contract costs and contract liabilities from contracts with customers are as follows:


(in thousands)	September 30, 2021		December 31, 2020
Accounts receivable, net	$	27,886	$	33,108
Deferred contract costs		5,359		2,947
Long-term deferred contract costs		9,388		5,952
Deferred revenues		70,179		61,200

The opening and closing balances of the Company’s receivables, deferred contract costs and contract liabilities from contracts with customers are as follows (in thousands):


	Successor Company						Predecessor Company
	December 31, 2020		December 31, 2019		July 16, 2019		July 15, 2019		January 1, 2019
Accounts receivables, net	$	33,108	$	25,021	$	12,747	$	12,747	$	15,299
Deferred contract costs		2,947		769		—		1,906		1,346
Long-term deferred contract costs		5,952		2,116		—		3,829		2,973
Deferred revenues	$	61,200	$	46,125	$	32,000	$	38,278	$	31,458

Schedule of Activity Impacting the Deferred Contract Costs

A summary of the activity impacting the deferred contract costs for the nine months ended September 30, 2021 and the year ended December 31, 2020 is presented below:


(in thousands)	September 30, 2021			December 31, 2020
Balance at beginning of period	$	8,899		$	2,885
Costs amortized		(3,195	)		(1,670	)
Additional amounts deferred		9,043			7,684

Balance at end of period		14,747			8,899

Classified as:
Current		5,359			2,947
Non-current		9,388			5,952

Total deferred contract costs (deferred commissions)	$	14,747		$	8,899


	Successor Company						Predecessor Company
	Year Ended December 31, 2020			Period from July 16, 2019 to December 31, 2019			Period from January 1, 2019 to July 15, 2019
Balance at beginning of period	$	2,885		$	5,735		$	—
Adoption of ASC 606		—			—			4,320
Costs amortized		(1,670	)		(189	)		(824	)
Additional amounts deferred		7,684			3,074			2,239
Acquisition-related adjustment		—			(5,735	)

Balance at end of period	$	8,899		$	2,885		$	5,735
Classified as:
Current		2,947			769			—
Non-current		5,952			2,116			—

Total deferred contract costs (deferred commissions)	$	8,899		$	2,885		$	—

Schedule of Activity Impacting Deferred Revenue Balances

A summary of the activity impacting deferred revenue balances during the nine months ended September 30, 2021 and for the year ended December 31, 2020 is presented below:


(in thousands)	September 30, 2021			December 31, 2020
Balance at beginning of period	$	61,200		$	46,125
Revenue recognized		(119,841	)		(118,317	)
Additional amounts deferred		128,820			133,392

Balance at end of period	$	70,179		$	61,200


	Successor Company						Predecessor Company
	Year Ended December 31, 2020			Period from July 16, 2019 to December 31, 2019			Period from January 1, 2019 to July 15, 2019
Balance at beginning of period	$	46,125		$	38,278		$	32,187
Adoption of ASC 606		—			—			(729	)
Acquisition adjustment		—			(6,278	)		—
Revenue recognized 1		(118,317	)		(40,045	)		(45,458	)
Additional amounts deferred 1		133,392			54,170			52,278

Balance at end of period	$	61,200		$	46,125		$	38,278

1	Amounts include total revenue deferred and recognized during each respective period.

Schedule of Revenue Remaining Performance Obligation

The remaining performance obligations consisted of the following:


(in thousands)	September 30, 2021		December 31, 2020
Current	$	128,653	$	114,284
Non-current		78,900		58,250

Total	$	207,553	$	172,534

The remaining performance obligations consisted of the following (in thousands):


	Successor Company
	December 31, 2020		December 31, 2019
Current (1)	$	114,284	$	82,291
Noncurrent (1)		58,250		40,475

Total	$	172,534	$	122,766

(1)	The above table has been corrected for certain errors. Previously reported current, noncurrent and total amounts were $121,623, $51,368, and $172,991 respectively for 2020 and $90,237, $32,957, and $123,194 respectively for 2019.

Accounts Receivable (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Accounts Receivable, after Allowance for Credit Loss, Current [Abstract]

Schedule of Accounts Receivable

Accounts receivable consisted of the following:


(in thousands)	September 30, 2021			December 31, 2020
Accounts receivable	$	28,243		$	33,635
Unbilled receivable		496			329

		28,739			33,964
Less: allowance for doubtful accounts		(853	)		(856	)

Accounts receivable, net	$	27,886		$	33,108

Accounts receivable consisted of the following (in thousands):


	Successor Company
	December 31, 2020			December 31, 2019
Accounts receivable	$	33,635		$	25,220
Unbilled receivable		329			251

	$	33,964		$	25,471
Less: allowance for doubtful accounts		(856	)		(450	)

Accounts receivable, net	$	33,108		$	25,021

Property and Equipment (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Property, Plant and Equipment [Abstract]

Schedule of Property Plant and Equipment

Property and equipment consisted of the following:


(in thousands)	September 30, 2021			December 31, 2020
Computers and software	$	4,455		$	3,141
Furniture and equipment		1,580			1,109
Leasehold improvements		2,766			1,781
Construction and software development in process		—			128

		8,801			6,159
Less: accumulated depreciation and amortization		(4,104	)		(2,911	)

Property and equipment, net	$	4,697		$	3,248

Property and equipment consisted of the following (in thousands):


	Successor Company
	December 31, 2020			December 31, 2019
Computers and software	$	3,141		$	2,042
Furniture and equipment		1,109			777
Leasehold improvements		1,781			1,188
Construction in process		128			310

	$	6,159		$	4,317
Less: accumulated depreciation and amortization		(2,911	)		(1,759	)

Property and equipment, net	$	3,248		$	2,558

Goodwill and Intangible Assets (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Carrying Amounts of Goodwill and Intangible Assets

The carrying amounts of goodwill and intangible assets, as of September 30, 2021 and December 31, 2020, consist of the following:


	September 30, 2021
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Finite-lived intangible assets:
Customer relationships	$	370,030	$	(84,159	)	$	285,871
Developed technologies		51,100		(15,648	)		35,452
Tradenames		35,500		(4,510	)		30,990
Database		42,656		(28,246	)		14,410

Total finite-lived intangible assets		499,286		(132,563	)		366,723
Goodwill		1,261,444		—			1,261,444

Total goodwill and Intangible assets	$	1,760,730	$	(132,563	)	$	1,628,167


	December 31, 2020
(in thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Finite-lived intangible assets:
Customer relationships	$	370,030	$	(58,097	)	$	311,933
Developed technologies		51,100		(10,218	)		40,882
Tradenames		35,500		(2,952	)		32,548
Database		42,656		(17,782	)		24,874

Total finite-lived intangible assets		499,286		(89,049	)		410,237
Goodwill		1,261,444		—			1,261,444

Total goodwill and Intangible assets	$	1,760,730	$	(89,049	)	$	1,671,681

The carrying amounts of goodwill and intangible assets, as of December 31, 2020 and 2019, consist of the following (in thousands):


	December 31, 2020 (Successor)
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Finite-lived intangible assets:
Customer relationships	$	370,030	$	(58,097	)	$	311,933
Developed technologies		51,100		(10,218	)		40,882
Tradenames		35,500		(2,952	)		32,548
Data		42,656		(17,782	)		24,874

Total finite-lived intangible assets		499,286		(89,049	)		410,237
Goodwill		1,261,444		—			1,261,444

Total goodwill and Intangible assets	$	1,760,730	$	(89,049	)	$	1,671,681


	December 31, 2019 (Successor)
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Finite-lived intangible assets:
Customer relationships	$	358,130	$	(21,075	)	$	337,055
Developed technologies		48,500		(3,206	)		45,294
Tradenames		34,100		(928	)		33,172
Data		36,268		(5,408	)		30,860

Total finite-lived intangible assets		476,998		(30,617	)		446,381
Goodwill		1,233,173		—			1,233,173

Total goodwill and Intangible assets	$	1,710,171	$	(30,617	)	$	1,679,554

Schedule of Estimated Intangible Amortization Expense

Estimated total intangible amortization expense during the next five years and thereafter is as follows (in thousands):


2021	$	58,143
2022		53,653
2023		45,709
2024		42,485
2025		38,296
Thereafter		171,951

Total	$	410,237

Schedule of Changes in Carrying Amount of Goodwill


Balance at January 1, 2019 (Predecessor)	$	63,623
HIMSS acquisition (Note 3)		19,145

Balance at July 15, 2019 (Predecessor)		82,768
Definitive Holdco Acquisition (Note 3)	$	1,144,494

Balance at July 16, 2019 (Successor)	$	1,227,262
HSE acquisition (Note 3)		5,911

Balance at December 31, 2019 (Successor)		1,233,173
Monocl acquisition (Note 3)		28,271

Balance at December 31, 2020 (Successor)	$	1,261,444

Accrued Expenses and Other Current Liabilities (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Payables and Accruals [Abstract]

Schedule of Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following:


(in thousands)	September 30, 2021		December 31, 2020
Payroll and payroll-related	$	7,246	$	7,792
Accrued interest		233		5,365
Contingent consideration, current		6,905		1,500
Sales taxes		1,146		649
Deferred rent		112		583
Other		3,654		1,432

Accrued expenses and other current liabilities	$	19,296	$	17,321

Accrued expenses and other current liabilities consisted of the following (in thousands):


	Successor Company
	December 31, 2020		December 31, 2019
Payroll and payroll-related	$	7,792	$	3,879
Accrued interest		5,365		4,215
Contingent consideration, current		1,500		—
Sales taxes		649		1,916
Deferred rent		583		17
Other		1,432		321

Accrued expenses and other current liabilities	$	17,321	$	10,348

Stockholders' Equity and Members' Equity (Tables)

9 Months Ended

Sep. 30, 2021

Stockholders Equity And Members Deficit [Abstract]

Schedule Of Common Stock Units Authorized Issued And Outstanding

The table below provides a summary of the number of Class A and Class B units authorized, issued and outstanding as of December 31, 2020, respectively.


	December 31, 2020
Class A units:

Authorized, issued and outstanding Class A units		130,245,990
Class B units:
Authorized Class B units		8,088,877
Issued Class B units		3,720,063
Outstanding Class B units (Vested Class B units)		474,920

Equity-based Compensation (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Summary of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value

Significant assumptions used to estimate the fair value of units were as follows, which were the same between service-based and performance-based shares:


	September 15, 2021	December 31, 2020
Expected option term	0.30 — 0.70 years	5.5 years
Risk-free rate of return	0.01% — 0.06%	1.73%
Applied volatility	30%	35%

Significant assumptions used to estimate the fair value of units were as follows, which were the same between service-based and performance-based shares:


	Successor Company
	Year ended December 31, 2020			Period from July 16, 2019 to December 31, 2019
Expected option term		5.5 years			5.5 years
Risk-free rate of return		1.73	%		1.73	%
Applied volatility		35	%		35	%

Schedule of allocation of share based compensation costs by plan

A summary of the expense by line item in the consolidated statements of operations for the nine months ended September 30, 2021 and 2020, respectively, is provided in the following table.


	Nine Months Ended September 30,
(in thousands)	2021		2020

Cost of revenue	$	79	$	46
Sales and marketing		567		380
Product development		341		267
General and administrative		3,351		637

Total compensation expense	$	4,338	$	1,330


	Successor Company				Predecessor Company
	Year ended December 31, 2020		Period From July 16, 2019 to December 31, 2019		Period From January 1, 2019 to July 15, 2019
Time-based:
2015 plan	$	—	$	—	$	5,807
2019 plan		1,747		744		—

Total time-based		1,747		744		5,807
Performance based:
2015 plan		—		—		—
2019 plan		—		—		—

Total performance-based		—		—		—

Total compensation expense	$	1,747	$	744	$	5,807


	Successor Company				Predecessor Company
	Year ended December 31, 2020		Period From July 16, 2019 to December 31, 2019		Period From January 1, 2019 to July 15, 2019
Cost of revenue	$	62	$	28	$	256
Sales and Marketing		473		213		4,252
Product Development		356		126		665
General and administrative		856		377		634

Total compensation expense	$	1,747	$	744	$	5,807

Schedule Of Unvested Restricted Stock Options

The following table summarizes the Company’s unvested time-based and performance-based RSU activity for the nine months ended September 30, 2021.


	Time-Based					Performance-Based
	Restricted Stock Units			Weighted Average Grant Date Fair Value		Restricted Stock Units		Weighted Average Grant Date Fair Value
Unvested at beginning of period		—		$	—		—	$	—
Granted		1,300,328		$	27.00		164,353	$	27.00
Vested		—		$	—		—	$	—
Forfeited		(2,656	)	$	27.00		—	$	—

Unvested at end of period		1,297,672		$	27.00		164,353	$	27.00

Time Based Restricted Stock Units [Member]

Schedule Of Unvested Restricted Stock Options

The following table summarizes the Company’s unvested time-based and performance-based unit activity from January 1, 2021 through September 30, 2021.


	Time-Based					Performance-Based
	Non-Vested Units			Weighted Average Grant Date Fair Value		Non-Vested Units			Weighted Average Grant Date Fair Value
Non-vested at December 31, 2020		1,404,720		$	3.65		1,840,423		$	2.35
Granted		1,477,323			1.41		1,177,308			0.41
Vested		(437,731	)		3.64		—			—
Forfeited		(13,770	)		3.65		(18,361	)		2.35

Non-vested at September 15, 2021		2,430,542		$	2.29		2,999,370		$	1.59

Effect of Reorganization Transactions and IPO		(1,165,679	)		2.08		(1,318,171	)		1.39
Performance-based units exchanged for time-based units		1,681,199			1.74		(1,681,199	)		1.74
Vested		(74,049	)		2.75		—			—
Forfeited		(72,149	)		2.78		—			—

Non-vested at September 30, 2021		2,799,864		$	2.02		—		$	—

2019 Incentive Equity Pool [Member]

Summary of Nonvested Restricted Stock Shares Activity


	Time-based					Performance-based
2019 Plan	Non-Vested Units			Weighted Average Grant Date Fair Value		Non-Vested Units			Weighted Average Grant Date Fair Value
Non-vested at December 31, 2018 (Predecessor)		—		$	—		—		$	—
Granted		—			—		—			—
Vested		—			—		—			—

Non-vested at July 16, 2019 (Successor)		—		$	—		—		$	—
Granted		1,899,682			3.65		1,899,682			2.35
Vested		—			—		—			—
Forfeited		—			—		—			—

Non-vested at December 31, 2019 (Successor)		1,899,682		$	3.65		1,899,682		$	2.35
Granted		97,611			3.65		97,611			2.35
Vested		(474,920	)		3.65		—			—
Forfeited		(117,653	)		3.65		(156,870	)		2.35

Non-vested at December 31, 2020 (Successor)		1,404,720		$	3.65		1,840,423		$	2.35

2015 Incentive Equity Pool [Member]

Summary of Nonvested Restricted Stock Shares Activity

The following table summarizes the 2015 Plan activity for the periods from January 1, 2019 through July 15, 2019 (Predecessor), and July 16, 2019 through December 31, 2019 (Successor).


2015 Plan	Non-Vested Units			Weighted Average Grant Date Fair Value
Non-vested at December 31, 2018 (Predecessor)		131,545		$	9.00
Granted		48,592			98.75
Vested		(180,137	)		33.21
Forfeited		—			—

Non-vested at July 16, 2019 (Successor)		—		$	—
Granted		—			—
Vested		—			—
Forfeited		—			—

Non-vested at July December 31, 2019 (Successor)		—		$	—

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2020

Commitments and Contingencies Disclosure [Abstract]

Schedule of Minimum Future Rental Payments

Minimum future rental payments are expected to be as follows for each of the years ending December 31 (in thousands):


2021	$	3,035
2022		2,673
2023		2,043
2024		2,338
2025		2,193
Thereafter		4,790

	$	17,072

Schedule of Estimated Annual Minimum Purchase Commitments

The estimated annual minimum purchase commitments under those agreements were as follows for each of the years ending December 31 (in thousands):


2021	$	5,396
2022		5,257
2023		5,098
2024		3,925
2025		2,370
Thereafter		—

	$	22,046

Long-term debt (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Debt Disclosure [Abstract]

Schedule of Long-term Debt

Long-term debt consisted of the following as of September 30, 2021 and December 31, 2020, respectively:


	September 30, 2021
(in thousands)	Principal		Unamortized debt issuance costs / financing costs			Total debt, net
2021 Term Loan	$	275,000	$	(2,737	)	$	272,263
Less: current portion of long-term debt							6,875

Long-term debt						$	265,388


	December 31, 2020
(in thousands)	Principal		Unamortized debt issuance costs / financing costs			Total debt, net
2019 Term Loan	$	444,375	$	(10,865	)	$	433,510
Paid in kind interest on 2019 Term Loan		10,412		—			10,412
2019 Delayed Draw Term Loan		17,955		—			17,955

Total debt	$	472,742	$	(10,865	)	$	461,877

Less: current portion of long-term debt							4,680

Long-term debt						$	457,197

Long-term debt consisted of the following as of December 31, 2020 and 2019, respectively (in thousands):


	December 31, 2020 (Successor)
	Principal		Unamortized debt issuance costs / financing costs			Total debt, net
2019 Term Note	$	444,375	$	(10,865	)	$	433,510
Paid in kind interest on 2019 Term Note		10,412					10,412
2019 Delayed Draw Term Note		17,955					17,955

Total debt	$	472,742	$	(10,865	)		461,877

Less: current portion of long-term debt							4,680

Long-term debt						$	457,197


	December 31, 2019 (Successor)
	Principal		Unamortized debt issuance costs / financing costs			Total debt, net
2019 Term Note	$	448,875	$	(12,567	)	$	436,308
Paid in kind interest on 2019 Term Note		3,041					3,041

Total debt	$	451,916	$	(12,567	)		439,349

Less: current portion of long-term debt							4,500

Long-term debt						$	434,849

Schedule of Future principal payments

Future principal payments as of December 31, 2020 are as follows (in thousands):


2021	$	4,680
2022		4,680
2023		4,680
2024		4,680
2025		4,680
Thereafter		449,342

	$	472,742

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

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Schedule of Reconciliation of Earnout Liabilities Measeured at Fair Value

Fair Value Measurements (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Fair Value Disclosures [Abstract]

The table below presents a reconciliation of earnout liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3):


(in thousands)	September 30, 2021			December 31, 2020
Balance at beginning of period	$	5,236		$	—
Additions		—			2,600
Net change in fair value and other adjustments		3,169			2,636
Payments		(1,500	)		—

Balance at end of period	$	6,905		$	5,236

The table below presents a reconciliation of earnout liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) (in thousands):


	Successor Company				Predecessor Company
	Year ended December 31, 2020		Period from July 16, 2019 to December 31, 2019		Period from January 1, 2019 to July 15, 2019
Balance at beginning of period	$	—	$	—	$	—
Additions		2,600		—		—
Net change in fair value and other adjustments		2,636		—		—
Payments		—		—		—

Balance at end of period	$	5,236	$	—	$	—

Schedule of Significant Unobservable Inputs Used Recurring Level 3 Fair Value Measurements

The valuation techniques and significant unobservable inputs used in recurring Level 3 fair value measurements were as follows as of September 30, 2021 and December 31, 2020:

(in thousands)

Fair Value

Valuation Technique

Unobservable Inputs

Discount Rate

Earn-out

liabilities

6,905

Income Approach (Real Option Method)

Discount rate

2.38

The valuation techniques and significant unobservable inputs used in recurring Level 3 fair value measurements were as follows as of December 31, 2020:

Fair Value

Valuation Technique

Unobservable Inputs

Discount Rate

Earn-out

liabilities

5,236

Income Approach (Real Option Method)

Discount rate

6.5

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2020

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Provision or Benefit

The components of the income tax provision are as follows (in thousands):


	Successor Company					Predecessor Company
	Year ended December 31, 2020			Period from July 16, 2019 to December 31, 2019		Period from January 1, 2019 to July 15, 2019
Current tax provision:
Federal	$	10		$	—	$	—
State		1			—		—
Foreign		—			—		—

Total current tax provision	$	11		$	—	$	—
Deferred tax provision:
Federal	$	58		$	—	$	—
State		(7	)		—		49
Foreign		—			—		—

Total deferred tax provision		51			—		49

Total provision	$	62		$	—	$	49

Schedule of Components of Deferred Tax Assets and Liabilities


	Successor Company
	December 31, 2020			December 31, 2019
Deferred tax assets:
Foreign, U.S. and state net operating loss carryforwards	$	1,517		$	212
Accrued Expenses		12			—
Unrealized foreign exchange losses		62			—

Subtotal		1,591			212
Less valuation allowance		(1,430	)		—

Total deferred tax assets		161			212

Net deferred tax assets	$	161		$	212

Schedule of Reconciliation of Income Tax Expense

A reconciliation of income tax expense computed at the statutory federal income tax rate to income taxes as reflected in the financial statements is as follows:


	Successor Company						Predecessor Company
	Year ended December 31, 2020			Period from July 16, 2019 to December 31, 2019			Period from January 16, 2019 to December 31, 2019
Federal income tax expense at statutory rate		21.00	%		21.00	%		0.00	%
State income tax, net of federal benefit		(0.14	)		0.04			0.00
Permanent differences		(0.98	)		(2.73	)		0.00
Research and development credit		0.00			0.00			0.00
Foreign rate differential		(0.01	)		0.00			0.00
Change in valuation allowance		0.60			0.00			0.00
Provision to return adjustments		0.46			0.00			0.00
Other		6.50			(0.04	)		0.37
Pass through income not subject to tax		(27.55	)		(18.27	)		0.01

Effective income tax rate		(0.12	%)		0.00	%		0.38	%

Loss Per Share (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Earnings Per Share [Abstract]

Schedule of Reconciliation of Earnings Per Share Basic and Diluted


(in thousands)	Nine Months Ended September 30, 2021
Numerator:
Net loss	$	(46,493	)
Less: Net loss attributable to Definitive OpCo before Reorganization Transactions		(33,343	)
Less: Net loss attributable to noncontrolling interests		(5,172	)

Net loss attributable to Definitive Healthcare Corp.	$	(7,978	)

Schedule Of Computation Of Earnings Per Share Basic And Diluted

The following table sets forth the computation of basic and diluted net loss per share of Class A Common Stock (per share amounts unaudited):


(in thousands, except number of shares and per share amounts)	Nine Months Ended September 30, 2021
Basic net loss per share attributable to common stockholders
Numerator:
Allocation of net loss attributable to Definitive Healthcare Corp.	$	(7,978	)
Weighted average number of shares of Class A outstanding		88,263,333

Net loss per share, basic and diluted	$	(0.09	)

The following table presents the calculation of basic and diluted net income/(loss) per unit (“EPU”) for the Company’s common units:


	Successor Company
	Year Ended December 31, 2020			Period from July 16, 2019 to December 31, 2019
Net loss	$	(51,157	)	$	(49,266	)
Weighted-average units used to compute basic and diluted net loss per unit		127,682,376			126,794,329

Net loss per unit, basic and diluted	$	(0.40	)	$	(0.39	)

Schedule of Potentially Dilutive Securities Excluded From The Computation Of Diluted Net Loss Per Share

The following table presents potentially dilutive securities excluded from the computation of diluted net loss per share for the period presented because their effect would have been anti-dilutive:


	Nine Months Ended September 30, 2021
Definitive OpCo Units		57,192,893

Segment and Geographic Data (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2021

Dec. 31, 2020

Segment Reporting [Abstract]

Summary Of Revenues By Geographic Area Presented Based Upon The Location Of The Customer

Revenues by geographic area presented based upon the location of the customer are as follows:


	For the Nine Months Ended September 30,
(in thousands)	2021		2020
United States	$	114,339	$	84,659
Rest of world		5,502		—

Total revenues	$	119,841	$	84,659

Revenues by geographic area presented based upon the location of the customer are as follows (in thousands):


	Successor Company				Predecessor Company
	Year Ended December 31, 2020		Period from July 16, 2019 to December 31, 2019		Period from January 1, 2019 to July 15, 2019
United States	$	117,755	$	40,045	$	45,458
Rest of world		562		—		—

Total revenues	$	118,317	$	40,045	$	45,458

Summary of Long-lived Assets by Geographical Region are Based on the Location of the Legal Entity that Owns the Assets

Long-lived assets by geographic area presented based upon the location of the assets are as follows:


(in thousands)	September 30, 2021		December 31, 2020
United States	$	4,311	$	3,120
Rest of world		386		128

Total long-lived assets	$	4,697	$	3,248


	Successor Company
	December 31, 2020		December 31, 2019
United States	$	3,120	$	2,558
Rest of world		128		—

Total long-lived assets	$	3,248	$	2,558

Description of Business - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
	Sep. 17, 2021	Sep. 30, 2021	Jun. 30, 2021
Issue of limited liability company interests	1,169,378
IPO [Member]
Proceeds from issuance of common stock	$ 452.8
Issue of limited liability company interests	14,222,222
Common Class A [Member]
Stock issued during period, shares		17,888,888
Proceeds from issuance of common stock			$ 5.8
Stock repurchased during period, shares		2,497,288
Common Class A [Member] \| IPO [Member]
Stock issued during period, shares	17,888,888
Shares issued, price per share	$ 27.00
Stock repurchased during period, shares	2,497,288

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 15, 2019	Dec. 31, 2020	Dec. 31, 2019	Sep. 30, 2021	Jul. 16, 2019	Jan. 01, 2019	Dec. 31, 2018
Significant Accounting Policies [Line Items]
Allowance for doubtful accounts		$ 856	$ 450	$ 853
Current portion of deferred contract costs	$ 1,906	2,947	769	5,359		$ 1,346
Deferred contract costs, net of current portion	3,829	5,952	2,116	9,388		2,973
Advertising expense	200	600	200
Unamortized debt issuance costs		10,900	12,600	3,500
Deferred costs		0
Uncertain tax positions		0	0
Increase (decrease) in partners capital due to adoption of accounting standards	5,415
Deferred revenue	38,278	61,200	46,125	$ 70,179	$ 32,000	31,458	$ 32,187
Unbilled revenues		$ 1,100
Cumulative Effect, Period of Adoption, Adjustment [Member]
Significant Accounting Policies [Line Items]
Current portion of deferred contract costs			(769)			1,346
Deferred contract costs, net of current portion			(2,116)			$ 2,973
Increase (decrease) in partners capital due to adoption of accounting standards	$ 5,400
Furniture and equipment [Member]
Significant Accounting Policies [Line Items]
Property plant and equipment, estimated useful life		5 years
Computers and software [Member]
Significant Accounting Policies [Line Items]
Property plant and equipment, estimated useful life		3 years
Property, Plant and Equipment [Member]
Significant Accounting Policies [Line Items]
Software development costs capitalized		$ 100	0		$ 0
Software and Software Development Costs [Member]
Significant Accounting Policies [Line Items]
Capitalized contract costs, amortization period		3 years
Leasehold Improvements [Member]
Significant Accounting Policies [Line Items]
Property plant and equipment lease term		Lesser of the asset life or lease term
Current Portion Of Deferred Contract Costs [Member]
Significant Accounting Policies [Line Items]
Capitalized contract costs		$ 8,900	$ 2,900
Deferred revenue		$ 4,300
Minimum [Member]
Significant Accounting Policies [Line Items]
Capitalized contract costs, amortization period		2 years
Minimum [Member] \| Customer relationships [Member]
Significant Accounting Policies [Line Items]
Finite lived intangible assets		14 years
Minimum [Member] \| Technology-Based Intangible Assets [Member]
Significant Accounting Policies [Line Items]
Finite lived intangible assets		7 years
Minimum [Member] \| Trademarks [Member]
Significant Accounting Policies [Line Items]
Finite lived intangible assets		17 years
Minimum [Member] \| Data [Member]
Significant Accounting Policies [Line Items]
Finite lived intangible assets		1 year
Maximum [Member]
Significant Accounting Policies [Line Items]
Capitalized contract costs, amortization period		4 years
Maximum [Member] \| Customer relationships [Member]
Significant Accounting Policies [Line Items]
Finite lived intangible assets		15 years
Maximum [Member] \| Technology-Based Intangible Assets [Member]
Significant Accounting Policies [Line Items]
Finite lived intangible assets		8 years
Maximum [Member] \| Trademarks [Member]
Significant Accounting Policies [Line Items]
Finite lived intangible assets		19 years
Maximum [Member] \| Data [Member]
Significant Accounting Policies [Line Items]
Finite lived intangible assets		4 years
Customer Concentration Risk [Member] \| Revenue Benchmark [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage		10.00%	10.00%

Summary of Significant Accounting Policies - Schedule Of Changes On Balance Sheet And Income Statement Due To The Adoption Of New Accounting pronouncements (Detail) - USD ($)	6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	May 24, 2021	Jan. 01, 2019
Consolidated Balance Sheet:
Accounts receivable, net	$ 25,021,000		$ 27,886,000		$ 33,108,000		$ 14,932,000
Current portion of deferred contract costs	769,000	$ 1,906,000	5,359,000		2,947,000		1,346,000
Total current assets	36,107,000		226,639,000		63,845,000	$ 100.00	35,176,000
Deferred contract costs, net of current portion	2,116,000	3,829,000	9,388,000		5,952,000		2,973,000
Total assets	1,721,154,000		1,869,799,000		1,745,359,000		87,061,000
Current portion of deferred revenue	45,977,000		69,811,000		61,060,000		32,187,000
Total current liabilities	69,917,000		103,037,000		88,723,000		36,676,000
Total liabilities	504,914,000		586,715,000		549,796,000		36,676,000
Members' capital	1,216,240,000						50,385,000
Total liabilities and members' capital	1,721,154,000		1,869,799,000		1,745,359,000		87,061,000
Income Statement [Abstract]
Revenue	40,045,000	45,458,000	119,841,000	$ 84,659,000	118,317,000
Total cost of revenue	13,282,000	5,328,000
Gross profit	26,763,000	40,130,000	90,050,000	62,505,000	87,849,000
Sales and marketing	10,814,000	16,039,000	39,003,000	23,542,000	34,332,000
Total operating expenses	57,825,000	27,097,000	102,857,000	69,998,000	102,294,000
Income (loss) from operations	(31,062,000)	13,033,000	(12,807,000)	(7,493,000)	(14,445,000)
Total other expense, net	(18,204,000)	(165,000)	(33,686,000)	(27,802,000)	(36,712,000)
Net income (loss)	(49,266,000)	12,868,000	$ (46,493,000)	$ (35,295,000)	$ (51,157,000)
Adjustments
Consolidated Balance Sheet:
Accounts receivable, net	(250,000)						367,000
Current portion of deferred contract costs	(769,000)						1,346,000
Total current assets	(1,019,000)						1,713,000
Deferred contract costs, net of current portion	(2,116,000)						2,973,000
Total assets	(3,135,000)						4,686,000
Current portion of deferred revenue	990,000						(729,000)
Total current liabilities	990,000						(729,000)
Total liabilities	990,000						(729,000)
Members' capital	(4,125,000)						5,415,000
Total liabilities and members' capital	(3,135,000)						4,686,000
Income Statement [Abstract]
Revenue	(66,000)	(79,000)
Total cost of revenue	0	0
Gross profit	(66,000)	(79,000)
Sales and marketing	2,885,000	1,416,000
Total operating expenses	2,885,000	1,416,000
Income (loss) from operations	(2,951,000)	(1,495,000)
Total other expense, net	0	0
Net income (loss)	(2,951,000)	(1,495,000)
As Adjusted
Consolidated Balance Sheet:
Accounts receivable, net	24,771,000						15,299,000
Current portion of deferred contract costs							1,346,000
Total current assets	35,088,000						36,889,000
Deferred contract costs, net of current portion							2,973,000
Total assets	1,718,019,000						91,747,000
Current portion of deferred revenue	46,967,000						31,458,000
Total current liabilities	70,907,000						35,947,000
Total liabilities	505,904,000						35,947,000
Members' capital	1,212,115,000						55,800,000
Total liabilities and members' capital	1,718,019,000						$ 91,747,000
Income Statement [Abstract]
Revenue	39,979,000	45,379,000
Total cost of revenue	13,282,000	5,328,000
Gross profit	26,697,000	40,051,000
Sales and marketing	13,699,000	17,455,000
Total operating expenses	60,710,000	28,513,000
Income (loss) from operations	(34,013,000)	11,538,000
Total other expense, net	(18,204,000)	(165,000)
Net income (loss)	$ (52,217,000)	$ 11,373,000

Business Combinations - Additional Information (Detail) - USD ($)					1 Months Ended	6 Months Ended		9 Months Ended		12 Months Ended
	Oct. 27, 2020	Dec. 02, 2019	Jul. 16, 2019	Jan. 15, 2019	Jul. 31, 2020	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2021	Dec. 31, 2017
Business Acquisition [Line Items]
Business Combination, rollover equity										$ 6,400,000
Fair value of the contingent consideration								$ 6,900,000		5,200,000
Business Combination, Recognized Identifiable Assets and Liabilities, Goodwill			$ 1,227,262,000			$ 1,233,173,000	$ 82,768,000	1,261,444,000		1,261,444,000	$ 1,233,173,000		$ 63,623,000
Business Combination, deferred revenue	$ 2,900,000		32,000,000.0
Business Combination, contingent consideration liability	2,600,000
Acquisition expenses								400,000		400,000
Revenue						40,045,000	45,458,000	119,841,000	$ 84,659,000	118,317,000
Net loss						(49,266,000)	12,868,000	(46,493,000)	(35,295,000)	(51,157,000)
Amortization of intangible assets						30,600,000	2,000,000.0	43,500,000	43,500,000
Interest expense						18,204,000	165,000	23,956,000	27,802,000	36,490,000
Debt current						4,500,000		6,875,000		4,680,000	4,500,000
Repayments debt financing			432,400,000							25,000,000
Consideration paid			1,122,400,000		$ 6,900,000
Revolving Credit Facility [Member]
Business Acquisition [Line Items]
Long-term Line of Credit			25,000,000.0
2019 Term Loan
Business Acquisition [Line Items]
Debt current			450,000,000.0
Long-term Line of Credit										454,800,000
Interest expense								$ 1,500,000	1,500,000
2019 Delayed Draw Term Loan
Business Acquisition [Line Items]
Debt current			$ 100,000,000.0
2019 Delayed Draw Term Loan \| Revolving Credit Facility [Member]
Business Acquisition [Line Items]
Long-term Line of Credit										$ 0
AIDH Finance Sub capital [Member]
Business Acquisition [Line Items]
Percentage of financing agreements, collateralized			100.00%
AIDH Buyer and Definitive Holdco [Member]
Business Acquisition [Line Items]
Total estimated consideration			$ 1,267,300,000
Business Combination, cash consideration			697,000,000.0
Business Combination, rollover equity			$ 570,300,000
Percentage of financing agreements, collateralized			100.00%
AIDH Buyer [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets and Liabilities, Goodwill			$ 1,144,500,000
Finite-Lived Intangible Assets [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets and Liabilities, Intangible asset			456,300,000
Customer relationships [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets and Liabilities, Intangible asset			340,800,000
Data [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets and Liabilities, Intangible asset			34,300,000
Technology-Based Intangible Assets [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets and Liabilities, Intangible asset			48,500,000
Trademarks [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets and Liabilities, Intangible asset			32,700,000
Minimum [Member] \| Customer relationships [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets, estimated remaining useful life										14 years
Minimum [Member] \| Data [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets, estimated remaining useful life										1 year
Minimum [Member] \| Technology-Based Intangible Assets [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets, estimated remaining useful life										7 years
Minimum [Member] \| Trademarks [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets, estimated remaining useful life										17 years
Maximum [Member] \| Customer relationships [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets, estimated remaining useful life										15 years
Maximum [Member] \| Data [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets, estimated remaining useful life										4 years
Maximum [Member] \| Technology-Based Intangible Assets [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets, estimated remaining useful life										8 years
Maximum [Member] \| Trademarks [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets, estimated remaining useful life										19 years
Monocl Holding Company
Business Acquisition [Line Items]
Total estimated consideration	46,346,000									$ 46,346,000
Business Combination, cash consideration	18,307,000									18,307,000
Business Combination, rollover equity	25,439,000									25,439,000
Business Combination, contingent consideration	2,600,000									2,600,000
Business Combination,estimated fair value	2,600,000
Business Combination, Recognized Identifiable Assets and Liabilities, Goodwill	28,271,000									28,271,000
Business Combination, Recognized Identifiable Assets and Liabilities, Intangible asset	18,900,000									18,900,000
Business Combination, deferred revenue	(2,884,000)									(2,884,000)
Acquisition expenses										400,000
Revenue										1,200,000
Net loss										1,600,000
Amortization of intangible assets										800,000	1,200,000
Interest expense										1,000,000.0	1,200,000
Business Combination, Recognized Identifiable Assets and Liabilities, accounts receivable	788,000									788,000
Business Combination, Recognized Identifiable Assets and Liabilities, Accounts Payable	(2,137,000)									$ (2,137,000)
Adjustments to amortization expense									600,000
Interest expense									$ 800,000
Monocl Holding Company \| Revolving Credit Facility [Member]
Business Acquisition [Line Items]
Business Combination, rollover equity	25,400,000
Business Combination, contingent consideration	15,000,000.0
Monocl Holding Company \| Customer relationships [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets and Liabilities, Intangible asset	11,900,000
Finite-lived Intangible Assets, fair value	$ 11,900,000
Finite-lived Intangible Assets, estimated remaining useful life	14 years
Finite-lived Intangible Assets, weighted average amortization period										15 years
Monocl Holding Company \| Data [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets and Liabilities, Intangible asset	$ 3,000,000.0
Finite-lived Intangible Assets, fair value	$ 3,000,000.0
Finite-lived Intangible Assets, estimated remaining useful life	3 years
Finite-lived Intangible Assets, weighted average amortization period										3 years
Monocl Holding Company \| Technology-Based Intangible Assets [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets and Liabilities, Intangible asset	$ 2,600,000
Finite-lived Intangible Assets, fair value	$ 2,600,000
Finite-lived Intangible Assets, estimated remaining useful life	8 years
Finite-lived Intangible Assets, weighted average amortization period										8 years
Monocl Holding Company \| Trademarks [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets and Liabilities, Intangible asset	$ 1,400,000
Finite-lived Intangible Assets, fair value	$ 1,400,000
Finite-lived Intangible Assets, estimated remaining useful life	19 years
Finite-lived Intangible Assets, weighted average amortization period										17 years
Monocl Holding Company \| Minimum [Member]
Business Acquisition [Line Items]
Total estimated consideration	$ 46,300,000
Monocl Holding Company \| Maximum [Member]
Business Acquisition [Line Items]
Total estimated consideration	$ 60,000,000.0
Definitive Holdco [Member]
Business Acquisition [Line Items]
Total estimated consideration			1,699,600,000							$ 1,699,612,000
Business Combination, cash consideration			1,129,300,000							1,129,346,000
Business Combination, rollover equity			570,300,000							570,266,000
Business Combination, Recognized Identifiable Assets and Liabilities, Goodwill			1,227,261,000				82,767,000
Business Combination, Recognized Identifiable Assets and Liabilities, Intangible asset			475,400,000				19,108,000
Business Combination, deferred revenue			32,000,000				38,278,000
Acquisition expenses			$ 4,004,000
Revenue						40,000,000.0	45,500,000			116,900,000
Net loss						$ 49,200,000	12,900,000			49,900,000
Amortization of intangible assets											33,400,000
Interest expense											21,000,000.0
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Long-term Line of Credit			$ 436,359,000
Fair value adjustments for deferred revenue											$ 1,400,000
Business Combination, Recognized Identifiable Assets and Liabilities, accounts receivable			12,747,000				12,747,000
Business Combination, Recognized Identifiable Assets and Liabilities, Accounts Payable			(15,200,000)				$ (5,477,000)
Definitive Holdco [Member] \| Customer relationships [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets, fair value			$ 358,000.0
Finite-lived Intangible Assets, estimated remaining useful life			15 years
Definitive Holdco [Member] \| Data [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets, fair value			$ 34,800,000
Finite-lived Intangible Assets, estimated remaining useful life			3 years
Definitive Holdco [Member] \| Technology-Based Intangible Assets [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets, fair value			$ 48,500,000
Finite-lived Intangible Assets, estimated remaining useful life			10 years
Definitive Holdco [Member] \| Trademarks [Member]
Business Acquisition [Line Items]
Finite-lived Intangible Assets, fair value			$ 34,100,000
Finite-lived Intangible Assets, estimated remaining useful life			22 years
HIMSS
Business Acquisition [Line Items]
Total estimated consideration				$ 29,800,000
Business Combination, Recognized Identifiable Assets and Liabilities, Goodwill				19,100,000
Business Combination, Recognized Identifiable Assets and Liabilities, Intangible asset				11,400,000
Business Combination, deferred revenue				2,000,000.0
Business Combination, Recognized Identifiable Assets and Liabilities, accounts receivable				$ 1,300,000
HSE
Business Acquisition [Line Items]
Total estimated consideration		$ 6,800,000
Business Combination, cash consideration		2,800,000
Business Combination, rollover equity		4,000,000.0
Business Combination, Recognized Identifiable Assets and Liabilities, Goodwill		5,900,000
Business Combination, Recognized Identifiable Assets and Liabilities, Intangible asset		1,200,000
Business Combination, deferred revenue		$ 300,000
Business Acquisition, Percentage of Voting Interests Acquired		100.00%
Business Combination, Recognized Identifiable Assets and Liabilities, Deferred Tax Assets		$ 200,000
Business Combination, Recognized Identifiable Assets and Liabilities, accounts receivable		100,000
Business Combination, Recognized Identifiable Assets and Liabilities, Accounts Payable		$ 300,000
AIDH [Member] \| Advent IX Funds [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
AIDH [Member] \| AIDH Holdings [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired			55.00%
AIDH [Member] \| Definitive Holdco [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired			45.00%
AIDH [Member] \| Definitive Healthcare Corp [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
AIDH [Member] \| AIDH Buyer [Member]
Business Acquisition [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Annual Recurring Revenue [Member] \| Minimum [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration, Range of Outcomes, Value, low										0		$ 0
Business Combination, Contingent Consideration, Range of Outcomes, Value, High										5,000,000.0		10,000,000.0
Annual Recurring Revenue [Member] \| Maximum [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration, Range of Outcomes, Value, low										8,500,000		12,000,000.0
Business Combination, Contingent Consideration, Range of Outcomes, Value, High										$ 9,500,000		$ 16,000,000.0

Business Combinations - Schedule of Consideration Transferred in Business Combination (Detail) - USD ($) $ in Thousands			12 Months Ended
	Oct. 27, 2020	Jul. 16, 2019	Dec. 31, 2020
Business Acquisition [Line Items]
Equity issuance			$ 6,400
Monocl Holding Company
Business Acquisition [Line Items]
Cash consideration	$ 18,307		18,307
Equity issuance	25,439		25,439
Contingent consideration	2,600		2,600
Purchase price	$ 46,346		46,346
Definitive Holdco
Business Acquisition [Line Items]
Cash consideration		$ 1,129,300	1,129,346
Equity issuance		570,300	570,266
Purchase price		$ 1,699,600	$ 1,699,612

Business Combinations - Schedule of Recognized Assets and Libailities Pertaining to Business Combination (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Oct. 27, 2020	Dec. 31, 2019	Jul. 16, 2019	Jul. 15, 2019	Jan. 01, 2019	Dec. 31, 2017
Preliminary allocation:
Deferred revenue			$ 2,900		$ 32,000
Goodwill	$ 1,261,444	$ 1,261,444		$ 1,233,173	1,227,262	$ 82,768		$ 63,623
Members' Capital				1,216,240			$ 50,385
Total liabilities and equity	$ 1,869,799	1,745,359		$ 1,721,154			$ 87,061
Monocl Holding Company
Preliminary allocation:
Cash		2,774	2,774
Accounts receivable		788	788
Prepaid expenses and other current assets		614	614
Property and equipment		20	20
Intangible assets		18,900	18,900
Accounts payable and accrued expenses		(2,137)	(2,137)
Deferred revenue		(2,884)	(2,884)
Total assets acquired and liabilities assumed		18,075	18,075
Goodwill		28,271	28,271
Purchase price		$ 46,346	$ 46,346
Definitive Holdco
Preliminary allocation:
Cash					17,058	17,058
Accounts receivable					12,747	12,747
Deferred contract costs						5,735
Prepaid expenses and other current assets					1,705	1,539
Other assets					14,638	49
Property and equipment					2,201	2,201
Intangible assets					475,400	19,108
Total assets					1,751,010	141,204
Accounts payable and accrued expenses					(15,200)	(5,477)
Deferred revenue					32,000	38,278
Goodwill					1,227,261	82,767
Purchase price					(1,699,612)
Term Loan					436,553
Total liabilities					483,753	43,755
Members' Capital					1,267,257	97,449
Total liabilities and equity					1,751,010	141,204
Definitive Holdco \| At Carrying Value [Member]
Preliminary allocation:
Cash						17,058
Accounts receivable						12,747
Deferred contract costs						5,735
Prepaid expenses and other current assets						1,539
Other assets						49
Property and equipment						2,201
Intangible assets						19,108
Accounts payable and accrued expenses						(5,477)
Deferred revenue						(38,278)
Total assets acquired and liabilities assumed						14,682
Goodwill						82,767
Definitive Holdco \| At Fair Value [Member]
Preliminary allocation:
Deferred contract costs					(5,735)	(5,735)
Prepaid expenses and other current assets					150	150
Intangible assets					456,292	456,292
Total assets						1,595,201
Accounts payable and accrued expenses					(684)	(684)
Deferred revenue					(6,278)	(6,278)
Total assets acquired and liabilities assumed					457,669
Goodwill					1,144,494	1,144,494
Total liabilities						6,962
Members' Capital						1,602,163
Total liabilities and equity						1,595,201
Definitive Holdco \| Debt Financing Or Finance Merger [Member]
Preliminary allocation:
Cash					17,058
Accounts receivable					12,747
Prepaid expenses and other current assets					1,689	16
Other assets					49	14,589
Property and equipment					2,201
Intangible assets					475,400
Total assets						14,605
Accounts payable and accrued expenses					(4,793)	(10,407)
Deferred revenue					(32,000)
Total assets acquired and liabilities assumed					472,351
Goodwill					1,227,261
Purchase price					$ 1,699,612
Term Loan						436,553
Total liabilities						446,960
Members' Capital						(432,355)
Total liabilities and equity						$ 14,605

Business Combinations - Schedule of Proforma Information Related to Business Combination (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Monocl Holding Company
Business Acquisition [Line Items]
Revenue	$ 91,750	$ 122,333	$ 87,157
Net loss	$ (43,763)	$ (58,350)	(97,134)
Definitive Holdco
Business Acquisition [Line Items]
Revenue			84,122
Net loss			$ (92,228)

Business Combinations - Schedule of Reconciliation of Purchase Price to the Capital Contribution (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Jul. 16, 2019
Business Acquisition [Line Items]
Transaction costs paid from proceeds	$ 400	$ 400
Definitive Holdco [Member]
Business Acquisition [Line Items]
Total purchase price			$ 1,699,612
Transaction costs paid from proceeds			4,004
Less Debt Financing			436,359
Capital Contribution			$ 1,267,257

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

Revenue - Schedule of Disaggregation of Revenue (Detail) - USD ($) $ in Thousands	6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 40,045	$ 45,458	$ 119,841	$ 84,659	$ 118,317
Platform Subscriptions [Member]
Disaggregation of Revenue [Line Items]
Revenue	39,872	45,244	118,545	83,814	117,080
Professional Services [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 173	$ 214	$ 1,296	$ 845	$ 1,237

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 280
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 280
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

Revenue - Schedule of Opening and Closing Balances of Receivables Deferred Contract Costs and Contract Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019	Jul. 16, 2019	Jul. 15, 2019	Jan. 01, 2019	Dec. 31, 2018
Revenue from Contract with Customer [Abstract]
Accounts receivable, net	$ 27,886	$ 33,108	$ 25,021	$ 12,747	$ 12,747	$ 15,299
Deferred contract costs	5,359	2,947	769		1,906	1,346
Long-term deferred contract costs	9,388	5,952	2,116		3,829	2,973
Deferred revenues	$ 70,179	$ 61,200	$ 46,125	$ 32,000	$ 38,278	$ 31,458	$ 32,187

Revenue - Schedule of Activity Impacting the Deferred Contract Costs (Detail) - USD ($) $ in Thousands	6 Months Ended		9 Months Ended	12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Dec. 31, 2020	Jan. 01, 2019
Schedule of Activity Impacting the Deferred Contract Costs [Line Items]
Balance at beginning of period	$ 5,735		$ 8,899	$ 2,885
Costs amortized	(189)	$ (824)	(3,195)	(1,670)
Additional amounts deferred	3,074	2,239	9,043	7,684
Acquisition-related adjustment	(5,735)
Balance at end of period	2,885	5,735	14,747	8,899
Classified as:
Current	769	1,906	5,359	2,947	$ 1,346
Non-current	2,116	3,829	9,388	5,952	2,973
Total deferred contract costs (deferred commissions)	2,885		$ 14,747	$ 8,899
Cumulative Effect, Period of Adoption, Adjustment [Member]
Schedule of Activity Impacting the Deferred Contract Costs [Line Items]
Adoption of ASC 606		$ 4,320
Classified as:
Current	(769)				1,346
Non-current	$ (2,116)				$ 2,973

Revenue - Schedule of Activity Impacting Deferred Revenue Balances (Detail) - USD ($) $ in Thousands	6 Months Ended		9 Months Ended	12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Dec. 31, 2020
Deferred Revenue Arrangement [Line Items]
Balance at beginning of period	$ 38,278	$ 32,187	$ 61,200	$ 46,125
Acquisition adjustment	(6,278)
Revenue recognized	(40,045)	(45,458)	(119,841)	(118,317)
Additional amounts deferred	54,170	52,278	128,820	133,392
Balance at end of period	$ 46,125	38,278	$ 70,179	$ 61,200
Cumulative Effect, Period of Adoption, Adjustment [Member]
Deferred Revenue Arrangement [Line Items]
Adoption of ASC 606		$ (729)

Revenue - Schedule of Revenue Remaining Performance Obligation (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Current	$ 128,653	$ 114,284	$ 82,291
Noncurrent	78,900	58,250	40,475
Total	$ 207,553	$ 172,534	$ 122,766

Revenue - Schedule of Revenue Remaining Performance Obligation (Parenthetical) (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Schedule of Revenue Remaining Performance Obligation [Line Items]
Revenue remaining performance obligation current	$ 128,653	$ 114,284	$ 82,291
Revenue remaining performance obligation noncurrent	78,900	58,250	40,475
Revenue remaining performance obligation	$ 207,553	172,534	122,766
Cumulative Effect, Period of Adoption, Adjustment [Member]
Schedule of Revenue Remaining Performance Obligation [Line Items]
Revenue remaining performance obligation current		121,623	90,237
Revenue remaining performance obligation noncurrent		51,368	32,957
Revenue remaining performance obligation		$ 172,991	$ 123,194

Accounts Receivable - Schedule of Accounts Receivable (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019	Jan. 01, 2019
Schedule Of Accounts Receivable [Line Items]
Accounts receivable	$ 28,739	$ 33,964	$ 25,471
Less: allowance for doubtful accounts	(853)	(856)	(450)
Accounts receivable, net	27,886	33,108	25,021	$ 14,932
Trade Accounts Receivable [Member]
Schedule Of Accounts Receivable [Line Items]
Accounts receivable	28,243	33,635	25,220
Unbilled Receivable [Member]
Schedule Of Accounts Receivable [Line Items]
Accounts receivable	$ 496	$ 329	$ 251

Property and Equipment - Schedule Of Property Plant And Equipment (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 8,801	$ 6,159	$ 4,317
Less: accumulated depreciation and amortization	(4,104)	(2,911)	(1,759)
Property and equipment, net	4,697	3,248	2,558
Computer Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	4,455	3,141	2,042
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	1,580	1,109	777
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	2,766	1,781	1,188
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Gross	$ 0	$ 128	$ 310

Property and Equipment - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Depreciation and amortization	$ 0.5	$ 0.4	$ 1.2	$ 0.8	$ 1.2

Goodwill and Intangible Assets - Schedule of Carrying Amounts of Goodwill and Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 499,286	$ 499,286	$ 476,998
Accumulated Amortization	(132,563)	(89,049)	(30,617)
Net Carrying Amount	366,723	410,237	446,381
Total goodwill and Intangible assets ,Gross	1,760,730	1,760,730	1,710,171
Total goodwill and Intangible assets and Accumulated Amortization	(132,563)	(89,049)	(30,617)
Total goodwill and Intangible assets , Net	1,628,167	1,671,681	1,679,554
Goodwill [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,261,444	1,261,444
Net Carrying Amount		1,261,444	1,233,173
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	370,030	370,030	358,130
Accumulated Amortization	(84,159)	(58,097)	(21,075)
Net Carrying Amount	285,871	311,933	337,055
Total goodwill and Intangible assets and Accumulated Amortization	(84,159)	(58,097)	(21,075)
Developed technologies [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	51,100	51,100	48,500
Accumulated Amortization	(15,648)	(10,218)	(3,206)
Net Carrying Amount	35,452	40,882	45,294
Total goodwill and Intangible assets and Accumulated Amortization	(15,648)	(10,218)	(3,206)
Tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	35,500	35,500	34,100
Accumulated Amortization	(4,510)	(2,952)	(928)
Net Carrying Amount	30,990	32,548	33,172
Total goodwill and Intangible assets and Accumulated Amortization	(4,510)	(2,952)	(928)
Data [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	42,656	42,656	36,268
Accumulated Amortization	(28,246)	(17,782)	(5,408)
Net Carrying Amount	14,410	24,874	30,860
Total goodwill and Intangible assets and Accumulated Amortization	$ (28,246)	$ (17,782)	$ (5,408)

Goodwill and Intangible Assets - Schedule of Estimated Intangible Amortization Expense (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2021		$ 58,143
2022		53,653
2023		45,709
2024		42,485
2025		38,296
Thereafter		171,951
Total	$ 366,723	$ 410,237	$ 446,381

Goodwill and Intangible Assets - Schedule of Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands		6 Months Ended		12 Months Ended
	Jul. 16, 2019	Dec. 31, 2019	Jul. 15, 2019	Dec. 31, 2020
Goodwill [Line Items]
Beginning ,Goodwill	$ 82,768	$ 82,768		$ 1,233,173
Ending, Goodwill	1,227,262	1,233,173	$ 82,768	1,261,444
HIMSS [Member]
Goodwill [Line Items]
Acquisition			19,145
Definitive Holdco [Member]
Goodwill [Line Items]
Beginning ,Goodwill	82,767	82,767
Acquisition	1,144,494
Ending, Goodwill	$ 1,227,261		$ 82,767
HSE [Member]
Goodwill [Line Items]
Acquisition		$ 5,911
Monocl [Member]
Goodwill [Line Items]
Acquisition				$ 28,271

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 30.6	$ 2.0	$ 43.5	$ 43.5
Cost of Sales [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets			$ 15.9	$ 14.3	$ 19.4
Asset Management Income [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets					$ 58.4

Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Payroll and payroll-related	$ 7,246	$ 7,792	$ 3,879
Accrued interest	233	5,365	4,215
Contingent consideration, current	6,905	1,500
Sales taxes	1,146	649	1,916
Deferred rent	112	583	17
Other	3,654	1,432	321
Accrued expenses and other current liabilities	$ 19,296	$ 17,321	$ 10,348

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Loss Contingencies [Line Items]
Sublease rental income						$ 0.1
Rent expense	$ 0.6	$ 0.5			$ 1.8
Selling, General and Administrative Expenses [Member]
Loss Contingencies [Line Items]
Rent expense			$ 2.1	$ 1.4

Commitments and Contingencies - Schedule of Minimum Future Rental Payments (Detail) $ in Thousands	Dec. 31, 2020 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2021	$ 3,035
2022	2,673
2023	2,043
2024	2,338
2025	2,193
Thereafter	4,790
Total	$ 17,072

Commitments and Contingencies - Schedule of Estimated Annual Minimum Purchase Commitments (Detail) $ in Thousands	Dec. 31, 2020 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2021	$ 5,396
2022	5,257
2023	5,098
2024	3,925
2025	2,370
Thereafter	0
Total	$ 22,046

Members' capital - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended		12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Dec. 31, 2020	May 24, 2021	Jul. 16, 2019	Dec. 31, 2018	Dec. 31, 2016
Total contributed capital	$ 3,997	$ 1,267,257	$ 31,804
Business Combination, Equity Interests Issued and Issuable			6,400
Common Stock, Shares, Issued				1
Common Stock, Shares Authorized				100			407,750
Common Stock, Shares, Outstanding				1
AIDH Buyer [Member]
Business Acquisition, Percentage of Voting Interests Acquired					100.00%
Capital Unit, Class A [Member]
Contributed capital units, issued	127,725,743
Price per share					$ 10
Total contributed capital	$ 1,267,300
Members' distribution payable	6,900
Business Combination, Equity Interests Issued and Issuable	$ 4,000		$ 25,400
Common Stock, Shares, Issued	127,125,435	7,750,000	130,245,990			7,750,000
Common Stock, Shares Authorized						7,750,000
Common Stock, Shares, Outstanding	127,125,435	268,853	130,245,990			7,750,000
Capital Unit, Class B [Member]
Common Stock, Shares, Issued		7,750,000
Common Stock, Shares Authorized						407,750
Common Stock, Shares, Outstanding		268,853				88,716
AIDH TopCo, LLC [Member]
Percentage of common stock issued and outstanding					100.00%

Equity-based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended		9 Months Ended			12 Months Ended
	Sep. 30, 2021	Jul. 31, 2019	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 15, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jul. 16, 2019
Share-based Payment Award, Vesting period		3 years
Share-based Payment Award, Shares granted					3,799,364	0				195,222
Share-based Payment Award, Number of shares vesting						0
Total unit-based compensation					$ 744	$ 5,807	$ 4,338		$ 1,330	$ 1,747
Unrecognized unit-based compensation expense										1,747
Capital Unit, Class B [Member]
Sharebased payment arrangement number of options vested							912,651
Share based compensation vested number of shares participation threshold after modification							578,217
2015 Incentive Equity Pool [Member]
Share-based Payment Award, Shares granted					0	48,592
Share-based Payment Award, Number of shares vesting					0	(180,137)
Equity Incentive Plan 2019 [Member]
Total unit-based compensation		$ 9,000
Sharebased compensation arrangements weighted average intrinsic value of shares forfeited		$ 27.00
Performance Shares [Member]
Share-based Payment Award, Shares granted								1,177,308
Total unit-based compensation					$ 0	$ 0				0
Unrecognized unit-based compensation expense										$ 4,300
Performance Shares [Member] \| 2019 Incentive Equity Pool [Member]
Share-based Payment Award, Shares granted					1,899,682					97,611
Share-based Payment Award, Number of shares vesting					0					0
Total unit-based compensation					$ 0	0				$ 0
Performance Shares [Member] \| 2015 Incentive Equity Pool [Member]
Total unit-based compensation					0	0				0
Performance Shares [Member] \| Equity Incentive Plan 2019 [Member]
Total unit-based compensation			$ 200
Time Based [Member]
Share-based Payment Award, Shares granted								1,477,323
Share-based Payment Award, Number of shares vesting	(74,049)							(437,731)
Total unit-based compensation					$ 744	5,807	$ 1,500		$ 1,300	1,747
Unrecognized unit-based compensation expense										$ 4,400
Weighted average remaining requisite period										2 years 7 months 6 days
Sharebased compensation arrangement unrecognized expense	$ 18,400		18,400				$ 18,400
Weighted-average period over which cost not yet recognized is expected to be recognized							2 years 9 months 18 days
Time Based [Member] \| 2019 Incentive Equity Pool [Member]
Share-based Payment Award, Shares granted					1,899,682					97,611
Share-based Payment Award, Number of shares vesting					0					(474,920)
Total unit-based compensation					$ 0	5,807				$ 0
Time Based [Member] \| 2015 Incentive Equity Pool [Member]
Total unit-based compensation					$ 744	$ 0				$ 1,747
Time Based Restricted Stock Units [Member] \| Equity Incentive Plan 2021 [Member]
Sharebased compensation arrangement unrecognized expense	$ 39,100		$ 39,100				$ 39,100
Sharebased compensation arrangement weighted average remaining term							4 years
Restricted Stock Units (RSUs) [Member] \| Equity Incentive Plan 2021 [Member]
Total unit-based compensation							$ 400
Common Class B [Member]
Share-based Payment Award, Number of shares vesting										474,920
Sharebased compensation arrangement plan modification incremental costs		$ 72,149					$ 1,900
Common Class B [Member] \| 2019 Incentive Equity Pool [Member]
Shares reserved for future issuance		8,088,877
Common Class B [Member] \| 2015 Incentive Equity Pool [Member]
Shares reserved for future issuance													407,750
Common Class B [Member] \| Performance Shares [Member]
Sharebased compensation arrangement accelerated vesting number		48,099
Common Class B [Member] \| Time Based [Member]
Sharebased compensation arrangement accelerated vesting number		24,049
Class B Series A Units [Member]
Share-based Payment Award, Number of shares vesting												1
ClassB Series B Units [Member]
Share-based Payment Award, Number of shares vesting												73,418
ClassB Series C Units [Member]
Share-based Payment Award, Number of shares vesting												57,105
Class B Series D Units [Member]
Share-based Payment Award, Number of shares vesting												89,737
Class B Series E Units [Member]
Share-based Payment Award, Number of shares vesting											48,592
Common Class A [Member]
Total unit-based compensation				$ 300
Common Class A [Member] \| Time Based Restricted Stock Units [Member] \| Equity Incentive Plan 2021 [Member]
Common stock available for awards							8,989,039
Sharebased compensation arrangment Restrcited Stock units granted							1,464,681

Equity-based Compensation - Schedule of allocation of share based compensation costs by plan (Detail) - USD ($) $ in Thousands	6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Allocated share based compensation expense	$ 744	$ 5,807	$ 4,338	$ 1,330	$ 1,747
Cost of revenue
Allocated share based compensation expense	28	256	79	46	62
Sales and marketing
Allocated share based compensation expense	213	4,252	567	380	473
Product development
Allocated share based compensation expense	126	665	341	267	356
General and administrative
Allocated share based compensation expense	377	634	3,351	637	856
Time Based [Member]
Allocated share based compensation expense	744	5,807	$ 1,500	$ 1,300	1,747
Performance Shares [Member]
Allocated share based compensation expense	0	0			0
2019 Incentive Equity Pool [Member] \| Time Based [Member]
Allocated share based compensation expense	0	5,807			0
2019 Incentive Equity Pool [Member] \| Performance Shares [Member]
Allocated share based compensation expense	0	0			0
2015 Incentive Equity Pool [Member] \| Time Based [Member]
Allocated share based compensation expense	744	0			1,747
2015 Incentive Equity Pool [Member] \| Performance Shares [Member]
Allocated share based compensation expense	$ 0	$ 0			$ 0

Equity-based Compensation - Summary of Nonvested Restricted Stock Shares Activity (Detail) - $ / shares	1 Months Ended	6 Months Ended		9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2019	Jul. 15, 2019	Sep. 15, 2021	Dec. 31, 2020	Dec. 31, 2019
Non-Vested Units, Beginning balance		0	0			0
Non-Vested Units, granted		3,799,364	0		195,222
Non-Vested Units, vested			0
Non-Vested Units, Ending balance			0
Weighted Average Grant Date Fair Value, Beginning balance		$ 0	$ 0			$ 0
Weighted Average Grant Date Fair Value, granted			0
Weighted Average Grant Date Fair Value, vested			0
Weighted Average Grant Date Fair Value, Ending balance			$ 0
Time Based [Member]
Non-Vested Units, Beginning balance	2,430,542			1,404,720
Non-Vested Units, Effect of Reorganization Transactions and IPO	(1,165,679)
Non-Vested Units, Performance-based units exchanged for time-based units	1,681,199
Non-Vested Units, granted				1,477,323
Non-Vested Units, vested	(74,049)			(437,731)
Non-Vested Units, forfeited	(72,149)			(13,770)
Non-Vested Units, Ending balance	2,799,864			2,430,542	1,404,720
Weighted Average Grant Date Fair Value, Beginning balance	$ 2.29			$ 3.65
Weighted Average Grant Date Fair Value, Effect of Reorganization Transactions and IPO	2.08
Weighted Average Grant Date Fair Value, Performance-based units exchanged for time-based units	1.74
Weighted Average Grant Date Fair Value, granted				1.41
Weighted Average Grant Date Fair Value, vested	2.75			3.64
Weighted Average Grant Date Fair Value, forfeited	2.78			3.65
Weighted Average Grant Date Fair Value, Ending balance	$ 2.02			$ 2.29	$ 3.65
Performance Shares [Member]
Non-Vested Units, Beginning balance	2,999,370			1,840,423
Non-Vested Units, Effect of Reorganization Transactions and IPO	(1,318,171)
Non-Vested Units, Performance-based units exchanged for time-based units	(1,681,199)
Non-Vested Units, granted				1,177,308
Non-Vested Units, forfeited				(18,361)
Non-Vested Units, Ending balance				2,999,370	1,840,423
Weighted Average Grant Date Fair Value, Beginning balance	$ 1.59			$ 2.35
Weighted Average Grant Date Fair Value, Effect of Reorganization Transactions and IPO	1.39
Weighted Average Grant Date Fair Value, Performance-based units exchanged for time-based units	$ 1.74
Weighted Average Grant Date Fair Value, granted				0.41
Weighted Average Grant Date Fair Value, forfeited				2.35
Weighted Average Grant Date Fair Value, Ending balance				$ 1.59	$ 2.35
2019 Incentive Equity Pool [Member] \| Time Based [Member]
Non-Vested Units, Beginning balance				1,404,720	1,899,682
Non-Vested Units, granted		1,899,682			97,611
Non-Vested Units, vested		0			(474,920)
Non-Vested Units, forfeited		0			(117,653)
Non-Vested Units, Ending balance		1,899,682			1,404,720	1,899,682
Weighted Average Grant Date Fair Value, Beginning balance				$ 3.65	$ 3.65
Weighted Average Grant Date Fair Value, granted		$ 3.65			3.65
Weighted Average Grant Date Fair Value, vested		0			3.65
Weighted Average Grant Date Fair Value, forfeited		0			3.65
Weighted Average Grant Date Fair Value, Ending balance		$ 3.65			$ 3.65	$ 3.65
2019 Incentive Equity Pool [Member] \| Performance Shares [Member]
Non-Vested Units, Beginning balance				1,840,423	1,899,682
Non-Vested Units, granted		1,899,682			97,611
Non-Vested Units, vested		0			0
Non-Vested Units, forfeited		0			(156,870)
Non-Vested Units, Ending balance		1,899,682			1,840,423	1,899,682
Weighted Average Grant Date Fair Value, Beginning balance				$ 2.35	$ 2.35
Weighted Average Grant Date Fair Value, granted		$ 2.35			2.35
Weighted Average Grant Date Fair Value, vested		0			0
Weighted Average Grant Date Fair Value, forfeited		0			2.35
Weighted Average Grant Date Fair Value, Ending balance		$ 2.35			$ 2.35	$ 2.35
2015 Incentive Equity Pool [Member]
Non-Vested Units, Beginning balance		0	131,545		0	131,545
Non-Vested Units, granted		0	48,592
Non-Vested Units, vested		0	(180,137)
Non-Vested Units, forfeited		0	0
Non-Vested Units, Ending balance		0	0			0
Weighted Average Grant Date Fair Value, Beginning balance		$ 0	$ 9.00		$ 0	$ 9.00
Weighted Average Grant Date Fair Value, granted		0	98.75
Weighted Average Grant Date Fair Value, vested		0	33.21
Weighted Average Grant Date Fair Value, forfeited		0	0
Weighted Average Grant Date Fair Value, Ending balance		$ 0	$ 0			$ 0

Equity-based Compensation - Summary of Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (Detail)			6 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2019	Dec. 31, 2020
Expected option term	5 years 6 months		5 years 6 months	5 years 6 months
Risk-free rate of return	1.73%		1.73%	1.73%
Applied volatility	35.00%	30.00%	35.00%	35.00%
Maximum [Member]
Expected option term		8 months 12 days
Risk-free rate of return		0.06%
Minimum [Member]
Expected option term		3 months 18 days
Risk-free rate of return		0.01%

Equity-Based Compensation - Schedule Of Unvested Restricted Stock Options (Detail) - Equity Incentive Plan 2021 [Member]	9 Months Ended
	Sep. 30, 2021 $ / shares shares
Time Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Units, Unvested at beginning of period \| shares	0
Restricted Stock Units, Granted \| shares	1,300,328
Restricted Stock Units, Vested \| shares	0
Restricted Stock Units, Forfeited \| shares	(2,656)
Restricted Stock Units, Unvested at end of period \| shares	1,297,672
Weighted Average Grant Date Fair Value, Unvested at beginning of period \| $ / shares	$ 0
Weighted Average Grant Date Fair Value, Granted \| $ / shares	27.00
Weighted Average Grant Date Fair Value, Vested \| $ / shares	0
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	27.00
Weighted Average Grant Date Fair Value, Unvested at end of period \| $ / shares	$ 27.00
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock Units, Unvested at beginning of period \| shares	0
Restricted Stock Units, Granted \| shares	164,353
Restricted Stock Units, Vested \| shares	0
Restricted Stock Units, Forfeited \| shares	0
Restricted Stock Units, Unvested at end of period \| shares	164,353
Weighted Average Grant Date Fair Value, Unvested at beginning of period \| $ / shares	$ 0
Weighted Average Grant Date Fair Value, Granted \| $ / shares	27.00
Weighted Average Grant Date Fair Value, Vested \| $ / shares	0
Weighted Average Grant Date Fair Value, Forfeited \| $ / shares	0
Weighted Average Grant Date Fair Value, Unvested at end of period \| $ / shares	$ 27.00

Retirement Plan - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Retirement Benefits [Abstract]
Employer Contribution Amount	$ 0.5	$ 0.6	$ 1.7	$ 1.1	$ 1.6

Long-term debt - Schedule of Long-term Debt Instruments (Detail) - USD ($) $ in Thousands	Sep. 30, 2021	Sep. 17, 2021	Dec. 31, 2020	Dec. 31, 2019	Jul. 16, 2019
Debt Instrument [Line Items]
Principal			$ 472,742	$ 451,916
Unamortized debt issuance costs / financing costs			(10,865)	(12,567)
Total debt, net			461,877	439,349
Less: current portion of long-term debt	$ 6,875		4,680	4,500
Long-term debt	265,388		457,197	434,849
2019 Term Loan
Debt Instrument [Line Items]
Principal	450,000	$ 442,100	444,375	448,875	$ 450,000
Unamortized debt issuance costs / financing costs			(10,865)	(12,567)
Total debt, net			433,510	436,308
Paid in kind interest on 2019 Term Note
Debt Instrument [Line Items]
Principal			10,412	3,041	100,000
Total debt, net			10,412	$ 3,041
2019 Delayed Draw Term Loan
Debt Instrument [Line Items]
Principal			17,955		$ 100,000
Total debt, net			$ 17,955
2021 Term Loan
Debt Instrument [Line Items]
Principal	275,000
Unamortized debt issuance costs / financing costs	(2,737)
Total debt, net	$ 272,263

Long-term debt - Schedule of Future principal payments (Detail) $ in Thousands	Dec. 31, 2020 USD ($)
Maturities of Long-term Debt [Abstract]
2021	$ 4,680
2022	4,680
2023	4,680
2024	4,680
2025	4,680
Thereafter	449,342
Long-term Debt	$ 472,742

Long-term debt - Additional Information (Detail) $ in Thousands				6 Months Ended		9 Months Ended		12 Months Ended
	Sep. 17, 2021 USD ($)	Jul. 16, 2019 USD ($)	Jan. 08, 2019 USD ($)	Dec. 31, 2019 USD ($)	Jul. 15, 2019 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Oct. 01, 2020 USD ($)
Debt Instrument [Line Items]
Debt instrument face amount				$ 451,916				$ 472,742	$ 451,916	$ 451,916
Long-term Debt				439,349				461,877	439,349	439,349
Payments of Financing Costs									12,500
Amortization of Debt Issuance Costs and Discounts					$ 0					900
Unamortized financing costs				600				500	600	600
Debt, paid in kind interest				3,041			$ 7,371	7,371
Loss on extinguishment of debt						$ (9,843)
Unamortized debt issuance costs				12,600		3,500		10,900	12,600	12,600
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit		$ 25,000
Payments of Financing Costs									1,600
2019 Term Loan
Debt Instrument [Line Items]
Debt instrument face amount	$ 442,100	$ 450,000		$ 448,875		$ 450,000		444,375	$ 448,875	$ 448,875
Debt Instrument, Maturity Date		Jul. 16, 2026				Jul. 16, 2026
Debt Instrument, Unamortized Discount		$ 11,300				$ 14,100		$ 13,400
Debt Instrument, Interest Rate, Stated Percentage	6.25%			7.404%				6.50%	7.404%	7.404%
Debt Instrument, Frequency of Periodic Payment									Quarterly
Repayments of Debt									$ 1,100
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid				$ 419,600					419,600	$ 419,600
Long-term Debt				436,308				$ 433,510	436,308	436,308
Proceeds from debt	$ 275,000
Line of credit								454,800
Debt, paid in kind interest	10,400					100,000		10,400
Interest payable on debt	4,200
Proceeds from initial public offering	199,600
Loss on extinguishment of debt	9,900
Line of credit periodic payment						1,100
Repayment of debt						419,600
Interest expense, debt						1,500	$ 1,500
2019 Term Loan \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount											$ 700
Unamortized financing costs				500					500	500
2019 Term Loan \| Maximum [Member]
Debt Instrument [Line Items]
Debt instrument face amount		100,000
Paid in kind interest on 2019 Term Note
Debt Instrument [Line Items]
Debt instrument face amount		100,000		$ 3,041				10,412	$ 3,041	$ 3,041
Debt Instrument, Interest Rate, Stated Percentage				8.404%					8.404%	8.404%
Long-term Debt				$ 3,041				10,412	$ 3,041	$ 3,041
Paid in kind interest on 2019 Term Note \| Maximum [Member]
Debt Instrument [Line Items]
Debt instrument face amount		450,000
2019 Delayed Draw Term Loan
Debt Instrument [Line Items]
Debt instrument face amount		$ 100,000						17,955
Debt Instrument, Maturity Date		Jul. 16, 2026
Debt Instrument, Unamortized Discount		$ 1,300						$ 1,300			$ 200
Debt Instrument, Interest Rate, Stated Percentage		6.50%
Debt Instrument, Frequency of Periodic Payment		quarterly						quarterly
Long-term Debt								$ 17,955
Proceeds from debt								18,000
Debt Instruments Quarterly principal payments Rate		0.25
Line of Credit drawn		$ 18,000		25,000
Debt instrument accrued interest	17,900
2019 Delayed Draw Term Loan \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit drawn						$ 0
Line of credit								0
Line of credit expiration date						Sep. 17, 2021
Line of Credit
Debt Instrument [Line Items]
Debt Instrument, Maturity Date			Jan. 08, 2021
Debt Instrument, Frequency of Periodic Payment									Quarterly
Debt Instruments Quarterly principal payments Rate									0.3
Line of credit facility maximum borrowing capacity			$ 15,000
Line of Credit drawn									$ 13,000
Repayments of Lines of Credit									13,000
Line of Credit \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Maturity Date		Jul. 16, 2024
Debt Instrument, Frequency of Periodic Payment		Quarterly
Debt Instruments Quarterly principal payments Rate		0.5
Line of credit facility maximum borrowing capacity		$ 25,000
Line of Credit drawn								25,000
Line of credit				0				0	0	0
2021 Term Loan
Debt Instrument [Line Items]
Debt instrument face amount						$ 275,000
Debt Instrument, Interest Rate, Stated Percentage						2.37%
Debt Instrument, Frequency of Periodic Payment						quarterly
Long-term Debt						$ 272,263
Proceeds from debt	$ 474,600
Line of credit facility maximum borrowing capacity						275,000
Line of credit						275,000
Line of credit facility annual principal amount						220,000
Unamortized debt issuance costs						2,800
2021 Term Loan \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument face amount		$ 25,000
Line of credit facility maximum borrowing capacity						75,000
Line of credit						0
Unamortized debt issuance costs						$ 800
2021 Term Loan \| Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage						5.00%
Line of credit facility unused capacity commitment fee percentage						0.30%
2021 Term Loan \| Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage						2.50%
Line of credit facility unused capacity commitment fee percentage						0.25%
Principal Payments [Member]
Debt Instrument [Line Items]
Debt instrument face amount				350,000					350,000	350,000
2020 Term Loan
Debt Instrument [Line Items]
Debt instrument face amount								350,000
Long-term Debt				451,900				454,800	451,900	451,900
Paid in kind interest on 2019 Term Note
Debt Instrument [Line Items]
Debt instrument face amount				100,000				100,000	100,000	100,000
Long-term Debt				3,000				10,400	3,000	3,000
2019 Delayed Draw Term Loan
Debt Instrument [Line Items]
Long-term Debt				$ 0				$ 18,000	$ 0	$ 0

Fair Value Measurements - Schedule of Significant Unobservable Inputs Used Recurring Level 3 Fair Value Measurements (Detail) - Fair Value, Inputs, Level 3 [Member] - Earnout Liability [Member] $ in Thousands	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 6,905	$ 5,236
Discount Rate		6.5
Income Approach Method [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value	$ 6,905	$ 6,905
Measurement Input, Discount Rate [Member] \| Income Approach Method [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Discount Rate	2.38	2.38

Fair Value Measurements - Schedule of Reconciliation of Earnout Liabilities Measeured at Fair Value (Detail) - Fair Value, Inputs, Level 3 [Member] - Earnout Liability [Member] - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance at beginning of period	$ 5,236
Additions		2,600
Net change in fair value and other adjustments	3,169	2,636
Payments	(1,500)
Balance at end of period	$ 6,905	$ 5,236

Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Thousands		9 Months Ended	12 Months Ended
	Apr. 30, 2021	Sep. 30, 2021	Dec. 31, 2020
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Payment of contingent consideration		$ 1,500
Earnout Liability [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of contingent consideration		6,900	$ 5,200
Fair value of contingent consideration current		6,900	1,500
Fair value of contingent consideration noncurrent		0	3,700
Payment of contingent consideration	$ 1,500
Maximum [Member] \| Earnout Liability [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Earnout potential payments		10,000	15,000
Minimum [Member] \| Earnout Liability [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Earnout potential payments		$ 0	$ 0

Organization - Additional Information (Detail)	May 24, 2021
Definitive Healthcare Corp [Member]
Entity Incorporation, Date of Incorporation	May 05, 2021

Stockholders' Equity and Members' Equity - Schedule Of Common Stock Units Authorized Issued And Outstanding (Detail) - shares	Dec. 31, 2020	Dec. 31, 2019
Common Class A [Member]
Stockholders Equity And Members Deficit [Line Items]
Authorized, issued and outstanding Class A units	130,245,990
Authorized Class B units	130,245,990	127,125,435
Issued Class B units	130,245,990	127,125,435
Outstanding Class B units (Vested Class B units)	130,245,990	127,125,435
Common Class B [Member]
Stockholders Equity And Members Deficit [Line Items]
Authorized Class B units	8,088,877	8,088,877
Issued Class B units	3,720,063	3,799,364
Outstanding Class B units (Vested Class B units)	474,920	0

Stockholders' Equity and Members' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2021	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	May 24, 2021	Dec. 31, 2016
Class of Stock [Line Items]
Allocated share based compensation expense		$ 744	$ 5,807	$ 4,338	$ 1,330	$ 1,747
Common stock shares authorized							100	407,750
Common stock par or stated value per share							$ 0.01
Common stock shares issued							1
Common Class A [Member]
Class of Stock [Line Items]
Stock issued during period shares for services	363,516
Procceds from issuance of common stock	$ 5,800
Capital contribution from common shares issued	5,500
Allocated share based compensation expense	$ 300

Income Taxes - Schedule of Reconciliation of Income Tax Expense (Detail)	6 Months Ended	9 Months Ended		12 Months Ended
	Dec. 31, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Federal income tax expense at statutory rate	21.00%			21.00%	0.00%
State income tax, net of federal benefit	0.04%			(0.14%)	0.00%
Permanent differences	(2.73%)			(0.98%)	0.00%
Research and development credit	0.00%			0.00%	0.00%
Foreign rate differential	0.00%			(0.01%)	0.00%
Change in valuation allowance	0.00%			0.60%	0.00%
Provision to return adjustments	0.00%			0.46%	0.00%
Other	(0.04%)			6.50%	0.37%
Pass through income not subject to tax	(18.27%)			(27.55%)	0.01%
Effective income tax rate	0.00%	0.30%	0.00%	(0.12%)	0.38%

Income Taxes - Schedule of Components of Income Tax Provision or Benefit (Detail) - USD ($) $ in Thousands	6 Months Ended		12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Current tax provision: Federal			$ 10
Current tax provision: State			1
Total current tax provision			11
Deferred tax provision: Federal			58
Deferred tax provision: State		$ 49	(7)
Total deferred tax provision		49	51
Total provision		$ 49	$ 62

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

Income Taxes - Schedule of Components of Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Foreign, U.S. and state net operating loss carryforwards	$ 1,517	$ 212
Accrued Expenses	12
Unrealized foreign exchange losses	62
Subtotal	1,591	212
Less valuation allowance	(1,430)
Total deferred tax assets	161	212
Net deferred tax assets	$ 161	$ 212

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	6 Months Ended	9 Months Ended		12 Months Ended
	Dec. 31, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	$ 212			$ 1,517	$ 212
Valuation allowance				1,430
Increase in valuation allowance				$ 1,400
Change in ownership interest				50.00%
Uncertain tax positions		$ 0		$ 0
Effective income tax rate	0.00%	0.30%	0.00%	(0.12%)	0.38%
Income tax examination liability under tax receivable agreement		$ 146,100
Effective income tax rate, tax settlements		85.00%
Effective income tax rate, contingencies		15.00%
Deferred tax liability		$ 71,300
Domestic Tax Authority [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	$ 1,100			$ 600	$ 1,100
State and Local Jurisdiction [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards	$ 1,500			600	$ 1,500
Foreign Tax Authority [Member]
Income Tax Disclosure [Line Items]
Net operating loss carryforwards				6,900
Valuation allowance				$ 1,400

Loss Per Share - Additional Information (Detail) - shares	6 Months Ended	12 Months Ended
	Jul. 15, 2019	Dec. 31, 2020
Schedule Of Earnings Per Share Basic And Diluted [Line Items]
Share-based compensation arrangement, number of units vested	0
Common Class B [Member]
Schedule Of Earnings Per Share Basic And Diluted [Line Items]
Share-based compensation arrangement, number of units vested		474,920

Loss Per Share - Schedule of Reconciliation of Earnings Per Share Basic and Diluted (Detail) - USD ($) $ in Thousands	6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Numerator
Less: Net loss attributable to noncontrolling interests			$ (5,172)
Net loss attributable to Definitive Healthcare Corp.	$ (49,266)	$ 12,868	(46,493)	$ (35,295)	$ (51,157)
Common Class A [Member]
Numerator
Net loss			(46,493)
Less: Net loss attributable to Definitive OpCo before Reorganization Transactions			(33,343)
Less: Net loss attributable to noncontrolling interests			(5,172)
Net loss attributable to Definitive Healthcare Corp.			$ (7,978)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Schedule Of Earnings Per Share Basic And Diluted [Line Items]

Loss Per Share - Schedule Of Computation Of Earnings Per Share Basic And Diluted (Detail) - USD ($)
$ / shares in Units, $ in Thousands

6 Months Ended

9 Months Ended

12 Months Ended

Dec. 31, 2019

Jul. 15, 2019

Sep. 30, 2021

Sep. 30, 2020

Dec. 31, 2020

Net loss

$ (49,266)

$ 12,868

$ (46,493)

$ (35,295)

$ (51,157)

Weighted average number of shares of Class A outstanding

126,794,329

88,263,333

^[1]

127,682,376

Net loss per share, basic and diluted

$ (0.39)

$ (0.40)

Common Class A [Member]

Schedule Of Earnings Per Share Basic And Diluted [Line Items]

Net loss

$ (7,978)

Weighted average number of shares of Class A outstanding

88,263,333,000

Net loss per share, basic and diluted

$ (0.09)

[1]

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

Loss Per Share - Schedule of Potentially Dilutive Securities Excluded From The Computation Of Diluted Net Loss Per Share (Detail)	9 Months Ended
	Sep. 30, 2021 shares
Definitive OpCo Units [Member]
Antidilutive securities excluded from computation of earnings per share, amount	57,192,893

Segment and Geographic Data - Summary Of Revenues By Geographic Area Presented Based Upon The Location Of The Customer (Detail) - USD ($) $ in Thousands	6 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2019	Jul. 15, 2019	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	$ 40,045	$ 45,458	$ 119,841	$ 84,659	$ 118,317
United States [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue	$ 40,045	$ 45,458	114,339	$ 84,659	117,755
Rest of World [Member]
Segment Reporting, Revenue Reconciling Item [Line Items]
Revenue			$ 5,502		$ 562

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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