Partners' Capital Account, Contributions Members' contributions Entity Address, City or Town Entity Address, City or Town Repurchase of share Stock Repurchased During Period, Value Entity Ex Transition Period Entity Ex Transition Period Fair Value Disclosures [Abstract] Net loss per share of Class A common stock: Earnings Per Share [Abstract] Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Intangible Assets, Net (Including Goodwill) Net Carrying Amount Issuance of Class A common stock in IPO, net of costs Stock Issued During Period, Value, New Issues Cash flows used in financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Short-term Investments Cash, Cash Equivalents, and Short-Term Investments [Text Block] Pre IPO owners amount cash savings Pre IPO owners amount cash savings Pre IPO owners amount cash savings Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration] Investment in equity securities Equity investment. Equity Investment Business combination contingent consideration earnout payment. Business Combination Contingent Consideration Earnout Payment Earn out payments Basic net loss per share attributable to common stockholders [Abstract] Basic net loss per share attributable to common stockholders [Abstract] Line of credit Long-term Line of Credit, Total Long-Term Line of Credit Credit facilities amount outstanding Amendment Flag Amendment Flag Investment Investment Owned, at Cost Fair value of the contingent consideration Contingent Consideration Classified as Equity, Fair Value Disclosure Sales and Marketing Selling and Marketing Expense [Member] Capital expenditures included in accrued expenses Capital expenditures included in accrued expenses Capital Expenditures Incurred but Not yet Paid Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Accounts and Financing Receivable, after Allowance for Credit Loss, Current [Abstract] Finite-Lived Intangible Assets, Accumulated Amortization Accumulated Amortization Cost of Revenue Cost of Sales [Member] Goodwill [Member] Goodwill [Member] Executive Officer [Member] Executive Officer Goodwill, Ending Balance Goodwill, Beginning Balance Goodwill, Total Goodwill Goodwill Deferred contract costs. Deferred Contract Costs Deferred contract costs Operating lease right-of-use assets, net Operating lease right of use asset Operating Lease, Right-of-Use Asset Reorganization transactions. Reorganization Transactions [Member] Benefit from remaining of any tax benefits Benefit from remaining of any tax benefits Benefit from remaining of any tax benefits Tax Receivable Agreement Liability Tax receivable agreement liability. Tax receivable agreement liability Revenue, Remaining Performance Obligation, Percentage Percentage of revenue expected to recognize Potential payouts range, Low Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low Document Quarterly Report Document Quarterly Report Schedule of Long-Term Debt Instruments [Table] Debt Instrument [Table] Purchase Option [Member] Purchase Option Member Purchase option. Initial cash investment in December 2021 Asset Acquisition Consideration Transferred Initial Cash Investment Asset acquisition consideration transferred initial cash investment. Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Foreign Currency Translation Adjustment Employee Share-Based Payment Arrangement, Employee [Member] Imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Cash and Cash Equivalents [Domain] Product Development [Member] Product Development [Member] Statement [Table] Statement [Table] Operating lease liabilities, net of current portion Operating Lease, Liability, Noncurrent Proceeds to repay outstanding debt Proceeds from (Repayments of) Long-Term Debt and Capital Securities Proceeds from (Repayments of) Long-term Debt and Capital Securities, Total Performance-Based RSUs Performance Based RSUs [Member] Performance Based RSUs [Member]. Paid in Kind Interest on 2019 Term Loan [Member] Paid In Kind Interest On Two Thousand Nineteen Term Loan [Member] Paid In Kind Interest On Two Thousand Nineteen Term Loan. Operating cash flows Operating Lease, Payments Contingent consideration Asset Acquisition, Consideration Transferred, Contingent Consideration Business Acquisition [Axis] Accumulated Other Comprehensive Income (Loss) [Table] Series B Preferred Stock [Member] Series B Preferred Stock [Member] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Non vested weighted average grant date fair value Non vested weighted average grant date fair value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Non vested weighted average grant date fair value, vested Deferred Revenue, Additions Additional amounts deferred Increase (Decrease) in Deferred Revenue Deferred revenue Payments to Acquire Productive Assets, Total Payments to Acquire Productive Assets Purchases of property, equipment, and other assets Acquisitions Business Combination Disclosure [Text Block] Product and Service [Axis] Product and Service Business Combination, Contingent Consideration, Liability, Total Business Combination, Contingent Consideration, Liability Business combination, Contingent consideration, Liability Maturities of short-term investments Proceeds from maturities of short-term investments Proceeds from maturities of short-term investments Maturities of short-term investments Customer relationships Finite-Lived Intangible Asset, Useful Life Employee-related Liabilities, Current, Total Payroll and payroll-related Employee-related Liabilities, Current Lessee, Operating Leases [Text Block] Leases Capitalized operating leases Operating Lease, Weighted Average Remaining Lease Term Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Amounts reclassified from AOCI Total liabilities and equity Liabilities and Equity Plan Name [Domain] Plan Name Unbilled Receivables, Current Unbilled receivable Deferred taxes Deferred taxes Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Initial cash investment in prior year Initial Cash Investment in Prior Year Initial cash investment in prior year. Accounting Policies [Table] Disclosure of information about accounting policies. Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Income Statement [Abstract] Rest of World [Member] Non-US [Member] Other liabilities Other liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Contract liabilities Deferred Revenue, Total Deferred Revenue Balance at end of period Balance at beginning of period Deferred revenue Sale of Stock [Domain] Liabilities, Current Total current liabilities Capital Units by Class [Axis] Capital Units by Class 2024 Lessee, Operating Lease, Liability, to be Paid, Year Three 2022 Operating Leases, Future Minimum Payments Due, Next 12 Months Less: Comprehensive loss attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest, Total Business Acquisition, Acquiree [Domain] Recurring [Member] Fair Value, Recurring [Member] Interest Expense, Total Interest Expense Interest expense, net Trade Names [Member] Trade Names [Member] Class A units issued Issued Class B units Number of capital units or capital shares issued. Capital Units Issued Short-term lease cost Short-Term Lease, Cost Accrued expenses and other current liabilities. Accrued Expenses And Other Current Liabilities Accrued expenses and other current liabilities Derivative Instruments and Hedging Activities Disclosures [Line Items] Deferred Tax Liabilities, Net Deferred Tax Liabilities, Net, Total Deferred tax liability Contingent Consideration [Member] Contingent Consideration [Member] Contingent consideration member. Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Schedule Of Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Table] Capitalized operating leases Operating Lease, Weighted Average Discount Rate, Percent Outstanding Class B units (Vested Class B units) Capital Units, Outstanding Initial effect of the Reorganization Transactions and IPO on noncontrolling interests, Share Initial Effect Of The Reorganization Transactions, Share Initial Effect Of The Reorganization Transactions, Share Entity Small Business Entity Small Business Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total Accounts payable and accrued expenses Accounts payable and accrued expenses Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Option indexed to issuers equity settlement alternatives cash at fair value Option Contract Indexed to Equity, Settlement, Cash, Amount Revenue from External Customers by Geographic Areas [Table Text Block] Schedule of Revenue by Geographic Areas Capital Units, Authorized Authorized Class B units Assets, Current Total current assets Property, Plant and Equipment [Line Items] Property Plant And Equipment [Line Items] Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Summary of Receivables, Deferred Contract Costs and Contract Liabilities from Contract with Customers Indefinite-Lived Intangible Assets [Axis] Weighted Average Number of Shares Outstanding, Basic, Total Weighted Average Number of Shares Outstanding, Basic Basic and diluted Finance lease liability Finance Lease, Liability Finance Lease, Liability, Total City Area Code City Area Code Accounts Receivable, before Allowance for Credit Loss, Current Accounts receivable, gross Deferred Contract Costs [Member] Deferred Contract Costs [Member] Deferred Contract Costs [Member] Business Description and Basis of Presentation [Text Block] Description of Business Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Unused commitment fee percentage Deferred Revenue, by Arrangement, Disclosure [Table Text Block] Summary of Deferred Revenue Balances Accumulated Other Comprehensive Income Comprehensive Income (Loss) Note [Text Block] Members' Equity, Total Members' Equity Ending Balance Beginning Balance Share-Based Payment Arrangement [Abstract] Liabilities Total liabilities Document Period End Date Document Period End Date Payments of equity offering issuance costs Payments of Stock Issuance Costs Restricted Stock Restricted Stock [Member] Schedule of Finite-Lived Intangible Assets [Table] Schedule Of Finite Lived Intangible Assets [Table] Tax receivable agreement remeasurement Tax receivable agreement remeasurement Tax Receivable Agreement Remeasurement Tax Receivable Agreement Remeasurement Equity-based compensation, Total equity Limited Liability Company LLC Members Equity Unit Based Compensation and Stock Compensation Limited Liability Company LLC Members Equity Unit Based Compensation and Stock Compensation. Forfeited unvested incentive units Forfeited Unvested Incentive Units Forfeited unvested incentive units. Tax receivable agreements liability Tax Receivable Agreements Liability, Net of Current Portion Tax receivable agreements liability, net of current portion. Operating lease, renewal term Lessee, Operating Lease, Renewal Term Amortized Cost Amortized cost Debt Securities, Available-for-Sale, Amortized Cost Contract with Customer, Liability, Noncurrent Deferred revenue 2023 Finite-Lived Intangible Asset, Expected Amortization, Year One Statistical Measurement [Axis] Statistical Measurement Trademarks Member Trademarks [Member] Accounts Payable, Related Parties, Current Payable, related parties, current Initial Value of Contingent Consideration Initial Value of Contingent Consideration Initial value of contingent consideration Richard Booth [Member] Richard Booth [Member] Richard booth. Schedule of short-term investments Marketable Securities [Table Text Block] Schedule of Intangible Assets and Goodwill [Table Text Block] Schedule of Intangible Assets and Goodwill Accounts Payable and Accrued Liabilities, Current [Abstract] Long-Term Deferred Contract Costs Long Term Deferred Contract Costs Non-current Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance Stockholders' Equity Attributable to Noncontrolling Interest, Total Proceeds to repay outstanding debt Repayment Of Long Term Debt From IPO Proceeds Repayment of long term debt from IPO proceeds. Related Party [Axis] Assets Total assets Noncontrolling Interest [Line Items] Effect of LLC unit exchanges, shares Effect of LLC Unit Exchange, shares Effect of LLC Unit Exchange, shares. ASU 2016-02 [Member] Accounting Standards Update 2016-02 [Member] Net cash paid for acquisitions Net cash paid for acquisitions Noncash or Part Noncash Acquisition, Net Nonmonetary Assets Acquired (Liabilities Assumed) Preliminary, as previously reported Previously Reported [Member] 2025 Operating Leases, Future Minimum Payments, Due in Four Years Developed software Software Development [Member] Long-term Debt, Excluding Current Maturities, Total Long-Term Debt, Excluding Current Maturities Term loan, net of current portion Earnings Per Share, Diluted, Total Earnings Per Share, Diluted Basic and diluted Net loss per share, diluted Operating lease right of use asset. 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Performance Based Member Performance Based [Member] Performance Stock Unit Performance-Based Members Equity Members Equity [Member] Members equity. Schedule of Leases Term and Discount Rate Schedule Of Leases Term And Discount Rate [Table Text Block] Schedule of leases term and discount rate. Operating lease liability Lease liability balance at March 31, 2022 Operating Lease, Liability Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities Total Operating Leases, Future Minimum Payments Due Issuance of common stock shares. Issuance of common stock shares Statement of Financial Position [Abstract] Entity File Number Entity File Number Scenario [Domain] AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Unrealized Loss on Investments Statement of Cash Flows [Abstract] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Derivative Asset, Current Short-term derivative asset TRA Remeasurement Gain TRA Remeasurement Gain Retirement Plan Retirement Benefits [Text Block] Geographical [Domain] Geographical Statistical Measurement [Domain] Statistical Measurement Statement of Stockholders' Equity [Abstract] Sale of Stock [Axis] Share based compensation plan modification incremental compensation cost Share-Based Payment Arrangement, Plan Modification, Incremental Cost Other comprehensive loss: Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Weighted-average remaining lease term (in years) Weighted-Average Remaining Lease Term Abstract Weighted-average remaining lease term. Class of Stock [Domain] Class of Stock Net Loss Attributable to Parent Prior to the Reorganization Transactions Net loss attributable to parent prior to the reorganization transactions Less: Net loss attributable to Definitive OpCo prior to the Reorganization Transactions Computers and software member. Computers And Software [Member] Computers and Software [Member] Legal Entity [Axis] Schedule of Lease Costs Lease, Cost [Table Text Block] Stockholders' Equity Note [Abstract] Fair Value Disclosures [Text Block] Fair Value Measurements Long-term debt Long-Term Debt and Lease Obligation Long-term debt Proceeds from equity offerings, net of underwriting discounts Proceeds from Issuance of Common Stock Long-Term Debt, Type [Axis] Long-term Debt, Type Deferred tax liabilities Deferred Income Tax Liabilities, Net Deferred Income Tax Liabilities, Net, Total Property, Plant and Equipment [Table Text Block] Schedule of Property and Equipment Revenue from Contract with Customer [Text Block] Revenue Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule Of Revenues From External Customers And Long Lived Assets [Table] Long-term Debt and Lease Obligation, Current, Total Long-Term Debt and Lease Obligation, Current Less: current portion of long-term debt Antidilutive Securities [Axis] Related Party Transaction, Expenses from Transactions with Related Party Related party transaction, expenses from transactions with related party Deferred Revenue, Revenue Recognized Revenue recognized Investment Owned, Balance, Shares Number of shares held Contract with Customer, Liability, Current Current portion of deferred revenue 2022, excluding the nine months ended September 30, 2022 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Gross unrealized gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Purchases of short-term investments Purchases of short-term investments Payments for (Proceeds from) Short-Term Investments Payments for (Proceeds from) Short-term Investments, Total Lessee, Lease, Description [Line Items] Total purchase price Purchase price Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Purchase price Tax receivable agreement realized tax benefits payable to related parties Tax Receivable Agreement Realized Tax Benefits Payable To Related Parties Tax receivable agreement realized tax benefits payable to related parties. Call Option [Member] Call Option [Member] Weighted Average Number of Shares Outstanding, Diluted, Total Weighted Average Number of Shares Outstanding, Diluted Basic and diluted Weighted average number of shares of Class A outstanding Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Accounts Receivable Vested And Unvested Units [Member] Vested and Unvested Units [Member] Vested and unvested units. Revenue Remaining Performance Obligation Non Current Revenue Remaining Performance Obligation Non Current Noncurrent Purchase of Ownership percentage Percentage of Ownership Percentage of Ownership Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs Balance at end of period Balance at beginning of period Net loss Business Acquisition, Pro Forma Net Income (Loss) Computer Equipment [Member] Computer Equipment General and administrative General and Administrative Expense [Member] General And Administrative Expense Stock issued during period share common stock upon vesting of restricted stock unit. Stock Issued During Period Share Common Stock Upon Vesting Of Restricted Stock Unit Issuance of Class A Common Stock upon vesting of RSUs, shares Commercial Paper [Member] Commercial Paper [Member] Commercial paper Current Fiscal Year End Date Current Fiscal Year End Date Interest payable Interest Payable Derivative Instruments and Hedging Activities Disclosure [Abstract] Maturity date Derivative, Maturity Date Financial Instruments [Domain] Financial Instruments Subscription Services [Member] Subscription Services [Member] Subscription services member. Tax receivable agreement benefit percentage Tax Receivable Agreement Benefit percentage Tax receivable agreement benefit percentage. Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements Payments Net assets acquired, net of cash acquired Noncash or Part Noncash Acquisition, Value of Assets Acquired Noncash or Part Noncash Acquisition, Value of Assets Acquired, Total Repurchase of share, Shares Repurchase of share, Shares Stock Repurchased During Period, Shares Other Assets, Noncurrent, Total Other Assets, Noncurrent Other assets Total equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Beginning Balance Ending Balance Entity Address, Address Line One Entity Address, Address Line One Regulatory Asset [Domain] Property, Plant and Equipment [Member] Property And Equipment [Member] Repayments of term loans Repayments of Long-term Debt, Total Repayments of Long-Term Debt Summary of Effect of Derivative Interest Rate Swap and Related Tax Effects in AOCI Derivative Instruments, Gain (Loss) [Table Text Block] Noncontrolling Interest Noncontrolling Interest [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class Property Subject to or Available for Operating Lease [Domain] Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid Distributions to members prior to Reorganization Transactions Distributions to members prior to Reorganization Transactions Supplemental Cash Flow Information [Abstract] Supplemental cash flow disclosures: Supplemental cash flow disclosures: Share Repurchase Program [Domain] Business combination contingent consideration liability other. Business Combination Contingent Consideration Liability Other Business combination contingent consideration liability other Provision for income taxes Income Tax Expense (Benefit) Income Tax Expense (Benefit), Total Income tax benefit Tax Receivable Agreement Realized Tax Benefits Payable To Related Parties Percent Tax receivable agreement realized tax benefits payable to related parties percent. Tax receivable agreement realized tax benefits payable to related parties percent Income Tax Disclosure [Text Block] Income Taxes Preferred stock, shares issued Preferred Stock, Shares Issued Preferred Stock, Shares Issued, Total Balance Sheet Location [Domain] Other Accrued Liabilities, Current Other Total debt, net Long-Term Debt and Lease Obligation, Including Current Maturities Total debt, net Revenue, Remaining Performance Obligation, Amount Total Income Tax Disclosure [Abstract] Time based restricted stock units. Time Based Restricted Stock Units [Member] Time Based RSUs Issuance of Class A common stock in IPO net of costs, Share Stock Issued During Period, Shares, New Issues Stock issued during period, shares, new issues Accrued expenses contingent consideration current. Accrued Expenses Contingent Consideration Current Contingent consideration, current Goodwill Business Acquisition, Goodwill, Expected Tax Deductible Amount Directed Share Program [Member] Directed share program. Directed Share Program [Member] Number of Reporting Units Number of Reporting Units Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV Goodwill and Intangible Assets Disclosure [Abstract] Loss on extinguishment of debt Non cash portion of gains losses on extinguishment of debt. Non Cash Portion of Gains Losses On Extinguishment Of Debt Accounts Receivable, Related Parties, Current Receivable, related parties Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Operating Lease Liabilities Transaction, integration and restructuring expenses Transaction, Integration and Restructuring Expenses Transaction, integration and restructuring expenses. Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule Of Entity Wide Revenue By Major Customers By Reporting Segments [Table] Operating Income (Loss) Loss from operations Goldman Sachs Bank USA [Member] Goldman Sachs Bank USA [Member] Option to extend lease term Lessee, Operating Lease, Option to Extend Related Party [Domain] Office relocation. Office Relocation [Member] Office Relocation [Member] 2021 Equity Incentive Plan Two Thousand Twenty One Equity Incentive Plan [Member] Two Thousand Twenty one Equity Incentive Plan Member Payments to Acquire Businesses, Net of Cash Acquired, Total Payments to Acquire Businesses, Net of Cash Acquired Cash paid for acquisitions, net of cash acquired Scenario [Axis] Cash consideration paid at closing Asset Acquisition, Consideration Transferred, Transaction Cost Definitive Healthcare Corp. [Member] Definitive Healthcare Corp. [Member] Acquisitions: Noncash or Part Noncash Acquisition, Net Nonmonetary Assets Acquired (Liabilities Assumed) [Abstract] Entity Filer Category Entity Filer Category Liabilities, Noncurrent [Abstract] Long term liabilities: Restructuring Plan [Domain] Option Indexed to Issuer's Equity, Type [Domain] Regulatory Asset [Axis] Other comprehensive income Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total Property and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total Operating Expenses Total operating expenses Accounts Receivable, Held-for-sale Accounts receivable Entity Current Reporting Status Entity Current Reporting Status Asset Class [Domain] Asset Class Unrealized gain (loss) on available-for-sale securities OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, after Tax OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, after Tax, Total 2019 Delayed Draw Term Loan [Member] Two Thousand Nineteen Delayed Draw Term Loan [Member] Two Thousand Nineteen Delayed Draw Term Loan. AOCI Attributable to Parent, Net of Tax [Roll Forward] Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Schedule of Accrued Expenses and Other Current Liabilities Asset Impairment Charges, Total Asset Impairment Charges Impairment charge Shares withheld related to net share settlement (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Other Assets [Member] Other Assets [Member] Business Combinations [Abstract] Finite-Lived Intangible Assets, Net, Ending Balance Finite-Lived Intangible Assets, Net, Beginning Balance Finite-Lived Intangible Assets, Net Intangible assets, net Net Carrying Amount Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease), Total Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease) Additions Stockholders' Equity Attributable to Parent, Total Stockholders' Equity Attributable to Parent Beginning Balance Ending Balance Paid in Kind Interest on 2021 Term Loan [Member] PaidInKindInterestOnTwoThousandTwentyOneTermLoan[Member] PaidInkindinterestontwothousandtwentyonetermloan Time Based Member Time Based [Member] Time Based Unit Time-Based Summary of Transaction Transferred Summary Of Transaction Transferred Table [Text Block] Summary of Transaction Transferred AOCI Attributable to Parent [Member] Accumulated Other Comprehensive (Loss) Income Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Effect of exchange rate changes on cash and cash equivalents Asset Class [Axis] Asset Class Entity Tax Identification Number Entity Tax Identification Number Income Statement Location [Axis] Income Statement Location Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Forfeited Common Stock, Value, Issued Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Common stock, value Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract] Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Total Retained Earnings (Accumulated Deficit) Accumulated deficit Weighted average earnings per share basic and diluted other disclosures abstract. Weighted Average Earnings Per Share Basic And Diluted Other Disclosures Abstract Weighted average Class A Common Stock outstanding: Equity Components [Axis] Equity Components Intangible assets including goodwill gross. Intangible Assets Including Goodwill Gross Gross Carrying Amount Business combination, Acquisition related costs Business Combination, Acquisition Related Costs Accounting Standards Update [Domain] Databases [Member] Database Rights [Member] Leases [Abstract] Acquisition of Limited Liability Company (LLC) Acquisition of Limited Liability Company (LLC) Preferred stock convertible conversion ratio Preferred Stock, Convertible, Conversion Ratio Customer Relationships [Member] Customer Relationships [Member] Disaggregation of Revenue [Table] Disaggregation Of Revenue [Table] Date of acquisition Business Acquisition, Date of Acquisition Agreement Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable, accrued expenses and other current liabilities Entity Emerging Growth Company Entity Emerging Growth Company Related Party Transaction [Axis] Operating Expenses [Abstract] Operating expenses: Other Nonoperating Income (Expense) [Abstract] Other expense, net: Fair value net derivative asset liability measured on recurring basis unobservable inputs reconciliation net change in fair value and other adjustments. Fair Value Net Derivative Asset Liability Measured On Recurring Basis Unobservable Inputs Reconciliation Net Change In Fair Value And Other Adjustments Net change in fair value and other adjustments AW acquisition AW Acquisition [Member] AW acquisition. Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Accounts Receivable Fees and Expense Noninterest Expense Offering Cost Schedule of Stock by Class [Table] Schedule Of Stock By Class [Table] Comprehensive loss Comprehensive loss Comprehensive Income Net Of Tax Including Non-controlling Interests Comprehensive income net of tax including non-controlling interests. Selling and Marketing Expense, Total Selling and Marketing Expense Sales and marketing Debt Securities, Available-for-Sale [Table] Retirement Benefits [Abstract] Depreciation, Depletion and Amortization, Nonproduction, Total Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization Document Transition Report Document Transition Report Deferred Tax Liability Due to Acquisition Deferred Tax Liability Due to Acquisition. Amortization Expense Per Dollar of Gross Revenue Costs amortized Assets Assets, Fair Value Disclosure Assets, Fair Value Disclosure, Total Prepaid expenses and other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Non vested weighted average grant date fair value, Granted Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Accrued Expenses and Other Current Liabilities Summary of Fair Values of the Interest Rate Swap Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Depreciation and amortization Depreciation, Depletion and Amortization Depreciation, Depletion and Amortization, Total Summary of Changes in Accumulated Balances in Other Comprehensive Income Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax, Total Accumulated Other Comprehensive Income (Loss), Net of Tax Deferred income taxes Deferred income taxes Increase (Decrease) in Deferred Income Taxes Contract liabilities Accounts Receivable, after Allowance for Credit Loss, Current Accounts receivable, net Accounts receivable, net Entity Common Stock, Shares Outstanding Entity Common Stock Shares Outstanding Other Comprehensive Income (Loss), Net of Tax, Total Other Comprehensive Income (Loss), Net of Tax Other comprehensive income (loss) Amortization of Debt Issuance Costs Amortization of debt issuance costs Revision of Prior Period [Domain] Allocation of net loss attributable to Definitive Healthcare Corp. Net loss attributable to Definitive Healthcare Corp. Net Income (Loss) Attributable to Parent Net loss Follow On Offering Member Follow-On Offering [Member] Follow-On Offering (FPO) member. Current portion of operating lease liabilities Operating Lease, Liability, Current Vested incentive units Vested Incentive Units, Value Vested incentive units, value. 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Monocl Acquisition [Member] Monocl Acquisition [Member] Property, Plant and Equipment, Gross, Ending Balance Property, Plant and Equipment, Gross, Beginning Balance Property, Plant and Equipment, Gross, Total Property, Plant and Equipment, Gross Property, Plant and Equipment, Gross Initial effect of the Reorganization Transactions and IPO on noncontrolling interests Initial Effect Of The Reorganization Transactions Initial Effect Of The Reorganization Transactions Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Award vesting percentage Additional paid-in capital Additional Paid in Capital Additional Paid in Capital, Ending Balance Additional Paid in Capital, Beginning Balance Additional Paid in Capital, Total Entity Interactive Data Current Entity Interactive Data Current Related Party Transactions Disclosure [Text Block] Related Parties Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Supplemental disclosure of non-cash financing activities Related Party Transactions [Abstract] Equity-based compensation Limited Liability Company (LLC) Members' Equity, Unit-Based Payment Arrangement 2022, excluding the nine months ended September 30, 2022 Lessee, Operating Lease, Liability, to be Paid, Year One Equity: Members' Equity [Abstract] Leasehold Improvements [Member] Leasehold Improvements Proceeds from issuance of IPO Proceeds from Issuance Initial Public Offering Local Phone Number Local Phone Number Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Purchase price Purchase price Asset Acquisition, Consideration Transferred Net pre-tax gains Unrecognized Tax Benefits, Ending Balance Unrecognized Tax Benefits, Beginning Balance Unrecognized Tax Benefits Unrecognized tax benefits Net loss prior to Reorganization Transactions Net Income Loss Attributable To Definitive Opco Prior To Reorganization Transactions Net income loss attributable to definitive Opco prior to reorganization transactions. 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