Summary of Significant Accounting Policies | 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. Restatement of Previously Issued Financial Statements In the first quarter of 2023, the Company began a review of its sales tax positions, and related accounting matters, with the assistance of outside consultants. As a result of the review, the Company determined during the second quarter of 2023 that sales in certain states were subject to sales tax and that the Company had not assessed such sales tax on sales of its services to customers. The Company determined that it did not accrue sales taxes and corrected these Misstatements by recording sales tax accruals through general and administrative expense as of the end of each affected period. The original accrual amounts assumed that (i) customers who have not provided certificates or other documentation of exemption from sales tax are taxable, (ii) maximum interest and penalty assessments may be imposed, and (iii) the Company will not receive waivers of interest and penalties or other benefits under agreements it may obtain with jurisdictions from outreach with voluntarily disclosures. These accrual amounts have been, and will continue to be, adjusted as the Company enters into voluntary disclosure agreements with the applicable jurisdictions. The Company will continue to accrue interest on any outstanding liabilities until the voluntary disclosure agreements are settled. The misstatements that appeared in the previously issued financial statements were material, and the Company also corrected other immaterial errors. As described in additional detail in the Explanatory Note in the Company's Amendment No. 1 on Form 10-K/A to its Annual Report on Form 10-K for the year ended December 31, 2022 filed with the SEC on August 14, 2023, the Company restated its audited consolidated financial statements as of and for the years ended December 31, 2022, 2021 and 2020, as well as the unaudited condensed consolidated quarterly financial information for the quarterly periods in the fiscal years ended December 31, 2022, 2021, and 2020, to reflect the correction of the misstatements and other immaterial adjustments, and to make corresponding disclosures. The Company also filed an Amendment No. 1 on Form 10-Q/A to amend the Quarterly Report on Form 10-Q for the three months ended March 31, 2023 with the SEC on August 14, 2023, to restate its unaudited condensed consolidated financial statements for the three months ended March 31, 2023 and 2022. The restated prior-year results are reflected in the consolidated financial results disclosed within this Annual Report on Form 10-K. 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 a 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 recognized at the time the services are performed. 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's 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. Marketable Securities All investments in marketable securities are classified as available-for-sale and are reported at fair value with unrealized gains and losses excluded from earnings and reported net of tax in accumulated other comprehensive income, which is a component of stockholders’ equity. Unrealized losses that are determined to be other-than-temporary, based on current and expected market conditions, are recognized in earnings. Declines in fair value determined to be credit related are charged to earnings. The cost of marketable securities sold is determined by the specific identification method. 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 receivables in 2023, 2022 or 2021 . 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, 2023 and 2022 , the allowance for doubtful accounts was $ 2.3 million and $ 1.9 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 sheets. 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-line basis over two 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 operations. There were no impairments of these costs in the years ended December 31, 2023, 2022 or 2021 . 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 operations. Major replacements and improvements are capitalized, while general repairs and maintenance are charged to expense as incurred. Leases The Company, at the inception of the contract, determines whether a contract is or contains a lease. For leases with terms greater than 12 months, the Company records the related operating or finance right of use asset and lease liability at the present value of lease payments over the lease term. The Company is generally not able to readily determine the implicit rate in the lease and therefore uses the determined incremental borrowing rate at lease commencement to determine the present value of lease payments. The incremental borrowing rate represents an estimate of the market interest rate the Company would incur at lease commencement to borrow an amount equal to the lease payments on a collateralized basis over the term of a lease. Renewal options are not included in the measurement of the right of use assets and lease liabilities unless the Company is reasonably certain to exercise the optional renewal periods. Some leases also include early termination options, which can be exercised under specific conditions. Additionally, certain leases contain incentives, such as construction allowances from landlords. These incentives reduce the right-of-use asset related to the lease. Some of the Company's leases contain rent escalations over the lease term. The Company recognizes expense for operating leases on a straight-line basis over the lease term. The Company’s lease agreements contain variable lease payments for common area maintenance, utility, and taxes. The Company has elected the practical expedient to combine lease and non-lease components for all asset categories. Therefore, the lease payments used to measure the lease liability for these leases include fixed minimum rentals along with fixed non-lease component charges. The Company does not have significant residual value guarantees or restrictive covenants in the lease portfolio. Derivative Instruments and Hedging Activities The Company records all derivatives on the balance sheet at fair value. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether the Company has elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting. Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges. Derivatives may also be designated as hedges of the foreign currency exposure of a net investment in a foreign operation. Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge. The Company may enter into derivative contracts that are intended to economically hedge certain of its risk, even though hedge accounting does not apply or the Company elects not to apply hedge accounting. The Company measures the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio. Advertising and Promotional Expenses The Company expenses advertising costs as incurred in accordance with ASC 720— Other Expenses – Advertising Cost . Advertising expenses of $ 1.6 million, $ 1.6 million and $ 0.9 million for the years ended December 31, 2023, 2022 and 2021 , respectively, are included in sales and marketing expenses on the consolidated statements of operations. 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 $ 1.6 million and $ 1.0 million for the years ended December 31, 2023 and 2022 , respectively, are included in property and equipment, net. Acquisitions 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 combination of an income and market approach. The income approach utilizes a projected discounted cash flow model that includes significant assumptions and estimates, including the discount rate, growth rate, and future financial performance. The market approach utilizes the Company's market capitalization plus an appropriate control premium. Market capitalization is determined by multiplying the number of shares of Class A Common Stock outstanding by the market price of the Company's Class A Common Stock. The control premium is determined by utilizing data from publicly available premium studies for similarly situated public company transactions. 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 – 20 years Technology 6 – 8 years Tradenames / trademark 5 – 19 years Data 3 years During the quarter ended September 30, 2023, the Company experienced a sustained decline in its stock price and market capitalization, which represented a triggering event requiring management to perform a goodwill impairment test as of September 30, 2023. As a result of the Company’ s impairment test, the Company determined that the fair value of its single reporting unit was lower than its carrying value and, accordingly, recorded a non-cash, pretax, goodwill impairment charge of $ 287.4 million. The goodwill impairment charge did not affect the Company’s liquidity or the financial covenants in its outstanding debt agreement. During the quarter ended December 31, 2023, the Company performed a quantitative assessment and concluded that the fair value of its single reporting unit exceeded its carrying value as of December 31, 2023. The Company will continue to monitor for potential impairment should impairment indicators arise. Refer to Note 9. Goodwill and Intangible Assets for further details. 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 long term liabilities as 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, 2023 and 2022 , the Company had $ 1.5 million and $ 2.0 million, respectively, of unamortized deferred financing costs related to its non-revolving credit facilities, and $ 0.4 million and $ 0.6 million, respectively, of unamortized deferred financing costs related to its revolving credit facility. 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. Any amounts payable, inclusive of interest and penalties, to taxation authorities in which the Company did not charge the customer for sales taxes is recorded within general and administrative expenses in the consolidated statements of operations and is included in accrued expenses and other current liabilities in the consolidated balance sheets. Income Taxes Definitive OpCo is taxed as a partnership. For federal and state income tax purposes, income, losses, and other tax attributes not generated by AW and its wholly owned U.S. and foreign subsidiaries generally pass through to the Definitive OpCo members’ individual income tax returns. Additionally, Definitive OpCo may be subject to certain taxes on behalf of its members in certain states. AW and its wholly owned U.S. and foreign subsidiaries are taxed as corporations. Accordingly, AW accounts 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. Deferred taxes for AW are determined using enacted federal, state, or foreign income tax rates in effect in the year in which the differences are expected to reverse. Definitive Healthcare Corp. is subject to U.S. federal, state and local income taxes with respect to its allocable share of any taxable income of Definitive OpCo and will be taxed at the prevailing corporate tax rates. In addition to tax expenses, Definitive Healthcare Corp. will also make payments under the Tax Receivable Agreement, which the Company expects to be significant. The Company anticipates that it will account for the income tax effects and corresponding Tax Receivable Agreement’s effects resulting from future redemptions or exchanges of LLC Units by recognizing an increase in Definitive Healthcare Corp.'s deferred tax assets, based on enacted tax rates at the date of the purchase or exchange. Further, the Company accounts for amounts payable under the Tax Receivable Agreement in accordance with ASC 450— Contingencies . The amounts to be recorded for both the deferred tax assets and the liability for the Company's obligations under the Tax Receivable Agreement will be estimated at the time of any purchase or exchange as a reduction to shareholders’ equity, and the effects of changes in any of the Company's estimates after this date will be included in net income or loss. Similarly, the effect of subsequent changes in the enacted tax rates will be included in net income or loss. In assessing the realizability of deferred tax assets of the Company and its subsidiaries, management considers the weight of available evidence and whether it is more likely than not that some or all of the deferred tax assets will be realized; when necessary, a valuation allowance is established. 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, 2023, 2022 and 2021, the Company did not have any uncertain tax positions. Net Loss Per Share Net income or loss per share 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 share is computed by dividing the net income or loss by the weighted-average number of common shares of the Company outstanding during the period. Diluted net income or loss per share is computed by giving effect to all potential shares, including exchangeabl |