Summary of Significant Accounting Policies	9 Months Ended
Summary of Significant Accounting Policies	Sep. 30, 2024
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation and Consolidation The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its subsidiaries and have been prepared in accordance with generally accepted accounting principles in the United States of America (“GAAP”) and in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”). All intercompany balances and transactions have been eliminated in consolidation. In the normal course of business, the Company has transactions with various investment entities. In certain instances, the Company provides investment advisory services to pooled investment vehicles (each, an “Investment Fund”). The Company does not have discretion to make any investment, except for the specific investment for which an Investment Fund was formed. The Company performs an assessment to determine (a) whether the Company’s investments or other interests will absorb portions of a variable interest entity’s expected losses or receive portions of the entity’s expected residual returns and (b) whether the Company’s involvement, through holding interests directly or indirectly in the entity, would give it a controlling financial interest. The Company consolidates entities in which it, directly or indirectly, is determined to have a controlling financial interest. The Company has a majority ownership interest in Forge Europe GmbH ("Forge Europe") and accounts for Forge Europe as a fully consolidated subsidiary. The remaining interest, held by Deutsche Börse Aktiengesellschaft ("DBAG"), is reported as a noncontrolling interest in the unaudited condensed consolidated financial statements. DBAG is a related party of the Company. There have been no changes to the Company's significant accounting policies described in the audited consolidated financial statements for the year ended December 31, 2023, that have had a material impact on these unaudited condensed consolidated financial statements and related notes. Segment Information The Company operates as a single operating segment and reportable segment. The Company’s chief operating decision maker is its Chief Executive Officer, who reviews financial information presented on a consolidated basis for purposes of making operating decisions, assessing financial performance, allocating resources, and evaluating the Company’s financial performance. Unaudited Interim Condensed Consolidated Financial Information The accompanying interim condensed consolidated financial statements as of September 30, 2024 and for the three and nine months ended September 30, 2024 and 2023, and accompanying notes are unaudited. These unaudited interim condensed consolidated financial statements (the "unaudited condensed consolidated financial statements") have been prepared in accordance with GAAP applicable to interim financial statements. These financial statements are presented in accordance with the rules and regulations of the SEC and do not include all disclosures normally required in annual consolidated financial statements prepared in accordance with GAAP. As such, the information included herein should be read in conjunction with the consolidated financial statements and accompanying notes as of and for the year ended December 31, 2023 (the “audited consolidated financial statements”) that were included in the Company’s Annual Report on Form 10-K filed on March 26, 2024, which provides a more complete discussion of the Company’s accounting policies and certain other information. In management’s opinion, the unaudited interim condensed consolidated financial statements have been prepared on the same basis as the annual financial statements, which include only normal recurring adjustments, necessary for a fair statement of the Company’s financial position as of September 30, 2024 and its condensed consolidated results of operations and cash flows for the three and nine months ended September 30, 2024 and 2023. The results of operations for the three and nine months ended September 30, 2024 are not necessarily indicative of the results expected for the year ending December 31, 2024 or any other future interim or annual periods. Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires management to make estimates 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 and the reported amounts of revenues and expenses during the reporting period. Such management estimates include, but are not limited to, collectability of accounts receivable, the fair value of financial assets and liabilities, the useful lives of acquired intangible assets and property and equipment, the impairment of long-lived assets and goodwill, the fair value of warrants, equity awards, and share-based compensation expenses, including the derived service period for the awards containing market-based vesting conditions, and the valuation of deferred tax assets. These estimates are inherently subjective in nature and, therefore, actual results may differ from the Company’s estimates and assumptions. The Company bases its estimates on historical experience and also on assumptions that it believes are reasonable. Further, the Company applies judgment in determining whether, directly or indirectly, it has a controlling financial interest in the Investment Funds, in order to conclude whether any of the Investment Funds must be consolidated. The Company believes the estimates and assumptions underlying the unaudited condensed consolidated financial statements are reasonable and supportable based on the information available as of September 30, 2024. These estimates may change as new events occur and additional information is obtained, and related financial impacts will be recognized in the Company’s consolidated financial statements as soon as those events become known. Goodwill and Other Intangible Assets, Net Goodwill represents the excess of the aggregate fair value of the consideration transferred in a business combination over the fair value of the assets acquired, net of liabilities assumed. Goodwill is not amortized but is tested for impairment annually on October 1, or more frequently if events or changes in circumstances indicate the goodwill may be impaired. These events or circumstances could include a significant change in the business climate, regulatory environment, established business plans, operating performance indicators, or competition. Potential impairment indicators may also include, but are not limited to, (i) the results of the Company’s most recent annual or interim impairment testing, (ii) downward revisions to internal forecasts, (iii) declines in the Company’s market capitalization below its book value, and the magnitude and duration of those declines, (iv) a reorganization resulting in a change to the Company’s operating segments, and (v) other macroeconomic factors, such as increases in interest rates that may affect the weighted average cost of capital or volatility in the equity and debt markets. Acquired intangible assets also consist of identifiable intangible assets, primarily software technology, launched in-process research and development ("IPR&D") asset, website, trade name, and customer relationships, resulting from business acquisitions. Finite-lived intangible assets are recorded at fair value on the date of acquisition and are amortized over their estimated useful lives. The Company bases the useful lives and related amortization expense on its estimate of the period that the assets will generate revenues or otherwise be used. Concentration of Credit Risks The Company’s exposure to credit risk associated with its contracts with holders of private company equity (“sellers”) and investors (“buyers”) related to the transfer of private securities is measured on an individual counterparty basis. Concentrations of credit risk can be affected by changes in political, industry, or economic factors. To reduce the potential for risk concentration, the Company’s exposure is monitored in light of changing counterparty and market conditions. As of September 30, 2024 and December 31, 2023, the Company did not have any material concentrations of credit risk outside the ordinary course of business. As of September 30, 2024 and December 31, 2023, no customers accounted for more than 10% of the Company’s accounts receivable. No customer accounted for more than 10% of total revenue, less transaction-based expenses, for the three and nine months ended September 30, 2024 and 2023. Revenue by Geographic Location For the three and nine months ended September 30, 2024 and 2023, revenue outside of the United States (including U.S. territories), based on customer billing address, was $1.1 million, $4.3 million, $1.0 million, and $3.0 million, respectively. Comprehensive Loss Comprehensive loss consists of Net loss and Other comprehensive income or loss. The Company's Other comprehensive income or loss is comprised of foreign currency translation gains and losses. Accumulated other comprehensive loss, as presented in the condensed consolidated financial statements, consists of changes in unrealized gains and losses on foreign currency translation.