Summary of Significant Accounting Policies (Policies)	9 Months Ended
Summary of Significant Accounting Policies (Policies)	Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited interim consolidated financial statements are prepared in accordance with United States generally accepted accounting principles (“U.S. GAAP”) for interim financial information and with the instructions to the Quarterly Report on Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, the unaudited interim consolidated financial statements include the accounts of the Company and our subsidiaries. All intercompany balances and transactions have been eliminated in consolidation. In addition, certain reclassifications of amounts previously reported have been made to the accompanying consolidated financial statements in order to conform to current presentation. In the opinion of management, all adjustments (consisting of normal recurring accruals), considered necessary for a fair presentation have been included. The interim results for the nine months ended September 30, 2023 are not necessarily indicative of the results that may be expected for the year ending December 31, 2023, or for any other future annual or interim period. These consolidated financial statements should be read in conjunction with the Company’s audited financial statements and accompanying notes thereto included in our Form 10-K.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in our audited consolidated financial statements and accompanying notes. We base our estimates and assumptions on various judgments that we believe to be reasonable under the circumstances. The significant estimates and assumptions that affect the financial statements may include, but are not limited to, those that are related to going concern, income tax valuation allowances, useful lives of intangible assets and property, equipment and software, fair value of financial assets and liabilities, determining provision for doubtful accounts, valuation of acquired tangible and intangible assets, the impairment of intangible assets and goodwill, and fair market value of Bakkt common units, incentive units and participation units. Actual results and outcomes may differ from management’s estimates and assumptions and such differences may be material to our audited consolidated financial statements.
Bakkt Crypto Revenue Recognition	Bakkt Crypto Revenue Recognition Bakkt Crypto offers customers the ability to purchase or sell certain crypto on its platform. Bakkt Crypto partners with a number of liquidity providers to provide customers with immediate liquidity and access to crypto. Bakkt Crypto settles with the liquidity partners on a daily basis. The contract with a customer is created when a customer agrees to execute a trade on our platform. Each customer purchase transaction includes multiple performance obligations including execution, custody of the customer's purchased crypto, and material rights for ongoing custody beyond the original contractual period. Customer sales only carry a single performance obligation which is execution of the trade. We consider the sale of customer crypto associated with delisted crypto to be revenue in the context of our contracts with customers. We own the crypto as it crosses our platform and accordingly act as a principal in the arrangement. We report the gross proceeds of a sale to a customer or liquidity provider, including a spread on the market price of the crypto as revenue. Substantially all of the consideration is allocated to the execution performance obligation, which is satisfied when we record the transaction to the customer's account. Custody services are rendered over the initial contract term which we have concluded is one day. Customers have a material right to obtain additional custody services at no cost by not selling the purchased crypto, which is recognized over the period that the assets are held on our platform. The consideration allocated to the custody and material right performance obligations is estimated on the basis of a cost plus a margin approach and was not material to the three or nine months ended September 30, 2023. Judgment is required in determining whether the Company is the principal or the agent in our contracts with customers. We have determined that we are the principal in transactions with customers as we control the crypto prior to its delivery to the customer and we are primarily responsible for the delivery of the crypto to the customer. Accordingly, revenue and costs associated with Bakkt Crypto's services are presented gross in our consolidated statement of operations. Where applicable, we make payments to introducing brokers based on the transaction volume from resulting customer volume. These payments are expensed in the period they are incurred and are included in "Clearing, Execution and Brokerage Fees" on the consolidated statement of operations.
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements For the nine months ended September 30, 2023, there were no significant changes to the recently adopted accounting pronouncements applicable to us from those disclosed in Note 2 to the consolidated financial statements included in our Form 10-K.