Commitments and Contingencies	9 Months Ended
Commitments and Contingencies	Sep. 30, 2025
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Credit card receivables In partnership with a credit card issuing bank (the "Issuing Bank"), the Company offers a credit card product to customers. As of September 30, 2025 and December 31, 2024, the Company had outstanding commitments to purchase all credit card receivables of $150.6 million and $65.8 million, respectively, from the Issuing Bank. Legal and regulatory matters The Company is currently subject to, and may in the future be involved in, various litigation matters, legal claims, investigations, and regulatory proceedings. Loss contingencies are accrued when management determines both that it is probable that losses have been incurred and that those losses are reasonably estimable. The Company accrued $1.0 million and $6.1 million in estimated loss contingencies as of September 30, 2025 and December 31, 2024, respectively. These estimated loss contingencies relate to any unsettled matters in which there is at least a reasonable possibility that a material loss could be incurred. With respect to these matters, management believes losses in excess of amounts accrued, if any, are reasonably possible but cannot be reasonably estimated based on current knowledge. The Company disputes these claims and intends to continue to defend these matters vigorously. Earn-Related Litigation On January 12, 2023, the Securities and Exchange Commission (the "SEC") charged Gemini Trust Company, LLC ("GTC"), a wholly-owned subsidiary of the Company, for the unregistered offer and sale of securities to retail investors through GTC's facilitation of a program "Earn" that allowed customers to earn interest by lending their crypto assets to a third party partner, Genesis. The SEC’s complaint alleged that the Earn program constituted an offer and sale of securities under applicable law and should have been registered with the SEC. Genesis, which was also named in this complaint, entered into a settlement with the SEC. On April 2, 2025, the U.S. District Court for the Southern District of New York (the “SDNY”) ordered a 60-day stay, as requested by the parties, to explore a potential resolution, which stay was later extended until September 15, 2025. On September 12, 2025, the parties notified SDNY that they had reached a resolution in principle and would provide final paperwork for the resolution by December 15, 2025. The Company expects the case to remain stayed until then. Described below are certain matters associated with Earn, totaling $137.0 million in expenses, which GTC has settled as of December 31, 2024. GTC fully accrued for these items as of December 31, 2023 and as a result there was no additional loss recorded in the condensed consolidated statements of operations and comprehensive loss for the three and nine months ended September 30, 2025 and 2024. There is corresponding activity recorded in the statement of cash flows for the nine months ended September 30, 2024. On October 19, 2023, GTC was named as a defendant in a lawsuit brought by the New York Attorney General (“NYAG”) against GTC and various other external parties, including but not limited to Genesis and its parent company Digital Currency Group Inc. ("DCG"), alleging violations and misrepresentations in connection with GTC's Earn program. On June 14, 2024, GTC entered into a settlement agreement with the NYAG that required GTC to distribute approximately $50.0 million (i.e. approximately 3% of in-kind assets) as described below. On February 28, 2024, GTC entered into a settlement with the NYSDFS ("Consent Order") that required GTC to contribute $40.0 million to Earn users’ recovery. Additionally, GTC paid a civil monetary penalty of $37.0 million related primarily to the Earn program. GTC paid the $37.0 million of civil monetary penalty to the NYSDFS on March 11, 2024. GTC contributed bitcoin worth $40.0 million, in compliance with the Consent Order, and an additional $10.0 million, in compliance with a settlement agreement associated with the Genesis bankruptcy, towards the Earn users' recovery. On May 29, 2024, Gemini Earn users received approximately $2,180.0 million of their crypto assets in kind, representing approximately 97% of the proceeds of a stipulated settlement reached between the relevant parties. To expedite closure, on June 20, 2024, GTC distributed the remaining approximately 3% of in-kind assets, worth approximately $50.0 million at the time of the settlement, to Earn users. By stepping in to settle the Earn matters, GTC assumed proprietary right of recovery claims of approximately $50.0 million in addition to the $7.5 million general unsecured creditor claim it already had against Genesis. The aggregate of these amounts was determined to have a book value of $29.5 million, all of which was received in 2024. Commodity Futures Trading Commission Litigation GTC was the subject of a lawsuit that the Commodity Futures Trading Commission (“CFTC”) filed in the Southern District of New York on June 2, 2022. GTC and the CFTC settled the matter by means of a consent order that was filed on January 6, 2025. In material part, the consent order states that GTC violated Section 6(c)(2) of the Commodity Exchange Act by making certain statements to CFTC staff that GTC reasonably should have known were false or misleading, and GTC also failed to disclose certain facts needed to make its statements not false or misleading. Without admitting or denying liability, GTC agreed to pay a $5.0 million civil monetary penalty, and to be permanently enjoined from making false or misleading statements or omitting to state material facts to the CFTC. The Company is also subject to other matters for which it cannot reasonably estimate a range of exposure, if any, to potential associated liabilities incurred. Although occasional adverse decisions or settlements may occur, the Company does not believe that the final disposition of any of these other matters will have a material adverse effect on its results of operations, financial position, or liquidity. The Company cannot give any assurance regarding the ultimate outcome of these matters, and their resolution could be material to the Company's operating results for any particular period.