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Accounts Receivable, Net - Schedule of Accounts Receivable, Net of Allowance (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for transaction losses		$ (15,697)	$ (12,304)	$ (10,268)	$ (10,601)	$ (12,601)	$ (20,273)
Total accounts receivable, net of allowance	[1]	84,215		65,368
Credit card receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, before allowances		82,709		65,821
Allowance for transaction losses		(8,671)	(6,969)	(6,563)	(6,159)	(6,102)	(4,251)
Accrued interest receivable		400		300
Retail receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, before allowances		10,024		4,402
Allowance for transaction losses		(7,026)	(5,139)	(3,780)	(4,365)	(6,532)	(15,988)
Custody fees receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, before allowances		2,364		1,608
Staking fees receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, before allowances		1,213		936
Allowance for transaction losses		0	0	0
Other fees receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, before allowances		3,602		2,869
Allowance for transaction losses		0	$ (196)	75	$ (77)	$ 33	$ (34)
In-transit receivables
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, before allowances		$ 1,500		$ 1,800
[1] (1) Includes related party amounts of $0.2 million in Accounts receivable, net as of both September 30, 2025 and December 31, 2024, as outlined in Note 21. Related Party Transactions.

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