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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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