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Balance Sheet Components - Schedule of Accrued Expenses and Other Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
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Other Assets [Abstract] |  |
Accrued expenses | $ 40,394 | $ 37,781
Accrued payroll | 34,081 | 64,514
Accounts payable | 28,765 | 12,381
Beneficial interest liabilities (at fair value) | 10,532 | 10,089
Other liabilities | 6,245 | 3,241
Trailing fee liability (at fair value) | 4,958 | 4,614
Loan servicing liabilities (at fair value) | 1,750 | 1,180
Total accrued expenses and other liabilities | $ 126,725 | $ 133,800

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