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Selected Balance Sheet Data - Schedule of Other Assets (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2024 | Dec. 31, 2023 | Sep. 30, 2025 | Dec. 31, 2024
Other Assets [Line Items] |  |  |  |
Other assets, current |  |  | $ 17,449 | $ 15,543
Other assets, non-current |  |  | $ 25,158 | 23,626
Preferred Stock |  |  |  |
Other Assets [Line Items] |  |  |  |
Purchase of investments | $ 9,500 |  |  |
Treasury note term |  |  | 1 year |
Investments in convertible notes |  |  |  |
Other Assets [Line Items] |  |  |  |
Purchase of investments |  | $ 5,000 |  |
Security deposits |  |  |  |
Other Assets [Line Items] |  |  |  |
Other assets, current |  |  | $ 0 | 0
Other assets, non-current |  |  | 1,258 | 1,300
Employee notes receivable |  |  |  |
Other Assets [Line Items] |  |  |  |
Other assets, current |  |  | 144 | 28
Other assets, non-current |  |  | 14 | 88
Securities, held-to-maturity |  |  |  |
Other Assets [Line Items] |  |  |  |
Other assets, current |  |  | 0 | 0
Other assets, non-current |  |  | 9,500 | 9,500
Loan performance fee receivable |  |  |  |
Other Assets [Line Items] |  |  |  |
Other assets, current |  |  | 4,300 | 3,310
Other assets, non-current |  |  | 14,169 | 12,529
Investments in convertible notes |  |  |  |
Other Assets [Line Items] |  |  |  |
Other assets, current |  |  | 5,944 | 6,347
Other assets, non-current |  |  | 0 | 0
Other |  |  |  |
Other Assets [Line Items] |  |  |  |
Other assets, current |  |  | 7,061 | 5,858
Other assets, non-current |  |  | $ 217 | $ 209

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