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Fair Value Measurements - Summary of Carrying Value of Equity Securities Without Readily Determinable Fair Values (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Purchases |  |  | $ 0 | $ 0 |
Specialized Bank Technology Company |  |  |  |  |
Equity Securities Without Readily Determinable Fair Value [Line Items] |  |  |  |  |
Equity interest | $ 2,200 |  | 2,200 |  | $ 2,200
Technology Company |  |  |  |  |
Equity Securities Without Readily Determinable Fair Value [Line Items] |  |  |  |  |
Equity interest | 350 |  | 350 |  | 350
Additional Technology Company |  |  |  |  |
Equity Securities Without Readily Determinable Fair Value [Line Items] |  |  |  |  |
Equity interest | 47 |  | 47 |  | $ 50
Level 3 |  |  |  |  |
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] |  |  |  |  |
Carrying value, beginning of period | 2,622 | $ 2,572 | 2,622 | 2,572 |
Purchases | 0 | 0 |  |  |
Observable price change | (3) | 0 | (3) | 0 |
Carrying value, end of period | $ 2,619 | $ 2,572 | $ 2,619 | $ 2,572 |

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