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Commitments and Contingencies - Additional Information (Details) - USD ($) | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Loss Contingencies [Line Items] |  |
Investment in limited partnerships | $ 16,871,000 | $ 14,680,000
SBA loans, probability of future losses | 502,000 | $ 645,000
SBIC Funds |  |
Loss Contingencies [Line Items] |  |
Investments | 15,900,000 |
Investment in limited partnerships | $ 27,000,000 |

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