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Fair Value Measurement - Nonrecurring (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Balances of the assets and liabilities measured at fair value on a nonrecurring basis |  |  |  |
Loss | $ 900 | $ 4,400 | $ 1,450 |
Nonrecurring |  |  |  |
Balances of the assets and liabilities measured at fair value on a nonrecurring basis |  |  |  |
Loss |  | 4,457 |  | $ 44
Nonrecurring | Individually Evaluated Loans |  |  |  |
Balances of the assets and liabilities measured at fair value on a nonrecurring basis |  |  |  |
Loss |  | 4,457 |  | 44
Level 3 | Nonrecurring |  |  |  |
Balances of the assets and liabilities measured at fair value on a nonrecurring basis |  |  |  |
Assets measured at fair value | 16,222 | 16,222 |  | 91
Level 3 | Nonrecurring | Individually Evaluated Loans |  |  |  |
Balances of the assets and liabilities measured at fair value on a nonrecurring basis |  |  |  |
Assets measured at fair value | $ 16,222 | $ 16,222 |  | $ 91
Level 3 | Nonrecurring | Individually Evaluated Loans | Minimum |  |  |  |
Balances of the assets and liabilities measured at fair value on a nonrecurring basis |  |  |  |
Customized discounting criteria on appraisals (as a percent) |  | 4.00% |  |
Level 3 | Nonrecurring | Individually Evaluated Loans | Maximum |  |  |  |
Balances of the assets and liabilities measured at fair value on a nonrecurring basis |  |  |  |
Customized discounting criteria on appraisals (as a percent) |  | 25.00% |  |

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