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v3.25.3

Allowance for Credit Losses - Additional Information (Detail) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2025 USD ($) Loan | Sep. 30, 2024 USD ($) | Sep. 30, 2025 USD ($) Loan | Sep. 30, 2024 USD ($) | Dec. 31, 2024 USD ($)
Accounts Notes And Loans Receivable [Line Items] |  |  |  |  |
Provision for credit losses | $ 378,000 | $ 1,346,000 | $ 2,797,000 | $ 5,188,000 |
Allowance for credit losses | 378,000 | 1,346,000 | 2,797,000 | 5,188,000 |
Decrease of provisions in net loans |  |  | $ 14,200,000 | 178,200,000 |
Number of days reaching where loans are considered for nonaccrual status |  |  | 90 days |  |
Conditions where loans are considered for nonaccrual status |  |  | A loan may be returned to accruing status only if one of two conditions are met: (1) the loan is well-secured and none of the principal and interest has been past due for a minimum of 90 days or (2) the principal and interest payments are reasonably assured and a sustained period of performance has occurred, generally six months. |  |
Loans modified as troubled debt restructuring | 0 | $ 0 | $ 0 | $ 0 |
Individually evaluated loans |  |  | greater than $350 |  |
Residential mortgages in process of foreclosure | $ 1,263,000 |  | $ 1,263,000 |  | $ 669,000
Number of loan modified | Loan | 1 |  | 2 |  |

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