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Loans and Allowance for Credit Losses - Additional Information (Details) - USD ($) |  | 12 Months Ended
--- | --- | ---
Jan. 01, 2021 | Dec. 31, 2023 | Dec. 31, 2022
Loans and Allowance for Credit Losses |  |  |
Interest income |  | $ 0 | $ 0
Non-accrual loans for no related allowance amortized cost |  | $ 792,000 |
Maximum percentage of concessions granted of their respective classes of loan portfolios |  | 2.00% |
Loan modifications |  |  | 2,949,000
Troubled debt restructurings internal grading system substandard |  |  | 1,700,000
Allowance for credit losses | $ 67,300,000 |  |
After-tax effect decreased retained earnings | 14,200,000 |  |
Minimum loan balance with addition to TDR status for classification of loans into Collateral-dependent loans |  | $ 100,000 |
Consumer |  |  |
Loans and Allowance for Credit Losses |  |  |
Loan modifications |  |  | $ 252,000
Consumer | Principal forgiveness |  |  |
Loans and Allowance for Credit Losses |  |  |
Loan paid during period |  | 563,000 |
Commercial business loan | Principal forgiveness |  |  |
Loans and Allowance for Credit Losses |  |  |
Loan paid during period |  | $ 563,000 |
Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Allowance for credit losses | 8,700,000 |  |
Adopted ASC 326 |  |  |
Loans and Allowance for Credit Losses |  |  |
Allowance for credit losses | 11,600,000 |  |
CECL Methodology |  |  |
Loans and Allowance for Credit Losses |  |  |
Allowance for credit losses | 11,600,000 |  |
Allowance for credit loss remaining discount on loan | 1,900,000 |  |
CECL Methodology | Allowance for unfunded commitment |  |  |
Loans and Allowance for Credit Losses |  |  |
Allowance for credit losses | $ 8,700,000 |  |

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