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Loans and Allowance for Credit Losses - Additional information (Details) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 USD ($) loan | Sep. 30, 2023 USD ($) loan | Dec. 31, 2022 USD ($) loan
Loans and Allowance for Credit Losses |  |  |
Accrued interest receivable on loans | $ 10,800,000 | $ 10,800,000 |
Number of loans modified | loan | 0 | 1 | 2
Aggregate outstanding balances of troubled debt restructurings | $ 9,600,000 | $ 9,600,000 | $ 188,000
Forgiveness of principal |  | $ 0 |

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