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Disclosures of Fair Values of Financial Instruments - Additional Information (Details) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Allowance for credit losses | $ 70,182,000 | $ 68,675,000 | $ 59,093,000 | $ 54,655,000
Other real estate owned | 2,179,000 | 1,163,000 |  |
Mortgage Servicing Rights |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Finite-lived intangible assets, net | 5,629,000 | 6,859,000 | $ 331,000 |
Mortgage servicing rights (MSR) impairment (recovery) | 7,000 | (8,000) |  |
Fair Value, Nonrecurring |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Carrying amount of loans with a specific allowance | 17,900,000 | 1,200,000 |  |
Fair value of loans with a specific allowance | 16,600,000 | 1,000,000 |  |
Allowance for credit losses | 1,300,000 | 200,000 |  |
Fair Value, Nonrecurring | Carrying Amount |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Other real estate owned | 2,200,000 | 1,200,000 |  |
Fair Value, Nonrecurring | Fair Value |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |
Other real estate owned | $ 48,000 | $ 24,000 |  |

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