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Financial Instruments - Additional Information (Detail) - USD ($) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Carrying value of foreclosed assets held for sale | $ 0 |
Level 3 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Fair value of loans with specific allocated losses | 10,500,000 | $ 168,600,000
Accrued interest receivable reversed | 2,400,000 | 1,100,000
Fair value of foreclosed assets held for sale | $ 30,500,000 | $ 546,000

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