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Loans - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Accounts Notes And Loans Receivable [Line Items]
Total loans	$ 3,043,946	$ 2,861,728
Net deferred loan fees	2,704	2,743
Accrued interest receivable	9,688	8,414
Commercial and Agriculture [Member]
Accounts Notes And Loans Receivable [Line Items]
Total loans	304,639	304,793
Commercial and Agriculture [Member] | Paycheck Protection Program Loans [Member]
Accounts Notes And Loans Receivable [Line Items]
Total loans	$ 214	$ 326

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