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Loans - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Accounts Notes And Loans Receivable [Line Items]
Total loans	$ 3,014,996	$ 2,861,728
Net deferred loan fees	2,774	2,743
Accrued interest receivable	14,543	12,819
Commercial and Agriculture [Member]
Accounts Notes And Loans Receivable [Line Items]
Total loans	318,499	304,793
Commercial and Agriculture [Member] | Paycheck Protection Program Loans [Member]
Accounts Notes And Loans Receivable [Line Items]
Total loans	$ 251	$ 326

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