Loans and Allowance for Credit Losses - Schedule of Amounts Recognized in Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023
Accounts Notes And Loans Receivable [Line Items]
Total	$ 4,165,116		$ 3,966,425
Allowance for credit losses	(42,563)	$ (40,035)	(40,304)	$ (39,683)	$ (38,211)	$ (37,022)
Loans, net	4,122,553		3,926,121
Real Estate | Non-Farm Non-Residential Owner Occupied
Accounts Notes And Loans Receivable [Line Items]
Total	408,996		448,134
Real Estate | Non-Farm Non-Residential Non-Owner Occupied
Accounts Notes And Loans Receivable [Line Items]
Total	687,924		652,119
Real Estate | Residential
Accounts Notes And Loans Receivable [Line Items]
Total	334,583		336,736
Real Estate | Construction, Development & Other
Accounts Notes And Loans Receivable [Line Items]
Total	826,566		871,373
Real Estate | Farmland
Accounts Notes And Loans Receivable [Line Items]
Total	25,549		30,915
Commercial & Industrial
Accounts Notes And Loans Receivable [Line Items]
Total	1,772,045		1,497,408
Allowance for credit losses	(19,497)	(18,632)	(15,370)	(15,204)	(18,286)	(17,617)
Consumer
Accounts Notes And Loans Receivable [Line Items]
Total	1,291		1,859
Allowance for credit losses	(6)	(5)	(10)	(10)	(14)	(14)
Municipal and Other
Accounts Notes And Loans Receivable [Line Items]
Total	108,162		127,881
Allowance for credit losses	$ (885)	$ (748)	$ (520)	$ (517)	$ (779)	$ (1,101)