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Loans and Allowance for Credit Losses - Schedule of Amounts Recognized in Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Mar. 31, 2026	Dec. 31, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024
Accounts Notes And Loans Receivable [Line Items]
Total	$ 5,436,414		$ 4,394,751
Allowance for credit losses	(53,591)	$ (51,455)	(43,949)	$ (40,035)	$ (40,456)	$ (40,304)
Loans, net	5,382,823		4,350,802
Real Estate \| Non-Farm Non-Residential Owner Occupied
Accounts Notes And Loans Receivable [Line Items]
Total	583,989		434,715
Real Estate \| Non-Farm Non-Residential Non-Owner Occupied
Accounts Notes And Loans Receivable [Line Items]
Total	932,147		710,401
Real Estate \| Residential
Accounts Notes And Loans Receivable [Line Items]
Total	530,189		333,419
Real Estate \| Construction, Development & Other
Accounts Notes And Loans Receivable [Line Items]
Total	887,805		823,353
Real Estate \| Farmland
Accounts Notes And Loans Receivable [Line Items]
Total	32,898		26,485
Commercial & Industrial
Accounts Notes And Loans Receivable [Line Items]
Total	2,369,582		1,906,616
Allowance for credit losses	(32,481)	(29,965)	(26,673)	(18,632)	(16,419)	(15,370)
Consumer
Accounts Notes And Loans Receivable [Line Items]
Total	1,871		1,576
Allowance for credit losses	(9)	(12)	(6)	(5)	(7)	(10)
Municipal and Other
Accounts Notes And Loans Receivable [Line Items]
Total	97,933		158,186
Allowance for credit losses	$ (869)	$ (790)	$ (1,011)	$ (748)	$ (402)	$ (520)