Loans Receivable and Allowance for Credit Losses - Schedule of Net Loans (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 4,468,476	$ 4,275,178
Less: Allowance for credit losses	(45,832)	(43,436)	$ (37,588)	$ (34,340)
Net loans receivable	4,422,644	4,231,742
Net deferred loan origination fees (costs) included in the above loan table	$ 2,448	$ 4,463
Percentage of Total	1.000	1.000
Farmland
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 31,869	$ 32,168
Less: Allowance for credit losses	$ (126)	$ (159)	(151)	(221)
Percentage of Total	0.007	0.008
Owner-occupied, nonfarm nonresidential properties
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 493,064	$ 468,493
Less: Allowance for credit losses	$ (3,949)	$ (2,905)	(3,339)	(3,700)
Percentage of Total	0.110	0.110
Agricultural production and other loans to farmers
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 1,652	$ 1,198
Less: Allowance for credit losses	$ (7)	$ (6)	(9)	(24)
Percentage of Total	0	0
Commercial and Industrial
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 726,442	$ 791,911
Less: Allowance for credit losses	$ (9,433)	$ (9,766)	(8,837)	(6,233)
Percentage of Total	0.163	0.185
Obligations (other than securities and leases) of states and political subdivisions
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 152,201	$ 145,345
Less: Allowance for credit losses	$ (2,613)	$ (1,863)	(1,649)	(998)
Percentage of Total	0.034	0.034
Other loans
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 25,507	$ 24,710
Less: Allowance for credit losses	$ (387)	$ (456)	(149)	(68)
Percentage of Total	0.006	0.006
Other construction loans and all land development and other land loans
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 491,539	$ 446,685
Less: Allowance for credit losses	$ (4,033)	$ (3,253)	(2,198)	(1,956)
Percentage of Total	0.110	0.105
Multifamily (5 or more) residential properties
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 254,342	$ 257,696
Less: Allowance for credit losses	$ (1,030)	$ (2,353)	(2,289)	(2,724)
Percentage of Total	0.057	0.060
Non-owner occupied, nonfarm nonresidential properties
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 896,043	$ 795,315
Less: Allowance for credit losses	$ (9,170)	$ (7,653)	(6,481)	(8,658)
Percentage of Total	0.201	0.186
1-4 Family Construction
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 51,207	$ 51,171
Less: Allowance for credit losses	$ (356)	$ (327)	(158)	(82)
Percentage of Total	0.011	0.012
Home equity lines of credit
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 130,700	$ 124,892
Less: Allowance for credit losses	$ (831)	$ (1,173)	(1,169)	(985)
Percentage of Total	0.029	0.029
Residential Mortgages secured by first liens
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 990,986	$ 942,531
Less: Allowance for credit losses	$ (8,050)	$ (8,484)	(6,943)	(4,539)
Percentage of Total	0.222	0.220
Residential Mortgages secured by junior liens
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 91,063	$ 74,638
Less: Allowance for credit losses	$ (1,476)	$ (1,035)	(546)	(241)
Percentage of Total	0.020	0.017
Other revolving credit plans
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 42,877	$ 36,372
Less: Allowance for credit losses	$ (973)	$ (722)	(528)	(507)
Percentage of Total	0.010	0.009
Automobile
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 25,315	$ 21,806
Less: Allowance for credit losses	$ (358)	$ (271)	(263)	(132)
Percentage of Total	0.006	0.005
Other consumer
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 51,592	$ 49,144
Less: Allowance for credit losses	$ (2,653)	$ (2,665)	(2,546)	(2,962)
Percentage of Total	0.011	0.011
Credit cards
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 11,785	$ 10,825
Less: Allowance for credit losses	$ (95)	$ (67)	(92)	(66)
Percentage of Total	0.003	0.003
Overdrafts
Loan Portfolio By Loan Grade [Line Items]
Loans receivable	$ 292	$ 278
Less: Allowance for credit losses	$ (292)	$ (278)	$ (241)	$ (244)
Percentage of Total	0	0