Allowance for Credit Losses - Aging of the Recorded Investment in Loans by Past Due Category and Class of Loan (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	$ 2,018,416	$ 2,008,433
Financing Receivable Recorded Investment	3,214,137	3,178,373
Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	533,605	649,524
Financing Receivable Recorded Investment	535,887	652,093
Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	128,423	130,606
Financing Receivable Recorded Investment	130,530	133,406
Non Farm, Non Residential | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	537,727	437,661
Financing Receivable Recorded Investment	539,365	439,009
Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	126,771	138,022
Financing Receivable Recorded Investment	129,242	141,041
All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	456,120	461,713
Financing Receivable Recorded Investment	459,130	464,776
First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	363,815	358,166
Financing Receivable Recorded Investment	365,071	359,292
Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	67,512	65,581
Financing Receivable Recorded Investment	67,747	65,810
Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	59,592	58,663
Financing Receivable Recorded Investment	59,768	58,833
Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	235,770	190,907
Financing Receivable Recorded Investment	236,684	191,734
All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	21,354	22,471
Financing Receivable Recorded Investment	21,447	22,562
Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	635,242	614,559
Financing Receivable Recorded Investment	638,209	617,448
All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	30,889	32,199
Financing Receivable Recorded Investment	31,057	32,369
30-59 Days Past Due
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	12,633	17,948
30-59 Days Past Due | Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	616	668
30-59 Days Past Due | Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	362	58
30-59 Days Past Due | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	262
30-59 Days Past Due | All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	14
30-59 Days Past Due | First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	678	2,841
30-59 Days Past Due | Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	314	360
30-59 Days Past Due | Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	384	462
30-59 Days Past Due | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment		117
30-59 Days Past Due | All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment		554
30-59 Days Past Due | Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	9,561	12,491
30-59 Days Past Due | All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	442	397
60-89 Days Past Due
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	4,739	3,612
60-89 Days Past Due | Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,273	488
60-89 Days Past Due | Non Farm, Non Residential | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	304
60-89 Days Past Due | First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	921	816
60-89 Days Past Due | Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	389	188
60-89 Days Past Due | Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	60	124
60-89 Days Past Due | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	166	140
60-89 Days Past Due | All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	211
60-89 Days Past Due | Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,312	1,754
60-89 Days Past Due | All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	103	102
90 Days and Greater Past Due
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	6,876	5,929
90 Days and Greater Past Due | Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,844	1,136
90 Days and Greater Past Due | Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,202	1,201
90 Days and Greater Past Due | Non Farm, Non Residential | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	114
90 Days and Greater Past Due | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	930	1,141
90 Days and Greater Past Due | First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	876	924
90 Days and Greater Past Due | Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	220	71
90 Days and Greater Past Due | Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	283	262
90 Days and Greater Past Due | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	373	373
90 Days and Greater Past Due | All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	377	47
90 Days and Greater Past Due | Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	590	761
90 Days and Greater Past Due | All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	67	13
Total Past Due
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	24,248	27,489
Total Past Due | Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	3,733	2,292
Total Past Due | Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,564	1,259
Total Past Due | Non Farm, Non Residential | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	418
Total Past Due | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,192	1,141
Total Past Due | All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	14
Total Past Due | First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	2,475	4,581
Total Past Due | Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	923	619
Total Past Due | Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	727	848
Total Past Due | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	539	630
Total Past Due | All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	588	601
Total Past Due | Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	11,463	15,006
Total Past Due | All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	612	512
Current
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	3,189,889	3,150,884
Current | Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	532,154	649,801
Current | Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	128,966	132,147
Current | Non Farm, Non Residential | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	538,947	439,009
Current | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	128,050	139,900
Current | All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	459,116	464,776
Current | First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	362,596	354,711
Current | Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	66,824	65,191
Current | Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	59,041	57,985
Current | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	236,145	191,104
Current | All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	20,859	21,961
Current | Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	626,746	602,442
Current | All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	$ 30,445	$ 31,857