Allowance for Credit Losses - Aging of the Recorded Investment in Loans by Past Due Category and Class of Loan (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	$ 2,523,908	$ 2,514,917
Financing Receivable Recorded Investment	3,868,059	3,852,432
Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	581,786	570,638
Financing Receivable Recorded Investment	584,022	572,966
Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	126,963	129,934
Financing Receivable Recorded Investment	128,941	132,986
Non Farm, Non Residential | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	834,132	810,392
Financing Receivable Recorded Investment	836,759	812,871
Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	128,271	146,054
Financing Receivable Recorded Investment	131,872	149,289
All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	537,274	539,333
Financing Receivable Recorded Investment	539,818	542,397
First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	448,202	450,232
Financing Receivable Recorded Investment	449,624	451,681
Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	91,098	89,498
Financing Receivable Recorded Investment	91,435	89,839
Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	65,515	64,712
Financing Receivable Recorded Investment	65,706	64,901
Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	315,482	318,566
Financing Receivable Recorded Investment	316,678	319,711
All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	46,225	44,378
Financing Receivable Recorded Investment	46,466	44,610
Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	643,926	636,572
Financing Receivable Recorded Investment	646,772	639,538
All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	29,824	31,486
Financing Receivable Recorded Investment	29,966	31,643
30-59 Days Past Due
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	16,604	20,844
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	2,104	746
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		598
30-59 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	844	1,619
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	37
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	652	1,297
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	3,664	4,304
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	1,008	639
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	424	356
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	118	529
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	212	25
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	7,131	10,176
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	410	555
60-89 Days Past Due
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	3,730	4,170
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	62	768
60-89 Days Past Due | Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	153
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	452
60-89 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	72	152
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	661	1,361
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	289	157
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	145	101
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	388	74
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	1,452	1,435
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	56	122
90 Days and Greater Past Due
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	2,931	5,460
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	109	208
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		806
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	61
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	638	642
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	266	1,224
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	477	906
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	157	290
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	481	345
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	4	108
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	689	808
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	49	123
Total Past Due
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	23,265	30,474
Total Past Due | Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	2,275	1,722
Total Past Due | Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	153	1,404
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	1,357	1,619
Total Past Due | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	675	642
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	724	1,449
Total Past Due | First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	4,591	6,889
Total Past Due | Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,774	1,702
Total Past Due | Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	726	747
Total Past Due | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	987	948
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	216	133
Total Past Due | Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	9,272	12,419
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	515	800
Current
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	3,844,794	3,821,958
Current | Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	581,747	571,244
Current | Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	128,788	131,582
Current | Non Farm, Non Residential | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	835,402	811,252
Current | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	131,197	148,647
Current | All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	539,094	540,948
Current | First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	445,033	444,792
Current | Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	89,661	88,137
Current | Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	64,980	64,154
Current | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	315,691	318,763
Current | All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	46,250	44,477
Current | Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	637,500	627,119
Current | All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	$ 29,451	$ 30,843