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, 2025	Dec. 31, 2024
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	$ 2,547,355	$ 2,514,917
Financing Receivable Recorded Investment	3,911,052	3,852,432
Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	574,048	570,638
Financing Receivable Recorded Investment	576,297	572,966
Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	127,711	129,934
Financing Receivable Recorded Investment	130,074	132,986
Non Farm, Non Residential | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	841,518	810,392
Financing Receivable Recorded Investment	843,935	812,871
Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	124,826	146,054
Financing Receivable Recorded Investment	127,469	149,289
All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	553,912	539,333
Financing Receivable Recorded Investment	557,447	542,397
First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	457,735	450,232
Financing Receivable Recorded Investment	459,244	451,681
Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	95,439	89,498
Financing Receivable Recorded Investment	95,770	89,839
Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	67,025	64,712
Financing Receivable Recorded Investment	67,224	64,901
Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	325,340	318,566
Financing Receivable Recorded Investment	326,577	319,711
All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	42,199	44,378
Financing Receivable Recorded Investment	42,438	44,610
Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	652,138	636,572
Financing Receivable Recorded Investment	655,034	639,538
All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	29,400	31,486
Financing Receivable Recorded Investment	29,543	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	19,835	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	4,747	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	496	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	313	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	183
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	2,209	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	1,152	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	707	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	283	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	378	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	2,579	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	6,485	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	303	555
60-89 Days Past Due
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	3,895	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	71	768
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	88
60-89 Days Past Due | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	164
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	185	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	1,122	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	616	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	199	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		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	1,330	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	120	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	5,071	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	1,374	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 | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	576	642
90 Days and Greater Past Due | All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	296
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	982	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	476	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	118	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	304	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	43	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	791	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	111	123
Total Past Due
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	28,801	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	6,192	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	496	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	401	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	923	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	2,690	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	3,256	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	1,799	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	600	747
Total Past Due | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	682	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	2,622	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	8,606	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	534	800
Current
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	3,882,251	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	570,105	571,244
Current | Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	129,578	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	843,534	811,252
Current | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	126,546	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	554,757	540,948
Current | First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	455,988	444,792
Current | Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	93,971	88,137
Current | Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	66,624	64,154
Current | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	325,895	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	39,816	44,477
Current | Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	646,428	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	$ 29,009	$ 30,843