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, 2023	Dec. 31, 2022
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	$ 3,141,462	$ 3,075,228
Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	1,997,986	1,978,358
Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	657,319	675,323
Financing Receivable Recorded Investment	659,582	677,522
Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	130,309	125,375
Financing Receivable Recorded Investment	132,336	127,610
Non Farm, Non Residential | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	407,091	386,542
Financing Receivable Recorded Investment	408,098	387,416
Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	112,913	135,500
Financing Receivable Recorded Investment	114,865	137,682
All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	504,403	475,520
Financing Receivable Recorded Investment	507,342	478,442
First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	356,973	346,972
Financing Receivable Recorded Investment	357,990	347,916
Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	63,451	64,119
Financing Receivable Recorded Investment	63,642	64,340
Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	57,653	56,836
Financing Receivable Recorded Investment	57,793	56,976
Multifamily | Commercial
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	185,951	180,098
Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	186,626	180,705
All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	25,171	25,439
Financing Receivable Recorded Investment	25,266	25,523
Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	592,794	555,302
Financing Receivable Recorded Investment	595,149	557,717
All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Loans receivable	32,648	33,237
Financing Receivable Recorded Investment	32,773	33,379
Financial Asset, 30 to 59 Days Past Due [Member]
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	14,906	24,387
Financial Asset, 30 to 59 Days Past Due [Member] | Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,309	1,698
Financial Asset, 30 to 59 Days Past Due [Member] | Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	363	112
Financial Asset, 30 to 59 Days Past Due [Member] | Non Farm, Non Residential | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,292	274
Financial Asset, 30 to 59 Days Past Due [Member] | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	194
Financial Asset, 30 to 59 Days Past Due [Member] | All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment		333
Financial Asset, 30 to 59 Days Past Due [Member] | First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	652	4,528
Financial Asset, 30 to 59 Days Past Due [Member] | Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	172	305
Financial Asset, 30 to 59 Days Past Due [Member] | Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	312	213
Financial Asset, 30 to 59 Days Past Due [Member] | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	146	317
Financial Asset, 30 to 59 Days Past Due [Member] | All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment		1,115
Financial Asset, 30 to 59 Days Past Due [Member] | Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	10,222	15,151
Financial Asset, 30 to 59 Days Past Due [Member] | All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	244	341
Financial Asset, 60 to 89 Days Past Due [Member]
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	2,906	5,629
Financial Asset, 60 to 89 Days Past Due [Member] | Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	128	529
Financial Asset, 60 to 89 Days Past Due [Member] | Non Farm, Non Residential | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment		34
Financial Asset, 60 to 89 Days Past Due [Member] | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	21	1,231
Financial Asset, 60 to 89 Days Past Due [Member] | All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	41
Financial Asset, 60 to 89 Days Past Due [Member] | First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	881	1,203
Financial Asset, 60 to 89 Days Past Due [Member] | Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	133	144
Financial Asset, 60 to 89 Days Past Due [Member] | Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	41	69
Financial Asset, 60 to 89 Days Past Due [Member] | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment		83
Financial Asset, 60 to 89 Days Past Due [Member] | All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment		350
Financial Asset, 60 to 89 Days Past Due [Member] | Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,614	1,930
Financial Asset, 60 to 89 Days Past Due [Member] | All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	47	56
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	7,283	3,397
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,163	726
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,975
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Non Farm, Non Residential | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	100
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,140
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment		14
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	638	1,054
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	145	276
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	282	327
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,250
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	584	985
Financial Asset, Equal to or Greater than 90 Days Past Due [Member] | All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	6	15
Financial Asset, Past Due
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	25,095	33,413
Financial Asset, Past Due | Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	2,600	2,953
Financial Asset, Past Due | Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	2,338	112
Financial Asset, 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	1,392	308
Financial Asset, Past Due | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,355	1,231
Financial Asset, Past Due | All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	41	347
Financial Asset, Past Due | First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	2,171	6,785
Financial Asset, Past Due | Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	450	725
Financial Asset, Past Due | Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	635	609
Financial Asset, Past Due | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	1,396	400
Financial Asset, Past Due | All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment		1,465
Financial Asset, Past Due | Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	12,420	18,066
Financial Asset, Past Due | All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	297	412
Financial Asset, Not Past Due
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	3,116,367	3,041,815
Financial Asset, Not Past Due | Commercial & Industrial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	656,982	674,569
Financial Asset, Not Past Due | Farmland | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	129,998	127,498
Financial Asset, Not 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	406,706	387,108
Financial Asset, Not Past Due | Agriculture | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	113,510	136,451
Financial Asset, Not Past Due | All Other Commercial | Commercial
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	507,301	478,095
Financial Asset, Not Past Due | First Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	355,819	341,131
Financial Asset, Not Past Due | Home Equity | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	63,192	63,615
Financial Asset, Not Past Due | Junior Liens | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	57,158	56,367
Financial Asset, Not Past Due | Multifamily | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	185,230	180,305
Financial Asset, Not Past Due | All Other Residential | Residential
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	25,266	24,058
Financial Asset, Not Past Due | Motor Vehicle | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	582,729	539,651
Financial Asset, Not Past Due | All Other Consumer | Consumer
Aging of recorded investment in loans by past due category and class of loans
Financing Receivable Recorded Investment	$ 32,476	$ 32,967