Loans Held for Investment (LHFI) and Allowance for Loan Losses, LHFI - Summary of Amortized Cost Basis of Loans by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	$ 1,077,482	$ 3,495,006
Term Loans by Origination Year, Before Latest Fiscal Year	3,038,281	1,956,255
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	1,895,505	1,263,132
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	1,106,513	628,618
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	545,501	431,022
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	1,459,560	1,184,453
Financing Receivable, Revolving Loans	1,274,287	1,289,343
Total LHFI	10,397,129	10,247,829
Past Due 90 Days or More [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	13,010	15,819
Commercial and Industrial Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	1,495,060	1,414,279
Commercial and Industrial Loans [Member] | Past Due 90 Days or More [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	234	1,107
State and Other Political Subdivision Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	1,215,023	1,146,251
State and Other Political Subdivision Loans [Member] | Past Due 90 Days or More [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	177	177
Other Commercial Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	457,756	534,843
Other Commercial Loans [Member] | Past Due 90 Days or More [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	91	118
Consumer Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	157,355	162,555
Consumer Loans [Member] | Past Due 90 Days or More [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	169	305
Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	628,331	596,968
Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	513,497	517,683
Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	715,939	726,043
Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	2,975,039	2,977,084
Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Past Due 90 Days or More [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	1,421	1,442
Other Loans Secured by Real Estate [Member] | Other Construction [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	645,628	711,813
Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Total LHFI	1,593,501	1,460,310
Commercial LHFI [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	844,231	2,732,070
Term Loans by Origination Year, Before Latest Fiscal Year	2,342,424	1,665,887
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	1,591,618	1,105,778
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	957,378	505,169
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	432,275	367,347
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	1,121,196	879,827
Financing Receivable, Revolving Loans	866,647	882,970
Total LHFI	8,155,769	8,139,048
Commercial LHFI [Member] | Commercial and Industrial Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	167,830	518,266
Term Loans by Origination Year, Before Latest Fiscal Year	413,733	250,920
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	233,019	75,636
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	68,129	35,179
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	27,318	59,301
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	87,267	36,273
Financing Receivable, Revolving Loans	497,764	438,704
Total LHFI	1,495,060	1,414,279
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Pass - RR 1 through RR 6 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	162,793	503,073
Term Loans by Origination Year, Before Latest Fiscal Year	404,875	249,171
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	232,543	74,239
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	67,420	33,403
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	26,232	50,016
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	79,543	35,883
Financing Receivable, Revolving Loans	467,366	400,423
Total LHFI	1,440,772	1,346,208
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Special Mention - RR 7 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	64	643
Term Loans by Origination Year, Before Latest Fiscal Year	633	365
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	92	147
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	49	550
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	496	48
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	37
Financing Receivable, Revolving Loans	95	99
Total LHFI	1,466	1,852
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Substandard - RR 8 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	4,854	14,530
Term Loans by Origination Year, Before Latest Fiscal Year	8,205	1,338
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	345	1,221
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	637	1,119
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	548	9,237
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	7,683	386
Financing Receivable, Revolving Loans	30,298	38,182
Total LHFI	52,570	66,013
Commercial LHFI [Member] | Commercial and Industrial Loans [Member] | Doubtful - RR 9 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	119	20
Term Loans by Origination Year, Before Latest Fiscal Year	20	46
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	39	29
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	23	107
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	42
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	4	4
Financing Receivable, Revolving Loans	5
Total LHFI	252	206
Commercial LHFI [Member] | State and Other Political Subdivision Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	144,731	381,317
Term Loans by Origination Year, Before Latest Fiscal Year	339,370	148,156
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	145,652	56,987
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	55,930	30,558
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	29,709	95,491
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	495,933	425,333
Financing Receivable, Revolving Loans	3,698	8,409
Total LHFI	1,215,023	1,146,251
Commercial LHFI [Member] | State and Other Political Subdivision Loans [Member] | Pass - RR 1 through RR 6 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	144,731	381,317
Term Loans by Origination Year, Before Latest Fiscal Year	339,370	148,156
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	145,652	56,987
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	55,930	30,558
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	29,709	95,491
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	489,153	418,319
Financing Receivable, Revolving Loans	3,698	8,409
Total LHFI	1,208,243	1,139,237
Commercial LHFI [Member] | State and Other Political Subdivision Loans [Member] | Special Mention - RR 7 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	3,350	3,350
Total LHFI	3,350	3,350
Commercial LHFI [Member] | State and Other Political Subdivision Loans [Member] | Substandard - RR 8 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	3,430	3,664
Total LHFI	3,430	3,664
Commercial LHFI [Member] | Other Commercial Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	18,725	112,095
Term Loans by Origination Year, Before Latest Fiscal Year	88,565	45,392
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	42,148	64,953
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	53,224	8,855
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	7,877	7,924
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	46,737	41,135
Financing Receivable, Revolving Loans	200,480	254,489
Total LHFI	457,756	534,843
Commercial LHFI [Member] | Other Commercial Loans [Member] | Pass - RR 1 through RR 6 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	14,801	103,504
Term Loans by Origination Year, Before Latest Fiscal Year	88,445	38,661
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	42,139	64,871
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	53,179	8,643
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	7,844	7,924
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	46,714	41,112
Financing Receivable, Revolving Loans	191,367	232,476
Total LHFI	444,489	497,191
Commercial LHFI [Member] | Other Commercial Loans [Member] | Special Mention - RR 7 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	3,899	4,059
Financing Receivable, Revolving Loans	9,013	9,013
Total LHFI	12,912	13,072
Commercial LHFI [Member] | Other Commercial Loans [Member] | Substandard - RR 8 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year		4,532
Term Loans by Origination Year, Before Latest Fiscal Year	120	6,681
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	7	82
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	45	212
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	33
Financing Receivable, Revolving Loans	100	13,000
Total LHFI	305	24,507
Commercial LHFI [Member] | Other Commercial Loans [Member] | Doubtful - RR 9 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	25
Term Loans by Origination Year, Before Latest Fiscal Year		50
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	2
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	23	23
Total LHFI	50	73
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	101,097	378,752
Term Loans by Origination Year, Before Latest Fiscal Year	317,146	82,558
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	68,312	24,801
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	12,929	2,219
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	1,721	1,367
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	3,489	2,932
Financing Receivable, Revolving Loans	37,676	26,505
Total LHFI	542,370	519,134
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Pass - RR 1 through RR 6 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	94,785	376,438
Term Loans by Origination Year, Before Latest Fiscal Year	316,855	76,176
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	68,312	21,366
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	9,501	2,189
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	1,692	1,367
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	3,447	2,890
Financing Receivable, Revolving Loans	37,676	26,505
Total LHFI	532,268	506,931
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Special Mention - RR 7 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	6,312	71
Term Loans by Origination Year, Before Latest Fiscal Year		6,382
Total LHFI	6,312	6,453
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Substandard - RR 8 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year		2,243
Term Loans by Origination Year, Before Latest Fiscal Year	291
Term Loans by Origination Year, Two Years Before Latest Fiscal Year		3,435
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	3,428	30
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	29
Total LHFI	3,748	5,708
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Doubtful - RR 9 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	42	42
Total LHFI	42	42
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	11,080	45,062
Term Loans by Origination Year, Before Latest Fiscal Year	41,162	23,562
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	21,207	13,200
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	11,721	9,888
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	8,520	5,783
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	7,250	3,703
Financing Receivable, Revolving Loans	8,354	8,771
Total LHFI	109,294	109,969
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Pass - RR 1 through RR 6 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	10,785	44,208
Term Loans by Origination Year, Before Latest Fiscal Year	40,620	23,269
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	20,974	13,194
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	11,715	9,722
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	8,350	5,737
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	6,895	3,076
Financing Receivable, Revolving Loans	8,354	8,771
Total LHFI	107,693	107,977
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Special Mention - RR 7 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year		111
Term Loans by Origination Year, Before Latest Fiscal Year	106	143
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	99
Total LHFI	205	254
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Substandard - RR 8 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	295	721
Term Loans by Origination Year, Before Latest Fiscal Year	416	150
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	134	6
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	6	166
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	170	46
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	355	627
Total LHFI	1,376	1,716
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Doubtful - RR 9 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year		22
Term Loans by Origination Year, Before Latest Fiscal Year	20
Total LHFI	20	22
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	117,493	257,957
Term Loans by Origination Year, Before Latest Fiscal Year	188,448	105,752
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	143,639	220,487
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	157,489	64,276
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	37,549	6,816
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	55,927	57,070
Financing Receivable, Revolving Loans	15,084	13,350
Total LHFI	715,629	725,708
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member] | Pass - RR 1 through RR 6 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	116,864	256,273
Term Loans by Origination Year, Before Latest Fiscal Year	188,448	105,687
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	143,574	220,487
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	157,489	64,268
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	37,541	6,816
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	55,094	56,196
Financing Receivable, Revolving Loans	15,084	13,350
Total LHFI	714,094	723,077
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member] | Special Mention - RR 7 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year		773
Total LHFI		773
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member] | Substandard - RR 8 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	629	1,684
Term Loans by Origination Year, Before Latest Fiscal Year		65
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	65
Term Loans by Origination Year, Three Years Before Latest Fiscal Year		8
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	8
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	833	101
Total LHFI	1,535	1,858
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	228,267	763,439
Term Loans by Origination Year, Before Latest Fiscal Year	697,122	615,967
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	607,847	624,572
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	596,330	354,194
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	319,581	190,665
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	424,593	313,381
Financing Receivable, Revolving Loans	101,269	114,833
Total LHFI	2,975,009	2,977,051
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Pass - RR 1 through RR 6 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	226,732	750,869
Term Loans by Origination Year, Before Latest Fiscal Year	683,655	604,026
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	596,896	610,446
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	589,462	350,603
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	317,774	183,115
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	403,703	279,529
Financing Receivable, Revolving Loans	101,019	113,808
Total LHFI	2,919,241	2,892,396
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Special Mention - RR 7 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	976	1,510
Term Loans by Origination Year, Before Latest Fiscal Year		9,584
Term Loans by Origination Year, Two Years Before Latest Fiscal Year		412
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	404
Term Loans by Origination Year, Four Years Before Latest Fiscal Year		1,562
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	552	4,522
Total LHFI	1,932	17,590
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Substandard - RR 8 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	518	11,017
Term Loans by Origination Year, Before Latest Fiscal Year	13,467	2,357
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	10,951	13,609
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	6,367	3,591
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	1,807	5,988
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	20,317	29,309
Financing Receivable, Revolving Loans	250	1,025
Total LHFI	53,677	66,896
Commercial LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Doubtful - RR 9 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	41	43
Term Loans by Origination Year, Two Years Before Latest Fiscal Year		105
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	97
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	21	21
Total LHFI	159	169
Commercial LHFI [Member] | Other Loans Secured by Real Estate [Member] | Other Construction [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	55,008	275,182
Term Loans by Origination Year, Before Latest Fiscal Year	256,878	393,580
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	329,794	25,142
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	1,626
Financing Receivable, Revolving Loans	2,322	17,909
Total LHFI	645,628	711,813
Commercial LHFI [Member] | Other Loans Secured by Real Estate [Member] | Other Construction [Member] | Pass - RR 1 through RR 6 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	55,008	273,747
Term Loans by Origination Year, Before Latest Fiscal Year	249,211	393,580
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	329,794	25,142
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	1,626
Financing Receivable, Revolving Loans	2,322	17,909
Total LHFI	637,961	710,378
Commercial LHFI [Member] | Other Loans Secured by Real Estate [Member] | Other Construction [Member] | Substandard - RR 8 [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year		1,435
Term Loans by Origination Year, Before Latest Fiscal Year	7,667
Total LHFI	7,667	1,435
Consumer LHFI [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	233,251	762,936
Term Loans by Origination Year, Before Latest Fiscal Year	695,857	290,368
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	303,887	157,354
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	149,135	123,449
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	113,226	63,675
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	338,364	304,626
Financing Receivable, Revolving Loans	407,640	406,373
Total LHFI	2,241,360	2,108,781
Consumer LHFI [Member] | Consumer Loans [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	20,651	66,452
Term Loans by Origination Year, Before Latest Fiscal Year	52,171	25,775
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	20,005	8,629
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	6,334	4,769
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	3,634	1,307
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	1,210	383
Financing Receivable, Revolving Loans	53,350	55,240
Total LHFI	157,355	162,555
Consumer LHFI [Member] | Consumer Loans [Member] | Current [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	20,328	65,366
Term Loans by Origination Year, Before Latest Fiscal Year	51,874	25,512
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	19,863	8,498
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	6,244	4,734
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	3,612	1,289
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	1,199	378
Financing Receivable, Revolving Loans	52,817	54,518
Total LHFI	155,937	160,295
Consumer LHFI [Member] | Consumer Loans [Member] | Past Due 30-89 Days [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	302	989
Term Loans by Origination Year, Before Latest Fiscal Year	224	223
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	125	123
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	87	22
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	16	10
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	4	5
Financing Receivable, Revolving Loans	380	468
Total LHFI	1,138	1,840
Consumer LHFI [Member] | Consumer Loans [Member] | Past Due 90 Days or More [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	17	26
Term Loans by Origination Year, Before Latest Fiscal Year	5	23
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	4	6
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	1
Financing Receivable, Revolving Loans	141	248
Total LHFI	168	303
Consumer LHFI [Member] | Consumer Loans [Member] | Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	4	71
Term Loans by Origination Year, Before Latest Fiscal Year	68	17
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	13	2
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	2	13
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	6	8
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	7
Financing Receivable, Revolving Loans	12	6
Total LHFI	112	117
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	3,197	51,913
Term Loans by Origination Year, Before Latest Fiscal Year	15,188	16,469
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	51,396	3,073
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	10,779	3,064
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	2,545	797
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	2,856	2,518
Total LHFI	85,961	77,834
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Current [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	3,197	51,849
Term Loans by Origination Year, Before Latest Fiscal Year	15,125	16,204
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	51,140	3,024
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	10,470	3,059
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	2,524	797
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	2,755	2,404
Total LHFI	85,211	77,337
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Past Due 30-89 Days [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Before Latest Fiscal Year		265
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	256	49
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	309	5
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	21
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	9	14
Total LHFI	595	333
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Past Due 90 Days or More [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year		7
Total LHFI		7
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Construction, Land Development and Other Land [Member] | Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year		64
Term Loans by Origination Year, Before Latest Fiscal Year	63
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	92	93
Total LHFI	155	157
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	1,496	21,197
Term Loans by Origination Year, Before Latest Fiscal Year	18,354	11,206
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	8,016	6,235
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	6,004	6,026
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	5,231	3,632
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	10,812	8,285
Financing Receivable, Revolving Loans	354,290	351,133
Total LHFI	404,203	407,714
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Current [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	1,496	21,166
Term Loans by Origination Year, Before Latest Fiscal Year	18,168	11,098
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	7,960	6,119
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	5,910	5,903
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	5,217	3,291
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	10,066	7,853
Financing Receivable, Revolving Loans	350,539	347,743
Total LHFI	399,356	403,173
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Past Due 30-89 Days [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year		5
Term Loans by Origination Year, Before Latest Fiscal Year	162	34
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	8	87
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	67	114
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	5
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	130	145
Financing Receivable, Revolving Loans	1,529	1,214
Total LHFI	1,901	1,599
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Past Due 90 Days or More [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Before Latest Fiscal Year		4
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	24	13
Financing Receivable, Revolving Loans	219	91
Total LHFI	243	108
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Secured by 1-4 Family Residential Properties [Member] | Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year		26
Term Loans by Origination Year, Before Latest Fiscal Year	24	70
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	48	29
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	27	9
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	9	341
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	592	274
Financing Receivable, Revolving Loans	2,003	2,085
Total LHFI	2,703	2,834
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Before Latest Fiscal Year		97
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	95
Term Loans by Origination Year, Three Years Before Latest Fiscal Year		8
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	7	60
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	208	170
Total LHFI	310	335
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member] | Current [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Before Latest Fiscal Year		97
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	95
Term Loans by Origination Year, Three Years Before Latest Fiscal Year		8
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	7	60
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	195	170
Total LHFI	297	335
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Other Real Estate Secured [Member] | Past Due 30-89 Days [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	13
Total LHFI	13
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year		31
Term Loans by Origination Year, Before Latest Fiscal Year	29
Term Loans by Origination Year, Four Years Before Latest Fiscal Year		2
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	1
Total LHFI	30	33
Consumer LHFI [Member] | Loans Secured by Real Estate [Member] | Secured by Nonfarm, Nonresidential Properties [Member] | Current [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year		31
Term Loans by Origination Year, Before Latest Fiscal Year	29
Term Loans by Origination Year, Four Years Before Latest Fiscal Year		2
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	1
Total LHFI	30	33
Consumer LHFI [Member] | Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	207,907	623,343
Term Loans by Origination Year, Before Latest Fiscal Year	610,115	236,821
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	224,375	139,417
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	126,018	109,582
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	101,809	57,877
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	323,277	293,270
Total LHFI	1,593,501	1,460,310
Consumer LHFI [Member] | Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Current [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year	207,907	622,330
Term Loans by Origination Year, Before Latest Fiscal Year	608,256	233,951
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	221,365	137,500
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	124,083	107,345
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	99,446	56,374
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	314,754	285,919
Total LHFI	1,575,811	1,443,419
Consumer LHFI [Member] | Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Past Due 30-89 Days [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year		542
Term Loans by Origination Year, Before Latest Fiscal Year	869	494
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	913	333
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	279	10
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	119	369
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	1,256	714
Total LHFI	3,436	2,462
Consumer LHFI [Member] | Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Past Due 90 Days or More [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year		199
Term Loans by Origination Year, Before Latest Fiscal Year	369	501
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	406	165
Term Loans by Origination Year, Three Years Before Latest Fiscal Year		122
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	9	218
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	306	450
Total LHFI	1,090	1,655
Consumer LHFI [Member] | Other Loans Secured by Real Estate [Member] | Secured by 1-4 Family Residential Properties [Member] | Nonaccrual [Member]
Financing Receivable Recorded Investment [Line Items]
Term Loans by Origination Year, Current Fiscal Year		272
Term Loans by Origination Year, Before Latest Fiscal Year	621	1,875
Term Loans by Origination Year, Two Years Before Latest Fiscal Year	1,691	1,419
Term Loans by Origination Year, Three Years Before Latest Fiscal Year	1,656	2,105
Term Loans by Origination Year, Four Years Before Latest Fiscal Year	2,235	916
Term Loans by Origination Year, Five or More Years Before Latest Fiscal Year	6,961	6,187
Total LHFI	$ 13,164	$ 12,774