LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Risk Rating (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2024	Dec. 31, 2023
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 4,479,692	$ 4,468,476
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total	2,975,477	2,927,203
Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	7,537	95,055
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	99,137	59,027
Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	100	3,250
One fiscal year before current year	3,196	12,897
Two fiscal years before current year	12,411	7,151
Three fiscal years before current year	6,652	1,465
Four fiscal years before current year	1,451	815
More than four fiscal years before current year	8,032	7,605
Revolving Loans Amortized Cost Basis	370	302
Revolving Loans Converted to Term	0	0
Total	32,212	33,485
Current period gross write offs
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Farmland \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	100	3,250
One fiscal year before current year	3,196	12,897
Two fiscal years before current year	12,411	6,845
Three fiscal years before current year	6,652	1,465
Four fiscal years before current year	1,451	815
More than four fiscal years before current year	7,309	6,828
Revolving Loans Amortized Cost Basis	370	302
Revolving Loans Converted to Term	0	0
Total	31,489	32,402
Farmland \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One fiscal year before current year	0	0
Two fiscal years before current year	0	0
Three fiscal years before current year	0	0
Four fiscal years before current year	0	0
More than four fiscal years before current year	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Farmland \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One fiscal year before current year	0	0
Two fiscal years before current year	0	306
Three fiscal years before current year	0	0
Four fiscal years before current year	0	0
More than four fiscal years before current year	723	777
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	723	1,083
Owner-occupied, nonfarm nonresidential properties
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	36,785	65,405
One fiscal year before current year	67,642	132,505
Two fiscal years before current year	131,911	109,616
Three fiscal years before current year	105,566	58,201
Four fiscal years before current year	56,188	56,511
More than four fiscal years before current year	115,655	76,452
Revolving Loans Amortized Cost Basis	21,381	13,220
Revolving Loans Converted to Term	0	0
Total	535,128	511,910
Current period gross write offs
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	699	26
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	699	26
Owner-occupied, nonfarm nonresidential properties \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	36,702	64,237
One fiscal year before current year	66,499	125,894
Two fiscal years before current year	126,820	107,740
Three fiscal years before current year	104,608	44,286
Four fiscal years before current year	42,286	49,366
More than four fiscal years before current year	112,359	73,649
Revolving Loans Amortized Cost Basis	20,644	9,921
Revolving Loans Converted to Term	0	0
Total	509,918	475,093
Owner-occupied, nonfarm nonresidential properties \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	320
One fiscal year before current year	0	6,611
Two fiscal years before current year	235	1,180
Three fiscal years before current year	262	13,623
Four fiscal years before current year	0	407
More than four fiscal years before current year	558	210
Revolving Loans Amortized Cost Basis	550	3,133
Revolving Loans Converted to Term	0	0
Total	1,605	25,484
Owner-occupied, nonfarm nonresidential properties \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	83	848
One fiscal year before current year	1,143	0
Two fiscal years before current year	4,856	696
Three fiscal years before current year	696	292
Four fiscal years before current year	13,902	6,738
More than four fiscal years before current year	2,738	2,593
Revolving Loans Amortized Cost Basis	187	166
Revolving Loans Converted to Term	0	0
Total	23,605	11,333
Agricultural production and other loans to farmers
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	71	703
One fiscal year before current year	603	34
Two fiscal years before current year	31	89
Three fiscal years before current year	67	60
Four fiscal years before current year	52	5
More than four fiscal years before current year	159	159
Revolving Loans Amortized Cost Basis	578	602
Revolving Loans Converted to Term	0	0
Total	1,561	1,652
Current period gross write offs
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Agricultural production and other loans to farmers \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	71	703
One fiscal year before current year	603	34
Two fiscal years before current year	31	89
Three fiscal years before current year	67	60
Four fiscal years before current year	52	5
More than four fiscal years before current year	159	159
Revolving Loans Amortized Cost Basis	578	602
Revolving Loans Converted to Term	0	0
Total	1,561	1,652
Agricultural production and other loans to farmers \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One fiscal year before current year	0	0
Two fiscal years before current year	0	0
Three fiscal years before current year	0	0
Four fiscal years before current year	0	0
More than four fiscal years before current year	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Agricultural production and other loans to farmers \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One fiscal year before current year	0	0
Two fiscal years before current year	0	0
Three fiscal years before current year	0	0
Four fiscal years before current year	0	0
More than four fiscal years before current year	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	58,903	86,043
One fiscal year before current year	61,419	148,366
Two fiscal years before current year	129,547	148,515
Three fiscal years before current year	81,941	33,936
Four fiscal years before current year	28,678	10,277
More than four fiscal years before current year	23,011	16,385
Revolving Loans Amortized Cost Basis	275,908	282,920
Revolving Loans Converted to Term	0	0
Total	659,407	726,442
Current period gross write offs
2024	0	50
2023	0	0
2022	50	0
2021	264	191
2020	1	0
Prior	21	0
Revolving Loans Amortized Cost Basis	1,428	151
Revolving Loans Converted to Term	0	0
Total	1,764	392
Commercial and Industrial \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	58,468	78,325
One fiscal year before current year	58,990	140,178
Two fiscal years before current year	128,375	141,439
Three fiscal years before current year	78,154	33,475
Four fiscal years before current year	28,568	6,662
More than four fiscal years before current year	20,312	14,709
Revolving Loans Amortized Cost Basis	243,138	239,193
Revolving Loans Converted to Term	0	0
Total	616,005	653,981
Commercial and Industrial \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	7,718
One fiscal year before current year	0	7,803
Two fiscal years before current year	717	2,795
Three fiscal years before current year	6	65
Four fiscal years before current year	56	139
More than four fiscal years before current year	56	21
Revolving Loans Amortized Cost Basis	1,956	33,489
Revolving Loans Converted to Term	0	0
Total	2,791	52,030
Commercial and Industrial \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	435	0
One fiscal year before current year	2,429	385
Two fiscal years before current year	455	4,281
Three fiscal years before current year	3,781	396
Four fiscal years before current year	54	3,476
More than four fiscal years before current year	2,643	1,655
Revolving Loans Amortized Cost Basis	30,814	10,238
Revolving Loans Converted to Term	0	0
Total	40,611	20,431
Obligations (other than securities and leases) of states and political subdivisions
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	2,645	24,964
One fiscal year before current year	25,122	16,791
Two fiscal years before current year	16,348	31,768
Three fiscal years before current year	31,098	12,399
Four fiscal years before current year	11,710	4,190
More than four fiscal years before current year	60,318	58,518
Revolving Loans Amortized Cost Basis	3,241	3,571
Revolving Loans Converted to Term	0	0
Total	150,482	152,201
Current period gross write offs
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Obligations (other than securities and leases) of states and political subdivisions \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	2,645	24,964
One fiscal year before current year	25,122	16,791
Two fiscal years before current year	16,348	31,768
Three fiscal years before current year	31,098	12,399
Four fiscal years before current year	11,710	4,190
More than four fiscal years before current year	47,424	45,331
Revolving Loans Amortized Cost Basis	3,241	3,571
Revolving Loans Converted to Term	0	0
Total	137,588	139,014
Obligations (other than securities and leases) of states and political subdivisions \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One fiscal year before current year	0	0
Two fiscal years before current year	0	0
Three fiscal years before current year	0	0
Four fiscal years before current year	0	0
More than four fiscal years before current year	0	13,187
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	13,187
Obligations (other than securities and leases) of states and political subdivisions \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One fiscal year before current year	0	0
Two fiscal years before current year	0	0
Three fiscal years before current year	0	0
Four fiscal years before current year	0	0
More than four fiscal years before current year	12,894	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	12,894	0
Other loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	730	3,649
One fiscal year before current year	3,147	12,211
Two fiscal years before current year	12,183	5,289
Three fiscal years before current year	4,910	1,809
Four fiscal years before current year	1,571	288
More than four fiscal years before current year	278	0
Revolving Loans Amortized Cost Basis	3,507	2,261
Revolving Loans Converted to Term	0	0
Total	26,326	25,507
Current period gross write offs
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Other loans \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	730	3,649
One fiscal year before current year	3,147	12,211
Two fiscal years before current year	12,183	5,289
Three fiscal years before current year	4,910	1,809
Four fiscal years before current year	1,571	288
More than four fiscal years before current year	278	0
Revolving Loans Amortized Cost Basis	3,507	2,261
Revolving Loans Converted to Term	0	0
Total	26,326	25,507
Other loans \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One fiscal year before current year	0	0
Two fiscal years before current year	0	0
Three fiscal years before current year	0	0
Four fiscal years before current year	0	0
More than four fiscal years before current year	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Other loans \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One fiscal year before current year	0	0
Two fiscal years before current year	0	0
Three fiscal years before current year	0	0
Four fiscal years before current year	0	0
More than four fiscal years before current year	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Other construction loans and all land development and other land loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	41,997	92,321
One fiscal year before current year	113,383	197,166
Two fiscal years before current year	179,308	23,484
Three fiscal years before current year	26,341	15,540
Four fiscal years before current year	923	3,255
More than four fiscal years before current year	6,476	1,129
Revolving Loans Amortized Cost Basis	6,274	7,463
Revolving Loans Converted to Term	0	0
Total	374,702	340,358
Current period gross write offs
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Other construction loans and all land development and other land loans \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	41,997	92,321
One fiscal year before current year	113,383	197,166
Two fiscal years before current year	179,308	23,484
Three fiscal years before current year	26,341	15,540
Four fiscal years before current year	923	1,706
More than four fiscal years before current year	5,001	1,129
Revolving Loans Amortized Cost Basis	6,212	7,400
Revolving Loans Converted to Term	0	0
Total	373,165	338,746
Other construction loans and all land development and other land loans \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One fiscal year before current year	0	0
Two fiscal years before current year	0	0
Three fiscal years before current year	0	0
Four fiscal years before current year	0	0
More than four fiscal years before current year	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Other construction loans and all land development and other land loans \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One fiscal year before current year	0	0
Two fiscal years before current year	0	0
Three fiscal years before current year	0	0
Four fiscal years before current year	0	1,549
More than four fiscal years before current year	1,475	0
Revolving Loans Amortized Cost Basis	62	63
Revolving Loans Converted to Term	0	0
Total	1,537	1,612
Multifamily (5 or more) residential properties
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	23,701	51,709
One fiscal year before current year	53,600	127,027
Two fiscal years before current year	145,526	70,261
Three fiscal years before current year	48,542	25,232
Four fiscal years before current year	24,831	10,928
More than four fiscal years before current year	27,423	19,786
Revolving Loans Amortized Cost Basis	469	754
Revolving Loans Converted to Term	0	0
Total	324,092	305,697
Current period gross write offs
2024	0	0
2023	0	0
2022	0	0
2021	0	0
2020	0	0
Prior	0	65
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	65
Multifamily (5 or more) residential properties \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	23,701	49,566
One fiscal year before current year	51,458	127,027
Two fiscal years before current year	145,526	70,261
Three fiscal years before current year	48,542	25,232
Four fiscal years before current year	22,091	10,928
More than four fiscal years before current year	27,182	19,786
Revolving Loans Amortized Cost Basis	469	754
Revolving Loans Converted to Term	0	0
Total	318,969	303,554
Multifamily (5 or more) residential properties \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	1,346
One fiscal year before current year	0	0
Two fiscal years before current year	0	0
Three fiscal years before current year	0	0
Four fiscal years before current year	0	0
More than four fiscal years before current year	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	1,346
Multifamily (5 or more) residential properties \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	797
One fiscal year before current year	2,142	0
Two fiscal years before current year	0	0
Three fiscal years before current year	0	0
Four fiscal years before current year	2,740	0
More than four fiscal years before current year	241	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	5,123	797
Non-owner occupied, nonfarm nonresidential properties
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	37,876	199,121
One fiscal year before current year	204,429	333,867
Two fiscal years before current year	328,454	195,594
Three fiscal years before current year	189,900	50,014
Four fiscal years before current year	46,534	58,416
More than four fiscal years before current year	164,266	136,704
Revolving Loans Amortized Cost Basis	6,782	10,317
Revolving Loans Converted to Term	0	0
Total	978,241	984,033
Current period gross write offs
2024	0	0
2023	0	358
2022	33	0
2021	296	0
2020	0	88
Prior	0	0
Revolving Loans Amortized Cost Basis	20	248
Revolving Loans Converted to Term	0	0
Total	349	694
Non-owner occupied, nonfarm nonresidential properties \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	37,876	198,343
One fiscal year before current year	203,659	332,733
Two fiscal years before current year	327,179	195,106
Three fiscal years before current year	189,900	42,216
Four fiscal years before current year	38,987	55,150
More than four fiscal years before current year	158,157	125,532
Revolving Loans Amortized Cost Basis	4,698	8,174
Revolving Loans Converted to Term	0	0
Total	960,456	957,254
Non-owner occupied, nonfarm nonresidential properties \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	0
One fiscal year before current year	0	0
Two fiscal years before current year	216	0
Three fiscal years before current year	0	1,887
Four fiscal years before current year	1,832	0
More than four fiscal years before current year	665	688
Revolving Loans Amortized Cost Basis	428	433
Revolving Loans Converted to Term	0	0
Total	3,141	3,008
Non-owner occupied, nonfarm nonresidential properties \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	778
One fiscal year before current year	770	1,134
Two fiscal years before current year	1,059	488
Three fiscal years before current year	0	5,911
Four fiscal years before current year	5,715	3,266
More than four fiscal years before current year	5,444	10,484
Revolving Loans Amortized Cost Basis	1,656	1,710
Revolving Loans Converted to Term	0	0
Total	$ 14,644	$ 23,771

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Amount of writeoff of financing receivable, charged against allowance for credit loss.

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Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease.

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Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn.

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Amortized cost excluding accrued interest, of revolving financing receivable converted to term loan.

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