LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Aging of Recorded Investment in Past Due Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 4,479,692	$ 4,468,476
30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	6,296	3,980
60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	5,731	3,231
Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	8,973	8,298
Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	21,000	15,509
Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	4,458,692	4,452,967
Farmland
Financing Receivable, Past Due [Line Items]
Loans receivable	32,212	33,485
Farmland | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	173	0
Farmland | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	182
Farmland | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	129
Farmland | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	173	311
Farmland | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	32,039	33,174
Owner-occupied, nonfarm nonresidential properties
Financing Receivable, Past Due [Line Items]
Loans receivable	535,128	511,910
Owner-occupied, nonfarm nonresidential properties | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	120
Owner-occupied, nonfarm nonresidential properties | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	272	0
Owner-occupied, nonfarm nonresidential properties | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	738	1,390
Owner-occupied, nonfarm nonresidential properties | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,010	1,510
Owner-occupied, nonfarm nonresidential properties | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	534,118	510,400
Agricultural production and other loans to farmers
Financing Receivable, Past Due [Line Items]
Loans receivable	1,561	1,652
Agricultural production and other loans to farmers | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Agricultural production and other loans to farmers | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Agricultural production and other loans to farmers | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Agricultural production and other loans to farmers | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Agricultural production and other loans to farmers | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,561	1,652
Commercial and Industrial
Financing Receivable, Past Due [Line Items]
Loans receivable	659,407	726,442
Commercial and Industrial | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	253	64
Commercial and Industrial | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	3,550	379
Commercial and Industrial | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,928	314
Commercial and Industrial | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	5,731	757
Commercial and Industrial | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	653,676	725,685
Obligations (other than securities and leases) of states and political subdivisions
Financing Receivable, Past Due [Line Items]
Loans receivable	150,482	152,201
Obligations (other than securities and leases) of states and political subdivisions | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Obligations (other than securities and leases) of states and political subdivisions | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Obligations (other than securities and leases) of states and political subdivisions | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Obligations (other than securities and leases) of states and political subdivisions | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Obligations (other than securities and leases) of states and political subdivisions | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	150,482	152,201
Other loans
Financing Receivable, Past Due [Line Items]
Loans receivable	26,326	25,507
Other loans | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Other loans | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Other loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Other loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Other loans | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	26,326	25,507
Other construction loans and all land development and other land loans
Financing Receivable, Past Due [Line Items]
Loans receivable	374,702	340,358
Other construction loans and all land development and other land loans | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	38	0
Other construction loans and all land development and other land loans | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	41
Other construction loans and all land development and other land loans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,537	1,612
Other construction loans and all land development and other land loans | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,575	1,653
Other construction loans and all land development and other land loans | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	373,127	338,705
Multifamily (5 or more) residential properties
Financing Receivable, Past Due [Line Items]
Loans receivable	324,092	305,697
Multifamily (5 or more) residential properties | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Multifamily (5 or more) residential properties | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	492	0
Multifamily (5 or more) residential properties | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	541	305
Multifamily (5 or more) residential properties | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,033	305
Multifamily (5 or more) residential properties | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	323,059	305,392
Non-owner occupied, nonfarm nonresidential properties
Financing Receivable, Past Due [Line Items]
Loans receivable	978,241	984,033
Non-owner occupied, nonfarm nonresidential properties | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	307	95
Non-owner occupied, nonfarm nonresidential properties | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	299
Non-owner occupied, nonfarm nonresidential properties | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,831	2,031
Non-owner occupied, nonfarm nonresidential properties | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	2,138	2,425
Non-owner occupied, nonfarm nonresidential properties | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	976,103	981,608
1-4 Family Construction
Financing Receivable, Past Due [Line Items]
Loans receivable	20,408	28,055
1-4 Family Construction | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
1-4 Family Construction | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
1-4 Family Construction | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
1-4 Family Construction | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
1-4 Family Construction | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	20,408	28,055
Home equity lines of credit
Financing Receivable, Past Due [Line Items]
Loans receivable	144,018	130,700
Home equity lines of credit | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	951	582
Home equity lines of credit | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	11	682
Home equity lines of credit | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	292	339
Home equity lines of credit | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,254	1,603
Home equity lines of credit | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	142,764	129,097
Residential Mortgages secured by first liens
Financing Receivable, Past Due [Line Items]
Loans receivable	1,006,163	1,005,335
Residential Mortgages secured by first liens | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	3,565	2,360
Residential Mortgages secured by first liens | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,084	1,094
Residential Mortgages secured by first liens | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,427	1,651
Residential Mortgages secured by first liens | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	6,076	5,105
Residential Mortgages secured by first liens | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,000,087	1,000,230
Residential Mortgages secured by junior liens
Financing Receivable, Past Due [Line Items]
Loans receivable	98,085	91,240
Residential Mortgages secured by junior liens | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	77	21
Residential Mortgages secured by junior liens | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	38
Residential Mortgages secured by junior liens | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	60	60
Residential Mortgages secured by junior liens | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	137	119
Residential Mortgages secured by junior liens | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	97,948	91,121
Other revolving credit plans
Financing Receivable, Past Due [Line Items]
Loans receivable	41,359	42,877
Other revolving credit plans | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	201	114
Other revolving credit plans | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	41
Other revolving credit plans | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	18	14
Other revolving credit plans | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	219	169
Other revolving credit plans | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	41,140	42,708
Automobile
Financing Receivable, Past Due [Line Items]
Loans receivable	22,387	25,315
Automobile | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	38	62
Automobile | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	28	5
Automobile | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	163	67
Automobile | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	229	134
Automobile | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	22,158	25,181
Other consumer
Financing Receivable, Past Due [Line Items]
Loans receivable	51,644	51,592
Other consumer | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	537	452
Other consumer | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	227	453
Other consumer | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	326	354
Other consumer | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	1,090	1,259
Other consumer | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	50,554	50,333
Credit cards
Financing Receivable, Past Due [Line Items]
Loans receivable	13,259	11,785
Credit cards | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	156	110
Credit cards | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	67	17
Credit cards | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	112	32
Credit cards | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	335	159
Credit cards | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	12,924	11,626
Overdrafts
Financing Receivable, Past Due [Line Items]
Loans receivable	218	292
Overdrafts | 30 - 59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Overdrafts | 60 - 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Overdrafts | Greater Than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Overdrafts | Total Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	0	0
Overdrafts | Loans Receivable Not Past Due
Financing Receivable, Past Due [Line Items]
Loans receivable	$ 218	$ 292