LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Risk Rating (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2025	Dec. 31, 2024
Financing Receivable, Credit Quality Indicator [Line Items]
Total	$ 6,468,196	$ 4,608,956
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Total	4,030,421	3,022,059
Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Total	42,470	15,824
Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Total	114,915	129,830
Farmland
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	3,132	435
One fiscal year before current year	288	3,165
Two fiscal years before current year	1,543	12,023
Three fiscal years before current year	9,738	6,477
Four fiscal years before current year	6,183	1,436
More than four fiscal years before current year	7,040	7,153
Revolving Loans Amortized Cost Basis	500	410
Revolving Loans Converted to Term	0	0
Total	28,424	31,099
Current period gross write offs
Current fiscal year, writeoff	0	0
One fiscal year before current year writeoff	0	0
Two fiscal years before current year writeoff	0	0
Three fiscal years before current year, writeoff	0	0
Four fiscal years before current year, writeoff	0	0
More than four fiscal years before current year, write offs	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	3,132	265
One fiscal year before current year	124	3,165
Two fiscal years before current year	1,543	6,756
Three fiscal years before current year	4,955	6,477
Four fiscal years before current year	6,183	1,436
More than four fiscal years before current year	6,605	6,662
Revolving Loans Amortized Cost Basis	500	410
Revolving Loans Converted to Term	0	0
Total	23,042	25,171
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	5,267
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	5,267
Farmland \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	170
One fiscal year before current year	164	0
Two fiscal years before current year	0	0
Three fiscal years before current year	4,783	0
Four fiscal years before current year	0	0
More than four fiscal years before current year	435	491
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	5,382	661
Owner-occupied, nonfarm nonresidential properties
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	44,750	88,873
One fiscal year before current year	99,800	63,723
Two fiscal years before current year	83,581	119,350
Three fiscal years before current year	130,176	99,419
Four fiscal years before current year	117,316	39,931
More than four fiscal years before current year	151,794	92,283
Revolving Loans Amortized Cost Basis	11,743	11,629
Revolving Loans Converted to Term	0	0
Total	639,160	515,208
Current period gross write offs
Current fiscal year, writeoff	0	0
One fiscal year before current year writeoff	0	0
Two fiscal years before current year writeoff	0	750
Three fiscal years before current year, writeoff	1,516	0
Four fiscal years before current year, writeoff	0	0
More than four fiscal years before current year, write offs	0	698
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	1,516	1,448
Owner-occupied, nonfarm nonresidential properties \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	44,697	74,692
One fiscal year before current year	85,106	62,609
Two fiscal years before current year	80,838	114,980
Three fiscal years before current year	128,695	98,469
Four fiscal years before current year	116,378	39,931
More than four fiscal years before current year	147,668	90,249
Revolving Loans Amortized Cost Basis	11,033	10,868
Revolving Loans Converted to Term	0	0
Total	614,415	491,798
Owner-occupied, nonfarm nonresidential properties \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	53	0
One fiscal year before current year	0	0
Two fiscal years before current year	578	0
Three fiscal years before current year	239	254
Four fiscal years before current year	242	0
More than four fiscal years before current year	429	527
Revolving Loans Amortized Cost Basis	538	508
Revolving Loans Converted to Term	0	0
Total	2,079	1,289
Owner-occupied, nonfarm nonresidential properties \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	14,181
One fiscal year before current year	14,694	1,114
Two fiscal years before current year	2,165	4,370
Three fiscal years before current year	1,242	696
Four fiscal years before current year	696	0
More than four fiscal years before current year	3,697	1,507
Revolving Loans Amortized Cost Basis	172	253
Revolving Loans Converted to Term	0	0
Total	22,666	22,121
Agricultural production and other loans to farmers
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	85	5,072
One fiscal year before current year	4,864	473
Two fiscal years before current year	426	18
Three fiscal years before current year	10	26
Four fiscal years before current year	12	40
More than four fiscal years before current year	28	148
Revolving Loans Amortized Cost Basis	594	715
Revolving Loans Converted to Term	0	0
Total	6,019	6,492
Current period gross write offs
Current fiscal year, writeoff	0	0
One fiscal year before current year writeoff	0	0
Two fiscal years before current year writeoff	0	0
Three fiscal years before current year, writeoff	0	0
Four fiscal years before current year, writeoff	0	0
More than four fiscal years before current year, write offs	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	85	5,072
One fiscal year before current year	4,864	473
Two fiscal years before current year	426	18
Three fiscal years before current year	10	26
Four fiscal years before current year	12	40
More than four fiscal years before current year	28	148
Revolving Loans Amortized Cost Basis	594	715
Revolving Loans Converted to Term	0	0
Total	6,019	6,492
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
Loans to depository institutions
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0
One fiscal year before current year	7,376
Two fiscal years before current year	0
Three fiscal years before current year	0
Four fiscal years before current year	0
More than four fiscal years before current year	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	7,376	0
Current period gross write offs
Current fiscal year, writeoff	0
One fiscal year before current year writeoff	0
Two fiscal years before current year writeoff	0
Three fiscal years before current year, writeoff	0
Four fiscal years before current year, writeoff	0
More than four fiscal years before current year, write offs	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	0
Loans to depository institutions \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0
One fiscal year before current year	7,376
Two fiscal years before current year	0
Three fiscal years before current year	0
Four fiscal years before current year	0
More than four fiscal years before current year	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	7,376
Loans to depository institutions \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0
One fiscal year before current year	0
Two fiscal years before current year	0
Three fiscal years before current year	0
Four fiscal years before current year	0
More than four fiscal years before current year	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	0
Loans to depository institutions \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0
One fiscal year before current year	0
Two fiscal years before current year	0
Three fiscal years before current year	0
Four fiscal years before current year	0
More than four fiscal years before current year	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term	0
Total	0
Commercial and Industrial
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	120,904	149,421
One fiscal year before current year	116,256	49,280
Two fiscal years before current year	45,106	115,740
Three fiscal years before current year	88,118	65,531
Four fiscal years before current year	47,788	24,621
More than four fiscal years before current year	33,948	20,738
Revolving Loans Amortized Cost Basis	310,616	293,444
Revolving Loans Converted to Term	0	0
Total	762,736	718,775
Current period gross write offs
Current fiscal year, writeoff	0	0
One fiscal year before current year writeoff	0	301
Two fiscal years before current year writeoff	85	116
Three fiscal years before current year, writeoff	0	537
Four fiscal years before current year, writeoff	26	1
More than four fiscal years before current year, write offs	101	43
Revolving Loans Amortized Cost Basis	645	1,428
Revolving Loans Converted to Term	31	0
Total	888	2,426
Commercial and Industrial \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	118,480	148,569
One fiscal year before current year	115,716	44,080
Two fiscal years before current year	40,321	104,613
Three fiscal years before current year	75,182	63,646
Four fiscal years before current year	46,223	24,511
More than four fiscal years before current year	32,907	18,771
Revolving Loans Amortized Cost Basis	267,920	249,949
Revolving Loans Converted to Term	0	0
Total	696,749	654,139
Commercial and Industrial \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	0	7
One fiscal year before current year	238	55
Two fiscal years before current year	806	139
Three fiscal years before current year	2,253	424
Four fiscal years before current year	1,521	61
More than four fiscal years before current year	25	32
Revolving Loans Amortized Cost Basis	3,346	3,603
Revolving Loans Converted to Term	0	0
Total	8,189	4,321
Commercial and Industrial \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	2,424	845
One fiscal year before current year	302	5,145
Two fiscal years before current year	3,979	10,988
Three fiscal years before current year	10,683	1,461
Four fiscal years before current year	44	49
More than four fiscal years before current year	1,016	1,935
Revolving Loans Amortized Cost Basis	39,350	39,892
Revolving Loans Converted to Term	0	0
Total	57,798	60,315
Obligations (other than securities and leases) of states and political subdivisions
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	937	7,999
One fiscal year before current year	6,621	24,754
Two fiscal years before current year	30,106	15,756
Three fiscal years before current year	19,050	30,419
Four fiscal years before current year	39,853	11,411
More than four fiscal years before current year	75,986	45,882
Revolving Loans Amortized Cost Basis	4,570	4,209
Revolving Loans Converted to Term	0	0
Total	177,123	140,430
Current period gross write offs
Current fiscal year, writeoff	0	0
One fiscal year before current year writeoff	0	0
Two fiscal years before current year writeoff	0	0
Three fiscal years before current year, writeoff	0	0
Four fiscal years before current year, writeoff	0	0
More than four fiscal years before current year, write offs	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	937	7,999
One fiscal year before current year	6,621	24,754
Two fiscal years before current year	30,106	15,756
Three fiscal years before current year	19,050	30,419
Four fiscal years before current year	39,853	11,411
More than four fiscal years before current year	75,986	45,882
Revolving Loans Amortized Cost Basis	4,570	4,209
Revolving Loans Converted to Term	0	0
Total	177,123	140,430
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	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 \| 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 loans
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	23,571	2,134
One fiscal year before current year	911	3,382
Two fiscal years before current year	2,928	12,291
Three fiscal years before current year	12,124	4,602
Four fiscal years before current year	4,542	1,341
More than four fiscal years before current year	1,408	274
Revolving Loans Amortized Cost Basis	3,643	4,086
Revolving Loans Converted to Term	0	0
Total	49,127	28,110
Current period gross write offs
Current fiscal year, writeoff	0	0
One fiscal year before current year writeoff	0	0
Two fiscal years before current year writeoff	0	0
Three fiscal years before current year, writeoff	0	0
Four fiscal years before current year, writeoff	0	0
More than four fiscal years before current year, write offs	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	23,571	2,134
One fiscal year before current year	911	3,382
Two fiscal years before current year	2,928	12,291
Three fiscal years before current year	12,124	4,602
Four fiscal years before current year	4,542	1,341
More than four fiscal years before current year	1,408	274
Revolving Loans Amortized Cost Basis	2,493	4,086
Revolving Loans Converted to Term	0	0
Total	47,977	28,110
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	1,150	0
Revolving Loans Converted to Term	0	0
Total	1,150	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	94,011	112,919
One fiscal year before current year	133,376	58,596
Two fiscal years before current year	89,747	99,268
Three fiscal years before current year	48,823	3,141
Four fiscal years before current year	7,167	749
More than four fiscal years before current year	4,283	3,321
Revolving Loans Amortized Cost Basis	5,866	4,918
Revolving Loans Converted to Term	0	0
Total	383,273	282,912
Current period gross write offs
Current fiscal year, writeoff	0	0
One fiscal year before current year writeoff	0	0
Two fiscal years before current year writeoff	0	0
Three fiscal years before current year, writeoff	0	0
Four fiscal years before current year, writeoff	0	0
More than four fiscal years before current year, write offs	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	11
Total	0	11
Other construction loans and all land development and other land loans \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	83,896	112,919
One fiscal year before current year	130,942	58,596
Two fiscal years before current year	70,202	99,268
Three fiscal years before current year	48,668	3,141
Four fiscal years before current year	7,167	749
More than four fiscal years before current year	2,896	1,875
Revolving Loans Amortized Cost Basis	5,866	4,918
Revolving Loans Converted to Term	0	0
Total	349,637	281,466
Other construction loans and all land development and other land loans \| Special mention
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	10,115	0
One fiscal year before current year	0	0
Two fiscal years before current year	19,545	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	29,660	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	2,434	0
Two fiscal years before current year	0	0
Three fiscal years before current year	155	0
Four fiscal years before current year	0	0
More than four fiscal years before current year	1,387	1,446
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	3,976	1,446
Multifamily (5 or more) residential properties
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	128,261	46,905
One fiscal year before current year	49,035	51,987
Two fiscal years before current year	86,408	194,386
Three fiscal years before current year	298,774	67,500
Four fiscal years before current year	89,032	23,407
More than four fiscal years before current year	70,622	25,037
Revolving Loans Amortized Cost Basis	2,799	1,924
Revolving Loans Converted to Term	0	0
Total	724,931	411,146
Current period gross write offs
Current fiscal year, writeoff	0	0
One fiscal year before current year writeoff	0	0
Two fiscal years before current year writeoff	0	0
Three fiscal years before current year, writeoff	1,072	0
Four fiscal years before current year, writeoff	0	0
More than four fiscal years before current year, write offs	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	1,072	0
Multifamily (5 or more) residential properties \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	122,517	46,905
One fiscal year before current year	48,980	49,880
Two fiscal years before current year	86,226	173,994
Three fiscal years before current year	298,774	67,500
Four fiscal years before current year	89,032	20,706
More than four fiscal years before current year	70,622	25,037
Revolving Loans Amortized Cost Basis	2,799	1,924
Revolving Loans Converted to Term	0	0
Total	718,950	385,946
Multifamily (5 or more) residential 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	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
Multifamily (5 or more) residential properties \| Substandard
Financing Receivable, Credit Quality Indicator [Line Items]
Current fiscal year	5,744	0
One fiscal year before current year	55	2,107
Two fiscal years before current year	182	20,392
Three fiscal years before current year	0	0
Four fiscal years before current year	0	2,701
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	5,981	25,200
Non-owner occupied, nonfarm nonresidential properties
Financing Receivable, Credit Quality Indicator [Line Items]

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- Definition

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

+ References

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-Name Accounting Standards Codification
-Section 50
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
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-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
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-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

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