ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY - Schedule of Activity in the Allowance for Credit Losses by Portfolio Segment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Post adoption of ASC 326
Beginning balance	$ 71,972	$ 72,606	$ 67,773
Provision for credit losses	16,750	5,850	9,375
Loans charged-off	(3,468)	(7,332)	(5,134)
Recoveries	706	848	592
Net loans (charged-off) recovered	(2,762)	(6,484)	(4,542)
Ending balance	85,960	71,972	72,606
Commercial and Industrial \| Total commercial loans
Post adoption of ASC 326
Beginning balance	30,338	35,290	30,595
Provision for credit losses	16,639	1,209	8,646
Loans charged-off	(1,615)	(6,341)	(4,022)
Recoveries	177	180	71
Net loans (charged-off) recovered	(1,438)	(6,161)	(3,951)
Ending balance	45,539	30,338	35,290
Commercial Real Estate and Multi-family Residential \| Total commercial loans
Post adoption of ASC 326
Beginning balance	31,335	27,394	26,535
Provision for credit losses	264	3,619	1,179
Loans charged-off	(840)	0	(597)
Recoveries	106	322	277
Net loans (charged-off) recovered	(734)	322	(320)
Ending balance	30,865	31,335	27,394
Agri-business and Agricultural \| Total commercial loans
Post adoption of ASC 326
Beginning balance	4,150	4,429	5,034
Provision for credit losses	(609)	(279)	(605)
Loans charged-off	0	0	0
Recoveries	0	0	0
Net loans (charged-off) recovered	0	0	0
Ending balance	3,541	4,150	4,429
Other Commercial \| Total commercial loans
Post adoption of ASC 326
Beginning balance	1,129	917	1,146
Provision for credit losses	(386)	212	(229)
Loans charged-off	0	0	0
Recoveries	0	0	0
Net loans (charged-off) recovered	0	0	0
Ending balance	743	1,129	917
Consumer 1-4 Family Mortgage \| Other consumer loans
Post adoption of ASC 326
Beginning balance	3,474	3,001	2,866
Provision for credit losses	(75)	598	125
Loans charged-off	(94)	(163)	(42)
Recoveries	53	38	52
Net loans (charged-off) recovered	(41)	(125)	10
Ending balance	3,358	3,474	3,001
Other Consumer \| Other consumer loans
Post adoption of ASC 326
Beginning balance	1,174	1,021	1,147
Provision for credit losses	906	673	155
Loans charged-off	(919)	(828)	(473)
Recoveries	370	308	192
Net loans (charged-off) recovered	(549)	(520)	(281)
Ending balance	1,531	1,174	1,021
Unallocated
Post adoption of ASC 326
Beginning balance	372	554	450
Provision for credit losses	11	(182)	104
Loans charged-off	0	0	0
Recoveries	0	0	0
Net loans (charged-off) recovered	0	0	0
Ending balance	$ 383	$ 372	$ 554

Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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Amount, excluding accrued interest, of credit loss expense (reversal of expense) on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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