LOANS - Summary of Changes in the ACL on Loans (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Changes in allowance for credit losses on loans
Balance, beginning of period	$ 92,690	$ 155,443	$ 111,204	$ 159,319
Provision for credit losses on loans	20,505	17,925	48,724	46,349
Charge-offs	(16,039)	(22,978)	(67,419)	(58,251)
Recoveries	3,730	677	8,377	3,650
Balance, end of period	100,886	151,067	100,886	151,067
Commercial Loan Portfolio
Changes in allowance for credit losses on loans
Charge-offs	(11,000)	(2,524)	(53,637)	(11,918)
Commercial Loan Portfolio \| Commercial
Changes in allowance for credit losses on loans
Balance, beginning of period	34,179	32,236	42,776	29,672
Provision for credit losses on loans	7,841	5,442	17,196	16,435
Charge-offs	(4,301)	(2,492)	(23,762)	(11,190)
Recoveries	1,320	484	2,829	753
Balance, end of period	39,039	35,670	39,039	35,670
Commercial Loan Portfolio \| Commercial real estate
Changes in allowance for credit losses on loans
Balance, beginning of period	27,439	22,197	36,837	20,229
Provision for credit losses on loans	2,678	364	15,817	788
Charge-offs	(3,798)	(32)	(26,974)	(728)
Recoveries	494	1	1,133	2,241
Balance, end of period	26,813	22,530	26,813	22,530
Commercial Loan Portfolio \| Construction and land development
Changes in allowance for credit losses on loans
Balance, beginning of period	2,869	12,966	3,550	4,163
Provision for credit losses on loans	1,480	(907)	(231)	7,895
Charge-offs	(2,901)	0	(2,901)	0
Recoveries	1,122	2	2,152	3
Balance, end of period	2,570	12,061	2,570	12,061
Residential real estate: \| Residential real estate
Changes in allowance for credit losses on loans
Balance, beginning of period	7,104	5,193	8,002	5,553
Provision for credit losses on loans	(711)	255	(1,645)	(138)
Charge-offs	(54)	(159)	(126)	(194)
Recoveries	54	63	162	131
Balance, end of period	6,393	5,352	6,393	5,352
Consumer: \| Consumer
Changes in allowance for credit losses on loans
Balance, beginning of period	5,704	69,563	5,400	86,762
Provision for credit losses on loans	116	9,439	1,352	14,185
Charge-offs	(897)	(17,316)	(2,234)	(39,411)
Recoveries	103	44	508	194
Balance, end of period	5,026	61,730	5,026	61,730
Lease financing
Changes in allowance for credit losses on loans
Balance, beginning of period	15,395	13,288	14,639	12,940
Provision for credit losses on loans	9,101	3,332	16,235	7,184
Charge-offs	(4,088)	(2,979)	(11,422)	(6,728)
Recoveries	637	83	1,593	328
Balance, end of period	$ 21,045	$ 13,724	$ 21,045	$ 13,724

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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Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. 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
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-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 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

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

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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 (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Subparagraph (a)
-Publisher FASB
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