LOANS AND ALLOWANCE FOR CREDIT LOSSES - Changes in Allowance for Loan Losses by Loan Segment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Allowance for credit losses - loans
Beginning balance	$ 204,934	$ 223,277	$ 195,397
Provision for credit losses - loans	37,200	7,300	0
CECL Day 1 non-PCD provision for credit losses - loans			13,955
CECL Day 1 PCD ACL - loans			16,599
Recoveries on loans	4,866	2,396	3,927
Loans charged off	(54,243)	(28,039)	(6,601)
Ending balance	192,757	204,934	223,277
Commercial
Allowance for credit losses - loans
Beginning balance	97,348	102,216	69,935
Provision for credit losses - loans	44,455	17,401	16,697
CECL Day 1 non-PCD provision for credit losses - loans			2,957
CECL Day 1 PCD ACL - loans			12,970
Recoveries on loans	3,153	995	872
Loans charged off	(50,199)	(23,264)	(1,215)
Ending balance	94,757	97,348	102,216
Commercial Real Estate
Allowance for credit losses - loans
Beginning balance	44,048	46,839	60,665
Provision for credit losses - loans	7,167	(2,735)	(20,425)
CECL Day 1 non-PCD provision for credit losses - loans			5,539
CECL Day 1 PCD ACL - loans			2,981
Recoveries on loans	236	60	1,096
Loans charged off	(352)	(116)	(3,017)
Ending balance	51,099	44,048	46,839
Construction
Allowance for credit losses - loans
Beginning balance	24,823	28,955	20,206
Provision for credit losses - loans	(15,039)	(4,132)	6,367
CECL Day 1 non-PCD provision for credit losses - loans			871
CECL Day 1 PCD ACL - loans			648
Recoveries on loans	0	0	863
Loans charged off	0	0	0
Ending balance	9,784	24,823	28,955
Consumer & Residential
Allowance for credit losses - loans
Beginning balance	38,715	45,267	44,591
Provision for credit losses - loans	617	(3,234)	(2,639)
CECL Day 1 non-PCD provision for credit losses - loans			4,588
CECL Day 1 PCD ACL - loans			0
Recoveries on loans	1,477	1,341	1,096
Loans charged off	(3,692)	(4,659)	(2,369)
Ending balance	$ 37,117	$ 38,715	$ 45,267

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- Definition

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

+ References

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Amount of increase in allowance for credit loss on financing receivable from purchase of loan. Excludes financing receivable purchased with credit deterioration, loan acquired through business combination or acquisition, and net investment in lease.

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Amount of increase in allowance for credit loss on financing receivable from recovery.

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