PORTFOLIO LOANS - Schedule of Activity on the Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Activity in the allowance for loan losses
ACL beginning balance	$ 85,226	$ 91,639	$ 91,740	$ 91,608
Day 1 PCD			1,243
Provision for credit losses	2	364	7,317	1,944
Charged-off	(674)	(1,115)	(16,410)	(3,643)
Recoveries	427	822	1,091	1,801
ACL ending balance	84,981	91,710	84,981	91,710
Commercial loans
Activity in the allowance for loan losses
ACL beginning balance			61,884
ACL ending balance	58,515		58,515
Commercial loans \| C&I and other commercial
Activity in the allowance for loan losses
ACL beginning balance	20,286	24,510	21,256	23,860
Day 1 PCD			824
Provision for credit losses	715	(1,306)	13,958	79
Charged-off	(202)	(758)	(15,433)	(1,733)
Recoveries	210	187	404	427
ACL ending balance	21,009	22,633	21,009	22,633
Commercial loans \| Commercial and Retail Real Estate
Activity in the allowance for loan losses
ACL beginning balance	35,104	33,656	35,465	38,299
Day 1 PCD			322
Provision for credit losses	(1,158)	745	(1,882)	(3,006)
Charged-off	(215)	(102)	(315)	(1,175)
Recoveries	4	392	145	573
ACL ending balance	33,735	34,691	33,735	34,691
Commercial loans \| Real estate construction
Activity in the allowance for loan losses
ACL beginning balance	3,722	5,071	5,163	6,457
Day 1 PCD			0
Provision for credit losses	39	104	(1,449)	(1,404)
Charged-off	0	0	0	0
Recoveries	10	31	57	153
ACL ending balance	3,771	5,206	3,771	5,206
Retail loans
Activity in the allowance for loan losses
ACL beginning balance			29,856
ACL ending balance	26,466		26,466
Retail loans \| Commercial and Retail Real Estate
Activity in the allowance for loan losses
ACL beginning balance	23,729	24,675	26,298	18,193
Day 1 PCD			96
Provision for credit losses	120	674	(2,624)	6,975
Charged-off	(32)	(144)	(159)	(252)
Recoveries	162	128	368	417
ACL ending balance	23,979	25,333	23,979	25,333
Retail loans \| Retail other
Activity in the allowance for loan losses
ACL beginning balance	2,385	3,727	3,558	4,799
Day 1 PCD			1
Provision for credit losses	286	147	(686)	(700)
Charged-off	(225)	(111)	(503)	(483)
Recoveries	41	84	117	231
ACL ending balance	$ 2,487	$ 3,847	$ 2,487	$ 3,847

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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- Definition

Amount excluding accrued interest, of allowance for credit loss on 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
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- Definition

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
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
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- Definition

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
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- Definition

Amount, excluding accrued interest, of allowance for credit loss at acquisition date of financing receivable purchased with credit deterioration. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
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