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PORTFOLIO LOANS - Schedule of activity on the allowance for loan losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Activity in the allowance for loan losses
ACL beginning balance	$ 91,740	$ 91,608
Provision for credit losses	5,038	953
Charged-off	(5,460)	(1,181)
Recoveries	244	347
ACL ending balance	91,562	91,727
C&I and other commercial
Activity in the allowance for loan losses
ACL beginning balance	21,256	23,860
Provision for credit losses	10,125	695
Charged-off	(5,218)	(400)
Recoveries	44	121
ACL ending balance	26,207	24,276
Commercial real estate
Activity in the allowance for loan losses
ACL beginning balance	35,465	38,299
Provision for credit losses	(1,864)	(3,359)
Charged-off	(96)	(539)
Recoveries	0	20
ACL ending balance	33,505	34,421
Real estate construction
Activity in the allowance for loan losses
ACL beginning balance	5,163	6,457
Provision for credit losses	(491)	(1,329)
Charged-off	0	0
Recoveries	41	31
ACL ending balance	4,713	5,159
Retail real estate
Activity in the allowance for loan losses
ACL beginning balance	26,298	18,193
Provision for credit losses	(2,093)	5,948
Charged-off	(52)	(5)
Recoveries	128	119
ACL ending balance	24,281	24,255
Retail other
Activity in the allowance for loan losses
ACL beginning balance	3,558	4,799
Provision for credit losses	(639)	(1,002)
Charged-off	(94)	(237)
Recoveries	31	56
ACL ending balance	$ 2,856	$ 3,616

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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
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

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

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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
-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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- 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
-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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