PORTFOLIO LOANS - Schedule of loans modified under the CARES Act or Interagency Statement (Details) $ in Thousands	12 Months Ended
Dec. 31, 2022 USD ($) contract	Dec. 31, 2021 USD ($) contract	Dec. 31, 2020 contract
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts	4		8
Total COVID-19 loans modifications
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts	9	34
Recorded Investment1 \| $	$ 20,655	$ 128,867
Commercial loans: Interest-only deferrals
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts	3	1	3
Commercial loans: Interest-only deferrals \| Interest-only deferrals
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts	8	32
Recorded Investment1 \| $	$ 20,556	$ 128,730
Retail loans: Mortgage and personal loan deferrals \| Mortgage and personal loan deferrals
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Contracts	1	2
Recorded Investment1 \| $	$ 99	$ 137

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953676-111524

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Amount, after troubled debt restructuring, of modified financing receivable.

+ References

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