ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY - Financial Effect of Loan Modifications (Details) - Commercial and industrial loans - Non-working capital loans - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2023	Jun. 30, 2023
Financing Receivable, Allowance for Credit Loss [Line Items]
Percentage of loans receivable	0.20%	0.20%
Principal Forgiveness
Financing Receivable, Allowance for Credit Loss [Line Items]
Principal Forgiveness	$ 9,380	$ 9,380
Contractual Interest Rate Reduction
Financing Receivable, Allowance for Credit Loss [Line Items]
Weighted-Average Interest Rate Reduction	1.00%	1.00%
Contractual Interest Rate Reduction \| Prime
Financing Receivable, Allowance for Credit Loss [Line Items]
Weighted-Average Interest Rate Reduction	0.75%	0.75%
Extended Maturity
Financing Receivable, Allowance for Credit Loss [Line Items]
Weighted-Average Term Extension	260 months	260 months

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Regulation S-K (SK)
-Number 229
-Section 1405
-Paragraph c
-Publisher SEC

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- Definition

Amortized cost excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

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- Definition

Percentage, excluding accrued interest, of financing receivable modified during period for debtor experiencing financial difficulty to total financing receivables.

+ References

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- Definition

Percentage of decrease in weighted average contractual interest rate of financing receivable modified for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481933/310-10-55-12A

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- Definition

Period of increase in weighted average maturity of financing receivable modified for debtor experiencing financial difficulty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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