ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY INFORMATION - Schedule of Financial Effect of the Modifications (Details)	9 Months Ended
Sep. 30, 2023
Commercial \| Commercial and industrial \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	1 year 6 months 18 days
Commercial \| Commercial and industrial \| Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction	4.00%
Commercial \| Commercial and industrial \| More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.09%
Commercial \| Owner-occupied commercial \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	1 year 3 months 7 days
Commercial \| Owner-occupied commercial \| Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction	2.58%
Commercial \| Owner-occupied commercial \| More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.01%
Commercial \| Commercial mortgages \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	1 year 3 months 29 days
Commercial \| Commercial mortgages \| Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction	0.00%
Commercial \| Commercial mortgages \| More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.00%
Commercial \| Construction \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	3 months 7 days
Commercial \| Construction \| Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction	0.00%
Commercial \| Construction \| More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.00%
Residential \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	20 years 2 months 4 days
Residential \| Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction	0.00%
Residential \| More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.00%
Consumer \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	3 years 25 days
Consumer \| Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction	3.27%
Consumer \| More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.07%

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/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

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-42

Reference 3: 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

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 33
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-33

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 34
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481962/310-10-50-34

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+ References

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

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