ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY INFORMATION - Schedule of Amortized Cost of Loans Received Term Extension Modification (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 78,186
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	9,611
Loans Modified
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	12,033
Loans Modified | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	101
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	707
Term Extension | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	101
More-Than-Insignificant Payment Delay | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	101
Combination Term Extension & Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	11,225
Combination Term Extension & Payment Delay | Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
Commercial and industrial | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	48,070
Commercial and industrial | Loans Modified | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	10,870
Commercial and industrial | Term Extension | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	707
Commercial and industrial | More-Than-Insignificant Payment Delay | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
Commercial and industrial | Combination Term Extension & Payment Delay | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	10,163
Owner-occupied commercial | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	1,271
Owner-occupied commercial | Loans Modified | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	1,062
Owner-occupied commercial | Term Extension | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
Owner-occupied commercial | More-Than-Insignificant Payment Delay | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
Owner-occupied commercial | Combination Term Extension & Payment Delay | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	1,062
Construction | Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 9,194