ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY INFORMATION - Schedule of Amortized Cost of Loans Received Term Extension Modification (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2026	Jun. 30, 2025
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default	$ 996		$ 5,435
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default	795	$ 3,786	5,435
More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default	201	201
Loans Modified
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default		3,987
Commercial \| More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default		0
Commercial \| Commercial and Industrial \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default	476	476
Commercial \| Commercial and Industrial \| More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default	0	0
Commercial \| Commercial and Industrial \| Loans Modified
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default	476	476
Commercial \| Owner-occupied commercial \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default	319	319
Commercial \| Owner-occupied commercial \| More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default	0	0
Commercial \| Owner-occupied commercial \| Loans Modified
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default	319	319
Commercial \| Commercial mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default			5,435
Commercial \| Commercial mortgages \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default		2,991	$ 5,435
Commercial \| Commercial mortgages \| Loans Modified
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default		2,991
Consumer(3) \| Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default	0	0
Consumer(3) \| More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default	201	201
Consumer(3) \| Loans Modified
Financing Receivable, Troubled Debt Restructuring [Line Items]
Loans modified with subsequent default	$ 201	$ 201