ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY INFORMATION - Schedule of Financial Effect of the Modifications (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 40,947	$ 57,449	$ 111,850	$ 125,556
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	37,522	40,005	98,002	103,296
Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total		121		121
More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	136	16,061	3,566	17,950
Commercial | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 16,167	$ 22,206	$ 21,037	$ 83,539
Commercial | Commercial and industrial | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	1 year 10 months 17 days	3 months 21 days	1 year 9 months 7 days	10 months 24 days
Total	$ 15,895	$ 7,021	$ 18,235	$ 66,728
Commercial | Commercial and industrial | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction		6.11%		6.11%
Total		$ 0		$ 0
Commercial | Commercial and industrial | More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.00%	0.11%	0.02%	0.13%
Total	$ 0	$ 15,157	$ 2,500	$ 16,028
Commercial | Owner-occupied commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 3,495		$ 4,360
Commercial | Owner-occupied commercial | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	9 months 21 days		9 months 25 days
Total	$ 484		$ 610
Commercial | Owner-occupied commercial | More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.02%		0.03%
Total	$ 0		$ 739
Commercial | Commercial mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 19,158	$ 14,557	$ 56,980	$ 14,557
Commercial | Commercial mortgages | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	1 year 2 months 4 days	5 months 12 days	9 months 18 days	5 months 12 days
Total	$ 19,158	$ 14,557	$ 50,410	$ 14,557
Commercial | Commercial mortgages | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction		0.00%		0.00%
Total		$ 0		$ 0
Commercial | Commercial mortgages | More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.00%	0.00%	0.05%	0.00%
Total	$ 0	$ 0	$ 0	$ 0
Commercial | Construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 1,714	$ 18,120	$ 28,474	$ 21,294
Commercial | Construction | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	5 months 26 days	2 months 1 day	10 months 13 days	4 months 13 days
Total	$ 1,714	$ 18,120	$ 28,474	$ 21,294
Commercial | Construction | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction		0.00%		0.00%
Total		$ 0		$ 0
Commercial | Construction | More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.00%	0.00%	0.00%	0.00%
Total	$ 0	$ 0	$ 0	$ 0
Residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total		$ 146		$ 146
Residential | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension		0 years		0 years
Total		$ 0		$ 0
Residential | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction		4.25%		4.25%
Total		$ 121		$ 121
Residential | More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay		0.00%		0.00%
Total		$ 25		$ 25
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 413	$ 2,420	$ 999	$ 6,020
Consumer | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	3 years 8 months 4 days	5 months 26 days	1 year 9 months 21 days	5 months 23 days
Total	$ 271	$ 307	$ 273	$ 717
Consumer | Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Interest Rate Reduction		0.00%		0.00%
Total		$ 0		$ 0
Consumer | More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.00%	0.02%	0.01%	0.04%
Total	$ 136	$ 879	$ 327	$ 1,897