ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY INFORMATION - Schedule of Financial Effect of the Modifications (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 54,798	$ 44,279	$ 126,742	$ 79,536
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	30,905	41,527	101,305	73,501
More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	2,515	1,390	3,666	2,344
Commercial | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 32,174	$ 30,773	$ 33,166	$ 63,563
Commercial | Commercial and industrial | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	8 months 23 days	10 months 9 days	8 months 26 days	1 year 3 days
Total	$ 14,874	$ 30,075	$ 15,801	$ 61,803
Commercial | Commercial and industrial | More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.13%	0.01%	0.13%	0.01%
Total	$ 2,500	$ 606	$ 2,565	$ 955
Commercial | Owner-occupied commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total		$ 493	$ 7,820	$ 493
Commercial | Owner-occupied commercial | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	0 years	6 months 14 days	3 months 3 days	6 months 14 days
Total		$ 493	$ 6,912	$ 493
Commercial | Owner-occupied commercial | More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.00%	0.00%	0.01%	0.00%
Total		$ 0	$ 908	$ 0
Commercial | Commercial mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 22,599	$ 83	$ 59,276	$ 83
Commercial | Commercial mortgages | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	3 months 25 days	7 months 2 days	7 months 17 days	7 months 2 days
Total	$ 16,029	$ 83	$ 52,706	$ 83
Commercial | Commercial mortgages | More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.05%	0.00%	0.05%	0.00%
Total	$ 0	$ 0	$ 0	$ 0
Commercial | Construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total		$ 10,620	$ 25,884	$ 10,620
Commercial | Construction | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	0 years	7 months 6 days	7 months 2 days	7 months 6 days
Total		$ 10,620	$ 25,884	$ 10,620
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
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 25	$ 2,310	596	$ 4,777
Consumer | Discontinued Operations, Held-for-Sale
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 1,300		$ 2,300
Consumer | Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Term Extension	5 months 23 days	5 months 23 days	5 months 26 days	5 months 19 days
Total	$ 2	$ 256	$ 2	$ 502
Consumer | More-Than-Insignificant Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
More-Than-Insignificant Payment Delay	0.00%	0.02%	0.00%	0.03%
Total	$ 15	$ 784	$ 193	$ 1,389