ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY INFORMATION - Troubled Loans Disaggregated by Portfolio Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Modifications [Line Items]
Total	$ 151,288	$ 95,180
% of Total Loan Category	1.15%	0.75%
Term Extension
Financing Receivable, Modifications [Line Items]
Total	$ 90,245	$ 71,329
Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	120	0
More-Than-Insignificant Payment Delay
Financing Receivable, Modifications [Line Items]
Total	18,527	12,676
Combination- Term Extension and Payment Delay
Financing Receivable, Modifications [Line Items]
Total	22,964	10,660
Combination- Term Extension and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	27	321
Combination- Payment Delay and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	19,405	194
Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Total	$ 97,284	$ 60,241
% of Total Loan Category	3.66%	1.90%
Commercial | Commercial and industrial | Term Extension
Financing Receivable, Modifications [Line Items]
Total	$ 62,314	$ 44,123
Commercial | Commercial and industrial | Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Commercial and industrial | More-Than-Insignificant Payment Delay
Financing Receivable, Modifications [Line Items]
Total	15,682	10,523
Commercial | Commercial and industrial | Combination- Term Extension and Payment Delay
Financing Receivable, Modifications [Line Items]
Total	19,261	5,568
Commercial | Commercial and industrial | Combination- Term Extension and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	27	27
Commercial | Commercial and industrial | Combination- Payment Delay and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Owner-occupied commercial
Financing Receivable, Modifications [Line Items]
Total	$ 3,606	$ 204
% of Total Loan Category	0.18%	0.01%
Commercial | Owner-occupied commercial | Term Extension
Financing Receivable, Modifications [Line Items]
Total	$ 3,606	$ 66
Commercial | Owner-occupied commercial | Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Owner-occupied commercial | More-Than-Insignificant Payment Delay
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Owner-occupied commercial | Combination- Term Extension and Payment Delay
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Owner-occupied commercial | Combination- Term Extension and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	138
Commercial | Owner-occupied commercial | Combination- Payment Delay and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Commercial mortgages
Financing Receivable, Modifications [Line Items]
Total	$ 22,421	$ 9,386
% of Total Loan Category	0.56%	0.25%
Commercial | Commercial mortgages | Term Extension
Financing Receivable, Modifications [Line Items]
Total	$ 22,421	$ 9,386
Commercial | Commercial mortgages | Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Commercial mortgages | More-Than-Insignificant Payment Delay
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Commercial mortgages | Combination- Term Extension and Payment Delay
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Commercial mortgages | Combination- Term Extension and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Commercial mortgages | Combination- Payment Delay and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Construction
Financing Receivable, Modifications [Line Items]
Total	$ 20,593	$ 15,411
% of Total Loan Category	2.47%	1.49%
Commercial | Construction | Term Extension
Financing Receivable, Modifications [Line Items]
Total	$ 1,188	$ 15,411
Commercial | Construction | Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Construction | More-Than-Insignificant Payment Delay
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Construction | Combination- Term Extension and Payment Delay
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Construction | Combination- Term Extension and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	0
Commercial | Construction | Combination- Payment Delay and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	19,405	0
Residential
Financing Receivable, Modifications [Line Items]
Total	$ 144	$ 777
% of Total Loan Category	0.01%	0.09%
Residential | Term Extension
Financing Receivable, Modifications [Line Items]
Total	$ 0	$ 561
Residential | Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	120	0
Residential | More-Than-Insignificant Payment Delay
Financing Receivable, Modifications [Line Items]
Total	24	216
Residential | Combination- Term Extension and Payment Delay
Financing Receivable, Modifications [Line Items]
Total	0	0
Residential | Combination- Term Extension and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	0
Residential | Combination- Payment Delay and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	0
Consumer
Financing Receivable, Modifications [Line Items]
Total	$ 7,240	$ 9,161
% of Total Loan Category	0.35%	0.46%
Consumer | Term Extension
Financing Receivable, Modifications [Line Items]
Total	$ 716	$ 1,782
Consumer | Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	0
Consumer | More-Than-Insignificant Payment Delay
Financing Receivable, Modifications [Line Items]
Total	2,821	1,937
Consumer | Combination- Term Extension and Payment Delay
Financing Receivable, Modifications [Line Items]
Total	3,703	5,092
Consumer | Combination- Term Extension and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	0	156
Consumer | Combination- Payment Delay and Interest Rate Reduction
Financing Receivable, Modifications [Line Items]
Total	$ 0	$ 194