CREDIT QUALITY ASSESSMENT - Loans Modified (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	$ 53,202	$ 23,481	$ 61,158	$ 59,832
% of total loan segment	0.50%	0.20%	0.50%	0.50%
Commercial real estate: \| Commercial investor real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	$ 29,477	$ 19,035	$ 35,924	$ 49,782
% of total loan segment	0.60%	0.40%	0.70%	1.00%
Interest rate reduction, Weighted Average	0.00%	1.60%	0.00%	1.50%
Term extension	5 months	7 months	11 months	12 months
Commercial real estate: \| Commercial owner-occupied real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	$ 5,504	$ 859	$ 5,974	$ 3,573
% of total loan segment	0.30%	0.00%	0.30%	0.20%
Interest rate reduction, Weighted Average	0.00%	0.00%	0.00%	0.00%
Term extension	6 months	5 months	6 months	10 months
Commercial real estate: \| Commercial AD&C
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	$ 1,673	$ 0	$ 1,795	$ 1,039
% of total loan segment	0.10%	0.00%	0.10%	0.10%
Interest rate reduction, Weighted Average	2.00%	0.00%	2.00%	0.00%
Term extension			17 months	7 months
Commercial business
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	$ 16,548	$ 3,587	$ 16,926	$ 5,438
% of total loan segment	1.00%	0.20%	1.00%	0.40%
Interest rate reduction, Weighted Average	1.70%	0.00%	1.80%	0.00%
Term extension	8 months	8 months	13 months	13 months
All Other loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	$ 0	$ 0	$ 539	$ 0
% of total loan segment	0.00%	0.00%	0.00%	0.00%
Interest rate reduction, Weighted Average	0.00%	0.00%	0.00%	0.00%
Term extension			9 months
Interest rate reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	$ 1,687	$ 748	$ 1,694	$ 29,088
Interest rate reduction \| Commercial real estate: \| Commercial investor real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	0	748	0	29,088
Interest rate reduction \| Commercial real estate: \| Commercial owner-occupied real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	0	0	0	0
Interest rate reduction \| Commercial real estate: \| Commercial AD&C
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	1,673	0	1,673	0
Interest rate reduction \| Commercial business
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	14	0	21	0
Interest rate reduction \| All Other loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	0	0	0	0
Term extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	51,210	9,037	59,079	17,048
Term extension \| Commercial real estate: \| Commercial investor real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	29,477	4,591	35,924	6,998
Term extension \| Commercial real estate: \| Commercial owner-occupied real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	5,504	859	5,974	3,573
Term extension \| Commercial real estate: \| Commercial AD&C
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	0	0	122	1,039
Term extension \| Commercial business
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	16,229	3,587	16,520	5,438
Term extension \| All Other loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	0	0	539	0
Rate reduction & Term extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	305	13,696	385	13,696
Rate reduction & Term extension \| Commercial real estate: \| Commercial investor real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	0	13,696	0	13,696
Rate reduction & Term extension \| Commercial real estate: \| Commercial owner-occupied real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	0	0	0	0
Rate reduction & Term extension \| Commercial real estate: \| Commercial AD&C
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	0	0	0	0
Rate reduction & Term extension \| Commercial business
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	305	0	385	0
Rate reduction & Term extension \| All Other loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amount	$ 0	$ 0	$ 0	$ 0

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