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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Weighted-Average Term Extension (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Weighted-Average Term Extension (Years)	7 years 6 months		1 year 6 months
Loans that had payment default subsequent to modification	$ 0	$ 0	$ 0	$ 0
Commercial Portfolio Segment \| Commercial & industrial and other business loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Weighted-Average Term Extension (Years)	0 years		3 months 18 days
Residential Portfolio Segment \| Consumer mortgage
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Weighted-Average Term Extension (Years)	7 years 6 months		14 years 6 months