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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Performance of Loan Modifications (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
Loan modifications amount			$ 6,178
Total Class of Financing Receivable (in percent)	0.00%	0.19%	0.06%	0.23%
Financial Asset, Not Past Due
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			$ 2,222
Past Due 30 - 89 Days
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			0
90+ Days Past Due and Still Accruing
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			0
Non-Accrual
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			3,956
Term Extension
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount	$ 52	$ 1,226	$ 6,049	$ 5,367
Other Payment Delay
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount		$ 17,875		$ 17,875
Commercial Portfolio Segment \| CRE - owner occupied
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total Class of Financing Receivable (in percent)	0.00%	0.11%	0.00%	0.17%
Commercial Portfolio Segment \| CRE - owner occupied \| Term Extension
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount	$ 0	$ 926	$ 0	$ 1,490
Commercial Portfolio Segment \| CRE - owner occupied \| Other Payment Delay
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount		$ 0		$ 0
Commercial Portfolio Segment \| CRE - non-owner occupied
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total Class of Financing Receivable (in percent)	0.00%	1.03%	0.00%	1.22%
Commercial Portfolio Segment \| CRE - non-owner occupied \| Term Extension
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount	$ 0	$ 0	$ 0	$ 3,222
Commercial Portfolio Segment \| CRE - non-owner occupied \| Other Payment Delay
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount		$ 17,875		$ 17,875
Commercial Portfolio Segment \| Commercial & industrial and other business loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			$ 5,707
Total Class of Financing Receivable (in percent)	0.00%	0.00%	0.46%	0.00%
Commercial Portfolio Segment \| Commercial & industrial and other business loans \| Financial Asset, Not Past Due
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			$ 2,171
Commercial Portfolio Segment \| Commercial & industrial and other business loans \| Past Due 30 - 89 Days
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			0
Commercial Portfolio Segment \| Commercial & industrial and other business loans \| 90+ Days Past Due and Still Accruing
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			0
Commercial Portfolio Segment \| Commercial & industrial and other business loans \| Non-Accrual
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			3,536
Commercial Portfolio Segment \| Commercial & industrial and other business loans \| Term Extension
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount	$ 0	$ 300	5,707	$ 399
Commercial Portfolio Segment \| Commercial & industrial and other business loans \| Other Payment Delay
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount		$ 0		$ 0
Residential Portfolio Segment \| Consumer mortgage
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			$ 471
Total Class of Financing Receivable (in percent)	0.00%	0.00%	0.01%	0.01%
Residential Portfolio Segment \| Consumer mortgage \| Financial Asset, Not Past Due
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			$ 51
Residential Portfolio Segment \| Consumer mortgage \| Past Due 30 - 89 Days
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			0
Residential Portfolio Segment \| Consumer mortgage \| 90+ Days Past Due and Still Accruing
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			0
Residential Portfolio Segment \| Consumer mortgage \| Non-Accrual
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			420
Residential Portfolio Segment \| Consumer mortgage \| Term Extension
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount	$ 52	$ 0	$ 342	$ 232
Residential Portfolio Segment \| Consumer mortgage \| Other Payment Delay
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount		$ 0		$ 0
Residential Portfolio Segment \| Home equity
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Total Class of Financing Receivable (in percent)			0.00%	0.00%
Residential Portfolio Segment \| Home equity \| Term Extension
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount			$ 0	$ 24
Residential Portfolio Segment \| Home equity \| Other Payment Delay
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loan modifications amount				$ 0