COMMITMENTS, CONTINGENT LIABILITIES AND RESTRICTIONS (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
COMMITMENTS, CONTINGENT LIABILITIES AND RESTRICTIONS
Contract amount of commitments and contingencies	$ 1,612,916	$ 1,486,563
Minimum
COMMITMENTS, CONTINGENT LIABILITIES AND RESTRICTIONS
Range of reasonably possible losses for such matters in the aggregate, beyond the existing recorded liability	0
Maximum
COMMITMENTS, CONTINGENT LIABILITIES AND RESTRICTIONS
Range of reasonably possible losses for such matters in the aggregate, beyond the existing recorded liability	1,000
Commitments to extend credit
COMMITMENTS, CONTINGENT LIABILITIES AND RESTRICTIONS
Contract amount of commitments and contingencies	1,561,281	1,443,879
Standby letters of credit
COMMITMENTS, CONTINGENT LIABILITIES AND RESTRICTIONS
Contract amount of commitments and contingencies	$ 51,635	$ 42,684