OTHER COMMITMENTS, CONTINGENCIES, AND OFF-BALANCE SHEET ACTIVITIES (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Loss Contingencies [Line Items]
Total	$ 919,905	$ 725,655
Commitments to originate new loans
Loss Contingencies [Line Items]
Total	51,371	115,563
Unused funds on commercial and other lines of credit
Loss Contingencies [Line Items]
Total	265,587	98,993
Unadvanced funds on home equity lines of credit
Loss Contingencies [Line Items]
Total	122,295	117,351
Unadvanced funds on construction and real estate loans
Loss Contingencies [Line Items]
Total	247,382	168,883
Standby letters of credit
Loss Contingencies [Line Items]
Total	4,370	3,061
Commercial letters of credit
Loss Contingencies [Line Items]
Total	$ 228,900	$ 221,804