COMMITMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES - Commitments To Make Loans And Open Ended Revolving Lines Of Credit (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Commitments Off-Balance Sheet Risks and Contingencies [Line Items]
Fixed Rate	$ 90,100	$ 65,319
Variable Rate	2,252,895	1,994,755
Total commercial loans
Commitments Off-Balance Sheet Risks and Contingencies [Line Items]
Fixed Rate	79,792	52,568
Variable Rate	1,850,719	1,646,539
Standby letters of credit
Commitments Off-Balance Sheet Risks and Contingencies [Line Items]
Fixed Rate	0	0
Variable Rate	55,336	53,796
Real estate mortgage loans
Commitments Off-Balance Sheet Risks and Contingencies [Line Items]
Fixed Rate	7,906	11,984
Variable Rate	14,216	3,921
Real estate construction mortgage loans
Commitments Off-Balance Sheet Risks and Contingencies [Line Items]
Fixed Rate	2,402	767
Variable Rate	3,213	3,051
Home equity mortgage open-ended revolving lines
Commitments Off-Balance Sheet Risks and Contingencies [Line Items]
Fixed Rate	0	0
Variable Rate	306,124	267,530
Total consumer loans
Commitments Off-Balance Sheet Risks and Contingencies [Line Items]
Fixed Rate	0	0
Variable Rate	$ 23,287	$ 19,918