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ALLOWANCE FOR CREDIT LOSSES - Additional Information (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Jan. 01, 2022
Dec. 31, 2019
Financing Receivable Recorded Investment Past Due [Line Items]          
Accrued interest receivable $ 25,157,000 $ 21,589,000      
Individually evaluated include Nonaccrual loans 15,800,000 15,600,000      
Individually evaluated loans balance 14,055,000 19,887,000      
Recording charge-off 1,200,000        
Individually evaluated non-accrual loans performing troubled debt restructured 150,000 2,500,000      
Allowance allocated to troubled debt restructured loans 1,200,000 0      
Allowance for credit losses 60,829,000 [1] 61,697,000 [1] $ 67,309,000   $ 43,676,000
Reduction to allowance for credit losses (752,000)        
Provision for credit losses [2] $ 6,353,000 $ 6,475,000 $ 32,400,000    
Allowance for credit losses, percentage of loans 1.15% 1.28%      
Off-balance sheet commitments, provision $ 450,000        
Loans [Member]          
Financing Receivable Recorded Investment Past Due [Line Items]          
Accrued interest receivable $ 22,800,000 $ 19,100,000      
ASU 2016-13 [Member]          
Financing Receivable Recorded Investment Past Due [Line Items]          
Reduction to allowance for credit losses       $ 5,500,000  
[1] Commencing on January 1, 2022, the allowance calculation is based on the current expected credit loss ("CECL") methodology. Prior to January 1, 2022, the calculation was based on the incurred loss methodology.
[2] Commencing on January 1, 2022, the allowance calculation is based on the CECL methodology. Prior to January 1, 2022 the calculation was based on the incurred loss methodology.