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SUBORDINATED DEBENTURES (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
May 06, 2022
Sep. 30, 2015
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Jun. 30, 2022
Jun. 15, 2022
Dec. 31, 2021
Debt Instrument [Line Items]                  
Subordinated notes payable, net     $ 200,300   $ 200,300       $ 197,100
Interest expense related to the subordinated debt     $ 2,600 $ 2,200 $ 8,100 $ 6,300      
Fixed to Floating Rate Subordinated Notes Due 2032 (the Notes)                  
Debt Instrument [Line Items]                  
Aggregate principal amount issued $ 160,000                
Date after debt becomes callable May 15, 2027                
Fixed to Floating Rate Subordinated Notes Due 2032 (the Notes) | Prior to May 15, 2027                  
Debt Instrument [Line Items]                  
Fixed annual interest rate 5.00%                
Fixed to Floating Rate Subordinated Notes Due 2032 (the Notes) | On or after August 15, 2027 | SOFR                  
Debt Instrument [Line Items]                  
Basis points added to benchmark rate 218.00%                
Fixed to Floating Rate Subordinated Notes Due 2027 (4.50%)                  
Debt Instrument [Line Items]                  
Fixed annual interest rate 4.50%                
Net proceeds of the offering for the repayment               $ 115,000  
Write-off of debt issuance costs $ 740                
Fixed to Floating Rate Subordinated Notes Due 2025 (5.25%)                  
Debt Instrument [Line Items]                  
Fixed annual interest rate 5.25%                
Net proceeds of the offering for the repayment             $ 40,000    
Callable Notes After Ten Years | Subordinated Debentures                  
Debt Instrument [Line Items]                  
Aggregate principal amount issued   $ 40,000              
Fixed annual interest rate   0.0575%              
Basis points added to benchmark rate   3.45%              
Debt Instrument, Term   10 years              
Debt instrument variable rate description   three-month LIBOR