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SECURITIES - Narrative (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
USD ($)
security
Sep. 30, 2022
USD ($)
Sep. 30, 2023
USD ($)
security
Sep. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
SECURITIES          
Number of securities in an unrealized loss position for a period of twelve months or more | security 669   669    
Number of securities in an unrealized loss position for a period of less than twelve months | security 225   225    
Allowance for credit losses $ 0   $ 0    
Debt securities, available-for-sale, accrued interest 6,200   6,200    
Gross realized losses 813 $ 0 1,820 $ 0  
Proceeds from sales of securities available-for-sale 39,436 0 185,280 0  
Impairments of downward adjustments     100    
Adjustment to carrying value of equity securities with no readily determinable fair value     200    
Upward adjustment on equity securities with no readily determinable fair value 0   0   $ 0
Proceeds from sale of equity securities 0 $ 0 $ 0 $ 0  
Municipal          
SECURITIES          
Percentage of securities with general obligation issue     79.00%    
Allowance for credit losses 0   $ 0    
Corporate          
SECURITIES          
Allowance for credit losses 0   0    
Provision for credit losses (800)        
Assets Pledged          
SECURITIES          
Carrying value of securities pledged to secure public and trust deposits $ 449,200   $ 449,200   $ 332,600