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PENSION AND OTHER BENEFIT PLANS - Deferred Compensation Plans for Directors (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Deferred Compensation Arrangements      
Liability accrued for compensation plan $ 7,756 $ 8,362  
Deferred Compensation Plans for Directors | Directors      
Deferred Compensation Arrangements      
Deferred compensation arrangement with individual, shares credited (in shares) 136,256 137,945  
Liability accrued for compensation plan $ 5,500 $ 5,100  
Expense recognized under plan $ 200 $ 200 $ 200