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RETIREMENT PLANS (Comparison of Obligations of Plan Assets) (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Retirement Benefits [Abstract]      
Projected benefit obligation $ 31,494 $ 30,226 $ 39,123
Accumulated benefit obligation 30,411 29,150  
Fair value of plan assets at measurement date $ 46,427 $ 43,119 $ 50,218