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RETIREMENT BENEFIT PLANS (Scheduled of Funded Status) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Reconciliation Of Funded Status      
Fair value of plan assets $ 39,914 $ 37,825 $ 30,770
Benefit obligations 65,184 72,869 $ 66,972
Unfunded benefit obligations $ 25,270 $ 35,044