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OTHER - Long term liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Retirement benefit obligations $ 5,178 $ 6,918
Wallace facility remediation 5,140 0
Other non-income tax liabilities 3,037 2,927
Unearned revenue 890 1,159
Contingent consideration Non current 650 0
Derivative financial instruments 0 972
Other long-term obligations 100 140
OTHER LONG-TERM LIABILITIES $ 14,995 $ 12,116