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Select Balance Sheet Information - Schedule of Inventories (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Raw Material, Fuel and Supplies $ 72,657 $ 70,374
Work in Process 30,267 31,766
Finished Goods 39,083 43,812
Total Inventories $ 142,007 $ 145,952