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Inventories (Schedule Of Components Of Inventories) (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Inventory, Net [Abstract]    
Finished goods $ 30,025 $ 25,199
Work-in-process 17,201 11,955
Raw materials 49,212 32,958
Stores, supplies and other 17,665 18,457
Inventories $ 114,103 $ 88,569