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Inventories (Schedule Of Inventories) (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Inventories:    
Raw materials and supplies $ 217,587 $ 216,761
Work in process 206,732 192,821
Finished goods 44,290 38,159
Total $ 468,609 $ 447,741