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Inventories (Schedule Of Inventories) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Inventory Disclosure [Abstract]    
Raw materials and supplies $ 150,340 $ 184,420
Work in process 191,340 245,160
Finished goods 97,063 78,446
Inventories, gross 438,743 508,026
Reserves (20,266) (17,612)
Inventories, net $ 418,477 $ 490,414