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Inventories (Schedule Of Inventories) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Inventory Disclosure [Abstract]    
Raw materials and supplies $ 168,232 $ 184,420
Work in process 222,281 245,160
Finished goods 85,785 78,446
Inventories, gross 476,298 508,026
Reserves (25,877) (17,612)
Inventories, net $ 450,421 $ 490,414