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Inventories (Schedule Of Inventory Costs) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Inventories [Abstract]    
Raw materials $ 282,324 $ 293,618
Work in process 87,028 71,574
Finished goods 34,637 26,388
Inventories, net $ 403,989 $ 391,580