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Inventories (Summary Of Inventories) (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Inventories [Abstract]    
Raw materials $ 88,860 $ 78,244
Work-in-process 10,433 8,566
Finished goods 89,298 83,180
Inventories, net $ 188,591 $ 169,990