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Inventories, Net (Summary Of Inventories) (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Inventories, Net [Abstract]    
Raw materials $ 93,345 $ 92,906
Work-in-process 7,805 9,125
Finished goods 85,005 91,577
Inventories, net $ 186,155 $ 193,608