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Inventories (Schedule of Inventories) (Details) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Inventories [Abstract]    
Raw materials $ 40,498 $ 36,021
Work-in-progress 8,581 7,162
Finished goods 20,288 17,826
Total inventories, net $ 69,367 $ 61,009