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Inventories (Schedule of Inventory, Current) (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Inventory Disclosure [Abstract]    
Finished goods $ 133,396 $ 129,995
Work in process 8,788 9,561
Raw materials 12,420 11,202
Total inventory $ 154,604 $ 150,758