Inventories (Schedule of Inventory, Current) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Inventory Disclosure [Abstract]
Finished goods	$ 119,834	$ 116,667
Work in process	10,769	9,431
Raw materials	10,805	9,662
Total inventory	$ 141,408	$ 135,760