Inventory, net (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Inventory Disclosure [Abstract]
Raw materials	$ 12,971	$ 11,085
Finished goods	23,401	21,159
Allowance for obsolescence	(10,096)	(9,949)
Total inventory, net	$ 26,276	$ 22,295