Inventory, net (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Raw materials	$ 15,177	$ 12,150
Finished goods	21,853	17,971
Allowance for obsolescence	(10,287)	(10,724)
Total inventory, net	$ 26,743	$ 19,397