Inventories, Net and Significant Supplier(s) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Raw materials	$ 28,051	$ 29,290
Components	13,694	12,228
Work in process	6,350	5,671
Finished goods	72,889	78,222
Reserve for excess and obsolete inventory	(3,292)	(3,045)	$ (2,537)	$ (2,539)
Inventories, net	$ 117,692	$ 122,366