Balance Sheet Details (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Schedule of inventories
Raw materials and purchased parts	$ 22,803	$ 23,042
Work-in-process	3,398	2,522
Finished goods	18,097	23,311
Reserves	(3,457)	(4,019)
Total inventories, net	$ 40,841	$ 44,856