Certain Balance Sheet Components Property, Plant, and Equipment, Net (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Machinery and equipment	$ 290,395	$ 289,015
Computers and software	105,791	104,310
Buildings, furniture, and improvements	127,297	127,531
Land	18,069	19,882
Construction in progress, including purchased equipment	26,956	32,639
Total cost	568,508	573,377
Accumulated depreciation	(387,641)	(383,121)
Property, plant, and equipment, net	$ 180,867	$ 190,256