Certain Balance Sheet Components Property, Plant, and Equipment, Net (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Machinery and equipment	$ 289,411	$ 289,015
Computers and software	104,795	104,310
Buildings, furniture, and improvements	128,437	127,531
Land	20,009	19,882
Construction in progress, including purchased equipment	32,567	32,639
Total cost	575,219	573,377
Accumulated depreciation	(385,215)	(383,121)
Property, plant, and equipment, net	$ 190,004	$ 190,256