Certain Balance Sheet Components Property, Plant, and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Line Items]
Machinery and equipment	$ 279,746	$ 289,015
Computers and Software, Gross	98,125	104,310
Buildings, furniture, and improvements	122,680	127,531
Land	17,179	19,882
Construction in progress, including purchased equipment	29,358	32,639
Total cost	547,088	573,377
Accumulated depreciation	(370,630)	(383,121)
Property, plant, and equipment, net	$ 176,458	$ 190,256