Certain Balance Sheet Components Property, Plant, and Equipment, Net (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Machinery and equipment	$ 311,578	$ 309,525
Computers and software	101,002	99,654
Buildings, furniture, and improvements	146,214	145,926
Land	24,039	24,005
Construction in progress, including purchased equipment	13,393	14,257
Total cost	596,226	593,367
Accumulated depreciation	(358,900)	(346,547)
Property, plant, and equipment, net	$ 237,326	$ 246,820