Balance Sheet Components (Schedule Of Intangibles, Net) (Details) - USD ($) $ in Thousands	Sep. 27, 2015	Dec. 31, 2014
Intangible Assets [Line Items]
Gross	$ 128,144	$ 128,144
Accumulated Amortization	(74,953)	(61,914)
Finite-Lived Intangible Assets, Net	53,191	66,230
Technology [Member]
Intangible Assets [Line Items]
Gross	61,099	61,099
Accumulated Amortization	(46,275)	(39,341)
Finite-Lived Intangible Assets, Net	14,824	21,758
Customer Contracts And Relationships [Member]
Intangible Assets [Line Items]
Gross	56,500	56,500
Accumulated Amortization	(21,519)	(16,205)
Finite-Lived Intangible Assets, Net	34,981	40,295
Other [Member]
Intangible Assets [Line Items]
Gross	10,545	10,545
Accumulated Amortization	(7,159)	(6,368)
Finite-Lived Intangible Assets, Net	$ 3,386	$ 4,177