Goodwill and Intangible Assets, Net (Intangible Assets) (Details) - USD ($) $ in Thousands	Jan. 03, 2016	Mar. 29, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Assets	$ 474,712	$ 346,626
Accumulated Amortization	(337,223)	(341,091)
Net Assets	137,489	5,535
Existing technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Assets	279,514	211,170
Accumulated Amortization	(201,992)	(206,491)
Net Assets	77,522	4,679
Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Assets	5,211	4,411
Accumulated Amortization	(4,274)	(3,850)
Net Assets	937	561
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Assets	172,787	131,045
Accumulated Amortization	(129,146)	(130,750)
Net Assets	43,641	$ 295
Intellectual property licenses
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Assets	11,400
Accumulated Amortization	(1,324)
Net Assets	10,076
Backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Assets	5,800
Accumulated Amortization	(487)
Net Assets	$ 5,313