Goodwill and Intangible Assets, Net (Intangible Assets) (Details) - USD ($) $ in Thousands	Jul. 03, 2016	Apr. 03, 2016
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Assets	$ 474,862	$ 474,712
Impairment	(336)
Accumulated Amortization	(353,047)	(346,951)
Net Assets	121,479	127,761
Developed technology
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Assets	279,514	279,514
Impairment	(315)
Accumulated Amortization	(208,617)	(205,307)
Net Assets	70,582	74,207
Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Assets	5,211	5,211
Impairment	0
Accumulated Amortization	(4,883)	(4,576)
Net Assets	328	635
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Assets	172,787	172,787
Impairment	(21)
Accumulated Amortization	(132,351)	(130,745)
Net Assets	40,415	42,042
Intellectual property licenses
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Assets	11,550	11,400
Impairment	0
Accumulated Amortization	(2,327)	(1,819)
Net Assets	9,223	9,581
Order backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Assets	5,800	5,800
Impairment	0
Accumulated Amortization	(4,869)	(4,504)
Net Assets	$ 931	$ 1,296