Segment Information (Income) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015
Segment Reporting Information [Line Items]
Income from continuing operations, before income taxes	$ 24,770	$ 43,034	$ 42,159	$ 82,189
Amortization of intangible assets	(5,800)	(1,600)	(11,849)	(2,451)
Stock-based compensation expense	(9,181)	(8,581)	(19,696)	(16,416)
Interest and other income (expense), net	1,620	1,016	3,272	2,834
Unallocated expenses
Segment Reporting Information [Line Items]
Amortization of intangible assets	(5,246)	(751)	(11,021)	(1,583)
Inventory fair market value adjustment	(520)	0	(2,915)	0
Assets impairment and recoveries	0	28	(870)	(119)
Stock-based compensation expense	(9,181)	(8,581)	(19,696)	(16,447)
Severance and facility closure costs	(5,002)	(2,048)	(16,939)	(2,969)
Acquisition-related costs and other	(72)	0	(72)	0
Deferred compensation plan income, net	(18)	0	(29)	0
Interest and other income (expense), net	(3,014)	1,568	(5,902)	3,270
Communications | Operating Segments
Segment Reporting Information [Line Items]
Income from continuing operations, before income taxes	20,685	27,401	49,173	50,351
Computing, Consumer and Industrial | Operating Segments
Segment Reporting Information [Line Items]
Income from continuing operations, before income taxes	$ 27,138	$ 25,417	$ 50,430	$ 49,686