Restructuring (Provision of Charges and Liability) (Details) - Employee Severance - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 28, 2015	Mar. 29, 2015
Restructuring Reserve
Balance as of March 29, 2015	$ 10,512
Provision	865
Payments and other adjustments	(7,667)
Balance as of June 28, 2015	3,710	$ 10,512
High-Speed Converter Business
Restructuring Reserve
Balance as of March 29, 2015	10,217
Provision	0	18,300
Payments and other adjustments	(6,963)
Balance as of June 28, 2015	3,254	10,217
Other Restructuring Plan
Restructuring Reserve
Balance as of March 29, 2015	295
Provision	865
Payments and other adjustments	(704)
Balance as of June 28, 2015	$ 456	$ 295