Intangibles, net and Goodwill (Schedule of Gross Carrying Amount and Amortization of Intangible Assets) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 27, 2021	Mar. 28, 2020
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 228,824	$ 226,699
Accumulated Amortization	(206,793)	(192,269)
Core technology
Finite-Lived Intangible Assets [Line Items]
Gross Amount	1,390	1,390
Accumulated Amortization	(1,390)	(1,390)
License agreement
Finite-Lived Intangible Assets [Line Items]
Gross Amount	440	440
Accumulated Amortization	$ (440)	(440)
Existing technology
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Amortization Period	7 years
Gross Amount	$ 111,005	111,005
Accumulated Amortization	$ (105,870)	(100,145)
In-process research & development (“IPR&D”)
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Amortization Period	7 years 6 months
Gross Amount	$ 70,936	70,936
Accumulated Amortization	$ (62,885)	(58,284)
Trademarks and tradename
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Amortization Period	10 years
Gross Amount	$ 3,037	3,037
Accumulated Amortization	$ (2,717)	(2,589)
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Amortization Period	10 years
Gross Amount	$ 15,381	15,381
Accumulated Amortization	(10,346)	(8,808)
Backlog
Finite-Lived Intangible Assets [Line Items]
Gross Amount	220	220
Accumulated Amortization	(220)	(220)
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Gross Amount	470	470
Accumulated Amortization	$ (470)	(470)
Technology licenses
Finite-Lived Intangible Assets [Line Items]
Weighted-Average Amortization Period	3 years
Gross Amount	$ 25,945	23,820
Accumulated Amortization	$ (22,455)	$ (19,923)