Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 26, 2022	Mar. 27, 2021	Mar. 28, 2020
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	$ 1,389,005	$ 1,229,779	$ 1,140,240
Current period foreign exchange translation	(507)	1,862	68
Current period marketable securities activity	(5,587)	5,673	(2,803)
Cumulative effect of adoption of ASU 2018-02	0	0	(257)
Balance	1,599,817	1,389,005	1,229,779
Foreign Currency
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	294	(1,568)
Current period foreign exchange translation	(507)	1,862
Current period marketable securities activity	0	0
Tax effect	0	0
Balance	(213)	294	(1,568)
Unrealized Gains (Losses) on Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	2,838	(1,644)
Current period foreign exchange translation	0	0
Current period marketable securities activity	(5,587)	5,673
Tax effect	1,174	(1,191)
Balance	(1,575)	2,838	(1,644)
Accumulated Other Comprehensive Income / (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance	2,875	(3,469)	(1,066)
Current period foreign exchange translation	(507)	1,862
Current period marketable securities activity	(5,587)	5,673
Tax effect	1,174	(1,191)
Cumulative effect of adoption of ASU 2018-02	(257)	(257)	(257)
Balance	$ (2,045)	$ 2,875	$ (3,469)