Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Mar. 26, 2022	Mar. 27, 2021	Mar. 28, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 326,355	$ 217,344	$ 159,498
Other comprehensive income (loss), before tax
Foreign currency translation gain (loss)	(507)	1,862	68
Unrealized gain (loss) on marketable securities	(5,587)	5,673	(2,803)
Cumulative effect of adoption of ASU 2018-02	0	0	(257)
Benefit (provision) for income taxes	1,174	(1,191)	589
Comprehensive income	$ 321,435	$ 223,688	$ 157,095