Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 25, 2021	Sep. 26, 2020	Sep. 25, 2021	Sep. 26, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 85,096	$ 59,486	$ 102,305	$ 77,695
Other comprehensive income (loss), before tax
Foreign currency translation gain (loss)	(165)	651	(217)	1,665
Unrealized gain (loss) on marketable securities	(1,983)	(733)	(3,106)	8,755
Benefit (provision) for income taxes	417	154	653	(1,838)
Comprehensive income	$ 83,365	$ 59,558	$ 99,635	$ 86,277