Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2018	Mar. 25, 2017	Mar. 26, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 161,995	$ 261,209	$ 123,630
Other comprehensive income (loss), before tax
Foreign currency translation gain (loss)	2,791	(826)	294
Unrealized gain (loss) on marketable securities	(2,380)	47	(24)
Actuarial gain (loss) on defined benefit pension plan	(14,729)	(79)	2,660
Reclassification of actuarial (gain) loss to net income	0	(89)	49
Benefit (provision) for income taxes	3,530	42	(537)
Comprehensive income	$ 151,207	$ 260,304	$ 126,072