Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Aug. 29, 2020		Aug. 31, 2019		Aug. 25, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 135,770		$ 179,134		$ 163,895
Other comprehensive (loss) income:
Foreign currency translation adjustments	2,631		(3,524)		(5,184)
Pension benefit liabilities, net of income taxes	(787)	[1]	(5,104)	[1]	1,342
Change in fair value of derivatives, net of income taxes	25		252		247
Derivative financial instruments reclassified to earnings	(151)		(153)		(46)
Other comprehensive (loss) income	1,718		(8,529)		(3,641)
Comprehensive income	$ 137,488		$ 170,605		$ 160,254

[1] These amounts are shown net of the effect of income taxes.