Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Aug. 25, 2018	Aug. 26, 2017		Aug. 27, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 163,895	$ 70,196		$ 125,026
Other comprehensive (loss) income:
Foreign currency translation adjustments	(5,184)	4,882		(391)
Pension benefit liabilities, net of income taxes	1,342	2,774	[1]	(3,532)	[1]
Change in fair value of derivatives, net of income taxes	247	(45)		(398)
Derivative financial instruments reclassified to earnings	(46)	(180)		(215)
Other comprehensive (loss) income	(3,641)	7,431		(4,536)
Comprehensive income	$ 160,254	$ 77,627		$ 120,490

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