Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 30, 2014	Aug. 31, 2013
Income Tax Disclosure [Abstract]
Beginning balance	$ 30,643	$ 27,715
Additions based on tax positions related to the current year	7,857	7,015
Additions for tax positions of prior years	2,114	2,758
Reductions for tax positions of prior years	(1,355)	(470)
Reductions due to settlements	(2,074)	(3,019)
Reductions due to statute of limitations	(4,057)	(3,356)
Ending balance	$ 33,128	$ 30,643