Goodwill and Intangibles - Schedule of Changes in Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Feb. 15, 2014
Goodwill [Line Items]
Net balance as of August 31, 2013	$ 367,829
Goodwill adjustments
Net balance as of February 15, 2014	367,829
Auto Parts Stores [Member]
Goodwill [Line Items]
Net balance as of August 31, 2013	302,645
Goodwill adjustments
Net balance as of February 15, 2014	302,645
Other [Member]
Goodwill [Line Items]
Net balance as of August 31, 2013	65,184
Goodwill adjustments
Net balance as of February 15, 2014	$ 65,184