Goodwill and Intangibles - Schedule of Changes in Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	May 09, 2015
Goodwill [Line Items]
Goodwill, Beginning balance	$ 367,829
Goodwill adjustments added through acquisition	16,784
Goodwill, Ending balance	384,613
Auto Parts Locations [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	302,645
Goodwill adjustments added through acquisition	16,784
Goodwill, Ending balance	319,429
Other [Member]
Goodwill [Line Items]
Goodwill, Beginning balance	65,184
Goodwill adjustments added through acquisition	0
Goodwill, Ending balance	$ 65,184