Goodwill and Intangibles - Schedule of Carrying Amounts of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Feb. 15, 2014
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	$ 60,246
Finite Lived, Accumulated Amortization	(5,337)
Finite Lived, Net Carrying Amount	54,909
Total intangible assets other than goodwill, Net Carrying Amount	79,509
Technology [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	10,570
Finite Lived, Accumulated Amortization	(2,327)
Finite Lived, Net Carrying Amount	8,243
Technology [Member] | Minimum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	3 years
Technology [Member] | Maximum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	5 years
Noncompete Agreements [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	1,300
Finite Lived, Accumulated Amortization	(303)
Finite Lived, Net Carrying Amount	997
Noncompete Agreements [Member] | Maximum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	5 years
Customer Relationships [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Finite Lived, Gross Carrying Amount	48,376
Finite Lived, Accumulated Amortization	(2,707)
Finite Lived, Net Carrying Amount	45,669
Customer Relationships [Member] | Minimum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	3 years
Customer Relationships [Member] | Maximum [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	10 years
Trade Name [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Non-amortizing intangible asset - Trade name, Net Carrying Amount	$ 24,600