Goodwill and Intangibles - Schedule of Carrying Amounts of Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Aug. 31, 2013
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 58,700
Accumulated Amortization	(2,884)
Impairment	(4,100)
Net Carrying Amount	51,716
Technology [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	5 years
Gross Carrying Amount	9,700
Accumulated Amortization	(1,365)
Net Carrying Amount	8,335
Noncompete Agreement [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	5 years
Gross Carrying Amount	1,300
Accumulated Amortization	(183)
Net Carrying Amount	1,117
Customer Relationships [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	10 years
Gross Carrying Amount	19,000
Accumulated Amortization	(1,336)
Net Carrying Amount	17,664
Trade Name [Member]
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Estimated Useful Life	Indefinite
Gross Carrying Amount	28,700
Impairment	(4,100)
Net Carrying Amount	$ 24,600