Goodwill and Other Intangible Assets (Additional Information) (Details 2) - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2016	Aug. 31, 2015	Aug. 31, 2014
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill acquired	$ 135,107	$ 82,848
Amortization of intangibles	$ 37,121	$ 24,449	$ 23,857
Contractual agreements and customer relationships
Goodwill and Intangible Assets Disclosure [Line Items]
Weighted-average amortization period for aggregate net intangible assets	11 years 1 month 6 days
Intellectual property [Member]
Goodwill and Intangible Assets Disclosure [Line Items]
Weighted-average amortization period for aggregate net intangible assets	5 years
Intellectual property [Member] | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Life of intangible assets	8 years
Customer Relationships | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Life of intangible assets	15 years