Goodwill and Other Intangible Assets (Additional Information) (Details 2) - USD ($)	12 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2013
Goodwill and Intangible Assets Disclosure [Line Items]
Goodwill acquired	$ 82,848,000	$ 34,696,000
Amortization of intangibles	24,449,000	$ 23,857,000	$ 10,954,000
Impairment of Goodwill	0
Impairment for indefinite-lived intangible assets	$ 0
Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Weighted-average amortization period for aggregate net intangible assets	9 years 8 months 12 days
Intellectual property [Member] | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Life of intangible assets	8 years
Weighted-average amortization period for aggregate net intangible assets	5 years 1 month 6 days
Customer Relationships | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Life of intangible assets	15 years
Weighted-average amortization period for aggregate net intangible assets	12 years 3 months 18 days
Finite-lived trade name [Member] | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Life of intangible assets	10 years
Weighted-average amortization period for aggregate net intangible assets	4 years 6 months