Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended
	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2012
Goodwill and Intangible Assets Disclosure [Line Items]
Weighted-average amortization period for aggregate net intangible assets	10 years 7 months 6 days
Goodwill acquired	$ 34,696,000	$ 338,664,000
Amortization of intangibles	23,857,000	10,954,000	12,899,000
Contractual agreements and customer relationships
Goodwill and Intangible Assets Disclosure [Line Items]
Weighted-average amortization period for aggregate net intangible assets	12 years 4 months 24 days
Contractual agreements and customer relationships | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Life of intangible assets	15 years
Intellectual property
Goodwill and Intangible Assets Disclosure [Line Items]
Weighted-average amortization period for aggregate net intangible assets	5 years 1 month 6 days
Intellectual property | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Life of intangible assets	8 years
Nypro Inc.
Goodwill and Intangible Assets Disclosure [Line Items]
Acquired intangible assets	204,700,000
Goodwill acquired	370,567,000
Nypro Inc. | Indefinite lived trade name
Goodwill and Intangible Assets Disclosure [Line Items]
Acquired intangible assets	72,500,000
Nypro Inc. | Intellectual property
Goodwill and Intangible Assets Disclosure [Line Items]
Acquired intangible assets	51,200,000
Nypro Inc. | Intellectual property | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Life of intangible assets	8 years
Nypro Inc. | Customer Relationships
Goodwill and Intangible Assets Disclosure [Line Items]
Acquired intangible assets	$ 81,000,000
Nypro Inc. | Customer Relationships | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Life of intangible assets	15 years