Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended
	Aug. 31, 2013	Aug. 31, 2012	Aug. 31, 2011
Goodwill and Intangible Assets Disclosure [Line Items]
Weighted-average amortization period for aggregate net intangible assets	10 years 10 months 24 days
Goodwill acquired	$ 341,593,000	$ 60,942,000
Amortization of intangible	16,154,000	16,825,000	22,051,000
Contractual agreements and customer relationships
Goodwill and Intangible Assets Disclosure [Line Items]
Weighted-average amortization period for aggregate net intangible assets	12 years 1 month 6 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	7 years 3 months 18 days
Intellectual property | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Life of intangible assets	9 years
Finite lived trade name
Goodwill and Intangible Assets Disclosure [Line Items]
Weighted-average amortization period for aggregate net intangible assets	2 years
Finite lived trade name | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Life of intangible assets	2 years
Nypro Inc.
Goodwill and Intangible Assets Disclosure [Line Items]
Acquired intangible assets	196,800,000
Goodwill acquired	335,871,000
Nypro Inc. | Indefinite lived trade name
Goodwill and Intangible Assets Disclosure [Line Items]
Acquired intangible assets	71,600,000
Nypro Inc. | Intellectual property
Goodwill and Intangible Assets Disclosure [Line Items]
Acquired intangible assets	52,700,000
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	$ 72,500,000
Nypro Inc. | Customer Relationships | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Life of intangible assets	14 years