Acquisition - Additional Information (Detail) € in Millions, $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
	Aug. 31, 2015 USD ($)	Aug. 31, 2015 USD ($)	Feb. 28, 2015 EUR (€)	Aug. 31, 2015 EUR (€)	Aug. 31, 2015 USD ($)	May. 31, 2015 EUR (€)	May. 31, 2015 USD ($)	Nov. 30, 2014 USD ($)	Aug. 31, 2014 USD ($)
Business Acquisition [Line Items]
Business acquisition valuation of assets allocated to goodwill					$ 1,802.4			$ 1,722.2	$ 1,769.1
Business Combination, Acquisition Related Costs	$ 0.8	$ 2.8
Contingent consideration related to acquisition					28.6		$ 27.7
Brand Aromatics [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred		62.5
Business Acquisition, Pro Forma Revenue		30.0
Business acquisition valuation of assets allocated to goodwill					37.9
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	7.0	11.8
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Tangible Assets, Total					5.1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill					19.5
Stubbs [Member] [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred		99.4
Business Acquisition, Pro Forma Revenue		30.0
Business acquisition valuation of assets allocated to goodwill					80.6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Tangible Assets, Total					5.4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities					12.4
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill					25.8
D&A [Member]
Business Acquisition [Line Items]
Cash Acquired from Acquisition	2.8
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | €				€ 35
Business Acquisition, Pro Forma Revenue | €			€ 50
Payments to Acquire Businesses, Net of Cash Acquired	$ 49.0
Business acquisition valuation of assets allocated to goodwill					45.2
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual		$ 15.3
Contingent consideration related to acquisition						€ 25	$ 27.7
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Tangible Assets, Total					7.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill					$ 24.3