Acquisition - Additional Information (Detail) € in Millions, $ in Millions	3 Months Ended	6 Months Ended	12 Months Ended
	May. 31, 2015 USD ($)	May. 31, 2015 USD ($)	Feb. 28, 2015 EUR (€)	May. 31, 2015 EUR (€)	May. 31, 2015 USD ($)	Nov. 30, 2014 USD ($)	May. 31, 2014 USD ($)
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 100.0
Business Acquisition, Pro Forma Revenue		$ 30.0
Business acquisition valuation of assets allocated to goodwill					$ 1,719.8	$ 1,722.2	$ 1,798.6
Business Combination, Acquisition Related Costs	0.9	2.0
Business Combination, Contingent Consideration, Liability					26.0
Brand Aromatics [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred		62.5
Business acquisition valuation of assets allocated to goodwill					37.9
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual		$ 4.8
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
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					43.5
Business Combination, Contingent Consideration, Liability				€ 24	26.0
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