Acquisition - Additional Information (Detail) € in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Feb. 29, 2016 USD ($)	Nov. 30, 2015 USD ($)	Feb. 28, 2015 EUR (€)	Feb. 29, 2016 EUR (€)	Feb. 29, 2016 USD ($)	May. 31, 2015 EUR (€)	May. 31, 2015 USD ($)	Feb. 28, 2015 USD ($)
Business Acquisition [Line Items]
Business acquisition valuation of assets allocated to goodwill		$ 1,759.3			$ 1,764.0			$ 1,651.2
Contingent consideration related to acquisition		27.1			28.4		$ 27.7
Brand Aromatics [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred	$ 62.4
Business Acquisition, Pro Forma Revenue	30.0
Business acquisition valuation of assets allocated to goodwill		34.3
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	7.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Tangible Assets, Total		5.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets		4.2
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles		$ 18.7
Finite-Lived Intangible Asset, Useful Life		11 years 11 months
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					46.1
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	14.6
Contingent consideration related to acquisition						€ 25	$ 27.7
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Tangible Assets, Total					6.3
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets					12.6
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles					11.7
Finite-Lived Intangible Asset, Useful Life		9 years 8 months
Stubbs [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, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	$ 5.3
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, Indefinite-Lived Intangible Assets					13.3
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles					$ 12.5
Finite-Lived Intangible Asset, Useful Life		14 years 4 months