Identifiable Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	May 31, 2019	Feb. 28, 2019
Acquired Finite-Lived Intangible Assets [Line Items]
Carrying amount for trademarks with an indefinite estimated useful life	$ 11.2	$ 11.4
Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Total identified intangible assets, useful life (in years)	2 years
Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Total identified intangible assets, useful life (in years)	10 years