Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended		12 Months Ended
	Mar. 01, 2017	May 31, 2018	May 31, 2017	Feb. 28, 2018
Finite-Lived Intangible Assets [Line Items]
Remaining estimated useful life		10 years 7 months 6 days		10 years 9 months 18 days
Amortization of trade names, customer lists, and patent		$ 1,415	$ 1,525
Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Remaining estimated useful life		15 years 6 months		16 years
Minimum [Member] | Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Remaining estimated useful life	17 years
Maximum [Member] | Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Remaining estimated useful life	19 years