Goodwill and Intangible Assets - Carrying Amount and Accumulated Amortization of Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	May 31, 2020	Feb. 29, 2020
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Life (in years)	9 years	9 years 2 months 12 days
Gross Carrying Amount	$ 100,813	$ 100,813
Accumulated Amortization	46,228	44,256
Amortized intangible assets, Net	$ 54,585	$ 56,557
Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Life (in years)	12 years 3 months 18 days	12 years 7 months 6 days
Gross Carrying Amount	$ 26,161	$ 26,161
Accumulated Amortization	6,318	5,811
Amortized intangible assets, Net	$ 19,843	$ 20,350
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Life (in years)	7 years 2 months 12 days	7 years 4 months 24 days
Gross Carrying Amount	$ 73,102	$ 73,102
Accumulated Amortization	38,576	37,161
Amortized intangible assets, Net	$ 34,526	$ 35,941
Non-Compete [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Life (in years)	1 year 7 months 6 days	1 year 9 months 18 days
Gross Carrying Amount	$ 767	$ 767
Accumulated Amortization	551	501
Amortized intangible assets, Net	216	266
Patent [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	783	783
Accumulated Amortization	$ 783	$ 783