Goodwill and Intangible Assets - Carrying Amount and Accumulated Amortization of Intangible Assets (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Aug. 31, 2019	Feb. 28, 2019
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Life (in years)	9 years 6 months	10 years
Gross Carrying Amount	$ 101,030	$ 97,759
Accumulated Amortization	40,317	36,487
Amortized intangible assets, Net	$ 60,713	$ 61,272
Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Life (in years)	12 years 7 months 6 days	13 years 9 months 18 days
Gross Carrying Amount	$ 26,281	$ 24,385
Accumulated Amortization	4,795	3,906
Amortized intangible assets, Net	$ 21,486	$ 20,479
Customer Lists [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Life (in years)	7 years 9 months 18 days	8 years 2 months 12 days
Gross Carrying Amount	$ 73,199	$ 71,869
Accumulated Amortization	34,336	31,498
Amortized intangible assets, Net	$ 38,863	$ 40,371
Non-Compete [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Life (in years)	2 years 2 months 12 days	2 years 6 months
Gross Carrying Amount	$ 767	$ 722
Accumulated Amortization	403	300
Amortized intangible assets, Net	364	422
Patent [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	783	783
Accumulated Amortization	$ 783	$ 783