Intangible Assets and Goodwill - Weighted-Average Useful Life, Gross Carrying Amount and Accumulated Amortization for Definite-Lived Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2018	Feb. 28, 2017
Finite-Lived Intangible Assets [Line Items]
Other intangibles	$ 2,154	$ 3,165
Accumulated Amortization	1,101	1,642
Net Carrying Amount	1,053	1,523
Trademarks
Finite-Lived Intangible Assets [Line Items]
Other intangibles		696
Accumulated Amortization		545
Net Carrying Amount		151
Contract-Based Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Other intangibles	2,154	2,154
Accumulated Amortization	1,101	808
Net Carrying Amount	$ 1,053	1,346
Weighted Average Remaining Useful Life (in years)	3 years 219 days
Customer-Related Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Other intangibles		315
Accumulated Amortization		289
Net Carrying Amount		$ 26