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. 29, 2016	Feb. 28, 2015
Finite-Lived Intangible Assets [Line Items]
Other intangibles	$ 6,224	$ 9,589
Accumulated Amortization	2,925	1,411
Net Carrying Amount	3,299	8,178
Trademarks
Finite-Lived Intangible Assets [Line Items]
Other intangibles	1,240	1,240
Accumulated Amortization	727	585
Net Carrying Amount	$ 513	655
Weighted Average Remaining Useful Life (in years)	6 years 256 days
Patents
Finite-Lived Intangible Assets [Line Items]
Other intangibles	$ 1,815	5,180
Accumulated Amortization	1,141	401
Net Carrying Amount	$ 674	4,779
Weighted Average Remaining Useful Life (in years)	5 years 183 days
Contract-Based Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Other intangibles	$ 2,154	2,154
Accumulated Amortization	514	220
Net Carrying Amount	$ 1,640	1,934
Weighted Average Remaining Useful Life (in years)	5 years 219 days
Customer-Related Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Other intangibles	$ 1,015	1,015
Accumulated Amortization	543	205
Net Carrying Amount	$ 472	$ 810
Weighted Average Remaining Useful Life (in years)	1 year 146 days