Intangible Assets and Goodwill - Weighted-Average Useful Life, Gross Carrying Amount and Accumulated Amortization for Definite-Lived Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 28, 2015	Feb. 28, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization expense, next twelve months	$ 1,514
Finite-Lived Intangible Assets, Gross	9,589	810
Accumulated Amortization	1,411	548
Net Carrying Amount	8,178	262
Amortization expense, year two	1,514
Amortization expense, year three	1,255
Amortization expense, year four	1,076
Amortization expense, year five	1,076
Trademarks
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	1,240	810
Accumulated Amortization	585	548
Net Carrying Amount	655	262
Weighted Average Remaining Useful Life (in years)	7 years
Patents
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	5,180
Accumulated Amortization	401
Net Carrying Amount	4,779
Weighted Average Remaining Useful Life (in years)	6 years 6 months
Contract-Based Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	2,154
Accumulated Amortization	220
Net Carrying Amount	1,934
Weighted Average Remaining Useful Life (in years)	6 years 7 months
Customer-Related Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	1,015
Accumulated Amortization	205
Net Carrying Amount	$ 810
Weighted Average Remaining Useful Life (in years)	2 years 4 months 15 days