Intangible Assets and Goodwill Finite-lived Intangibles (Details) - USD ($) $ in Thousands	6 Months Ended
	Aug. 31, 2015	Feb. 28, 2015
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Trademarks, Gross	$ 9,589	$ 9,589
Finite-Lived Intangible Assets, Accumulated Amortization	2,168	1,411
Other intangibles, net	$ 7,421	8,178
Trademarks
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining useful life	6 years 9 months 18 days
Finite-Lived Trademarks, Gross	$ 1,240	1,240
Finite-Lived Intangible Assets, Accumulated Amortization	656	585
Other intangibles, net	$ 584	655
Patents
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining useful life	6 years
Finite-Lived Trademarks, Gross	$ 5,180	5,180
Finite-Lived Intangible Assets, Accumulated Amortization	771	401
Other intangibles, net	$ 4,409	4,779
Customer-Related Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining useful life	1 year 10 months 24 days
Finite-Lived Trademarks, Gross	$ 1,015	1,015
Finite-Lived Intangible Assets, Accumulated Amortization	374	205
Other intangibles, net	$ 641	810
Contract-Based Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining useful life	6 years 1 month 6 days
Finite-Lived Trademarks, Gross	$ 2,154	2,154
Finite-Lived Intangible Assets, Accumulated Amortization	367	220
Other intangibles, net	$ 1,787	$ 1,934