Intangible Assets and Goodwill Finite-lived Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended
	May. 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	1,790	1,411
Other intangibles, net	$ 7,799	8,178
Trademarks
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining useful life	7 years
Finite-Lived Trademarks, Gross	$ 1,240	1,240
Finite-Lived Intangible Assets, Accumulated Amortization	620	585
Other intangibles, net	$ 620	655
Patents
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining useful life	6 years 2 months 12 days
Finite-Lived Trademarks, Gross	$ 5,180	5,180
Finite-Lived Intangible Assets, Accumulated Amortization	586	401
Other intangibles, net	$ 4,594	4,779
Customer-Related Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining useful life	2 years 1 month 6 days
Finite-Lived Trademarks, Gross	$ 1,015	1,015
Finite-Lived Intangible Assets, Accumulated Amortization	290	205
Other intangibles, net	$ 725	810
Contract-Based Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining useful life	6 years 3 months 18 days
Finite-Lived Trademarks, Gross	$ 2,154	2,154
Finite-Lived Intangible Assets, Accumulated Amortization	294	220
Other intangibles, net	$ 1,860	$ 1,934