Summary of Significant Accounting Policies Calculation of Basic and Diluted Net Income Per Share from Continuing Operations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2015	Aug. 31, 2014	Aug. 31, 2015	Aug. 31, 2014
Basic net (loss) income per common share:
Net (loss) income available to common shareholders from continuing operations	$ 4,394	$ 2,760	$ 5,919	$ 3,716
Impact of conversion of preferred stock into common stock	0		0
Diluted net (loss) income per common share:
Net income available to common shareholders from continuing operations	$ 4,394	$ 2,760	$ 5,919	$ 3,716
Basic shares:
Basic weighted average common shares outstanding (in shares)	43,798	42,525	43,537	42,337
Impact of equity awards (in shares)	1,238	2,753	1,608	2,876
Impact of conversion of preferred stock into common stock (in shares)	2,215	2,266	2,241	2,266
Diluted shares:
Diluted weighted average common shares outstanding (in shares)	47,251	47,544	47,386	47,479
Basic net income per common share:
Net income available to common shareholders from continuing operations, per basic shares (in dollars per share)	$ 0.10	$ 0.06	$ 0.14	$ 0.09
Impact of equity awards (in dollars per share)
Impact of conversion of preferred stock into common stock (in dollars per share)
Diluted net income per common share:
Net income available to common shareholders from continuing operations, per dilutive shares (in dollars per share)	$ 0.09	$ 0.06	$ 0.12	$ 0.08