Summary of Significant Accounting Policies Calculation of Basic and Diluted Net Income Per Share from Continuing Operations (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	May 31, 2014	May 31, 2013
Basic net (loss) income per common share:
Net (loss) income available to common shareholders from continuing operations	$ 956	$ 3,725
Impact of equity awards
Impact of conversion of preferred stock into common stock	0	(249)
Diluted net (loss) income per common share:
Net income available to common shareholders from continuing operations	$ 956	$ 3,476
Basic shares:
Basic weighted average common shares outstanding (in shares)	42,093	41,174
Impact of equity awards (in shares)	2,988	2,043
Impact of conversion of preferred stock into common stock (in shares)	2,266	2,287
Diluted shares:
Diluted weighted average common shares outstanding (in shares)	47,347	45,504
Basic net income per common share:
Net income available to common shareholders from continuing operations, per basic shares (in dollars per share)	$ 0.02	$ 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)	$ 0.02	$ 0.08