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Summary of Significant Accounting Policies Shares Excluded from Calculation as Effect of Conversion into Shares of Common Stock (Details) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2014	Aug. 31, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive common share equivalents (in shares)	1,730	1,929	1,385	1,980
Stock options and restricted stock awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive common share equivalents (in shares)	1,730	1,929	1,385	1,980

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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