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Earnings per Share - Antidilution (Details) - shares
shares in Thousands
3 Months Ended 9 Months Ended
Nov. 30, 2015
Nov. 30, 2014
Nov. 30, 2015
Nov. 30, 2014
Employee and Directors stock options        
Antidilutive securities, as a result of out of the money        
Antidilutive securities (in shares) 139 245 162 240