v2.4.0.8
Net Earnings Per Share (Narrative) (Details)
3 Months Ended 6 Months Ended
Aug. 31, 2013
Aug. 31, 2012
Aug. 31, 2013
Aug. 31, 2012
Net Earnings Per Share [Abstract]        
Anti-dilutive securities not included in calculation of diluted net earnings per share 1,426,163 4,266,794 1,073,635 3,678,076