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Shareholders' Equity - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Feb. 28, 2014
Feb. 28, 2013
Feb. 29, 2012
Statement Of Stockholders Equity [Abstract]      
Repurchase of common stock through a stock repurchase program $ 5.0    
Share purchased under the repurchase program 215,902    
Average price from inception of program $ 13.15    
Common stock shares repurchased 119,902    
Common stock average price, repurchased $ 15.31    
Additional Authorized amount available to repurchase shares   5.0  
Total amount available to repurchase of shares   $ 9.0  
Shares purchased unrelated to stock repurchase program 112 175 100