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Earnings per Share (Details)
In Thousands, unless otherwise specified
3 Months Ended
May 31, 2013
May 31, 2012
Weighted average diluted securities    
Weighted average shares outstanding, basic 31,908 31,699
Incremental shares of common stock attributable to share-based payment arrangements 272 141
Weighted average shares outstanding, diluted 32,180 31,840
Dilutive securities, as a result of in-the-money options (in shares) 199 423
Dilutive securities, as a result of unvested restricted shares 234  
Antidilutive securities, as a result of out-of-the-money options (in shares) 797 625