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Earnings per Share (Details) - shares
shares in Thousands
3 Months Ended 6 Months Ended
Aug. 31, 2015
Aug. 31, 2014
Aug. 31, 2015
Aug. 31, 2014
Weighted average diluted securities        
Weighted average shares outstanding, basic 28,435 28,372 28,478 28,738
Incremental shares from share-based payment arrangements 551 397 559 454
Weighted average shares outstanding, diluted 28,986 28,769 29,037 29,192
Employee and Directors stock options        
Weighted average diluted securities        
Dilutive securities (in shares) 705 687 751 708
Restricted stock (RSA)        
Weighted average diluted securities        
Dilutive securities (in shares) 291 260 292 246