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SHARE-BASED COMPENSATION PLANS - Non-vested stock option activity (Details) - Stock Option Officers Employees and Consultants - $ / shares
shares in Thousands
 12 Months Ended
Feb. 29, 2016
Feb. 28, 2015
Feb. 28, 2014
Non-Vested Options      
Outstanding at the beginning of the period (in shares) 674 728 689
Grants (in shares) 186 257 264
Vested or forfeited (in shares) (339) (311) (225)
Outstanding at the end of the period (in shares) 521 674 728
Weighted Average Grant Date Fair Value (per share)      
Outstanding at the beginning of the period (in dollars per share) $ 16.98 $ 12.74 $ 12.62
Grants (in dollars per share) 28.82 25.22 11.61
Vested or forfeited (in dollars per share) 17.59 13.87 11.06
Outstanding at the end of the period (in dollars per share) $ 20.81 $ 16.98 $ 12.74