XML 43 R81.htm IDEA: XBRL DOCUMENT v3.20.1
Share-Based Compensation Plans - Non-Vested Stock Option Activity (Details) - $ / shares
 12 Months Ended
Feb. 29, 2020
Feb. 28, 2019
Feb. 28, 2018
Non- Vested Options      
Grants (in shares) 0 0 0
Stock options      
Non- Vested Options      
Outstanding at the beginning of the period (in shares) 37,000 125,000 280,000
Grants (in shares) 0 0 0
Vested or forfeited (in shares) (35,000) (88,000) (155,000)
Outstanding at the end of the period (in shares) 2,000 37,000 125,000
Weighted Average Grant Date Fair Value (per share)      
Outstanding at the beginning of the period (in dollars per share) $ 30.44 $ 19.31 $ 22.48
Grants (in dollars per share) 0 0 0
Vested or forfeited (in dollars per share) 27.36 14.67 25.02
Outstanding at the end of the period (in dollars per share) $ 74.09 $ 30.44 $ 19.31