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Stock-based Compensation (Details 1) - Stock Appreciation Rights (SARs) [Member] - $ / shares
3 Months Ended
May 31, 2020
Feb. 29, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 93,464 94,826
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 44.57 $ 44.58
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments, Number of Shares [Roll Forward]    
Granted (shares) 0  
Exercised (shares) 0  
Forfeited (shares) (1,362)  
Exercisable at the ending of the period 93,464  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instrument, Weighted Average Grant Date Fair Value [Roll Forward]    
Granted, Weighted Average Exercise Price (usd per share) $ 0  
Exercised, Weighted Average Exercise Price (usd per share) 0  
Forfeited, Weighted Average Exercise Price (usd per share) 45.36  
Exercisable at the ending of the period $ 44.57