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Stock Compensation - Schedule By Exercise Price Range (Details) - Stock Appreciation Rights (SARs) [Member] - $ / shares
12 Months Ended
Feb. 29, 2020
Feb. 28, 2019
Feb. 28, 2018
Feb. 28, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total Options/ SAR’s (shares) 94,826 98,184 148,513 170,139
Weighted Average Exercise Price, Outstanding (usd per share) $ 44.58 $ 44.46 $ 43.29 $ 42.02
Options / SAR’s Currently Exercisable (shares) 94,826 98,184 148,513  
Weighted Average Exercise Price, Exercisable (usd per share) $ 44.58 $ 44.46 $ 43.29  
$39.65 - $44.15        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total Options/ SAR’s (shares) 48,061      
Average Remaining Life 1 year      
Weighted Average Exercise Price, Outstanding (usd per share) $ 43.85      
$44.72 - 46.34        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total Options/ SAR’s (shares) 46,765      
Average Remaining Life 8 months 23 days      
Weighted Average Exercise Price, Outstanding (usd per share) $ 45.33      
$39.65 - $46.34        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total Options/ SAR’s (shares) 94,826      
Average Remaining Life 10 months 17 days      
Weighted Average Exercise Price, Outstanding (usd per share) $ 44.58      
Minimum [Member] | $39.65 - $44.15        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price 39.65      
Minimum [Member] | $44.72 - 46.34        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price 44.72      
Minimum [Member] | $39.65 - $46.34        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price 39.65      
Maximum [Member] | $39.65 - $44.15        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price 44.15      
Maximum [Member] | $44.72 - 46.34        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price 46.34      
Maximum [Member] | $39.65 - $46.34        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price $ 46.34