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Share-based Compensation - Schedule By Exercise Price Range (Details) - Stock Appreciation Rights (SARs) - $ / shares
12 Months Ended
Feb. 28, 2021
Feb. 29, 2020
Feb. 28, 2019
Feb. 28, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average exercise price (usd per share) $ 45.25 $ 44.58 $ 44.46 $ 43.29
44.15 - 44.15        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total Options/ SAR’s (shares) 2,711      
Average Remaining Life 2 months 1 day      
Weighted Average Exercise Price, Outstanding (usd per share) $ 44.15      
46.34 - 46.34        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total Options/ SAR’s (shares) 2,724      
Average Remaining Life 6 months 3 days      
Weighted Average Exercise Price, Outstanding (usd per share) $ 46.34      
44.15 - 46.34        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total Options/ SAR’s (shares) 5,435      
Average Remaining Life 4 months 2 days      
Weighted Average Exercise Price, Outstanding (usd per share) $ 45.25      
Minimum | 44.15 - 44.15        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average exercise price (usd per share) 44.15      
Minimum | 46.34 - 46.34        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average exercise price (usd per share) 46.34      
Minimum | 44.15 - 46.34        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average exercise price (usd per share) 44.15      
Maximum | 44.15 - 44.15        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average exercise price (usd per share) 44.15      
Maximum | 46.34 - 46.34        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average exercise price (usd per share) 46.34      
Maximum | 44.15 - 46.34        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted average exercise price (usd per share) $ 46.34