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Stock-Based Compensation (Narratives) (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Apr. 30, 2022
Apr. 30, 2021
Apr. 30, 2022
Apr. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award        
Options granted, grant date fair value (in usd per share)     $ 14.24 $ 10.23
Employee Stock Option        
Share-based Compensation Arrangement by Share-based Payment Award        
Pretax performance-based award expense (adjustments) $ 1.4 $ 1.8 $ 10.2 $ 9.3
Performance Shares        
Share-based Compensation Arrangement by Share-based Payment Award        
Pretax performance-based award expense (adjustments) $ 1.8 $ (0.8) $ 5.6 $ 1.2
2019 Master Stock Incentive Plan | Employee Stock Option        
Share-based Compensation Arrangement by Share-based Payment Award        
Stock options exercisable term (in years)     10 years  
Stock option, award vesting period (in years)     3 years  
2019 Master Stock Incentive Plan | Performance Shares        
Share-based Compensation Arrangement by Share-based Payment Award        
Performance award measurement period (in years)     3 years  
Expiration period (in years)     3 years  
2019 Master Stock Incentive Plan | Performance Shares | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award        
Payout percentage based on target award (as a percent)     0.00%  
2019 Master Stock Incentive Plan | Performance Shares | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award        
Payout percentage based on target award (as a percent)     200.00%