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Goodwill and Intangible Assets (Expected Amortization Expense Relating to Existing Intangible Assets) (Details) - USD ($)
$ in Millions
Jul. 31, 2023
Jul. 31, 2022
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity    
2024 $ 15.2  
2025 15.0  
2026 13.9  
2027 13.4  
2028 13.0  
Thereafter 117.6  
Net $ 188.1 $ 99.8