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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Apr. 30, 2021 | Apr. 30, 2020 | Apr. 30, 2021 | Apr. 30, 2020
Effective Income Tax Rate Reconciliation, Percent | 11.40% | 23.10% | 17.30% | 10.80%
Tax Adjustments, Settlements, and Unusual Provisions |  |  | $ 19.8 |
Share-based Payment Arrangement, Expense, Tax Benefit | $ 4.9 | $ 8.8 | $ 18.9 | $ 86.0
Tax benefits recognized provided percentage of likelihood of realization is more than |  |  | 50.00% |

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