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Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Oct. 31, 2021	Jul. 31, 2021
Forward foreign currency exchange contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative instrument term (months)	12 months
Fair Value, Inputs, Level 2 | Fair Value | Fixed Interest Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt instrument, fair value disclosure	$ 392.3	$ 297.4
Fair Value, Inputs, Level 2 | Fair Value | Variable Interest Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt instrument, fair value disclosure	175.7	188.3
Fair Value, Inputs, Level 2 | Carrying Value | Fixed Interest Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt instrument, fair value disclosure	375.0	275.0
Fair Value, Inputs, Level 2 | Carrying Value | Variable Interest Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt instrument, fair value disclosure	175.7	188.3
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Equity method investments	$ 23.9	$ 24.2

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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