Fair Value Measurements (Derivatives on the Balance Sheet) (Details) - Fair Value, Inputs, Level 2 - USD ($) $ in Millions	Jan. 31, 2022	Jul. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notional amounts	$ 342.4	$ 327.2
Derivative assets	3.9	2.6
Derivative liabilities	3.2	3.6
Designated as hedging instruments
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notional amounts	126.5	173.0
Derivative assets	2.6	2.1
Derivative liabilities	1.5	3.2
Designated as hedging instruments \| Net investment hedge
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notional amounts	55.8	55.8
Derivative assets	1.1	1.1
Derivative liabilities	0.1	2.0
Designated as hedging instruments \| Forward foreign currency exchange contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notional amounts	70.7	117.2
Derivative assets	1.5	1.0
Derivative liabilities	1.4	1.2
Not designated as hedging instruments
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notional amounts	215.9	154.2
Derivative assets	1.3	0.5
Derivative liabilities	1.7	0.4
Not designated as hedging instruments \| Forward foreign currency exchange contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Notional amounts	215.9	154.2
Derivative assets	1.3	0.5
Derivative liabilities	$ 1.7	$ 0.4

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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