Fair Value Measurements (Fair Value Of Outstanding Derivatives In Consolidated Balance Sheets) (Details) - USD ($) $ in Millions	Jul. 31, 2019	Jul. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional Amounts	$ 84.0	$ 19.3
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	2.7	0.7
Liabilities	(3.7)	(1.0)
Forward foreign currency exchange contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional Amounts	28.2	19.3
Forward foreign currency exchange contracts \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	1.6	0.7
Liabilities	(1.8)	(1.0)
Net investment hedge
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional Amounts	55.8	0.0
Net investment hedge \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Assets	1.1	0.0
Liabilities	$ (1.9)	$ 0.0

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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+ References

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-SubTopic 20
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