Acquisitions (Narrative) (Details) € in Millions, $ in Millions	3 Months Ended	12 Months Ended
	Apr. 30, 2023 USD ($)	Jul. 31, 2023 USD ($)	Jul. 31, 2023 EUR (€)	Oct. 31, 2023 USD ($)
Business Acquisition
Goodwill		$ 481.1		$ 469.3
Univercells Technologies
Business Acquisition
Acquisitions, net of cash acquired		147.2	€ 134.6
Goodwill		95.8
Intangible assets		52.5
Deferred tax liabilities		13.1
Add deferred tax asset		7.0
Net working capital		(0.9)
Other noncurrent assets		6.6
Other noncurrent liabilities		$ 0.7
Isolere
Business Acquisition
Acquisitions, net of cash acquired	$ 62.4
Goodwill	28.2
Intangible assets	44.5
Deferred tax liabilities	10.9
Net working capital	(0.4)
Other noncurrent assets	1.2
Other noncurrent liabilities	$ 0.2