Goodwill and Other Intangible Assets - Summary of Carrying Amount of Net Intangible Assets by Class (Details) - USD ($) $ in Millions	Oct. 31, 2020	Oct. 31, 2019
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Indefinite lived intangible assets	$ 13.5
Gross Intangible Assets	955.3	$ 954.9
Accumulated Amortization	240.0	178.4
Net Intangible Assets	715.3	776.5
Customer relationships
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible Assets	891.8	890.6
Accumulated Amortization	204.9	150.3
Net Intangible Assets	686.9	740.3
Trademarks and patents
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible Assets	27.4	27.0
Accumulated Amortization	14.9	9.3
Net Intangible Assets	12.5	17.7
Non-compete agreements
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible Assets	1.7	2.3
Accumulated Amortization	1.2	0.7
Net Intangible Assets	0.5	1.6
Other
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Gross Intangible Assets	20.9	21.9
Accumulated Amortization	19.0	18.1
Net Intangible Assets	1.9	3.8
Trademarks and patents
Finite Lived And Indefinite Lived Intangible Assets [Line Items]
Indefinite lived intangible assets	$ 13.5	$ 13.1