Income Taxes - Income Before Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2020
Income before income taxes:
United States	$ 31.4	$ (31.0)	$ (88.0)
Foreign	443.9	522.5	354.5
Income before income taxes	$ 475.3	$ 491.5	$ 266.5