Leases - Supplemental Cash Flow and Other Lease Information (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Leases [Abstract]
Right-of-use assets obtained in exchange for lease obligations	$ 67.6	$ 27.0	$ 5.4
Operating cash flows for amounts included in the measurement of lease liabilities	$ 20.9	$ 19.2	$ 18.9