Commitments and Contingencies - Schedule of Total Minimum Annual Rental Obligations under Noncancelable Leases (Details) $ in Millions	Oct. 31, 2019 USD ($)
Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2020	$ 38.5
2021	34.9
2022	31.2
2023	28.0
2024	26.5
2025 and thereafter	173.6
Total	$ 332.7