Derivative Instruments and Hedging Activities - Effects of Master Netting Arrangements (Details) - USD ($) $ in Millions	Oct. 31, 2023	Oct. 31, 2022
Derivative assets:
Net amount of derivative assets	$ 16.8	$ 33.2
Derivative liabilities:
Net amount of derivative liabilities	0.0	0.0
Forward currency contracts
Derivative assets:
Gross amount of derivative assets	16.8	33.2
Derivative liabilities offsetting derivative assets	0.0	0.0
Net amount of derivative assets	16.8	33.2
Derivative liabilities:
Gross amount of derivative liabilities	0.0	0.0
Derivative assets offsetting derivative liabilities	0.0	0.0
Net amount of derivative liabilities	$ 0.0	$ 0.0