Fair Value Measurements - Recurring Fair Value Measurements (Details) - USD ($) $ in Millions	Oct. 31, 2023	Oct. 31, 2022
Assets:
Forward currency contracts	$ 16.8	$ 33.2
Liabilities:
Forward currency contracts	0.0	0.0
Forward currency contracts
Assets:
Forward currency contracts	16.8	33.2
Liabilities:
Forward currency contracts	0.0	0.0
Measured on a recurring basis
Assets:
Total assets	16.8	33.2
Liabilities:
Total liabilities	0.0	0.0
Measured on a recurring basis | Forward currency contracts
Assets:
Forward currency contracts	16.8	33.2
Liabilities:
Forward currency contracts	0.0	0.0
Measured on a recurring basis | Level 1
Assets:
Total assets	0.0	0.0
Liabilities:
Total liabilities	0.0	0.0
Measured on a recurring basis | Level 1 | Forward currency contracts
Assets:
Forward currency contracts	0.0	0.0
Liabilities:
Forward currency contracts	0.0	0.0
Measured on a recurring basis | Level 2
Assets:
Total assets	16.8	33.2
Liabilities:
Total liabilities	0.0	0.0
Measured on a recurring basis | Level 2 | Forward currency contracts
Assets:
Forward currency contracts	16.8	33.2
Liabilities:
Forward currency contracts	0.0	0.0
Measured on a recurring basis | Level 3
Assets:
Total assets	0.0	0.0
Liabilities:
Total liabilities	0.0	0.0
Measured on a recurring basis | Level 3 | Forward currency contracts
Assets:
Forward currency contracts	0.0	0.0
Liabilities:
Forward currency contracts	$ 0.0	$ 0.0