Stockholders' Equity - Components and Activity of AOCL (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Components and activity of accumulated other comprehensive loss
Balance as of the beginning of the fiscal period	$ (1,351.7)	$ (1,151.1)	$ (1,114.8)
Other comprehensive (income) loss before reclassifications	(11.4)	12.2
Amounts reclassified from AOCL	15.3	(5.1)
Net current period other comprehensive (income) loss	3.9	7.1	(8.3)
Balance as of the end of the fiscal period	(1,510.9)	(1,351.7)	(1,151.1)
Total
Components and activity of accumulated other comprehensive loss
Balance as of the beginning of the fiscal period	33.1	26.0	34.3
Net current period other comprehensive (income) loss	3.9	7.1	(8.3)
Balance as of the end of the fiscal period	37.0	33.1	26.0
Foreign Currency Translation Adjustments
Components and activity of accumulated other comprehensive loss
Balance as of the beginning of the fiscal period	51.3	19.5
Other comprehensive (income) loss before reclassifications	(9.6)	31.8
Amounts reclassified from AOCL	0.0	0.0
Net current period other comprehensive (income) loss	(9.6)	31.8
Balance as of the end of the fiscal period	41.7	51.3	19.5
Pension Benefits
Components and activity of accumulated other comprehensive loss
Balance as of the beginning of the fiscal period	3.6	3.9
Other comprehensive (income) loss before reclassifications	0.7	(0.3)
Amounts reclassified from AOCL	0.0	0.0
Net current period other comprehensive (income) loss	0.7	(0.3)
Balance as of the end of the fiscal period	4.3	3.6	3.9
Cash Flow Derivative Instruments
Components and activity of accumulated other comprehensive loss
Balance as of the beginning of the fiscal period	(21.8)	2.6
Other comprehensive (income) loss before reclassifications	(2.5)	(19.3)
Amounts reclassified from AOCL	15.3	(5.1)
Net current period other comprehensive (income) loss	12.8	(24.4)
Balance as of the end of the fiscal period	$ (9.0)	$ (21.8)	$ 2.6