Income Taxes - Components of the Provisions for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Current provision:
Federal	$ 94.4	$ 94.7	$ 90.2
State	17.0	19.1	16.0
Foreign	7.3	7.7	9.2
Total current provision	118.7	121.5	115.4
Deferred (benefit) provision:
Federal	(37.8)	(7.4)	(18.4)
State	(10.3)	(4.9)	(6.5)
Foreign	0.2	0.0	(0.6)
Total deferred benefit	(47.9)	(12.3)	(25.5)
Total provision for income taxes	$ 70.8	$ 109.2	$ 89.9