Employee Benefits - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Termination benefits expense	$ 35.0
Defined benefit obligation, actuarial gain (loss)	$ 4.7	$ (26.4)
Expected long-term return on diversified portfolio	8.00%
Fair value of plan assets	$ 165.4	163.7	$ 137.6
Expected future employer contributions	$ 3.6
Maximum annual contributions per employee in 401k savings plan	75.00%
Contributions by employer in 401k savings plan	$ 11.6	10.1	$ 10.1
Fixed Income Investments | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	15.2	26.7
Cash and cash equivalents | Fair Value, Inputs, Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 3.3	$ 5.7
Minimum | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Diversified portfolio, allocation of assets in equities	50.00%
Maximum | Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Diversified portfolio, allocation of assets in equities	70.00%
Change In Assumptions For Defined Benefit Plans, Change In Key Assumptions
Defined Benefit Plan Disclosure [Line Items]
Defined benefit obligation, actuarial gain (loss)	$ 6.7
Change In Assumptions For Defined Benefit Plans, Change In Demographic Experience
Defined Benefit Plan Disclosure [Line Items]
Defined benefit obligation, actuarial gain (loss)	(2.0)
Change In Assumptions For Defined Benefit Plans, Change In Discount Rate
Defined Benefit Plan Disclosure [Line Items]
Defined benefit obligation, actuarial gain (loss)	$ 6.7