Financial Derivatives and Hedging - Narrative (Details) $ in Millions	3 Months Ended	6 Months Ended
Apr. 30, 2025 USD ($) interest_rate_swap_contract	Apr. 30, 2024 USD ($)	Apr. 30, 2025 USD ($) interest_rate_swap_contract	Apr. 30, 2024 USD ($)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Amount recognized in other comprehensive income on interest rate swaps contracts, net of tax	$ (12.7)	$ 31.8	$ (6.3)	$ 13.8
Amount reclassified from other comprehensive income into earnings, net of tax	(6.9)	$ (10.4)	(15.3)	$ (20.4)
Derivative loss expected to be realized in earnings over the next twelve months			(22.0)
Foreign Exchange Forward
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative notional amount	57.8		57.8
Interest rate swap contracts
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative notional amount	$ 1,600.0		$ 1,600.0
Number of interest rate swap contracts held \| interest_rate_swap_contract	8		8
Derivative, remaining maturity (less than)			3 years

The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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Nominal or face amount used to calculate payment on derivative.

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Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of interest rate derivative instruments held by the entity at the reporting date.

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Amount, after tax and before reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Amount, after tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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