Employee Retirement and Deferred Compensation Plans (Details Textual) $ in Millions	12 Months Ended
	Oct. 31, 2021 USD ($) numberOfRetirementPlans	Oct. 31, 2020 USD ($)	Oct. 31, 2019 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined contribution plan cost	$ 15.5	$ 6.1	$ 14.1
Number of unfunded defined benefit retirement plans | numberOfRetirementPlans	2
Discount rate in our calculation of the present value of our projected benefit obligations	2.27%	1.95%	2.61%
Defined Benefit Plan Unfunded Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Accrued for obligations under the plan	$ 36.3	$ 35.1