Employee Retirement and Deferred Compensation Plans (Details Textual) $ in Millions	12 Months Ended
	Oct. 31, 2019 USD ($)	Oct. 31, 2018 USD ($)	Oct. 31, 2017 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost	$ 14.1	$ 12.6	$ 12.3
Number of Unfunded Defined Benefit Retirement Plans	2
Normal retirement age	58
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	2.61%	4.06%	3.19%
Defined Benefit Plan Unfunded Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Accrued for obligations under the plan	$ 31.1	$ 27.0