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Employee Retirement and Deferred Compensation Plans (Details Textual) $ in Millions | 12 Months Ended
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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 |

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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(1) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount of cost for defined contribution plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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