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Employee Retirement and Deferred Compensation Plans (Details Textual) $ in Millions | 12 Months Ended
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Oct. 31, 2020 USD ($) numberOfRetirementPlans | Oct. 31, 2019 USD ($) | Oct. 31, 2018 USD ($)
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Contribution Plan, Cost | $ 6.1 | $ 14.1 | $ 12.6
Number of Unfunded Defined Benefit Retirement Plans | numberOfRetirementPlans | 2 |  |
Normal retirement age | 58 |  |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 1.95% | 2.61% | 4.06%
Defined Benefit Plan Unfunded Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Accrued for obligations under the plan | $ 35.1 | $ 31.1 |

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- Definition Normal retirement age under the defined benefit retirement plans. + References No definition available. + Details
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- Definition Number of unfunded defined benefit retirement plans. + References No definition available. + Details
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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=118255775&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=118255775&loc=d3e1928-114920 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + 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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