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Employee Benefits - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2023 | Oct. 31, 2022 | Oct. 31, 2021
Defined Benefit Plan Disclosure [Line Items] |  |  |
Accumulated benefit obligation | $ 131.5 | $ 134.9 | $ 207.6
Discount rate | 5.74% | 2.76% | 2.78%
Defined benefit obligation, actuarial gain (loss) | $ 10.9 | $ 93.2 | $ (2.0)
Expected long-term return on diversified portfolio | 8.00% |  |
Employer contributions | $ 1.1 | 0.0 | 12.7
Expected future employer contributions | $ 1.1 |  |
Maximum annual contributions per employee in 401k savings plan | 75.00% |  |
Contributions by employer in 401k savings plan | $ 10.1 | $ 9.0 | $ 7.2
Minimum | Equity Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Diversified portfolio, allocation of assets in equities | 50.00% |  |
Maximum | Equity Securities |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Diversified portfolio, allocation of assets in equities | 70.00% |  |
Change In Assumptions For Defined Benefit Plans, Change In Key Assumptions |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit obligation, actuarial gain (loss) | $ 12.9 |  |
Change In Assumptions For Defined Benefit Plans, Change In Demographic Experience |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit obligation, actuarial gain (loss) | (2.0) |  |
Change In Assumptions For Defined Benefit Plans, Change In Discount Rate |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit obligation, actuarial gain (loss) | 7.8 |  |
Change In Assumptions For Defined Benefit Plans, Change In Lump Sum Determination |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined benefit obligation, actuarial gain (loss) | $ 5.1 |  |

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- Definition Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate, Projected Benefit Obligation + References No definition available. + Details
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- Definition Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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- Definition Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
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