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Employee Benefits (Tables) | 12 Months Ended
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Oct. 31, 2017
Compensation and Retirement Disclosure [Abstract] |
Schedule of Changes in Benefit Obligation and Changes in Plan Assets | The following table sets forth the Plan's benefit obligations and fair value of the Plan assets at October 31, 2017, and the funded status of the Plan and net periodic pension costs for each of the years in the three-year period ended October 31, 2017. Retirement Income Plan
Years Ended October 31, (In millions) | 2017 |  | 2016 |  | 2015
Change in benefit obligation |  |  |  |  |
Benefit obligation, beginning of year | $ | 138.9 |  |  | $ | 117.3 |  |  | $ | 101.1 |
Service cost | 10.2 |  |  | 8.9 |  |  | 8.8 |
Interest cost | 4.4 |  |  | 4.3 |  |  | 4.6 |
Benefits paid | (2.6 | ) |  | (2.3 | ) |  | (4.7 | )
Actuarial loss (gain) | 0.8 |  |  | 10.7 |  |  | 7.5 |
Benefit obligation, end of year | $ | 151.7 |  |  | $ | 138.9 |  |  | $ | 117.3 |
Change in plan assets |  |  |  |  |
Fair value of plan assets, beginning of year | $ | 89.2 |  |  | $ | 79.5 |  |  | $ | 72.2 |
Actual return on plan assets | 16.2 |  |  | 2.0 |  |  | 2.0 |
Employer contributions | 10.0 |  |  | 10.0 |  |  | 10.0 |
Benefits paid | (2.6 | ) |  | (2.3 | ) |  | (4.7 | )
Fair value of plan assets, end of year | $ | 112.8 |  |  | $ | 89.2 |  |  | $ | 79.5 |
Funded status at end of year | $ | (38.9 | ) |  | $ | (49.7 | ) |  | $ | (37.8 | )
Schedule of Amounts Recognized in Balance Sheet |
Years Ended October 31, (In millions) | 2017 |  | 2016 |  | 2015
Amounts recognized in the statement of financial position consist of: |  |  |  |  |
Noncurrent asset | $ | — |  |  | $ | — |  |  | $ | — |
Current liability | — |  |  | — |  |  | — |
Noncurrent liabilities | (38.9 | ) |  | (49.7 | ) |  | (37.8 | )
Net amount recognized at year end | $ | (38.9 | ) |  | $ | (49.7 | ) |  | $ | (37.8 | )
Schedule of Amounts Recognized in Accumulated Other Comprehensive Income |
Years Ended October 31, (In millions) | 2017 |  | 2016 |  | 2015
Amounts recognized in accumulated other comprehensive income consist of: |  |  |  |  |
Net transition obligation | $ | — |  |  | $ | — |  |  | $ | — |
Prior service cost | — |  |  | — |  |  | — |
Net loss | 34.9 |  |  | 45.8 |  |  | 32.1 |
Accumulated other comprehensive income | $ | 34.9 |  |  | $ | 45.8 |  |  | $ | 32.1 |
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets |
Years Ended October 31, (In millions) | 2017 |  | 2016 |  | 2015
Information for pension plans with accumulated benefit obligations in excess of plan assets |  |  |  |  |
Projected benefit obligation | $ | 151.7 |  |  | $ | 138.9 |  |  | $ | 117.3 |
Accumulated benefit obligation | $ | 133.3 |  |  | $ | 121.2 |  |  | $ | 102.6 |
Fair value of plan assets | $ | 112.8 |  |  | $ | 89.2 |  |  | $ | 79.5 |
Schedule of Reconciliation of Prepaid (Accrued) Pension Cost |
Years Ended October 31, (In millions) | 2017 |  | 2016 |  | 2015
Reconciliation of prepaid (accrued) pension cost |  |  |  |  |
Accrued pension cost at prior fiscal year end | $ | (4.0 | ) |  | $ | (5.7 | ) |  | $ | (6.8 | )
Net periodic benefit cost | 10.0 |  |  | 8.3 |  |  | 8.9 |
Contributions made during the year | 10.0 |  |  | 10.0 |  |  | 10.0 |
Accrued pension cost at fiscal year end | $ | (4.0 | ) |  | $ | (4.0 | ) |  | $ | (5.7 | )
Schedule of Components of Net Periodic Pension Costs |
Years Ended October 31, (In millions) | 2017 |  | 2016 |  | 2015
Components of net periodic benefit cost and other amounts recognized in the fiscal year |  |  |  |  |
Net periodic benefit cost: |  |  |  |  |
Service cost | $ | 10.2 |  |  | $ | 8.9 |  |  | $ | 8.8 |
Interest cost | 4.4 |  |  | 4.3 |  |  | 4.6 |
Expected return on plan assets | (7.3 | ) |  | (6.6 | ) |  | (6.0 | )
Amortization of transitional (asset) or obligation | — |  |  | — |  |  | — |
Amortization of prior service cost | — |  |  | — |  |  | — |
Recognized actuarial loss | 2.7 |  |  | 1.7 |  |  | 1.5 |
Net periodic pension cost | $ | 10.0 |  |  | $ | 8.3 |  |  | $ | 8.9 |
Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) |
Years Ended October 31, (In millions) | 2017 |  | 2016 |  | 2015
Other changes in plan assets and benefit obligations recognized in other comprehensive income |  |  |  |  |  |  |  |
Net transition obligation | $ | — |  |  | $ | — |  |  | $ | — |
Prior service cost | — |  |  | — |  |  | — |
Net loss (gain) | (8.1 | ) |  | 15.4 |  |  | 11.5 |
Amortizations of net transition obligation | — |  |  | — |  |  | — |
Amortizations of prior service cost | — |  |  | — |  |  | — |
Amortizations of net (gain) | (2.7 | ) |  | (1.7 | ) |  | (1.5 | )
Total recognized in other comprehensive income | $ | (10.8 | ) |  | $ | 13.7 |  |  | $ | 10.0 |
Total recognized in net periodic benefit cost and other comprehensive income | $ | (0.8 | ) |  | $ | 22.0 |  |  | $ | 18.9 |
Schedule of Weighted-Average Assumptions Used in Computing the Net Periodic Pension Cost and Projected Benefit Obligation |
Years Ended October 31, | 2017 |  | 2016 |  | 2015
Weighted-average assumptions used in computing the net periodic pension cost and projected benefit obligation at year end: |  |  |  |  |
Discount rate for determining net periodic pension cost: |  |  |  |  |
Projected Benefit Obligation | 3.74 | % |  | 4.25 | % |  | 4.25 | %
Service Cost | 3.90 | % |  | 4.42 | % |  | 4.25 | %
Interest Cost | 3.23 | % |  | 3.70 | % |  | 4.25 | %
Discount rate for determining benefit obligations at year end | 3.75 | % |  | 3.74 | % |  | 4.25 | %
Rate of compensation increase for determining expense | 4.00 | % |  | 4.00 | % |  | 4.00 | %
Rate of compensation increase for determining benefit obligations at year end | 4.00 | % |  | 4.00 | % |  | 4.00 | %
Expected rate of return on plan assets for determining net periodic pension cost | 8.00 | % |  | 8.00 | % |  | 8.00 | %
Expected rate of return on plan assets at year end | 8.00 | % |  | 8.00 | % |  | 8.00 | %
Measurement date for determining assets and benefit obligations at year end | 10/31/2017 |  |  | 10/31/2016 |  |  | 10/31/2015 |
Schedule of Weighted-Average Asset Allocations by Asset Category | Weighted-average asset allocations at year end, by asset category are as follows:
Years Ended October 31, | 2017 |  | 2016 |  | 2015
Asset category |  |  |  |  |
Cash and cash equivalents | 0.9 | % |  | 4.9 | % |  | 2.2 | %
Corporate common stock | 12.2 | % |  | 8.9 | % |  | 9.0 | %
Equity mutual funds | 49.9 | % |  | 47.2 | % |  | 52.0 | %
Real estate funds | 2.9 | % |  | 4.3 | % |  | 3.3 | %
Bond mutual funds | 34.1 | % |  | 34.7 | % |  | 33.5 | %
Total | 100.0 | % |  | 100.0 | % |  | 100.0 | %
Schedule of Fair Value Measurement of Plan Assets | Fair Value Measurement of Plan Assets
(In millions) | Total |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Asset category |  |  |  |  |  |  |
Cash and cash equivalents | $ | 1.1 |  |  | $ | 1.1 |  |  | $ | — |  |  | $ | — |
Corporate common stock | 13.7 |  |  | 13.7 |  |  | — |  |  | — |
Equity mutual funds | 56.2 |  |  | 56.2 |  |  | — |  |  | — |
Real estate funds | 3.3 |  |  | 3.3 |  |  | — |  |  | — |
Bond mutual funds | 38.5 |  |  | 38.5 |  |  | — |  |  | — |
Total | $ | 112.8 |  |  | $ | 112.8 |  |  | $ | — |  |  | $ | — |
Schedule of Estimated Future Benefit Payments | Estimated Future Benefit Payments
Years (In millions) |
2018 | $ | 3.3 |
2019 | $ | 3.8 |
2020 | $ | 4.3 |
2021 | $ | 4.8 |
2022 | $ | 5.4 |
2023-2027 | $ | 36.1 |

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