Employee Benefits (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Estimated net loss in the next fiscal year	$ 1.7
Discount rate for determining benefit obligations at year end	3.75%	3.74%	4.25%
Projected defined benefit plan benefit obligation	$ 152.0
Projected defined accumulated benefit obligation	$ 133.5
Diversified portfolio, allocation of assets in equities	100.00%	100.00%	100.00%
Expected long-term return on diversified portfolio	8.00%
Company's contribution to the pension plan	$ 10.0	$ 10.0	$ 10.0
Expected future contribution in pension plan	$ 10.0
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent	75.00%
Deferral contributions, net of forfeiture credits	$ 5.2	$ 4.4	$ 4.2
Minimum [Member] \| Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Diversified portfolio, allocation of assets in equities	50.00%
Maximum [Member] \| Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Diversified portfolio, allocation of assets in equities	80.00%

Defined benefit plan, expected long-term return on diversified portfolio.

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- Definition

Projected Accumulated Defined Benefit Obligation

+ References

No definition available.

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Projected defined benefit plan benefit obligation.

+ References

No definition available.

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- Definition

The amount of payment into the fund established for purposes of making future disbursements to the individual in accordance with the terms and understanding of the deferred compensation arrangement.

+ References

No definition available.

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- Definition

The interest rate used to adjust for the time value of money for the plan.

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- Definition

Amount of contributions made by the employer to defined benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(5)(ii)
-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920

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-Topic 715
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-Section 35
-Paragraph 123
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-URI http://asc.fasb.org/extlink&oid=64937487&loc=d3e36068-114959

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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.

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- Definition

Amount included in accumulated other comprehensive income (AOCI) related to gain (loss) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position.

+ References

No definition available.

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- Definition

Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 5
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-URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e2446-114920

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- Definition

Amount of employer's best estimate of contributions expected to be paid to the plan during the next fiscal year beginning after the date of the latest statement of financial position.

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

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