Employee Benefits (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Defined Benefit Plan Disclosure [Line Items]
Estimated net loss in the next fiscal year	$ 2.7
Discount rate for determining benefit obligations at year end	3.74%	4.25%	4.25%
Projected defined benefit plan benefit obligation	$ 126.7
Projected defined accumulated benefit obligation	$ 111.2
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	$ 8.8
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	$ 4.4	$ 4.2	$ 4.0
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%