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Pension And Other Post-Retirement Benefits (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position	$ (89.8)	$ (99.5)
Other Post-Retirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Contribution to pension plans for continuing operations		$ 0.3
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Expected required contributions	8.4
Contribution to pension plans for continuing operations	7.0
Accrued Expenses [Member]
Defined Benefit Plan Disclosure [Line Items]
Liability, Defined Benefit Plan, Current	$ 0.6

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Defined benefit plan estimated required future employer contributions in current fiscal year.

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- Definition

Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans.

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