Employee Benefits (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($)
Funded Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension Contributions	$ 2.0
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year	2.0
Unfunded Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension Contributions	1.1
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year	2.5
Other Postretirement Benefit Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plans, Estimated Future Employer Contributions in Current Fiscal Year	0.2
Other Postretirement Benefits Payments	$ 0.1