Employee Benefit And Retirement Plans (Schedule Of Other Postretirement Benefit Costs) (Details) - Other Postretirement Benefit Plan [Member] - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Service cost-benefits earned during the period	$ 0.0	$ 0.1
Interest cost on projected benefit obligation	0.5	0.8
Amortization of prior service benefit and actuarial loss, net	(2.6)	(1.9)
Net periodic pension cost	$ (2.1)	$ (1.0)