Employee Benefit And Retirement Plans (Narrative) (Details) $ in Millions	3 Months Ended	9 Months Ended
	Mar. 31, 2015 USD ($)	Sep. 30, 2015 USD ($) Unit	Sep. 30, 2014 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Benefit Arrangement, Employer Contributions		$ 16.4	$ 16.1
Number of Employees U.S. Pension Lump Sum Offer | Unit		3,300
percent of benefit obligation to total obligation - lump sum offer		13.00%
Benefit obligation associated with employees offered the one-time lump sum election		$ 120.0
Primary U.S. Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer	$ 70.0