Employee Benefit Plans (Schedule of Expected Benefit Payments) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Estimated future benefit payments, 2014	$ 1.7
Estimated future benefit payments, 2015	1.7
Estimated future benefit payments, 2016	2.9
Estimated future benefit payments, 2017	2.8
Estimated future benefit payments, 2018	2.8
Estimated future benefit payments, 2019-2023	15.7
Other Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Estimated future benefit payments, 2014	1.1
Estimated future benefit payments, 2015	1.0
Estimated future benefit payments, 2016	1.0
Estimated future benefit payments, 2017	1.1
Estimated future benefit payments, 2018	1.2
Estimated future benefit payments, 2019-2023	$ 7.1