Goodwill and Other Intangible Assets (Schedule of Expected Future Amortization Expense) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, expected amortization expense, next twelve months	$ 16.2
Finite-lived intangible assets, expected amortization expense, year two	12.5
Finite-lived intangible assets, expected amortization expense, year three	9.6
Finite-lived intangible assets, expected amortization expense, year four	7.4
Finite-lived intangible assets, expected amortization expense, year five	5.6
Finite-lived intangible assets, expected amortization expense, after year five	20.1
Amortizing intangible assets, net	$ 71.4