Income Taxes (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Equity Method Investment, Summarized Financial Information, Income Tax		$ 15.2	$ 9.2
Current
Federal	0.7	1.4	(8.8)
State and local	0.6	0	2.5
Current domestic taxes	1.3	1.4	(6.3)
Foreign	13.0	10.5	8.0
Total current taxes	14.3	11.9	1.7
Deferred
Federal	45.0	36.6	16.0
State and local	5.6	5.3	(3.1)
Deferred domestic taxes	50.6	41.9	12.9
Foreign	10.8	11.7	11.5
Total deferred taxes	$ 61.4	$ 53.6	$ 24.4