Income Taxes (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Equity Method Investment, Summarized Financial Information, Income Tax	$ 7.8	$ 15.4
Current
Federal	6.0	5.6	$ 0.7
State and local	0.0	(0.2)	0.6
Current domestic taxes	6.0	5.4	1.3
Foreign	16.9	15.3	13.0
Total current taxes	22.9	20.7	14.3
Deferred
Federal	55.8	44.7	45.0
State and local	10.5	33.7	5.6
Deferred domestic taxes	66.3	78.4	50.6
Foreign	6.5	11.8	10.8
Total deferred taxes	$ 72.8	$ 90.2	$ 61.4