Income Taxes Income Taxes - Schedule of Current and Deferred Tax Assets (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Current Income Tax Assets	$ 28.5	$ 9.5
Deferred Income Tax Assets	0.0	31.9
Current and Deferred Income Tax Assets	$ 28.5	$ 41.4