Income Taxes - Schedule of Current and Deferred Income Tax Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Current Income Tax Liabilities	$ 0.0	$ 7.8
Deferred Income Tax Liabilities	0.0	21.5
Unrecognized Tax Benefits	3.6	7.2
Liabilities for Income Taxes	$ 3.6	$ 36.5