Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Income Tax Contingency [Line Items]
Unrecognized tax benefit more likely than not percentage threshold	50.00%
Unrecognized tax benefits	$ 91.2
Unrecognized tax benefits that would impact effective tax rate	67.1
Interest expense or penalties, uncertain tax positions	0.0
Accrued interest, uncertain tax positions	$ 0.0	$ 0.0
Internal Revenue Service (IRS) [Member]
Income Tax Contingency [Line Items]
Earliest year subject to examination	2000