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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Income Tax Contingency [Line Items]    
Income Tax Expense (Benefit) $ (3.8) $ (1.2)
Gross unrecognized tax benefits 2.5  
Total amount of unrecognized tax benefits, if recognized, would affect the effective tax rate 2.2  
New Accounting Pronouncement, Early Adoption, Effect [Member] | Other Noncurrent Assets [Member]    
Income Tax Contingency [Line Items]    
Income Tax Expense (Benefit) $ 3.1