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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Income Tax Disclosure [Abstract]      
Indefinite reinvestment of non-US earnings $ 6.3 $ 6.3  
Liability for uncertain tax positions including interest and related charges 26.9   $ 26.9
Accrued income tax interest and related charges 1.7   1.8
Unrecognized tax benefits that would impact effective tax rate $ 25.5   $ 25.3