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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Income Tax Disclosure [Abstract]        
Effective income tax rate reconciliation, percent     21.70%  
Income taxes paid $ 21.4 $ 20.8 $ 21.6 $ 63.7