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Income Taxes - Narrative (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 32.80% 27.80% 18.70% 25.80%
Federal statutory tax rate     21.00%  
Income taxes paid     $ 8.0 $ 16.8