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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2019
Income Tax Contingency [Line Items]      
Income tax expense (benefit) $ 3.1 $ 5.1  
Forecast      
Income Tax Contingency [Line Items]      
Effective income tax rate reconciliation, percent     27.00%