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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2019
Mar. 31, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Income Tax Disclosure [Abstract]          
Income tax benefit (expense) $ 1.6   $ (2.3) $ 4.4 $ (1.4)
Foreign income tax expense (benefit)       $ 4.4 $ 1.4
Tax cuts and jobs act, reclassification from aoci to retained earnings, tax effect   $ 1.3