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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Mar. 31, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Income Tax Disclosure [Abstract]          
Income tax benefit (expense) $ 1.3   $ (1.7) $ 5.7 $ (3.0)
Foreign income tax expense (benefit)       $ 5.7 $ (3.0)
Tax cuts and jobs act, reclassification from aoci to retained earnings, tax effect   $ 1.3