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Income Taxes - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Income Tax Disclosure [Abstract]          
Effective tax rate, percentage 14.00% 12.00% 163.00% (11.00%)  
Earnings of foreign entities $ 16.6 $ 27.3 $ 21.5 $ 32.7  
Decrease in valuation allowance, non-cash benefit to income tax expense     18.5    
Unrecognized tax benefit for uncertain tax positions 24.4   24.4   $ 28.4
Liabilities for interest and penalties, excluded from unrecognized tax benefits for uncertain tax positions 1.2   1.2   $ 1.2
Decrease in unrecognized tax benefits due to the settlement of various audits and expiration of statutes of limitations $ 0.3   $ 0.3