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Interest and Other Expenses - Schedule of Interest and Other Expenses (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Other Income and Expenses [Abstract]        
Interest expense $ 10.2 $ 12.6 $ 37.1 $ 36.4
Interest income (1.5) (1.2) (4.1) (3.4)
Foreign exchange loss 3.0 0.1 2.8 0.4
Miscellaneous expenses, net 0.1 0.2 2.6 5.1
Interest and other expenses $ 11.8 $ 11.7 $ 38.4 $ 38.5