Income Taxes - Schedule of Income Taxes and Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income before income taxes:
U.S.	$ 284.1	$ 222.9	$ 155.5
International	95.6	110.6	167.7
Income before income taxes, and equity in earnings of affiliated companies	379.7	333.5	323.2
Current:
U.S.	49.1	18.3	18.9
International	11.4	14.9	20.3
Current provision for income taxes	60.5	33.2	39.2
Deferred:
U.S.	3.8	26.8	(1.9)
International	12.5	2.5	5.2
Deferred provision for income taxes	16.3	29.3	3.3
Total provision for income taxes	$ 76.8	$ 62.5	$ 42.5