Goodwill and Other Intangibles - Goodwill by Business Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Beginning balance	$ 605.8	$ 634.0
Foreign currency translation and other	1.4	(28.2)
Opening balance	607.2	605.8
Americas
Goodwill [Roll Forward]
Beginning balance	371.5	396.5
Foreign currency translation and other	(12.3)	(25.0)
Opening balance	359.2	371.5
Asia Pacific
Goodwill [Roll Forward]
Beginning balance	50.3	50.9
Foreign currency translation and other	0.3	(0.6)
Opening balance	50.6	50.3
Europe, Middle East, & Africa
Goodwill [Roll Forward]
Beginning balance	184.0	186.6
Foreign currency translation and other	13.4	(2.6)
Opening balance	$ 197.4	$ 184.0