Restructuring Charges - Activity and Reserve Balance for Restructuring Charges by Segment (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	$ 9.8	$ 15.0
Restructuring charges		9.9
Restructuring charges	5.7
Currency translation		0.0
Cash payments	(11.1)	(15.1)
Restructuring reserve, ending balance	4.4	9.8
Corporate
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0.0	0.5
Restructuring charges		2.1
Restructuring charges	1.2
Currency translation		0.0
Cash payments	(1.2)	(2.6)
Restructuring reserve, ending balance	0.0	0.0
Americas | Reportable Segments
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	0.8	1.7
Restructuring charges		3.1
Restructuring charges	1.3
Currency translation		(0.1)
Cash payments	(1.9)	(3.9)
Restructuring reserve, ending balance	0.2	0.8
International | Reportable Segments
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	9.0	12.8
Restructuring charges		4.7
Restructuring charges	3.2
Currency translation		0.1
Cash payments	(8.0)	(8.6)
Restructuring reserve, ending balance	$ 4.2	$ 9.0