Operations by Industry Segment and Geographic Area - Schedule of Segment Information and Related Reconciliations (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Reconciliation of Reportable Segment Operating Adjusted EBITDA to "(Loss) income before income taxes"
Reportable Segment Operating Adjusted EBITDA	$ 39.3	$ 30.1	$ 133.8	$ 98.4
Restructuring and other related charges	0.2	(8.4)	0.3	(8.3)
Goodwill impairment	0.0	0.0	0.0	(20.2)	$ (20.2)
Gain on sale of property and equipment, net	0.0	0.0	0.1	1.1
Net income (loss) attributable to noncontrolling interest	0.0	0.0	(0.1)	0.1
(Loss) income before income taxes	(5.1)	(8.5)	37.2	(17.5)
Operating Segments
Reconciliation of Reportable Segment Operating Adjusted EBITDA to "(Loss) income before income taxes"
Reportable Segment Operating Adjusted EBITDA	39.3	30.1	133.8	98.4
Transformation program	(5.2)	(8.4)	(15.5)	(25.8)
Restructuring and other related charges	0.2	(8.4)	0.2	(9.4)
Goodwill impairment	0.0	0.0	0.0	(20.2)
Gain on sale of property and equipment, net	0.0	0.0	0.1	1.1
Transaction costs	(8.3)	0.0	(10.5)	0.0
Interest expense, net	(6.6)	(2.1)	(8.5)	(6.9)
Depreciation and amortization	(12.3)	(7.0)	(24.7)	(20.1)
Net income (loss) attributable to noncontrolling interest	0.0	0.0	0.1	(0.1)
Corporate and Other
Reconciliation of Reportable Segment Operating Adjusted EBITDA to "(Loss) income before income taxes"
Reportable Segment Operating Adjusted EBITDA	$ (12.2)	$ (12.7)	$ (37.8)	$ (34.5)