Segment Information - Reconciliation of Total Segment Profits to Consolidated Totals (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reconciliation [Abstract]
Total asset impairment charges	$ 0.0	$ (0.4)	$ (0.8)	$ (3.4)
(Loss) gain on sale of property and equipment, net	(0.4)	0.4	3.1	0.4
Income tax benefit (provision)	0.6	(0.7)	(6.5)	(0.8)
Net (income) loss attributable to noncontrolling interest	(0.1)	0.2	(0.2)	0.2
Net (loss) income attributable to controlling interest	(6.6)	0.7	18.6	0.9
Operating Segments
Segment Reconciliation [Abstract]
Segment Operating Adjusted EBITDA	10.4	16.5	78.9	48.4
Transformation program	(7.7)	(7.0)	(22.5)	(18.7)
Restructuring and other related charges	(0.1)	(0.1)	(7.6)	(1.5)
Total asset impairment charges	0.0	(0.4)	(0.8)	(3.4)
(Loss) gain on sale of property and equipment, net	(0.4)	0.4	3.1	0.4
Transaction costs	0.0	(0.5)	0.0	(1.9)
Interest expense, net	(1.9)	(0.3)	(4.9)	(0.9)
Depreciation and amortization	(7.1)	(7.3)	(19.6)	(20.9)
Income tax benefit (provision)	0.6	(0.7)	(6.5)	(0.8)
Net (income) loss attributable to noncontrolling interest	(0.1)	0.2	(0.2)	0.2
Intersegment Eliminations
Segment Reconciliation [Abstract]
Elimination of intercompany profit	$ (0.3)	$ (0.1)	$ (1.3)	$ 0.0