Segment Information - Reconciliation of Total Segment Profits to Consolidated Totals (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reconciliation [Abstract]
Total asset impairment charges	$ (0.4)	$ 0.0	$ (3.4)	$ (0.2)
Gain on sale of property and equipment, net	0.4	0.2	0.4	0.5
Income tax (provision) benefit	(0.7)	2.9	(0.8)	0.0
Net loss attributable to noncontrolling interest	0.2	0.0	0.2	0.0
Net income attributable to controlling interest	0.7	9.0	0.9	25.8
Operating Segments
Segment Reconciliation [Abstract]
Segment Operating Adjusted EBITDA	16.5	16.1	48.4	57.5
Transformation program	(7.0)	(2.4)	(18.7)	(7.7)
Facility closures and reduction in force	(0.1)	(0.5)	(1.5)	(2.1)
Total asset impairment charges	(0.4)	0.0	(3.4)	(0.2)
Gain on sale of property and equipment, net	0.4	0.2	0.4	0.5
Transaction costs	(0.5)	0.0	(1.9)	0.0
Interest expense, net	(0.3)	(0.1)	(0.9)	(0.2)
Depreciation and amortization	(7.3)	(7.5)	(20.9)	(22.6)
Income tax (provision) benefit	(0.7)	2.9	(0.8)	0.0
Net loss attributable to noncontrolling interest	0.2	0.0
Intersegment Eliminations
Segment Reconciliation [Abstract]
(Elimination) recapture of intercompany profit	$ (0.1)	$ 0.3	$ 0.0	$ 0.6