Segment Information - Reconciliation of Total Segment Profits to Consolidated Totals (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reconciliation [Abstract]
Segment Operating Adjusted EBITDA	$ (3.9)	$ 4.1	$ 8.3	$ 8.5	$ 0.2	$ 16.8
Total asset impairment charges	3.0		0.2		3.0	0.2
Gain on sale of property and equipment, net	0.0		0.2		0.0	0.3
Income tax (benefit) provision	(0.8)		2.1		0.1	2.9
Net (loss) income attributable to controlling interest	(3.9)		8.3		0.2	16.8
Operating Segments
Segment Reconciliation [Abstract]
Segment Operating Adjusted EBITDA	13.1		20.5		31.9	41.4
Transformation program	(6.4)		(2.1)		(11.7)	(5.3)
Facility closures and reduction in force	(0.4)		(0.8)		(1.4)	(1.6)
Total asset impairment charges	(3.0)		(0.2)		(3.0)	(0.2)
Gain on sale of property and equipment, net	0.0		0.2		0.0	0.3
Transaction costs	(0.8)		0.0		(1.4)	0.0
Interest expense, net	(0.4)		0.0		(0.6)	(0.1)
Depreciation and amortization	(6.9)		(7.5)		(13.6)	(15.1)
Income tax (benefit) provision	0.8		(2.1)		(0.1)	(2.9)
Net (loss) income attributable to controlling interest	13.1		20.5		31.9	41.4
Intersegment Eliminations
Segment Reconciliation [Abstract]
Recapture of intercompany profit	$ 0.1		$ 0.3		$ 0.1	$ 0.3