Strategic Transformation and Restructuring, Impairment and Other Asset Charges, net - Restructuring and the Net Gain on Sale of Property and Equipment (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Restructuring charges:
Costs associated with leadership change and overhead restructuring	$ 0.3	$ 0.0		$ 7.3	$ 0.0
Total restructuring related charges	0.4	0.4		7.5	1.4
Asset impairment charges:
Other impairment charges	0.8	3.0		0.8	3.0
Total asset impairment charges	0.8	3.0		0.8	3.0
Gain on sale of property and equipment, net:
Gain on disposition of property and equipment, net	(0.1)	0.0		(3.5)	0.0
Total gain on sale of property and equipment, net	(0.1)	0.0		(3.5)	0.0
Restructuring, impairment and other asset charges, net	1.1	3.4		4.8	4.4
Facility Closing | Enid Exit Plan
Restructuring charges:
Business exit costs	0.1	0.4		0.2	0.6
Facility Closing | Tacoma Exit Plan
Restructuring charges:
Business exit costs	$ 0.0	$ 0.0	$ 0.8	$ 0.0	$ 0.8