Business Combinations, Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Millions		12 Months Ended
	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Beginning balance		$ 57.7	$ 37.2
Warrick acquisition	$ 20.5		20.5
Warrick impairment		(20.5)
Ending balance		37.2	57.7
Accumulated impairment loss		(18.4)	(18.4)
Net carrying value		$ 18.8	$ 39.3