Operating Segments and Related Information - Schedule of Reconciliation of the Consolidated Segment Income from Operations to Consolidated Loss From Operations before Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Reconciliation of the consolidated segment income from operations to consolidated loss from operations before income taxes:
Income from operations	$ 40.0	$ 26.5
Interest expense	(74.5)	(68.2)
Loss from equity investees	(2.3)	(9.4)
Other income, net	3.4	16.7
Loss from operations before income taxes	$ (33.4)	$ (34.4)