Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Unrealized loss on derivatives, net of income tax provision	$ 0.0	$ 0.0	$ 0.0	$ 0.0
Employee pension and postretirement benefit income (expense), net of income tax provision	0.0	0.0	0.0	0.0
Foreign currency translation adjustments, net of income tax benefit	$ 0.0	$ (0.2)	$ 0.9	$ 0.7