Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (123.6)	$ 11.0	$ (19.1)
Other comprehensive income (loss), net of income tax:
Unrealized gains (losses) on derivatives, net of income tax provision of $0.0, $0.0 and $0.0, respectively	5.4	0.0	0.0
Employee pension and postretirement benefit income (expense), net of income tax (provision) benefit of $x, $(0.4) and $0.6, respectively	17.0	15.6	(8.0)
Foreign currency translation adjustments, net of income tax (provision) benefit of $x, $5.1 and $(4.6), respectively	(27.9)	(20.5)	31.5
Total other comprehensive income (loss), net of income tax	(5.5)	(4.9)	23.5
Comprehensive income (loss)	$ (129.1)	$ 6.1	$ 4.4