Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (0.6)	$ 15.9	$ 46.0
Other comprehensive (loss) income:
Foreign currency translation adjustments	(7.7)	(2.1)	(1.8)
Change in unrecognized pension and postretirement benefit costs	0.0	3.1	0.1
Other comprehensive (loss) income	(7.7)	1.0	(1.7)
Comprehensive loss attributable to noncontrolling interest	0.5	0.0	0.0
Comprehensive (loss) income attributable to controlling interest	$ (7.8)	$ 16.9	$ 44.3