CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 7.8	$ (3.5)
Foreign currency translation adjustment	(9.2)	9.7
Pension and other postretirement benefits:
Amortization of loss, net of tax (Note 2)	0.1	0.0
Other comprehensive income (loss)	(9.1)	9.7
Comprehensive income (loss)	$ (1.3)	$ 6.2