Accumulated Other Comprehensive Income (Loss) - Schedule of Reclassifications Out of Accumulated Other Comprehensive Income (Loss) Included in Computation of Net Periodic Pension and Post-employment Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Prior service cost	$ 0.1	$ 0.0	$ 0.2	$ 0.3
Actuarial gains	(0.6)	(0.6)	(1.9)	(1.9)
Total before tax	(0.5)	(0.6)	(1.7)	(1.6)
Tax expense	0.1	0.2	0.4	0.4
Net of tax	$ (0.4)	$ (0.4)	$ (1.3)	$ (1.2)