Accumulated Other Comprehensive Income (Loss) - Schedule of Reclassifications Out of Accumulated Other Comprehensive Income (Loss) Included in Computation of Net Periodic Pension and Postretirement Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Prior Service Costs
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	$ 0.1	$ 0.2
Actuarial Losses
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(0.6)	0.3
Employee Pension and Postretirement Benefits, Net of Tax
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(0.5)	0.5
Tax expense (benefit)	0.1	(0.1)
Net of tax	$ (0.4)	$ 0.4