Equity - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Beginning balance		$ 28.2	$ 19.5
Remeasurement of benefit obligations		8.1	10.5	$ 25.1
Reclassifications, net		(6.3)	(4.4)
Foreign currency gain (loss)		(6.5)	2.6	(6.2)
Accumulated foreign currency translation loss divested of in discontinued operations		11.5
Ending balance		35.0	28.2	19.5
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Beginning balance		33.2	27.1
Remeasurement of benefit obligations		8.1	10.5
Reclassifications, net	[1]	(6.3)	(4.4)
Foreign currency gain (loss)		0.0	0.0
Accumulated foreign currency translation loss divested of in discontinued operations		0.0
Ending balance		35.0	33.2	27.1
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Beginning balance		(5.0)	(7.6)
Remeasurement of benefit obligations		0.0	0.0
Reclassifications, net		0.0	0.0
Foreign currency gain (loss)		(6.5)	2.6
Accumulated foreign currency translation loss divested of in discontinued operations	[2]	11.5
Ending balance		$ 0.0	$ (5.0)	$ (7.6)

[1] These reclassifications are included in the other components of net periodic pension and postretirement benefit plans expense and represent amortization of prior service benefit and actuarial gain, net of tax. The other components of net periodic pension and postretirement benefit plans expense are recorded in "Other components of pension and postretirement benefit plans expense (benefit)" on the Consolidated Statements of Operations. See Note 12 for further disclosures.

[2] The accumulated foreign currency translation loss represents the cumulative translation adjustment included in accumulated other comprehensive income that was adjusted as a result of the sale of the Disposal Group. See Note 3 for further disclosures.