Restructuring - Summary of Activity Relating to Restructuring Plan Liabilities (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	[1]	Mar. 31, 2025
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 1.8	$ 0.1
2025 Plan
Restructuring Cost and Reserve [Line Items]
Beginning balance	0.0
Restructuring costs	1.8
Costs paid or otherwise settled	(1.3)
Ending balance	0.5			$ 0.5
2024 Plan
Restructuring Cost and Reserve [Line Items]
Beginning balance	4.7
Restructuring costs	0.0			7.5
Costs paid or otherwise settled	(0.1)
Ending balance	$ 4.6			$ 4.6

[1] Adjusted to reflect the retrospective change in inventory valuation methodology from LIFO to WAC. See Note 14 for further discussion.