Change in Accounting Principle - Schedule of Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024		Mar. 31, 2024
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Receivables, other	$ 42.5	$ 22.2	[1]	$ 11.3
Inventories	572.4	601.9	[1],[2]	536.4
Deferred tax assets, net	3.3	4.0	[1]	3.1
Other accrued liabilities	66.9	79.3	[1],[2]
Deferred tax liabilities	50.6	44.1	[1]	32.6
Retained (deficit) earnings	90.0	81.3	[1]	71.9
Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Receivables, other		22.0		11.2
Inventories		503.9		471.3
Deferred tax assets, net		7.2		5.4
Other accrued liabilities		79.4
Deferred tax liabilities		24.1		19.5
Retained (deficit) earnings		6.2		22.1
As Computed using LIFO
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Receivables, other	42.3
Inventories	441.2
Deferred tax assets, net	7.6
Other accrued liabilities	67.0
Deferred tax liabilities	23.8
Retained (deficit) earnings	(10.4)
Effect of Change
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Receivables, other	0.2	0.2		0.1
Inventories	131.2	98.0		65.1
Deferred tax assets, net	(4.3)	(3.2)		(2.3)
Other accrued liabilities	(0.1)	(0.1)
Deferred tax liabilities	26.8	20.0		13.1
Retained (deficit) earnings	$ 100.4	$ 75.1		$ 49.8

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

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