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Discontinued Operations (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Jun. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Discontinued operations, net of income taxes $ (20.4)   $ (0.9) $ (4.0) $ (16.2)
Adjustment for workers’ compensation, product liability, other postretirement benefits and other, net of income tax benefit (expense) (8.9)   2.3 (9.2) 0.3
Provision for environmental liabilities and expenses, net of recoveries, net of income tax benefit (expense) 0.7   0.8 2.1 2.0
Provision for legal reserves and expenses, net of recoveries, net of income tax benefit 2.3   0.2 (3.0) 2.4
Decrease in outstanding cases   $ 34.5      
Discontinued operations gain on insurance settlement         18.0
Adjustment for workers’ compensation, product liability, other postretirement benefits and other, net of income tax benefit (expense) of $(8.9) and $(9.2) for the three and nine months ended September 30, 2025, respectively, and $2.3 and $0.3 for the three and nine months ended September 30, 2024, respectively          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Discontinued operations, net of income taxes (8.7)   2.9 (7.2) 0.4
Provision for environmental liabilities and expenses, net of recoveries, net of income tax benefit (expense) of $0.7 and $2.1 for the three and nine months ended September 30, 2025, respectively, and $0.8 and $2.0 for the three and nine months ended September 30, 2024, respectively          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Discontinued operations, net of income taxes (2.9)   (3.1) (8.1) (7.5)
Provision for legal reserves and expenses, net of recoveries, net of income tax benefit (expense) of [$—] and [$—] for the three and nine months ended September 30, 2025, respectively, and $0.2 and $2.4 for the three and six months ended June 30, 2024, respectively.          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Discontinued operations, net of income taxes $ (8.8)   $ (0.7) $ 11.3 $ (9.1)