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INCOME TAXES - Schedule of Components of Deferred Tax Liabilities and Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Deferred tax assets:    
Employment costs $ 22.0 $ 21.4
Environmental accruals 35.5 38.5
Net operating loss carryforwards 60.8 66.0
Operating leases 9.5 7.8
Research and development 53.0 45.8
Capitalized and carryforward interest 78.5 48.7
Financial Derivatives 4.5 48.3
Other 32.7 52.2
Gross deferred tax assets 296.5 328.7
Valuation allowances (30.3) (39.6)
Total deferred tax assets, net of valuation allowances 266.2 289.1
Deferred tax liabilities:    
Property, plant and equipment (100.4) (101.3)
Goodwill and intangibles (318.5) (351.2)
Operating leases (9.7) (7.6)
Other (16.7) (18.3)
Total deferred tax liabilities (445.3) (478.4)
Net deferred tax liabilities (179.1) (189.3)
Consolidated Balance Sheets:    
Non-current deferred income tax assets 81.3 92.3
Non-current deferred income tax liabilities $ (260.4) $ (281.6)