Quarterly report [Sections 13 or 15(d)]

Business Segments - Summary of Reconciles Depreciation, Depletion and Amortization and Investment in Property, Plant, and Equipment for Reportable Segments to Consolidated Amounts (Details)

v3.26.3
Business Segments - Summary of Reconciles Depreciation, Depletion and Amortization and Investment in Property, Plant, and Equipment for Reportable Segments to Consolidated Amounts (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting [Line Items]        
Depreciation, depletion and amortization $ 96.7 $ 103.0 $ 290.8 $ 313.7
Investment in property, plant, and equipment 39.7 38.0 112.1 133.3
Reportable Segments        
Segment Reporting [Line Items]        
Depreciation, depletion and amortization 97.3 101.1 292.5 314.2
Investment in property, plant, and equipment 42.0 36.2 119.7 140.7
Reportable Segments | Other        
Segment Reporting [Line Items]        
Depreciation, depletion and amortization 0.8 1.1 2.4 1.1
Investment in property, plant, and equipment       3.0
Eliminations        
Segment Reporting [Line Items]        
Depreciation, depletion and amortization (1.4)   (4.1) (1.6)
Investment in property, plant, and equipment $ (2.3)   $ (7.6) $ (10.4)
Eliminations        
Segment Reporting [Line Items]        
Depreciation, depletion and amortization   0.8    
Investment in property, plant, and equipment   $ 1.8