Annual report [Section 13 and 15(d), not S-K Item 405]

Supplemental Balance Sheet Information - Summary of Components of Property Plant and Equipment Net (Details)

v3.25.4
Supplemental Balance Sheet Information - Summary of Components of Property Plant and Equipment Net (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Property, Plant and Equipment [Line Items]    
Property plant and equipment, Gross $ 3,046.5 $ 3,073.6
Less: accumulated depreciation, depletion and amortization (1,582.2) (1,312.4)
Construction in progress 35.3 36.7
Property, plant, and equipment, net 1,464.3 1,761.2
Machinery and Equipment    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, Gross 2,441.4 2,455.8
Mining Property and Mine Development    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, Gross 391.2 420.3
Buildings and Leasehold Improvements    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, Gross 151.1 131.0
Land    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, Gross 10.2 12.8
Office Equipment Software and Other    
Property, Plant and Equipment [Line Items]    
Property plant and equipment, Gross $ 17.3 $ 17.0