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Provisions - Additional Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of other provisions [line items]      
Provisions $ 474.0 $ 303.2  
Closure and decommissioning      
Disclosure of other provisions [line items]      
Provisions 447.1 296.2 $ 242.9
Accretion charged to earnings as finance expense 34.2 14.8  
Reclamation expenditures 27.3 4.2  
Litigation      
Disclosure of other provisions [line items]      
Provisions, including acquisitions and disposals 26.9    
Provisions $ 10.5 $ 7.0  
Bottom of range | Closure and decommissioning      
Disclosure of other provisions [line items]      
Inflation rate (percent) 1.00% 2.00%  
Discount rate (percent) 3.00% 3.00%  
Top of range | Closure and decommissioning      
Disclosure of other provisions [line items]      
Inflation rate (percent) 5.00% 6.00%  
Discount rate (percent) 11.00% 11.00%