XML 70 R52.htm IDEA: XBRL DOCUMENT v3.22.4
Mineral Property, Plant and Equipment (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment $ 3,108.5  
Impairment charge (note 14) 38.2 $ 224.3
Mineral property, plant and equipment 3,173.8 3,108.5
Cost    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment 4,865.4 4,466.6
Additions 329.8 359.3
Transfer of La Yaqui Grande Assets 0.0  
Revisions 6.7 29.8
Disposals (1.7) (6.0)
Sale of property, plant and equipment (90.0)  
Mineral property, plant and equipment 5,110.2 4,865.4
Accumulated amortization and impairment charges    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment (1,756.9) (1,365.3)
Amortization (181.1) (177.3)
Disposals 1.2 4.5
Impairment charge (note 14) 38.2 218.8
Mineral property, plant and equipment (1,936.4) (1,756.9)
Right of Use Assets    
Reconciliation of changes in property, plant and equipment [abstract]    
Amortization (38.6)  
Plant and equipment    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment 911.5  
Mineral property, plant and equipment 980.5 911.5
Plant and equipment | Cost    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment 1,629.3 1,530.0
Additions 40.2 105.3
Transfer of La Yaqui Grande Assets 121.0  
Revisions 0.0 0.0
Disposals (1.7) (6.0)
Sale of property, plant and equipment (0.4)  
Mineral property, plant and equipment 1,788.4 1,629.3
Plant and equipment | Accumulated amortization and impairment charges    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment (717.8) (641.3)
Amortization (91.7) (80.7)
Disposals 1.2 4.5
Impairment charge (note 14) 0.0 0.3
Mineral property, plant and equipment (807.9) (717.8)
Plant and equipment | Right of Use Assets    
Reconciliation of changes in property, plant and equipment [abstract]    
Amortization (0.4)  
Depletable    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment 1,819.4  
Mineral property, plant and equipment 1,899.5 1,819.4
Depletable | Cost    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment 2,631.2 2,483.4
Additions 143.8 113.7
Transfer of La Yaqui Grande Assets 19.0  
Revisions 6.7 18.4
Disposals 0.0 0.0
Sale of property, plant and equipment 0.0  
Mineral property, plant and equipment 2,800.7 2,631.2
Depletable | Accumulated amortization and impairment charges    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment (811.8) (715.2)
Amortization (89.4) (96.6)
Disposals 0.0 0.0
Impairment charge (note 14) 0.0 0.0
Mineral property, plant and equipment (901.2) (811.8)
Depletable | Right of Use Assets    
Reconciliation of changes in property, plant and equipment [abstract]    
Amortization 0.0  
Non-depletable    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment 143.2  
Mineral property, plant and equipment 126.9 143.2
Non-depletable | Cost    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment 285.6 157.7
Additions 123.7 116.5
Transfer of La Yaqui Grande Assets (140.0)  
Revisions 0.0 11.4
Disposals 0.0 0.0
Sale of property, plant and equipment 0.0  
Mineral property, plant and equipment 269.3 285.6
Non-depletable | Accumulated amortization and impairment charges    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment (142.4) 0.0
Amortization 0.0 0.0
Disposals 0.0 0.0
Impairment charge (note 14) 0.0 142.4
Mineral property, plant and equipment (142.4) (142.4)
Non-depletable | Right of Use Assets    
Reconciliation of changes in property, plant and equipment [abstract]    
Amortization 0.0  
Exploration and evaluation    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment 234.4  
Mineral property, plant and equipment 166.9 234.4
Exploration and evaluation | Cost    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment 319.3 295.5
Additions 22.1 23.8
Transfer of La Yaqui Grande Assets 0.0  
Revisions 0.0 0.0
Disposals 0.0 0.0
Sale of property, plant and equipment (89.6)  
Mineral property, plant and equipment 251.8 319.3
Exploration and evaluation | Accumulated amortization and impairment charges    
Reconciliation of changes in property, plant and equipment [abstract]    
Property, plant and equipment (84.9) (8.8)
Amortization 0.0 0.0
Disposals 0.0 0.0
Impairment charge (note 14) 38.2 76.1
Mineral property, plant and equipment (84.9) (84.9)
Exploration and evaluation | Right of Use Assets    
Reconciliation of changes in property, plant and equipment [abstract]    
Amortization $ (38.2)  
Island Gold | Cost    
Reconciliation of changes in property, plant and equipment [abstract]    
Additions   15.7
Island Gold | Plant and equipment | Cost    
Reconciliation of changes in property, plant and equipment [abstract]    
Additions   0.0
Island Gold | Depletable | Cost    
Reconciliation of changes in property, plant and equipment [abstract]    
Additions   15.7
Island Gold | Non-depletable | Cost    
Reconciliation of changes in property, plant and equipment [abstract]    
Additions   0.0
Island Gold | Exploration and evaluation | Cost    
Reconciliation of changes in property, plant and equipment [abstract]    
Additions   $ 0.0