XML 130 R79.htm IDEA: XBRL DOCUMENT v3.24.0.1
Reclamation and closure cost obligations - Narrative (Details) - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
RECLAMATION AND CLOSURE COST OBLIGATIONS    
Discount rate applied to cash flow projections 3.00% 3.30%
Description of inflation rates applied to cash flow projections 1.60% 2.10%
Letters Of Credit    
RECLAMATION AND CLOSURE COST OBLIGATIONS    
Exposure to credit risk on loan commitments and financial guarantee contracts $ 26.7 $ 27.5
Surety Bonds    
RECLAMATION AND CLOSURE COST OBLIGATIONS    
Exposure to credit risk on loan commitments and financial guarantee contracts $ 146.2 $ 134.2