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Commitments (Details)
t in Millions, lb in Millions
 12 Months Ended
Dec. 31, 2021
$ / oz
oz
t
Dec. 31, 2021
oz
Dec. 31, 2021
$ / oz
Dec. 31, 2021
lb
Dec. 31, 2021
USD ($)
Dec. 31, 2021
$ / shares
Jun. 01, 2021
USD ($)
Antamina              
Commitments              
Attributable payable production of gold to be purchased (as a percent) 0.00%            
Attributable payable production of silver to be purchased (as a percent) 22.50%            
Attributable payable production of platinum group metals to be purchased (as a percent) 0.00%            
Payment for each ounce of silver (as a percent) 5.00%            
Term of agreement 40 years            
Fixed silver payability (as a percent) 90.00%            
Percentage of reduction in spot price after maximum ounces of silver have been delivered under the stream agreement 15.00%            
Maximum ounces of silver on which on-going price of spot price is payable   86,000,000          
Purchase price per ounce of silver as a percent of average or spot price upon initial delivery 5.00%            
Antapaccay              
Commitments              
Attributable payable production of platinum group metals to be purchased (as a percent) 0.00%            
Payment for each ounce of gold (in dollars per ounce) | $ / oz     20        
Payment for each ounce of silver (in dollars per ounce) | $ / oz     20        
Term of agreement 40 years            
Percentage of reduction in spot price after maximum ounces of silver have been delivered under the stream agreement 30.00%            
Maximum ounces of silver on which on-going price of spot price is payable   12,800,000          
Purchase price per ounce of silver as a percent of average or spot price upon initial delivery 20.00%            
Ounces of gold receivable for each 1,000 tonnes of copper   300          
Copper for 300 ounces of gold   1,000          
Quantity of delivered gold ounces before payable production to be purchased decreases to next threshold from initial threshold   630,000          
Percentage of gold receivable after initial threshold is achieved 30.00%            
Ounces of silver receivable for each 1,l000 tonnes of copper   4,700          
Copper for 4,700 ounces of silver   1,000          
Maximum ounces of silver receivable   10,000,000.0          
Percentage of spot price of gold on which on-going price is paid 20.00%            
Maximum ounces of gold on which on-going price of spot price is payable   750,000          
Percentage of spot price of gold on which on-going price is paid after maximum ounces have been delivered 30.00%            
Percentage of spot price of silver on which on-going price is paid after maximum ounces have been delivered 30.00%            
Candelaria              
Commitments              
Attributable payable production of gold to be purchased (as a percent) 68.00%            
Attributable payable production of silver to be purchased (as a percent) 68.00%            
Attributable payable production of platinum group metals to be purchased (as a percent) 0.00%            
Payment for each ounce of gold (in dollars per ounce) | $ / oz     400        
Payment for each ounce of silver (in dollars per ounce) | $ / oz     4.00        
Term of agreement 40 years            
Percentage of reduction in spot price after maximum ounces of silver have been delivered under the stream agreement 40.00%            
Maximum ounces of silver on which on-going price of spot price is payable   12,000,000.0          
Maximum ounces of gold on which on-going price of spot price is payable   720,000          
Cobre Panama Fixed Payment Stream              
Commitments              
Attributable payable production of platinum group metals to be purchased (as a percent) 0.00%            
Payment for each ounce of gold (in dollars per ounce) | $ / oz     418        
Payment for each ounce of silver (in dollars per ounce) | $ / oz     6.27        
Term of agreement 40 years            
Percentage of reduction in spot price after maximum ounces of silver have been delivered under the stream agreement 62.10%            
Percentage of reduction in spot price after maximum ounces of gold have been delivered under the stream agreement 63.40%            
Maximum ounces of silver on which on-going price of spot price is payable   21,510,000          
Maximum ounces of silver on which on-going price of spot price is payable   9,842,000          
Quantity of delivered gold ounces before payable production to be purchased decreases to next threshold from initial threshold   808,000          
Purchase price per ounce of gold per ounce upon delivery initial post inflation adjustment | $         418.27    
The mill through put number of consecutive days of commensurate 30 days            
The annual capacity of tonnes per annum reached by period end. | t 58            
Annual rate of return on upfront payments until the mill throughput is achieved 5.00%            
The reduction of applicable fixed gold price per ounce (in dollar per ounce) | $ / oz 100            
Quantity of delivered gold ounces before purchase decreases to next threshold from initial threshold 1,341,000            
Purchase price per ounce of silver per ounce upon delivery initial post inflation adjustment | $ / shares           $ 6.27  
Percentage of spot price of gold on which on-going price is paid after maximum ounces have been delivered 50.00%            
Percentage of spot price of silver on which on-going price is paid after maximum ounces have been delivered 50.00%            
Ounces of gold receivable per every 1 million pounds of copper produced   120   1      
Copper for stated ounces of gold | lb       1      
Copper pounds per gold ounces to purchase threshold 2   81          
Maximum ounces of gold receivable for second threshold   1,716,188          
Ounces of silver receivable per every 1 million pounds of copper produced | lb       1      
Copper for stated ounces of silver | lb       1      
Number of payable Silver ounces to be purchased per quantity of pounds of copper   1,776          
Ounces of silver receivable per every 1 million pounds of copper produced   1,376          
Ounces Of Silver Delivered Under Threshold 2 Before Committed Quantities Reduces   29,731,000          
Cobre Panama Floating Payment Stream              
Commitments              
Attributable payable production of platinum group metals to be purchased (as a percent) 0.00%            
Payment for each ounce of gold (in dollars per ounce) | $ / oz     20        
Payment for each ounce of silver (in dollars per ounce) | $ / oz     20        
Term of agreement 40 years            
Percentage of reduction in spot price after maximum ounces of silver have been delivered under the stream agreement 15.53%            
Percentage of reduction in spot price after maximum ounces of gold have been delivered under the stream agreement 15.85%            
Maximum ounces of silver on which on-going price of spot price is payable   9,618,000          
Maximum ounces of silver on which on-going price of spot price is payable   2,460,500          
Quantity of delivered gold ounces before payable production to be purchased decreases to next threshold from initial threshold   202,000          
The mill through put number of consecutive days of commensurate 30 days            
The annual capacity of tonnes per annum reached by period end. | t 58            
Annual rate of return on upfront payments until the mill throughput is achieved 5.00%            
The reduction of applicable fixed gold price per ounce (in dollar per ounce) | $ / oz 100            
Maximum ounces of gold on which on-going price of spot price is payable   604,000          
Percentage of spot price of gold on which on-going price is paid after maximum ounces have been delivered 50.00%            
Percentage of spot price of silver on which on-going price is paid after maximum ounces have been delivered 50.00%            
Ounces of gold receivable per every 1 million pounds of copper produced   30          
Copper for stated ounces of gold | lb       1      
Copper pounds per gold ounces to purchase threshold 2   20.25          
Ounces of gold receivable per every 1 million pounds of copper produced | lb       1      
Maximum ounces of gold receivable for second threshold   429,047          
Ounces of silver receivable per every 1 million pounds of copper produced   344          
Copper for stated ounces of silver | lb       1      
Number of payable Silver ounces to be purchased per quantity of pounds of copper   444          
Ounces of silver receivable per every 1 million pounds of copper produced | lb       1      
Ounces Of Silver Delivered Under Threshold 2 Before Committed Quantities Reduces   7,432,750          
Condestable              
Commitments              
Attributable payable production of platinum group metals to be purchased (as a percent) 0.00%            
Payment for each ounce of gold (as a percent) 20.00%            
Payment for each ounce of gold (in dollars per ounce) | $ / oz     20        
Payment for each ounce of silver (as a percent) 20.00%            
Payment for each ounce of silver (in dollars per ounce) | $ / oz     20        
Term of agreement 40 years            
Percentage of gold receivable after initial threshold is achieved 25.00%            
Maximum ounces of silver receivable   291,000          
Maximum ounces of gold receivable for first threshold   8,760          
Deliveries of ounces of refined gold threshold 87,600            
Refined gold delivery as percentage of production from stream area 63.00%            
Deliveries of refined silver threshold ounces 2,910,000            
Refined silver delivery as percentage of production from stream area 63.00%            
Percentage of silver delivered after second phase 25.00%            
Karma              
Commitments              
Attributable payable production of gold to be purchased (as a percent) 4.875%            
Attributable payable production of silver to be purchased (as a percent) 0.00%            
Attributable payable production of platinum group metals to be purchased (as a percent) 0.00%            
Payment for each ounce of gold (in dollars per ounce) | $ / oz     20        
Term of agreement 40 years            
Percentage of gold receivable after initial threshold is achieved 4.875%            
Percentage of spot price of gold on which on-going price is paid 20.00%            
Maximum ounces of gold receivable (per annum)   15,000          
Aggregate gold ounces delivered to increase the upfront deposit   5,625          
Gold ounces delivered to increase the upfront deposit (per quarter)   703          
Guadalupe-Palmarejo              
Commitments              
Attributable payable production of gold to be purchased (as a percent) 50.00%            
Attributable payable production of silver to be purchased (as a percent) 0.00%            
Attributable payable production of platinum group metals to be purchased (as a percent) 0.00%            
Payment for each ounce of gold (in dollars per ounce) | $ / oz     800        
Term of agreement 40 years            
Sabodala              
Commitments              
Attributable payable production of silver to be purchased (as a percent) 0.00%            
Attributable payable production of platinum group metals to be purchased (as a percent) 0.00%            
Payment for each ounce of gold (in dollars per ounce) | $ / oz     20        
Term of agreement 40 years            
Maximum ounces of gold threshold   105,750          
Percentage of gold receivable after initial threshold is achieved 6.00%            
Percentage of spot price of gold on which on-going price is paid 20.00%            
Maximum ounces of gold receivable (per month)   783.33          
MWS              
Commitments              
Attributable payable production of gold to be purchased (as a percent) 25.00%            
Attributable payable production of silver to be purchased (as a percent) 0.00%            
Attributable payable production of platinum group metals to be purchased (as a percent) 0.00%            
Payment for each ounce of gold (in dollars per ounce) | $ / oz     400        
Term of agreement 40 years            
Ounces of gold capped under agreement   312,500          
Cooke 4              
Commitments              
Attributable payable production of gold to be purchased (as a percent) 7.00%            
Attributable payable production of silver to be purchased (as a percent) 0.00%            
Attributable payable production of platinum group metals to be purchased (as a percent) 0.00%            
Payment for each ounce of gold (in dollars per ounce) | $ / oz     400        
Term of agreement 40 years            
Sudbury              
Commitments              
Attributable payable production of gold to be purchased (as a percent) 50.00%            
Attributable payable production of silver to be purchased (as a percent) 0.00%            
Attributable payable production of platinum group metals to be purchased (as a percent) 50.00%            
Payment for each ounce of gold (in dollars per ounce) | $ / oz     400        
Payment for each ounce of PGM (in dollars per ounce) | $ / oz     400        
Term of agreement 40 years            
Percentage of purchase commitment 50.00%            
Sudbury | Gold spot price is greater than $800 per ounce but less than $1,333 per ounce              
Commitments              
Payment for each ounce of gold (in dollars per ounce) | $ / oz     800        
Sudbury | Gold spot price is greater than $1,333 per ounce but less than $2,000 per ounce              
Commitments              
Payment for each ounce of gold (as a percent) 60.00%            
Sudbury | Gold spot price is greater than $2,000              
Commitments              
Payment for each ounce of gold (in dollars per ounce) | $ / oz     1,200        
Rosemont/Copper World royalty interest              
Commitments              
Capital commitments amount | $         $ 12,500,000    
Rio Baker Salares Norte              
Commitments              
Capital commitments amount | $         $ 8,000,000.0    
Bottom | Sudbury | Gold spot price is greater than $800 per ounce but less than $1,333 per ounce              
Commitments              
Gold spot price per oz minimum threshold (in dollar per ounce) | $             800
Bottom | Sudbury | Gold spot price is greater than $1,333 per ounce but less than $2,000 per ounce              
Commitments              
Gold spot price per oz minimum threshold (in dollar per ounce) | $             1,333
Bottom | Sudbury | Gold spot price is greater than $2,000              
Commitments              
Gold spot price per oz minimum threshold (in dollar per ounce) | $             2,000
Top | Sudbury | Gold spot price is greater than $800 per ounce but less than $1,333 per ounce              
Commitments              
Gold spot price per oz maximum threshold (in dollar per ounce) | $             1,333
Top | Sudbury | Gold spot price is greater than $1,333 per ounce but less than $2,000 per ounce              
Commitments              
Gold spot price per oz maximum threshold (in dollar per ounce) | $             2,000