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Financial Instruments - Additional Information (Details)
S/ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands
 12 Months Ended
Dec. 31, 2021
USD ($)
buyer
Dec. 31, 2021
MXN ($)
buyer
Dec. 31, 2021
PEN (S/)
buyer
Dec. 31, 2021
CAD ($)
buyer
Dec. 31, 2020
USD ($)
Dec. 31, 2020
MXN ($)
Dec. 31, 2020
PEN (S/)
Dec. 31, 2020
CAD ($)
Aug. 10, 2021
USD ($)
Jun. 30, 2021
Disclosure of detailed information about financial instruments [line items]                    
Trade and other receivables $ 128,150       $ 127,756          
Value contained in precious metal inventory at refineries 526,106       430,546          
Gains (losses) on derivative contracts $ 5,393       $ 3,543          
Interest earned on cash and short-term investments (percent) 0.70% 0.70% 0.70% 0.70% 0.90% 0.90% 0.90% 0.90%    
Impact of 10% change in interest earned on earnings before taxes         $ 100          
Outstanding debt $ 11,900       0          
Interest rate on borrowings (percent)                   3.60%
Minimum finance lease payments payable, at present value 30,561       33,565          
Impact of 10% increase in metal prices on revenues 165,100       138,000          
Impact of 10% decrease in metal prices on revenues 166,400       138,200          
Impact of 10% increase in metal prices on earnings before taxes 7,200       4,600          
Impact of 10% decrease in metal prices on earnings before taxes 7,200       4,600          
Gain (loss) on derivatives 0       38          
Dore [Member]                    
Disclosure of detailed information about financial instruments [line items]                    
Value contained in precious metal inventory at refineries 81,448       77,489          
Loans [Member]                    
Disclosure of detailed information about financial instruments [line items]                    
Loans outstanding 15,300       0          
Production Concentration Risk [member]                    
Disclosure of detailed information about financial instruments [line items]                    
Value contained in precious metal inventory at refineries 52,300       61,800          
Credit risk [member]                    
Disclosure of detailed information about financial instruments [line items]                    
Current advances to suppliers 11,228       8,186          
Currency risk [member]                    
Disclosure of detailed information about financial instruments [line items]                    
Gains (losses) on derivative contracts   $ (200) S/ (3,700) $ 900   $ 1,600 S/ (2,200) $ (600)    
Effect of 10% change in exchange rate on income before taxes $ 23,000       $ 13,800          
Interest rate risk [member]                    
Disclosure of detailed information about financial instruments [line items]                    
Weighted averate rate on lease liabilities 10.60%       9.30%          
Interest rate risk [member] | Credit Facility [member]                    
Disclosure of detailed information about financial instruments [line items]                    
Outstanding debt                 $ 500,000  
Diesel Fuel Swaps Price Risk [member]                    
Disclosure of detailed information about financial instruments [line items]                    
Gain on derivatives $ 9,400       $ 4,700          
Copper Price Risk                    
Disclosure of detailed information about financial instruments [line items]                    
Gain (loss) on derivatives (1,100)                  
Zinc Price Risk                    
Disclosure of detailed information about financial instruments [line items]                    
Gain (loss) on derivatives (100)                  
Trade receivables from provisional concentrate sales [member] | Customer Concentration Risk [member]                    
Disclosure of detailed information about financial instruments [line items]                    
Trade and other receivables $ 40,000       $ 35,100          
Number of well-known concentrate buyers | buyer 5 5 5 5            
Weighted average [member] | Credit Facility [member]                    
Disclosure of detailed information about financial instruments [line items]                    
Interest rate on borrowings (percent)         2.60%