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Other Financial Liabilities (debt) - Additional information (Details)
 1 Months Ended 12 Months Ended
Jun. 30, 2017
USD ($)
Dec. 31, 2021
USD ($)
installment
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Jun. 30, 2021
Dec. 31, 2014
USD ($)
Disclosure Of Other Financial Liabilities debt [Line Items]            
Repayments of borrowings, classified as financing activities   $ 65,793,000 $ 7,197,000 $ 95,000,000    
LIBOR | Credit Facility | Spread Rate            
Disclosure Of Other Financial Liabilities debt [Line Items]            
Percentage of received borrowing facility   1.90%        
Sociedad Minera El Brocal S.A.A            
Disclosure Of Other Financial Liabilities debt [Line Items]            
Interest expense   $ 10,100,000 22,400,000 39,100,000    
Extinguishment debt issuance cost   300,000 900,000      
Total credit facility   1,500,000,000        
Repaid line of credit facility   1,200,000,000        
Additional repayment of line of credit facility   200,000,000        
Amortization of debt issuance costs   900,000 $ 1,700,000      
Sociedad Minera El Brocal S.A.A | Senior unsecured credit facility            
Disclosure Of Other Financial Liabilities debt [Line Items]            
Borrowings           $ 1,800,000
Increased in Credit Facility $ 225,000,000          
Sociedad Minera El Brocal S.A.A | Credit Facility            
Disclosure Of Other Financial Liabilities debt [Line Items]            
Notional amount   $ 325,000,000        
Number of amortization installments | installment   4        
Percentage of received borrowing facility   35.00% 15.00%   15.00%  
Extinguishment debt issuance cost   $ 300,000 $ 900,000 $ 1,300,000    
Repaid line of credit facility   $ 0