XML 196 R171.htm IDEA: XBRL DOCUMENT v3.21.1
Other Financial Liabilities (debt) - Movement of the changes derived from the financing activities (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disclosure Of Other Financial Liabilities debt [Line Items]      
Cash flows from (used in) financing activities $ (35,258) $ (100,618) $ (74,052)
Sociedad Minera El Brocal S.A.A      
Disclosure Of Other Financial Liabilities debt [Line Items]      
Other financial liabilities 911,675 1,118,538  
Additions 3,328 550  
Payments (314,376) (210,479)  
Long term to short term transfers 0 0  
Others change in other financial liabilities 2,041 3,066  
Other financial liabilities 602,668 911,675 1,118,538
Leases, Current [Member] | Sociedad Minera El Brocal S.A.A      
Disclosure Of Other Financial Liabilities debt [Line Items]      
Other financial liabilities 8,855 8,119  
Additions 1,477 464  
Payments (9,376) (10,479)  
Long term to short term transfers 9,402 10,751  
Others change in other financial liabilities (135) 0  
Other financial liabilities 10,223 8,855 8,119
Noncurrent, Leases [Member] | Sociedad Minera El Brocal S.A.A      
Disclosure Of Other Financial Liabilities debt [Line Items]      
Other financial liabilities 76,944 87,609  
Additions 1,851 86  
Payments 0 0  
Long term to short term transfers (9,402) (10,751)  
Others change in other financial liabilities (399) 0  
Other financial liabilities 68,994 76,944 87,609
Senior unsecured credit facility [Member] | Sociedad Minera El Brocal S.A.A      
Disclosure Of Other Financial Liabilities debt [Line Items]      
Other financial liabilities 830,000 1,030,000  
Additions 0 0  
Payments (305,000) (200,000)  
Long term to short term transfers 0 0  
Others change in other financial liabilities 0 0  
Other financial liabilities 525,000 830,000 1,030,000
Debt issuance cost [Member] | Sociedad Minera El Brocal S.A.A      
Disclosure Of Other Financial Liabilities debt [Line Items]      
Other financial liabilities 4,124 7,190  
Additions 0 0  
Payments 0 0  
Long term to short term transfers 0 0  
Others change in other financial liabilities 2,575 3,066  
Other financial liabilities $ 1,549 $ 4,124 $ 7,190