XML 154 R132.htm IDEA: XBRL DOCUMENT v3.23.1
Investments in associates and joint venture - Additional information (Details)
12 Months Ended
Dec. 31, 2022
USD ($)
$ / shares
Dec. 31, 2022
PEN (S/)
Dec. 31, 2021
USD ($)
$ / shares
Dec. 31, 2020
USD ($)
Investments in associates and joint ventures        
Provision for workers participation $ 1,289,000 S/ 4,922,000    
Gross proceeds to associate $ 1,677,000   $ 0 $ 13,453,000
Sociedads Minera Cerro Verde S.A.A.        
Investments in associates and joint ventures        
Percent of common shares acquired 19.58% 19.58% 19.58%  
market capitalization of shares $ 2,043,000,000   $ 2,552,000,000  
market capitalization value per share | $ / shares $ 29.80   $ 37.23  
Transportadora Callao SA        
Investments in associates and joint ventures        
Percentage of voting equity interests acquired 8.00%      
Tinka resources Ltd        
Investments in associates and joint ventures        
Percent of common shares acquired 19.32% 19.32% 19.30%  
market capitalization of shares $ 11,000,000.0   $ 11,000,000.0  
market capitalization value per share | $ / shares $ 0.14   $ 0.16