XML 117 R95.htm IDEA: XBRL DOCUMENT v3.23.1
Identification and business activity - Write - off of mineral stock in the subsidiary El Brocal (Details) - USD ($)
 3 Months Ended 12 Months Ended
Nov. 30, 2022
Dec. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Identification and business activity          
Write-off     $ 29,842,000 $ 30,774,000  
Depreciation and amortization     176,781,000 187,211,000 $ 189,620,000
Cost of sales     763,473,000 $ 813,106,000 $ 652,613,000
Sociedad Minera El Brocal S.A.A          
Identification and business activity          
Cost of sales of goods, excluding depreciation and amortization     10,957,000    
Depreciation and amortization     5,025,000    
Exploration in operating units     420,000    
Cost of sales     $ 16,402,000    
Management | Sociedad Minera El Brocal S.A.A | Mineral stock          
Identification and business activity          
Write-off $ 483,563        
Quantity of DMT write off 16,402,000        
Provision for loss of inventory value 97,244        
Quantity of provision for loss of inventory value $ 1,504,000        
Net effect   $ 14,898,000