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COMMITMENTS AND CONTINGENCIES: - Labor matters (Details)
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2022
PEN (S/)
Dec. 31, 2022
USD ($)
Mar. 31, 2023
item
Jun. 30, 2023
item
employee
Dec. 31, 2021
PEN (S/)
item
Dec. 31, 2021
USD ($)
item
Labor matters            
Compliance with Arbitration Award, Compensation Bonus Paid to Each Employee S/ 4,000 $ 1,101        
Compliance with Arbitration Award, Signing Bonus Paid to Each Employee S/ 1,000 $ 275        
Ilo and Cuajone            
Labor matters            
Number of labor unions     6      
Peru | Labor Matters            
Labor matters            
Percentage of labor unionized       69.40%    
Total number of workers | employee       4,490    
Number of labor unions       6    
Number of labor unions represent majority of workers       0    
Extended term of agreement         6 years 6 years
Annual salary increase (as a percent)         5.00% 5.00%
Number of labor unions of collective agreement signed         6 6
Long term agreement bonus         S/ 10,000 $ 2,753
Peru | Labor Matters | Minimum            
Labor matters            
Term of agreement         3 years 3 years
Labor expense         S/ 45,000 $ 12,386
Peru | Labor Matters | Maximum            
Labor matters            
Term of agreement         6 years 6 years
Labor expense         S/ 90,000 $ 24,773