COMMITMENTS AND CONTINGENCIES: - Labor matters (Details)				1 Months Ended	3 Months Ended			9 Months Ended
	Oct. 23, 2023 PEN (S/)	Oct. 23, 2023 USD ($)	Jun. 14, 2023	Jun. 30, 2023 item	Jun. 30, 2024 item	Dec. 31, 2023 item	Mar. 31, 2023 item	Sep. 30, 2024 item employee
Labor matters
Number of productive units						3
Period of litigation								12 years
Percentage of affiliated workers in a union renewed its representatives						24.70%
Percentage of workers in a union						25.70%
Ilo and Cuajone
Labor matters
Number of labor unions						6	6
Peru | Labor Matters
Labor matters
Percentage of labor unionized								57.40%
Total number of workers | employee								5,128
Number of labor unions					6			6
Amount of Litigation settlement award	S/ 11,000.0	$ 2,961.8
Number of labor unions represent majority of workers								0
Number of meetings with the unions to discuss different issues of collective interest				2	5
Mexico
Labor matters
Threshold days to resume activities			15 days