COMMITMENTS AND CONTINGENCIES: - Others (Details) S/ in Millions, $ in Millions		1 Months Ended						12 Months Ended
	Feb. 20, 2020 MWh	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2018 USD ($) T	May 31, 2016 MW	Jul. 31, 2014 MW	Jun. 30, 2014 MW	Dec. 31, 2024 USD ($) item	Dec. 31, 2024 PEN (S/) item	Dec. 31, 2024 PEN (S/)
Other commitments:
Commitment for capital projects | $								$ 236.2
Michiquillay
Other commitments:
Pre-operational period		12 years
Extended pre-operational period		3 years
Investment in projects in next five years | $		$ 20.0
Number of meters drilled | item								140,130	140,130
Number of core samples obtained | item								45,762	45,762
Period of investment in projects		5 years
Toquepala Concentrator Expansion | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								$ 118.0	S/ 445.0
Commitment liability recorded in the balance sheet | $								27.8
Development Fund Moquegua Region | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								$ 265.3	S/ 1,000.0
Number of schools agreed for construction. | item								3	3
Amount committed to funding for school projects								$ 4.8	S/ 18.2
Amount committed for funding social and infrastructure improvement projects, build tracks and sidewalks								1.9	7.0
Copper | Michiquillay | Peru
Other commitments:
Contingent contractual obligation | $				$ 400.0
Estimated mineralized material (in tons) | T				2,288,000,000
Copper grade percentage				0.43%
Annual production ( in tons) | T				225,000
Initial mine life				25 years
Contractual obligation paid on project | $			$ 12.5	$ 12.5
Remaining amount to pay if project is developed | $			$ 375.0
Funding for Different Projects | Development Fund Moquegua Region | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								66.7	251.5
Educational Project | Toquepala Concentrator Expansion | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								5.0	18.8
Educational Project | Development Fund Moquegua Region | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								28.8	108.4
Amount of investment in project								28.3		S/ 106.7
Agricultural Projects | Toquepala Concentrator Expansion | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								29.7	112.0
Construction of Cularjahuira Dam | Toquepala Concentrator Expansion | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								4.1	15.6
Study Of Engineering For Collazas Dam | Toquepala Concentrator Expansion | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								0.7	2.6
Infrastructure Projects | Toquepala Concentrator Expansion | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								16.0	60.4
Water Treatment | Development Fund Moquegua Region | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								$ 28.0	S/ 105.5
Percentage of progress on construction								51.00%	51.00%
Drinking Water Project | Toquepala Concentrator Expansion | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								$ 2.5	S/ 9.6
Feasibility Studies and Minor Projects | Development Fund Moquegua Region | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								3.3	12.4
Works For Taxes | Toquepala Concentrator Expansion | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								27.1	102.1
Works For Taxes | Development Fund Moquegua Region | Peru
Other commitments:
Amount committed to funding for social and infrastructure improvement projects								$ 60.5	S/ 228.0
Number of Infrastructure Projects Agreed for Construction | item								4	4
Amount financed per-investment studies for basic sanitation								$ 0.1	S/ 0.3
Pre investment studies for road infrastructure								$ 1.0	S/ 3.6
Works For Taxes | Apurimac Region
Other commitments:
Number of schools agreed for construction. | item								2	2
Amount committed to funding for school projects								$ 22.2	S/ 83.8
Works For Taxes | Arequipa Region
Other commitments:
Number of schools agreed for construction. | item								2	2
Amount committed to funding for school projects								$ 29.0	S/ 109.5
Amount committed to Finance for past infrastructure project								1.7	6.3
Works For Taxes | Cajamarca Region
Other commitments:
Amount committed for funding health projects								$ 0.2	S/ 0.7
Electroperu S.A | Power purchase agreements | Peru
Other commitments:
Purchase agreement, contracted power capacity (in megawatts) | MW							120
Term of power purchase agreement related to sale of power plant							20 years
Parque Eolico de Fenicias, S. de R.L. de C.V | Power purchase agreements | Mexico
Other commitments:
Term of power purchase agreement related to sale of power plant	20 years
Purchase agreement, contracted power capacity (in megawatts per year) | MWh	611,400
Kallpa | Power purchase agreements | Peru
Other commitments:
Purchase agreement, contracted power capacity (in megawatts) | MW						120
Term of power purchase agreement related to sale of power plant						10 years
Kallpa | Power purchase agreements | Peru | Maximum
Other commitments:
Purchase agreement, contracted power capacity (in megawatts) | MW					80