Financial - risk management objectives and policies - Effect in profit or loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disclosure of financial risk management objectives and policies [Line Items]
Increase in exchange rate basis points	10.00%	10.00%	10.00%
Decrease in exchange rate basis points	(10.00%)	(10.00%)	(10.00%)
Exchange rate increased effect on income	$ 52,338	$ 47,488	$ 66,003
Exchange rate decreased effect on income	(52,338)	(47,488)	(66,003)
Sociedad Minera Cerro Verde S.A.A.
Disclosure of financial risk management objectives and policies [Line Items]
Exchange rate increased effect on income	111,450	73,173	91,734
Exchange rate decreased effect on income	$ (111,450)	$ 73,173	$ 91,734
Sociedad Minera Cerro Verde S.A.A. \| Currency exchange rates
Disclosure of financial risk management objectives and policies [Line Items]
Increase in exchange rate basis points	5.00%	5.00%	5.00%
Decrease in exchange rate basis points	(5.00%)	(5.00%)	(5.00%)
Exchange rate increased effect on income	$ (43,136)	$ (29,694)	$ (28,316)
Exchange rate decreased effect on income	$ 43,136	$ 29,694	$ 28,316