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Subsidiaries with material non-controlling interest - Statements of cash flow (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Subsidiaries with material non-controlling interest [Line Items]      
Operating activities $ (41,666) $ 233,495 $ (122,885)
Investing activities 205,753 (86,287) (62,224)
Financing activities (370,500) 461,332 (35,258)
Increase in cash and cash equivalents in the year (123,081) 141,550 25,403
Sociedad Minera El Brocal S.A.A      
Disclosure Of Subsidiaries with material non-controlling interest [Line Items]      
Operating activities 77,223 104,858 53,304
Investing activities (62,579) (37,618) (24,699)
Financing activities (23,778) (57,176) (1,954)
Increase in cash and cash equivalents in the year (9,134) 10,064 26,651
Minera La Zanja S.R.L      
Disclosure Of Subsidiaries with material non-controlling interest [Line Items]      
Operating activities 0 (50,647) (5,751)
Investing activities 0 (998) (825)
Financing activities 0 0 0
Increase in cash and cash equivalents in the year 0 (51,645) (6,576)
S.M.R.L. Chaupiloma Dos de Cajamarca      
Disclosure Of Subsidiaries with material non-controlling interest [Line Items]      
Operating activities 0 10,838 13,738
Investing activities 0 0 0
Financing activities 0 (11,900) (12,850)
Increase in cash and cash equivalents in the year 0 (1,062) 888
Apu Coropuna S.R.L.      
Disclosure Of Subsidiaries with material non-controlling interest [Line Items]      
Operating activities (85) (1,227) (74)
Investing activities 0 0 0
Financing activities 0 0 0
Increase in cash and cash equivalents in the year $ (85) $ (1,227) $ (74)