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Financial - Risk management objectives and policies (Tables) | 12 Months Ended
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Dec. 31, 2022
Disclosure of financial risk management objectives and policies [Line Items] |
Schedule of foreign-currency exchange rates risk | A table showing the effect on results of a reasonable change in foreign-currency exchange rates is presented below, with all other variables kept constant: ​
​ | ​ | ​ | ​ | ​
​ | ​ | Exchange-rate | ​ | Effect on profit (loss)
​ |  | increase/decrease |  | before income tax
​ | ​ | ​ | ​ | US$(000)
2022 |  |  |  |
Exchange rate |  | 10 | % | 58,032
Exchange rate |  | (10) | % | (58,032)
​ | ​ | ​ | ​ | ​
2021 |  |  |  |
Exchange rate |  | 10 | % | 56,122
Exchange rate |  | (10) | % | (56,122)
​ | ​ | ​ | ​ | ​
2020 |  |  |  |
Exchange rate |  | 10 | % | 7,591
Exchange rate |  | (10) | % | (7,083)
​
Schedule of interest rates risk | A table showing the effect in profit or loss of the variations of interest rates: ​
​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | Effect on profit
​ | ​ | Increase/decrease of | ​ | (loss) before
​ |  | LIBOR |  | income tax
​ | ​ | (percentage rates) | ​ | US$(000)
2022 | ​ | ​ | ​ | ​
Interest rate |  | 10 | % | (1,315)
Interest rate |  | (10) | % | 1,315
​ | ​ | ​ | ​ | ​
2021 | ​ | ​ | ​ | ​
Interest rate |  | 10 | % | (1,414)
Interest rate |  | (10) | % | 1,414
​ | ​ | ​ | ​ | ​
2020 | ​ | ​ | ​ | ​
Interest rate |  | 10 | % | (81)
Interest rate |  | (10) | % | 81
​
Schedule of information about the credit risk exposure | Set out below is the information about the credit risk exposure on the Group’s trade and other receivables: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ | Days past due |  |  |
​ | ​ | Current | ​ | < 30 days | ​ | 30 – 90 days | ​ | > 90 days | ​ | Total |
​ |  | US$(000) |  | US$(000) |  | US$(000) |  | US$(000) |  | US$(000) |
As of December 31, 2022 - |  |  |  |  |  |  |  |  |  |  | ​
Trade receivables |  | 146,070 |  | — |  | — |  | 22,276 |  | 168,346 | ​
Other receivables |  | 749,456 |  | — |  | — |  | 4,106 |  | 753,562 | ​
​ |  | 895,526 |  | — |  | — |  | 26,382 |  | 921,908 | ​
Expected credit loss rate | ​ | 0 | % | 0 | % | 0 | % | 100 | % | — | ​
Expected credit loss | ​ | — |  | — |  | — |  | (26,382) |  | (26,382) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
As of December 31, 2021 - |  |  |  |  |  |  |  |  |  |  | ​
Trade receivables |  | 149,394 |  | — |  | — |  | 22,276 |  | 171,670 | ​
Other receivables |  | 726,870 |  | — |  | — |  | 8,621 |  | 735,491 | ​
​ | ​ | 876,264 | ​ | — | ​ | — | ​ | 30,897 | ​ | 907,161 | ​
Expected credit loss rate | ​ | 0 | % | 0 | % | 0 | % | 100 | % | — | ​
Expected credit loss | ​ | — |  | — |  | — |  | (30,897) |  | (30,897) | ​
​
Schedule of financial liabilities by remaining maturity | An analysis of the Group’s financial liabilities classified according to their aging is presented below, based on undiscounted contractual payments: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | More than 5 | ​ | ​
​ |  | Less than |  | Between 1 |  | Between 2 |  | years |  | Total
​ | ​ | 1 year | ​ | and 2 years | ​ | and 5 years | ​ | ( 2028 and | ​ | ​
​ | ​ | (2023) | ​ | (2024) | ​ | (2025 to 2027) | ​ | thereafter) | ​ | ​
​ | ​ | US$(000) | ​ | US$(000) | ​ | US$(000) | ​ | US$(000) | ​ | US$(000)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
As of December 31, 2022- | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Bank loans – capital |  | — | ​ | — | ​ | — | ​ | — | ​ | —
Bank loans – interest |  | — | ​ | — | ​ | — | ​ | — | ​ | —
Trade and other payables |  | 240,737 | ​ | — | ​ | — | ​ | — | ​ | 240,737
Financial obligation – capital | ​ | 31,034 | ​ | 104,159 | ​ | 598,568 | ​ | — | ​ | 733,761
Financial obligation – interest | ​ | 39,256 | ​ | 45,770 | ​ | 64,279 | ​ | — | ​ | 149,305
Lease – capital | ​ | 3,638 | ​ | 2,282 | ​ | 2,794 | ​ | 4,238 | ​ | 12,952
Lease – interest |  | 42 | ​ | 18 | ​ | 242 | ​ | 1,136 | ​ | 1,438
Hedge derivative financial instruments | ​ | — | ​ | — | ​ | — | ​ | — | ​ | —
Contingent consideration liability |  | — | ​ | — | ​ | 11,937 | ​ | 31,934 | ​ | 43,871
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 314,707 | ​ | 152,229 | ​ | 677,820 | ​ | 37,308 | ​ | 1,182,064
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
As of December 31, 2021 - | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Bank loans – capital |  | 50,000 |  | — |  | — |  | — |  | 50,000
Bank loans – interest | ​ | 820 | ​ | — | ​ | — | ​ | — | ​ | 820
Trade and other payables |  | 248,033 |  | — |  | — |  | — |  | 248,033
Financial obligation – capital |  | 175,620 | ​ | 106,784 | ​ | 774,102 | ​ | — | ​ | 1,056,506
Financial obligation – interest | ​ | 43,313 | ​ | 40,803 | ​ | 99,634 | ​ | — | ​ | 183,750
Lease – capital | ​ | 3,906 | ​ | 1,822 | ​ | 51 | ​ | — | ​ | 5,779
Lease – interest | ​ | 74 | ​ | 95 | ​ | — | ​ | — | ​ | 169
Hedge derivative financial instruments | ​ | 6,976 | ​ | — | ​ | — | ​ | — | ​ | 6,976
Contingent consideration liability |  | — |  | — |  | 7,032 |  | 33,702 |  | 40,734
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | 528,742 |  | 149,504 |  | 880,819 |  | 33,702 |  | 1,592,767
​
Sociedad Minera Cerro Verde S.A.A. |
Disclosure of financial risk management objectives and policies [Line Items] |
Schedule of foreign-currency exchange rates risk | ​
​ | ​ | ​
​ |  | Effect on profit
​ | ​ | before income tax
​ | ​ | US$(000)
​ | ​ | ​
December 31, 2022 | ​ | ​
10% increase in future copper prices |  | 123,181
10% decrease in future copper prices |  | (123,181)
​
​ | ​ | ​
December 31, 2021 | ​ | ​
10% increase in future copper prices |  | 140,420
10% decrease in future copper prices |  | (140,420)
​
​ | ​ | ​
December 31, 2020 |  |
10% increase in future copper prices |  | 112,080
10% decrease in future copper prices |  | (112,080)
​ ​
​ | ​ | ​ | ​ | ​ | ​
​ |  | Exchange-rate |  | Effect on profit (loss) |
​ | ​ | increase/decrease | ​ | before income tax | ​
​ | ​ | ​ | ​ | US$(000) |
​ | ​ | ​ | ​ | ​ | ​
2022 | ​ | ​ | ​ | ​ | ​
Exchange rate | ​ | 5 | % | (23,801) | ​
Exchange rate | ​ | (5) | % | 23,801 | ​
​ | ​ | ​ | ​ | ​ | ​
2021 | ​ | ​ | ​ | ​ | ​
Exchange rate |  | 5 | % | (7,782) | ​
Exchange rate |  | (5) | % | 7,782 | ​
​ |  | ​ |  | ​ | ​
2020 |  | ​ |  | ​ | ​
Exchange rate |  | 5 | % | 20,656 | ​
Exchange rate |  | (5) | % | (20,656) | ​
​

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