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Property, plant, equipment and development costs - Net cost (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | $ 1,537,870 | $ 1,650,361 |
Final balances | 1,535,195 | 1,537,870 | $ 1,650,361
Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 5,371,534 | 5,495,976 |
Final balances | 5,387,377 | 5,371,534 | 5,495,976
Gross carrying amount [Member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 3,851,044 | 3,771,978 |
Additions | 164,784 | 90,309 |
Sales and disposals | (45,204) | (9,761) |
Sales | 1,854 | 1,183 |
Final balances | 3,958,613 | 3,851,044 | 3,771,978
Gross carrying amount [Member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 9,366,048 | 9,026,755 |
Additions | 536,355 | 376,890 |
Adjustments and reclassifications | (17,831) | (18,466) |
Sales and disposals | (57,988) | (19,131) |
Transfer/Other changes | 0 | 0 |
Final balances | 9,826,584 | 9,366,048 | 9,026,755
Accumulated depreciation, amortisation and impairment [member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 2,286,755 | 2,095,342 |
Additions | 173,239 | 178,294 |
Sales and disposals | (41,280) | (583) |
Sales | 1,841 | (1,064) |
Final balances | 2,416,873 | 2,286,755 | 2,095,342
Accumulated depreciation, amortisation and impairment [member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 3,994,514 | 3,530,779 |
Additions | 502,408 | 482,688 |
Adjustments and reclassifications | 0 | 0 |
Sales and disposals | (57,715) | (18,953) |
Transfer/Other changes | 0 | 0 |
Final balances | 4,439,207 | 3,994,514 | 3,530,779
Land | Gross carrying amount [Member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 17,703 | 17,650 |
Additions | 0 | 0 |
Sales and disposals | 0 | 0 |
Sales | 0 | 0 |
Final balances | 18,765 | 17,703 | 17,650
Land | Gross carrying amount [Member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 30,382 | 24,905 |
Additions | 0 | 0 |
Adjustments and reclassifications | 0 | 0 |
Sales and disposals | 0 | 0 |
Transfer/Other changes | 2,820 | 5,477 |
Final balances | 33,202 | 30,382 | 24,905
Buildings and constructions [Member] | Gross carrying amount [Member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 2,596,406 | 2,589,004 |
Additions | 0 | 0 |
Adjustments and reclassifications | 1,041 | 430 |
Sales and disposals | (61) | (913) |
Transfer/Other changes | 11,063 | 7,885 |
Final balances | 2,608,449 | 2,596,406 | 2,589,004
Buildings and constructions [Member] | Accumulated depreciation, amortisation and impairment [member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 522,381 | 456,213 |
Additions | 72,899 | 66,846 |
Adjustments and reclassifications | 655 | 236 |
Sales and disposals | (14) | (914) |
Transfer/Other changes | 0 | 0 |
Final balances | 595,921 | 522,381 | 456,213
Machinery and equipment | Gross carrying amount [Member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 902,397 | 883,192 |
Additions | 10 | 5 |
Sales and disposals | (41,053) | (393) |
Sales | 34 | 249 |
Final balances | 874,015 | 902,397 | 883,192
Machinery and equipment | Gross carrying amount [Member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 5,098,359 | 4,985,749 |
Additions | 0 | 0 |
Adjustments and reclassifications | (1,041) | (430) |
Sales and disposals | (54,732) | (14,967) |
Transfer/Other changes | 155,044 | 128,007 |
Final balances | 5,197,630 | 5,098,359 | 4,985,749
Machinery and equipment | Accumulated depreciation, amortisation and impairment [member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 742,340 | 686,466 |
Additions | 42,698 | 56,384 |
Sales and disposals | (40,355) | (340) |
Sales | 34 | (170) |
Final balances | 744,649 | 742,340 | 686,466
Machinery and equipment | Accumulated depreciation, amortisation and impairment [member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 2,569,972 |  |
Additions | 272,528 | 279,531 | 2,305,568
Adjustments and reclassifications | (655) | (236) |
Sales and disposals | (54,519) | (14,891) |
Transfer/Other changes | 141 | 0 |
Final balances | 2,787,467 | 2,569,972 |
Transportation units | Gross carrying amount [Member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 7,662 | 8,409 |
Additions | 15 | 70 |
Sales and disposals | (277) | (152) |
Sales | 1,816 | 934 |
Final balances | 5,657 | 7,662 | 8,409
Transportation units | Gross carrying amount [Member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 33,382 | 30,098 |
Additions | 0 | 0 |
Adjustments and reclassifications | 0 | 0 |
Sales and disposals | 0 | (1,132) |
Transfer/Other changes | 2,995 | 4,416 |
Final balances | 36,377 | 33,382 | 30,098
Transportation units | Accumulated depreciation, amortisation and impairment [member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 6,650 | 7,083 |
Additions | 478 | 604 |
Sales and disposals | (153) | (143) |
Sales | 1,803 | (894) |
Final balances | 5,172 | 6,650 | 7,083
Transportation units | Accumulated depreciation, amortisation and impairment [member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 18,627 | 17,698 |
Additions | 2,160 | 1,969 |
Adjustments and reclassifications | 0 | 0 |
Sales and disposals | 0 | (1,040) |
Transfer/Other changes | 0 | 0 |
Final balances | 20,787 | 18,627 | 17,698
Fixtures and fittings | Gross carrying amount [Member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 11,770 | 11,737 |
Additions | 0 | 33 |
Sales and disposals | (702) | (98) |
Sales | 4 | 0 |
Final balances | 11,071 | 11,770 | 11,737
Fixtures and fittings | Gross carrying amount [Member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 572 | 949 |
Additions | 0 | 0 |
Adjustments and reclassifications | 0 | 0 |
Sales and disposals | 0 | (377) |
Transfer/Other changes | 0 | 0 |
Final balances | 572 | 572 | 949
Fixtures and fittings | Accumulated depreciation, amortisation and impairment [member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 10,328 | 9,824 |
Additions | 548 | 601 |
Sales and disposals | (651) | (97) |
Sales | 4 | 0 |
Final balances | 10,221 | 10,328 | 9,824
Fixtures and fittings | Accumulated depreciation, amortisation and impairment [member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 551 | 904 |
Additions | 21 | 23 |
Adjustments and reclassifications | 0 | 0 |
Sales and disposals | 0 | (376) |
Transfer/Other changes | 0 | 0 |
Final balances | 572 | 551 | 904
Other equipment | Gross carrying amount [Member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 35,395 | 30,965 |
Additions | 0 | 0 |
Adjustments and reclassifications | 0 | 0 |
Sales and disposals | (58) | (92) |
Transfer/Other changes | 885 | 4,522 |
Final balances | 36,222 | 35,395 | 30,965
Other equipment | Accumulated depreciation, amortisation and impairment [member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 24,090 | 21,240 |
Additions | 3,136 | 2,942 |
Adjustments and reclassifications | 0 | 0 |
Sales and disposals | (58) | (92) |
Transfer/Other changes | 0 | 0 |
Final balances | 27,168 | 24,090 | 21,240
Work in Progress [Member] | Gross carrying amount [Member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 46,287 | 34,934 |
Additions | 65,577 | 40,768 |
Sales and disposals | (3,049) | (1,838) |
Sales | 0 | 0 |
Final balances | 91,468 | 46,287 | 34,934
Work in Progress [Member] | Gross carrying amount [Member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 126,527 | 118,430 |
Additions | 227,216 | 158,599 |
Adjustments and reclassifications | (19) | (195) |
Sales and disposals | 0 | 0 |
Transfer/Other changes | (169,459) | (150,307) |
Final balances | 184,265 | 126,527 | 118,430
Right-of-use assets [member] | Gross carrying amount [Member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 19,232 | 16,259 |
Additions | 0 | 0 |
Sales and disposals | 0 | 0 |
Sales | 0 | 0 |
Final balances | 30,944 | 19,232 | 16,259
Right-of-use assets [member] | Gross carrying amount [Member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 98,900 | 96,451 |
Additions | 4,941 | 4,099 |
Adjustments and reclassifications | 0 | 0 |
Sales and disposals | (3,137) | (1,650) |
Transfer/Other changes | (3,348) | 0 |
Final balances | 97,356 | 98,900 | 96,451
Right-of-use assets [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 13,894 | 9,081 |
Additions | 4,290 | 4,813 |
Sales and disposals | 0 | 0 |
Sales | 0 | 0 |
Final balances | 18,184 | 13,894 | 9,081
Right-of-use assets [member] | Accumulated depreciation, amortisation and impairment [member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 30,408 | 19,589 |
Additions | 12,708 | 12,459 |
Adjustments and reclassifications | 0 | 0 |
Sales and disposals | (3,124) | (1,640) |
Transfer/Other changes | (141) | 0 |
Final balances | 39,851 | 30,408 | 19,589
Stripping activity asset [Member] | Gross carrying amount [Member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 163,487 | 152,597 |
Additions | 26,669 | 17,653 |
Sales and disposals | 0 | (6,763) |
Sales | 0 | 0 |
Final balances | 190,156 | 163,487 | 152,597
Stripping activity asset [Member] | Gross carrying amount [Member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 1,159,829 | 945,637 |
Additions | 304,198 | 214,192 |
Adjustments and reclassifications | 0 | 0 |
Sales and disposals | 0 | 0 |
Transfer/Other changes | 0 | 0 |
Final balances | 1,464,027 | 1,159,829 | 945,637
Stripping activity asset [Member] | Accumulated depreciation, amortisation and impairment [member] |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 132,159 | 111,455 |
Additions | 21,769 | 14,039 |
Sales and disposals | 0 | 0 |
Sales | 0 | 0 |
Final balances | 153,928 | 132,159 | 111,455
Stripping activity asset [Member] | Accumulated depreciation, amortisation and impairment [member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 791,571 | 678,041 |
Additions | 134,186 | 113,530 |
Adjustments and reclassifications | 0 | 0 |
Sales and disposals | 0 | 0 |
Transfer/Other changes | 0 | 0 |
Final balances | 925,757 | 791,571 | 678,041
Asset retirement costs [Member] | Gross carrying amount [Member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 186,296 | 204,567 |
Additions | 0 | 0 |
Adjustments and reclassifications | (17,812) | (18,271) |
Sales and disposals | 0 | 0 |
Transfer/Other changes | 0 | 0 |
Final balances | 168,484 | 186,296 | 204,567
Asset retirement costs [Member] | Accumulated depreciation, amortisation and impairment [member] | Sociedad Minera Cerro Verde S.A.A. |  |  |
Property, plant and equipments,net [Line Items] |  |  |
Opening balance | 36,914 | 31,526 |
Additions | 4,770 | 5,388 |
Adjustments and reclassifications | 0 | 0 |
Sales and disposals | 0 | 0 |
Transfer/Other changes | 0 | 0 |
Final balances | $ 41,684 | $ 36,914 | $ 31,526

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