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Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP (Details) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2016 | Jun. 14, 2018 | Dec. 31, 2017
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | $ (150,339) | $ (28,459) | $ (11,654) |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Impairment loss |  |  |  | $ 0 |  |
Profit for the period | (150,339) | (28,459) | (11,654) |  |  |
Equity | 2,799,857 | 2,968,200 | 3,029,565 |  |  | $ 3,063,627
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 2,799,857 | 2,968,200 | 3,029,565 |  |  | 3,063,627
Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | 274,544,000 | 390,377,000 | 119,710,000 |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | 274,544,000 | 390,377,000 | 119,710,000 |  |  |
Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | (165,449) | (95,257) | (81,517) |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | (165,449) | (95,257) | (81,517) |  |  |
Equity | 324,386 | 489,712 | 583,723 |  | $ 6,216 | 659,115
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 324,386 | 489,712 | 583,723 |  | $ 6,216 | $ 659,115
Stripping activity asset [Member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | 31,419 | (41,508) | (64,452) |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | 31,419 | (41,508) | (64,452) |  |  |
Equity | (267,596) | (299,015) | (257,507) |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | (267,596) | (299,015) | (257,507) |  |  |
Reclamation and mine closure [Member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | 23 | 23 | 1,351 |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | 23 | 23 | 1,351 |  |  |
Equity | (5,480) | (5,503) | (5,526) |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | (5,480) | (5,503) | (5,526) |  |  |
Inventories [Member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | (906) | (53,424) | (29,515) |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | (906) | (53,424) | (29,515) |  |  |
Equity | (217,707) | (216,801) | (163,377) |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | (217,707) | (216,801) | (163,377) |  |  |
Deferred workers' profit participation [Member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | (24,255) | (23,449) | (7,079) |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | (24,255) | (23,449) | (7,079) |  |  |
Equity | (87,415) | (63,160) | (39,711) |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | (87,415) | (63,160) | (39,711) |  |  |
Lease Activity [Member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | 1,597 | 2,071 |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | 1,597 | 2,071 |  |  |  |
Equity | 3,668 | 2,071 |  |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 3,668 | 2,071 |  |  |  |
Deferred income tax [Member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | (6,514) | 45,759 | 33,291 |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | (6,514) | 45,759 | 33,291 |  |  |
Equity | 189,073 | 195,587 | 149,828 |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 189,073 | 195,587 | 149,828 |  |  |
Others [Member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | (222) | (134) | (26) |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | (222) | (134) | (26) |  |  |
Equity | (144) | 78 | 212 |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | (144) | 78 | 212 |  |  |
Effect of transition to IFRSs [member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | 274,544 | 390,377 | 119,710 |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | 274,544 | 390,377 | 119,710 |  |  |
Equity | 5,635,328 | 5,359,323 | 5,117,732 |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 5,635,328 | 5,359,323 | 5,117,732 |  |  |
Effect of transition to IFRSs [member] | Sociedad Minera Cerro Verde S.A.A. [Member] | Maximum |  |  |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Equity | 5,066,565 | 4,896,850 |  |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 5,066,565 | 4,896,850 |  |  |  |
Effect of transition to IFRSs [member] | Sociedad Minera Cerro Verde S.A.A. [Member] | Minimum |  |  |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Equity | 4,972,580 | 4,801,651 |  |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 4,972,580 | 4,801,651 |  |  |  |
Effect of transition to IFRSs [member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | (98,094) | 98,573 | 12,449 |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | (98,094) | 98,573 | 12,449 |  |  |
Equity | 1,078,575 | 1,176,679 | 1,078,077 |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 1,078,575 | 1,176,679 | 1,078,077 |  |  |
Effect of transition to IFRSs [member] | Impairment loss [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Equity | 2,469,188 | 2,469,188 | 2,469,188 |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 2,469,188 | 2,469,188 | 2,469,188 |  |  |
Effect of transition to IFRSs [member] | Elimination of impairment loss recorded under US GAAP [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Equity | (933,200) | (933,200) | (933,200) |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | (933,200) | (933,200) | (933,200) |  |  |
Effect of transition to IFRSs [member] | Stripping activity asset [Member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | 53 |  |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | 53 |  |  |  |  |
Effect of transition to IFRSs [member] | Stripping activity asset [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | (32,169) | 7,533 | 18,227 |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | (32,169) | 7,533 | 18,227 |  |  |
Equity | (40,409) | (8,240) | (15,773) |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | (40,409) | (8,240) | (15,773) |  |  |
Effect of transition to IFRSs [member] | Reclamation and mine closure [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | (61,555) | 54,873 | (20,537) |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | (61,555) | 54,873 | (20,537) |  |  |
Equity | 64,971 | 139,834 | 12,323 |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 64,971 | 139,834 | 12,323 |  |  |
Effect of transition to IFRSs [member] | Inventories [Member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | 55 |  |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | 55 |  |  |  |  |
Effect of transition to IFRSs [member] | Inventories [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | (929) | (7,740) | (10,217) |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | (929) | (7,740) | (10,217) |  |  |
Equity | (5,766) | (4,837) | 2,903 |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | (5,766) | (4,837) | 2,903 |  |  |
Effect of transition to IFRSs [member] | Deferred workers' profit participation [Member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | 38 |  |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | 38 |  |  |  |  |
Effect of transition to IFRSs [member] | Others [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | 20 | 276 | 151 |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | 20 | 276 | 151 |  |  |
Equity | 3,681 | 3,072 | 2,776 |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 3,681 | 3,072 | 2,776 |  |  |
Effect of transition to IFRSs [member] | Asset retirement obligation [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | 16,702 | 14,504 | 89,280 |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | 16,702 | 14,504 | 89,280 |  |  |
Equity | (29,149) | (59,160) | (1,026) |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | (29,149) | (59,160) | (1,026) |  |  |
Effect of transition to IFRSs [member] | Interest Regarding Tax Claim [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | (16,496) | 16,839 |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | (16,496) | 16,839 |  |  |  |
Equity |  | 16,839 |  |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity |  | 16,839 |  |  |  |
Effect of transition to IFRSs [member] | Income Tax Payable, Including Fines [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | (11,920) | 12,168 |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | (11,920) | 12,168 |  |  |  |
Equity |  | 12,168 |  |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity |  | 12,168 |  |  |  |
Effect of transition to IFRSs [member] | Contingencies [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year |  |  | 1,228 |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period |  |  | 1,228 |  |  |
Equity | 1,228 | 1,228 | 1,228 |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 1,228 | 1,228 | 1,228 |  |  |
Effect of transition to IFRSs [member] | Debt instrument interest [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | 1,497 | 1,497 | 735 |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | 1,497 | 1,497 | 735 |  |  |
Effect of transition to IFRSs [member] | Deb instruments [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Equity | 45,424 | 43,927 | 42,430 |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 45,424 | 43,927 | 42,430 |  |  |
Effect of transition to IFRSs [member] | Reversal of depreciation of assets impaired under IFRS [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | (97,352) | (205,653) | (320,424) |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | (97,352) | (205,653) | (320,424) |  |  |
Equity | (1,297,689) | (1,200,337) | (994,684) |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | (1,297,689) | (1,200,337) | (994,684) |  |  |
Effect of transition to IFRSs [member] | Reversal of depreciation of assets impaired under US GAAP [Member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | 104,108 | 204,276 | 254,006 |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | 104,108 | 204,276 | 254,006 |  |  |
Equity | 800,296 | 696,188 | 491,912 |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 800,296 | 696,188 | 491,912 |  |  |
Previous GAAP [member] | Sociedad Minera Cerro Verde S.A.A. [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | 275,686 | 319,715 | 53,280 |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | 275,686 | 319,715 | 53,280 |  |  |
Equity | 5,249,727 | 4,972,580 | 4,801,651 |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | 5,249,727 | 4,972,580 | 4,801,651 |  |  |
Previous GAAP [member] | Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |  |
Profit (loss) for the year | (263,543) | 3,316 | (69,068) |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |  |
Profit for the period | (263,543) | 3,316 | (69,068) |  |  |
Equity | 1,402,962 | 1,666,382 | 1,661,800 |  |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |  |
Equity | $ 1,402,962 | $ 1,666,382 | $ 1,661,800 |  |  |

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