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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, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |
Profit (loss)for the year |  | $ (11,654) | $ 64,435 | $ (327,814) |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Impairment loss |  |  | 21,620 | 0 |
Net loss |  | (11,654) | 64,435 | (327,814) |
Equity |  | 3,029,565 | 3,063,627 | 3,047,213 | $ 3,389,236
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | 3,029,565 | 3,063,627 | 3,047,213 | $ 3,389,236
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 |  | 119,710,000 | 349,881,000 | 340,907,000 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Impairment loss |  |  | 0 | 0 |
Net loss |  | 119,710,000 | 349,881,000 | 340,907,000 |
Effect of transition to IFRSs [member] |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |
Profit (loss)for the year |  | (81,517) | (175,455) | (1,043,752) |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | (81,517) | (175,455) | (1,043,752) |
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 |  | 119,710 | 349,881 | 340,907 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | 119,710 | 349,881 | 340,907 |
Equity |  | 5,108,872 | 5,189,162 | 4,839,281 |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | 5,108,872 | 5,189,162 | 4,839,281 |
Effect of transition to IFRSs [member] | Impairment loss [Member] |  |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Impairment loss |  |  | 0 | (889,499) |
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] | Reversal of depreciation of assets impaired [Member] |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |
Profit (loss)for the year |  | 320,424 | 294,454 | 101,855 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | 320,424 | 294,454 | 101,855 |
Equity |  | 994,684 | 674,260 |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | 994,684 | 674,260 |  |
Effect of transition to IFRSs [member] | Elimination of impairment loss recorded under US GAAP [Member] |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |
Profit (loss)for the year |  | 0 | 0 | 933,200 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | 0 | 0 | 933,200 |
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] |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |
Profit (loss)for the year |  | (18,227) | (6,360) | 22,156 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | (18,227) | (6,360) | 22,156 |
Equity |  | 15,773 | 34,000 | 41,069 |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | 15,773 | 34,000 | 41,069 |
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 |  | (64,452) | (77,361) | 36,252 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | (64,452) | (77,361) | 36,252 |
Equity |  | (204,887) | (140,435) | (63,074) |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | (204,887) | (140,435) | (63,074) |
Effect of transition to IFRSs [member] | Reclamation and mine closure [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] | 20,537 | (76,963) | 18,979 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss | [1] | 20,537 | (76,963) | 18,979 |
Equity | [1] | (12,323) | (27,225) | 18,283 |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity | [1] | (12,323) | (27,225) | 18,283 |
Effect of transition to IFRSs [member] | Inventories [Member] |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |
Profit (loss)for the year |  | 10,217 | 17,169 | (36,076) |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | 10,217 | 17,169 | (36,076) |
Equity |  | (2,903) | (13,120) | (30,289) |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | (2,903) | (13,120) | (30,289) |
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 |  | (29,515) | (28,804) | (19,242) |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | (29,515) | (28,804) | (19,242) |
Equity |  | (108,259) | (78,744) | (49,940) |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | (108,259) | (78,744) | (49,940) |
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 |  | (7,079) | 32,349 | (19,007) |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | (7,079) | 32,349 | (19,007) |
Equity |  | (1,863) | 5,216 | (27,133) |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | (1,863) | 5,216 | (27,133) |
Effect of transition to IFRSs [member] | Deferred income tax of reconciliation items [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 |  | 33,291 | 24,529 | 5,013 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | 33,291 | 24,529 | 5,013 |
Equity |  | 101,548 | 68,257 | 43,728 |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | 101,548 | 68,257 | 43,728 |
Effect of transition to IFRSs [member] | Others [Member] |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |
Profit (loss)for the year |  | (151) | (1,100) | (137) |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | (151) | (1,100) | (137) |
Equity |  | (2,776) | (2,624) | (4,639) |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | (2,776) | (2,624) | (4,639) |
Effect of transition to IFRSs [member] | 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 |  | (26) | (25) | 116 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | (26) | (25) | 116 |
Equity |  | (334) | (308) | (283) |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | (334) | (308) | (283) |
Effect of transition to IFRSs [member] | Asset retirement obligation [Member] |  |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Equity | [1] |  |  | 152,037 |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity | [1] |  |  | 152,037 |
Effect of transition to IFRSs [member] | Asset retirement obligation [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 |  | 1,351 | 862 | 1,422 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | 1,351 | 862 | 1,422 |
Equity |  | 1,773 | 422 | (440) |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | 1,773 | 422 | (440) |
Effect of transition to IFRSs [member] | Contingencies [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) | 0 | 0 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | (1,228) | 0 | 0 |
Equity |  | (1,228) | 0 | 0 |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | (1,228) | 0 | 0 |
Effect of transition to IFRSs [member] | Debt instrument interest [Member] |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |
Profit (loss)for the year |  | (735) | 0 | 0 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | (735) | 0 | 0 |
Effect of transition to IFRSs [member] | Deb instruments [Member] |  |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Equity |  | (42,430) | 0 | 0 |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | (42,430) | 0 | 0 |
Effect of transition to IFRSs [member] | Reversal of depreciation of assets impaired under IFRS [Member] |  |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Equity |  |  |  | 379,806 |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  |  |  | 379,806 |
Effect of transition to IFRSs [member] | Reversal of depreciation of assets impaired under US GAAP [Member] |  |  |  |  |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Equity |  |  |  | 0 |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  |  |  | 0 |
Previous GAAP [member] |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |
Profit (loss)for the year |  | (69,068) | (131,243) | (1,198,139) |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | (69,068) | (131,243) | (1,198,139) |
Equity | [1] | 1,661,800 | 1,683,047 | 1,865,446 |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity | [1] | 1,661,800 | 1,683,047 | 1,865,446 |
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 |  | 53,280 | 301,431 | 345,461 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | 53,280 | 301,431 | 345,461 |
Equity |  | 4,896,850 | 5,043,570 | 4,742,139 |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | 4,896,850 | 5,043,570 | 4,742,139 |
Previous GAAP [member] | Reversal of depreciation of assets impaired [Member] |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |
Profit (loss)for the year |  | (254,006) | (237,906) | 0 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | (254,006) | (237,906) | 0 |
Equity |  | (491,912) | (237,906) |  |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity |  | (491,912) | (237,906) |  |
Previous GAAP [member] | Asset retirement obligation [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] | (89,280) | (35,911) | 3,909 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss | [1] | (89,280) | (35,911) | 3,909 |
Equity | [1] | 1,026 |  | 84,671 |
Items increasing (decreasing) reported Partners' equity: |  |  |  |  |
Equity | [1] | 1,026 |  | 84,671 |
Previous GAAP [member] | Recognition of account receivable to tax authority [Member] |  |  |  |  |
Disclosure Of Reconciliation between net income and Partners' Equity determined under IFRS and U.S. GAAP [Line Items] |  |  |  |  |
Profit (loss)for the year |  | 0 | 2,405 | 0 |
Items increasing (decreasing) reported net profit: |  |  |  |  |
Net loss |  | $ 0 | $ 2,405 | $ 0 |
[1] | Amounts previously reported by Newmont Mining corporation for the period ended December 31, 2017, 2016 and 2015 were revised during 2018 as a results of an error discovered concerning prior period amounts.

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