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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.