XML 173 R159.htm IDEA: XBRL DOCUMENT
v3.19.1

Provisions and contingent liabilities (Details 1) - USD ($) $ in Thousands | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure of provisions [Line Items] |  |  |  |  |  |
Beginning balance | $ 200,183 | $ 206,462 |  |  |  |
Reversal of impairment loss | 0 | (11,770) | $ 0 |  |  |
Changes and additions in estimates (discontinued operations), note 1(e) | 6,013 | 12,701 |  |  |  |
Changes and additions in estimates (continued operations), note 12(a) | 42,874 | 10,594 |  |  |  |
Provision for exploration projects | (2,433) | 891 |  |  |  |
Accretion expense (continued operations), note 27 | 4,911 | 4,360 |  |  |  |
Accretion expense (exploration projects) | 71 | 22 |  |  |  |
Accretion expense (discontinued operations), note 1(e) | 54 | 215 |  |  |  |
Disbursements | (25,796) | (23,292) |  |  |  |
Final balance | 225,877 | 200,183 | 206,462 |  |  |
Classification by maturity |  |  |  |  |  |
Current portion |  |  |  | $ 30,524 | $ 39,826 |
Non-current portion |  |  |  | 195,353 | 160,357 |
Provision for closure of mining units and exploration projects | 200,183 | 200,183 | 206,462 | 225,877 | 200,183 | $ 206,462
Minera Yanacocha SRL and subsidiary [Member] |  |  |  |  |  |
Disclosure of provisions [Line Items] |  |  |  |  |  |
Beginning balance | 1,234,731 | 1,012,888 | 578,959 |  |  |
Additional provisions | 43,560 | 221,450 | 430,292 |  |  |
Payments | (19,842) | (21,376) | (10,467) |  |  |
Unwinding of discount, note 19 | 36,015 | 21,769 | 14,104 |  |  |
Final balance | 1,294,464 | 1,234,731 | 1,012,888 |  |  |
Classification by maturity |  |  |  |  |  |
Current portion |  |  |  | 19,325 | 19,455 | 15,636
Non-current portion |  |  |  | 1,275,139 | 1,215,276 | 997,252
Provision for closure of mining units and exploration projects | $ 1,294,464 | $ 1,234,731 | $ 1,012,888 | $ 1,294,464 | $ 1,234,731 | $ 1,012,888

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