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Closure and Rehabilitation Provisions (Tables) | 12 Months Ended
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Dec. 31, 2018
Closure and Rehabilitation Provisions [abstract] |
Schedule of Closure and Rehabilitation Provisions |
|  | Closure and rehabilitation provisions
|  | Caylloma Mine |  | San Jose Mine |  | Lindero Project |  | Total
Balance December 31, 2017 |  |  | 9,624 |  |  | 4,100 |  |  | 509 |  |  | 14,233
Changes in estimate |  |  | 1,266 |  |  | (624) |  |  | 896 |  |  | 1,538
Reclamation expenditures |  |  | (559) |  |  | (123) |  |  | - |  |  | (682)
Accretion |  |  | 469 |  |  | 361 |  |  | 22 |  |  | 852
Effect of foreign exchange changes |  |  | - |  |  | 2 |  |  | - |  |  | 2
Balance December 31, 2018 |  |  | 10,800 |  |  | 3,716 |  |  | 1,427 |  |  | 15,943
Less: Current portion |  |  | 682 |  |  | 159 |  |  | - |  |  | 841
Non-current portion |  | $ | 10,118 |  | $ | 3,557 |  | $ | 1,427 |  | $ | 15,102
|  | Closure and rehabilitation provisions
|  |  | Caylloma Mine |  |  | San Jose Mine |  |  | Lindero Project |  |  | Total
Balance December 31, 2016<R>January 1, 2017</R> |  | $ | 8,182 |  | $ | 4,822 |  | $ | 208 |  | $ | 13,212
Changes in estimate |  |  | 1,761 |  |  | (1,152) |  |  | 301 |  |  | 910
Incurred and charged against the provision |  |  | (623) |  |  | (170) |  |  | -<R>–</R> |  |  | (793)
Accretion |  |  | 304 |  |  | 380 |  |  | -<R> –</R> |  |  | 684
Effect of foreign exchange changes |  |  | -<R>–</R> |  |  | 220 |  |  | -<R>–</R> |  |  | 220
Balance December 31, 2017 |  |  | 9,624 |  |  | 4,100 |  |  | 509 |  |  | 14,233
Less: Current portion |  |  | 1,533 |  |  | 123 |  |  | -<R>–</R> |  |  | 1,656
Non-current portion |  | $ | $ 8,091 |  | $ | $ 3,977 |  | $ | 509 |  | $ | $ 12,577
Schedule of Estimates Used in Closure and Rehabilitation Provisions |
|  | Closure and rehabilitation provisions
|  | Caylloma Mine |  | San Jose Mine |  | Lindero Project |  | Total
Anticipated settlement date |  |  | 2022 - 2027 |  |  | 2025 - 2037 |  |  | 2029 - 2042 |  |  |
Undiscounted uninflated estimated cash flow |  | $ | 11,263 |  | $ | 4,991 |  | $ | 1,653 |  | $ | 17,907
Estimated life of mine (years) |  |  | 10 |  |  | 6 |  |  | 14 |  |  |
Discount rate |  |  | 4.37% |  |  | 8.62% |  |  | 2.87% |  |  |
Inflation rate |  |  | 2.00% |  |  | 3.72% |  |  | 2.20% |  |  |

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