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Closure and Rehabilitation Provisions (Schedule of Closure and Rehabilitation Provisions) (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 | Dec. 31, 2016
Disclosure of other provisions [line items] |  |
Current portion | $ 1,656 | $ 1,121
Other non-current procivions | 12,577 | $ 12,091
Provision for decommissioning, restoration and rehabilitation costs [member] |  |
Disclosure of other provisions [line items] |  |
Balance January 1, 2017 | 13,212 |
Changes in estimate | 910 |
Incurred and charged against the provision | (793) |
Accretion expense | 684 |
Effect of foreign exchange changes | 220 |
Balance December 31, 2017 | 14,233 |
Current portion | 1,656 |
Other non-current procivions | 12,577 |
Caylloma M&I Property [member] | Provision for decommissioning, restoration and rehabilitation costs [member] |  |
Disclosure of other provisions [line items] |  |
Balance January 1, 2017 | 8,182 |
Changes in estimate | 1,761 |
Incurred and charged against the provision | (623) |
Accretion expense | 304 |
Balance December 31, 2017 | 9,624 |
Current portion | 1,533 |
Other non-current procivions | 8,091 |
San Jose M&I Property [member] | Provision for decommissioning, restoration and rehabilitation costs [member] |  |
Disclosure of other provisions [line items] |  |
Balance January 1, 2017 | 4,822 |
Changes in estimate | (1,152) |
Incurred and charged against the provision | (170) |
Accretion expense | 380 |
Effect of foreign exchange changes | 220 |
Balance December 31, 2017 | 4,100 |
Current portion | 123 |
Other non-current procivions | 3,977 |
Lindero Project [member] | Provision for decommissioning, restoration and rehabilitation costs [member] |  |
Disclosure of other provisions [line items] |  |
Balance January 1, 2017 | 208 |
Changes in estimate | 301 |
Balance December 31, 2017 | 509 |
Other non-current procivions | $ 509 |

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- Definition The increase (decrease) in other provisions resulting from foreign currency exchange rate changes on provisions measured in a currency different from the entity's presentation currency. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2017-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_84&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The increase in other provisions through adjustments arising from the passage of time. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2017-01-01 -Paragraph 84 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_84_e&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The increase (decrease) in other provisions resulting from transfers and changes that the entity does not separately disclose in the same statement or note. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2017-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2017-03-01&anchor=para_84&doctype=Standard -URIDate 2017-03-09 + Details
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