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Inventory, net (Details 2) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Disclosure of Inventory, net [Abstract] |  |  |
Beginning balance | $ (123) | $ 20,472 | $ 7,735
Transfer from available for sale units | 0 | 1,448 | 0
Increase decrease in provision for impairment from change in provision for impairment of finished goods | 2,118 | (7,581) | 13,096
Increase decrease in provision for impairment from change in provision for impairment of finished goods of discontinued operations | (1,345) | (706) | (1,474)
Increase decrease in provision for impairment from changes in provision for impairment of spare parts and supplies | 2,444 | (110) | 1,115
Reversal of impairment loss | (11,770) | 0 | 0
Final balance | $ 11,603 | $ 8,386 | $ 20,472

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- Definition The impairment of mineral deposits. + References No definition available. + Details
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- Definition The amount recognised as an increase of the carrying amount of an asset or cash-generating unit to its recoverable amount when an impairment loss had been previously recognised. [Refer: Impairment loss] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2017-01-01 -Paragraph 130 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2017-03-01&anchor=para_130_b&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2017-01-01 -Paragraph 130 -Subparagraph d -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=36&date=2017-03-01&anchor=para_130_d_ii&doctype=Standard -URIDate 2017-03-09 + Details
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