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Finance costs and finance revenues (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Finance revenues: |  |  |
Interest on time deposits | $ 5,176 | $ 1,050 | $ 358
Interests on tax claims | 1,701 | 153 | 487
Interests on third parties loans | 561 | 813 | 489
Interests on loans to associates, note 30(a) | 92 | 1,685 | 4,164
Dividends income | 0 | 0 | 589
Income from financial instruments | 0 | 0 | 743
Other finance revenues | 341 | 43 | 0
Finance income before unrealized variation of fair value related to contingent consideration liability | 7,871 | 3,744 | 6,830
Unrealized variation of the fair value related to contingent consideration liability (b) | 1,815 | 1,773 | 0
Total finance revenues | 9,686 | 5,517 | 6,830
Finance costs: |  |  |
Interest on borrowings | 31,538 | 27,052 | 18,668
Banking expenses | 729 | 552 | 319
Tax on financial transactions | 173 | 180 | 159
Interest on loans | 2 | 1,056 | 4,643
Increase in debt issuance costs, note 16(f) | 0 | 480 | 0
Interest on commercial obligations | 0 | 5 | 496
Other finance costs | 6,492 | 10,934 | 1,880
Finance costs before unrealized variation of fair value related to contingent consideration liability | 32,450 | 29,332 | 25,115
Accrual of the present value for mine closure, note 15(b) | 4,982 | 4,382 | 4,116
Accrual of debt issuance costs, note 16(f) | 1,024 | 909 | 0
Unrealized variation of the fair value related to contingent consideration liability (b) | 0 | 0 | 2,349
Finance costs | $ 38,456 | $ 34,623 | $ 31,580

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- Definition The amount of finance costs before unrealized variation of fair value related to contingent consideration liability. + References No definition available. + Details
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- Definition The amount of finance income before unrealized variation of fair value related to contingent consideration liability + References No definition available. + Details
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- Definition The amount of increase in debt issue cost. + References No definition available. + Details
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- Definition The amount of Interests received on tax claims for the reporting period. + References No definition available. + Details
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- Definition The amount of interest expense on bank loans and overdrafts. [Refer: Interest expense; Bank overdrafts] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The amount of interest income on loans and receivables. [Refer: Interest income; Loans and receivables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2021-01-01 -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-02&anchor=para_112_c&doctype=Standard&book=b_pdf -URIDate 2018-03-16 + Details
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