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Note 28 - Related Party Transactions (Details Textual) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Statement Line Items [Line Items] |  |  |
Total number of shares issued | 1,180,536,830 | 1,180,536,830 | 1,180,536,830
Key management personnel compensation, short-term employee benefits | $ 33.7 | $ 45.8 | $ 38.6
Key management personnel compensation, share-based payment | $ 5.6 | $ 4.7 | $ 4.8
San Faustin S.A. [member] |  |  |
Statement Line Items [Line Items] |  |  |
Total number of shares issued | 713,605,187 |  |
Proportion of ownership interest in associate | 60.45% |  |
Key management personnel of entity or parent [member] |  |  |
Statement Line Items [Line Items] |  |  |
Proportion of ownership interest in associate | 0.08% |  |
Units issued, related party transactions | 558,000 | 484,000 | 500,000

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- Definition The amount of compensation to key management personnel in the form of share-based payments. [Refer: Key management personnel of entity or parent [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2017-01-01 -Paragraph 17 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=24&date=2017-03-01&anchor=para_17_e&doctype=Standard -URIDate 2017-03-09 + Details
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