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MINING INTERESTS (Details Textual) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2017 | Dec. 31, 2018 | Dec. 31, 2017
Mining Interests [Line Items] |  |  |
Interest costs capitalised |  | $ 0.0 | $ 51.3
Gross carrying amount [member] |  |  |
Mining Interests [Line Items] |  |  |
Increase decrease through transfers from construction in progress, inventories | $ 20.4 |  |

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- Definition The amount of interest costs that an entity incurs in connection with the borrowing of funds that are directly attributable to the acquisition, construction or production of a qualifying asset and which form part of the cost of that asset. + 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 It represents the amounts transferred out of construction in progress to inventories upon reaching commercial production. + References No definition available. + Details
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- References No definition available. + Details
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- Details
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