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MINING INTERESTS (Details Textual) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Nov. 30, 2017 | Feb. 28, 2017 | Dec. 31, 2017 | Dec. 31, 2016
Mining Interests [Line Items] |  |  |  |
Interest costs capitalised |  |  | $ 51.3 | $ 49.4
Capitalisation rate of borrowing costs eligible for capitalisation |  |  | 5.44% | 6.70%
Gains on Disposal of El Morro Stream |  | $ 33.0 | $ 33.0 | $ 0.0
Proceeds from Sale of El Morro stream |  | 65.0 |  |
Disposals El Morro Stream |  | $ 32.0 |  |
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 weighted average of interest and other costs that an entity incurs in connection with the borrowing of funds applicable to the borrowings of the entity that are outstanding during the period, other than borrowings made specifically for the purpose of obtaining a qualifying asset. [Refer: Weighted average [member]; Borrowings] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 23 -IssueDate 2017-01-01 -Paragraph 26 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=23&date=2017-03-01&anchor=para_26_b&doctype=Standard -URIDate 2017-03-09 + Details
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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 2017-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The decrease in El Morro stream resulting from disposals. + References No definition available. + Details
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- Definition The gain on the disposal of El Morro stream. + References No definition available. + 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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- Definition Represent the amount of proceeds from sale of El Morro stream. + References No definition available. + Details
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- Details
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