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.

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

Name:	ifrs-full_InterestCostsCapitalised
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

MINING INTERESTS (Details Textual) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
MINING INTERESTS (Details Textual) - USD ($) $ in Millions	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