IPP SOLAR PARKS, INVESTMENT PROPERTY - Secured borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Borrowings	$ 249,729	$ 159,161
Secured
Borrowings	244,030	150,585
IPP Solar Parks \| Secured
Carrying amounts of solar parks pledged to secure borrowings	277,400	215,600	$ 100,200
Borrowings	$ 244,000	$ 150,600	$ 97,100

The amount of property, plant and equipment pledged as security for liabilities. [Refer: Property, plant and equipment]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 16
-IssueDate 2017-01-01
-Paragraph 74
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_74_a&doctype=Standard
-URIDate 2017-03-09

Name:	ifrs-full_PropertyPlantAndEquipmentPledgedAsSecurity
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant