SIGNIFICANT ACCOUNTING POLICIES - Disclosure of detailed information about finite useful lives of intangible assets (Details)	12 Months Ended
Dec. 31, 2019
Customer relationships [Member]
Significant Accounting Policies [Line Items]
Useful lives or amortisation rates, intangible assets other than goodwill	Straight-line over 10 years
Technology [Member]
Significant Accounting Policies [Line Items]
Useful lives or amortisation rates, intangible assets other than goodwill	Straight-line over 3 to 5 years

The useful lives or amortisation rates used for intangible assets other than goodwill. [Refer: Intangible assets other than goodwill]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 38
-IssueDate 2018-01-01
-Paragraph 118
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=38&date=2018-03-01&anchor=para_118_a&doctype=Standard
-URIDate 2018-03-16

Name:	ifrs-full_UsefulLivesOrAmortisationRatesIntangibleAssetsOtherThanGoodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration