FINANCIAL INSTRUMENTS - Interest Expense Relating to Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disclosure of detailed information about financial instruments [abstract]
Interest expense calculated using the effective interest rate method	$ 27,243	$ 31,040	$ 19,020

The amount of interest expense for financial liabilities that are not at fair value through profit or loss. [Refer: At fair value [member]; Interest expense; Financial liabilities]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2020-01-01
-Paragraph 20
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_20_b&doctype=Standard
-URIDate 2020-01-01

Name:	ifrs-full_InterestExpenseForFinancialLiabilitiesNotAtFairValueThroughProfitOrLoss
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration