CASH, CASH EQUIVALENTS AND OTHER INVESTMENTS - NON CURRENT AND CURRENT (Other investments) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Cash, cash equivalents and other investments [Abstract]
Investments in companies under cost method	$ 252	$ 252
Investments in debt instruments	3,001	6,943
Other investments, net – Non-current	$ 3,253	$ 7,195

The amount of instruments representing indebtedness held by the entity.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_55&doctype=Standard
-URIDate 2019-03-27

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