OTHER LIABILITIES - NON CURRENT AND CURRENT (Other liabilities - Non-current) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Disclosure of other liabilities [Abstract]
Post-employment benefits	$ 312,293	$ 275,950
Other employee benefits	38,891	31,312
Asset retirement obligation (note 19)	24,554	27,829
Other	38,803	37,955
Other liabilities – Non-current	$ 414,541	$ 373,046

The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2017-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard
-URIDate 2017-03-09

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