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OTHER LIABILITIES - NON CURRENT AND CURRENT (Other liabilities - Non-current) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
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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

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- Definition The amount of non-current provisions for employee benefits. [Refer: Provisions for employee benefits] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 78 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_78_d&doctype=Standard -URIDate 2017-03-09 + Details
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Period Type: | instant

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- Definition The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities] + References 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 + Details
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- Definition Asset Retirement Obligation, Noncurrent + References No definition available. + Details
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- Definition Disclosure of other liabilities [Abstract] + References No definition available. + Details
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- Definition Non-current miscellaneous other liabilities + References No definition available. + Details
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- Definition Post-employment benefit liability, non-current + References No definition available. + Details
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