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OTHER NON-FINANCIAL ASSETS (Details) $ in Thousands | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Jan. 01, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
--- | --- | --- | --- | --- | ---
OTHER NON-FINANCIAL ASSETS (Details) [Line Items] |  |  |  |  |
Reserve maintain | $ (367,577) | $ (4,365) | $ 554,884 | $ 760,761 | $ 580,870
Number of aircraft under operating leases | 8 |  |  |  |
Aircraft [member] |  |  |  |  |
OTHER NON-FINANCIAL ASSETS (Details) [Line Items] |  |  |  |  |
Reserve maintain | $ 45,831 | $ 52,667 |  |  |

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- Definition A component of equity representing reserves within equity, not including retained earnings. [Refer: Retained earnings] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 78 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_78_e&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Represents number of aircraft. + References No definition available. + Details
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- References No definition available. + Details
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- Details
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