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ACCOUNTS PAYABLE, NON-CURRENT (Details) - Schedule of accounts payable, non-current - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Jan. 01, 2018
Dec. 31, 2017
Trade And Other Payables Abstract        
Aircraft and engine maintenance $ 412,710 $ 513,544    
Fleet (JOL) 190,225    
Provision for vacations and bonuses 15,868 15,357    
Other sundry liabilities 307 376    
Total accounts payable, non-current $ 619,110 $ 529,277 $ 1,673,010 $ 1,695,202,000