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PROPERTY, PLANT AND EQUIPMENT (Details) - Schedule of fully depreciated assets and commitments for future purchases - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Schedule of fully depreciated assets and commitments for future purchases [Abstract]    
Gross book value of fully depreciated property, plant and equipment still in use $ 206,497 $ 261,792
Commitments for the acquisition of aircraft [1] $ 7,500,000 $ 7,390,000
[1] According to the manufacturer’s price list.