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FINANCIAL RISK MANAGEMENT (Details) - Schedule of sensitivity analysis - Interest rate risk [member] - Interest Rate Derivative Contracts [member] - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Top of range [member]    
FINANCIAL RISK MANAGEMENT (Details) - Schedule of sensitivity analysis [Line Items]    
Increase (decrease) futures curve in libor 3 months +100 basis points +100 basis points
Positions on effect on profit or loss before tax $ (42,110) $ (27,600)
Positions effect on equity $ 13,620
Bottom of range [member]    
FINANCIAL RISK MANAGEMENT (Details) - Schedule of sensitivity analysis [Line Items]    
Increase (decrease) futures curve in libor 3 months -100 basis points -100 basis points
Positions on effect on profit or loss before tax $ 42,110 $ 27,600
Positions effect on equity $ (14,710)