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EMPLOYEE BENEFITS (Details) - Schedule of sensitivity analysis for the variables - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Discount rate    
Change in the accrued liability an closing for increase in 100 p.b. $ (4,576) $ (7,257)
Change in the accrued liability an closing for decrease of 100 p.b. 5,244 5,365
Rate of wage growth    
Change in the accrued liability an closing for increase in 100 p.b. 4,946 4,989
Change in the accrued liability an closing for decrease of 100 p.b. $ (4,678) $ (7,159)