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FINANCIAL RISK MANAGEMENT (Details 3) - Interest Rate Risk [Member] - Interest Rate Derivative Contracts [Member] - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017
Bottom of range [Member] |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |
Increase (decrease) futures curve in libor 3 months | -100 basis points |
Positions on effect on profit or loss before tax | $ (710) | $ (1,900)
Positions effect on equity | $ (29,260) | (29,260)
Top of range [Member] |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |
Increase (decrease) futures curve in libor 3 months | +100 basis points |
Positions on effect on profit or loss before tax | $ 700 | 1,900
Positions effect on equity | $ 29,260 | $ 29,260

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