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FINANCIAL RISK MANAGEMENT (Details 2) - Foreign Exchange Rate Risk [Member] - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
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Bottom of range [Member] |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |
Appreciation (depreciation) of R$ /GBP | [1] | (10.00%) | (10.00%)
Positions effect on equity |  | $ 39,800 | $ 80,500
Effect on Other comprehensive income recognized in Total equity |  | $ 384,730 | $ (386,620)
Top of range [Member] |  |  |
Disclosure of risk management strategy related to hedge accounting [line items] |  |  |
Appreciation (depreciation) of R$ /GBP | [1] | 10.00% | 10.00%
Positions effect on equity |  | $ (39,800) | $ (80,500)
Effect on Other comprehensive income recognized in Total equity |  | $ (314,780) | $ (316,330)
[1] | Appreciation (depreciation) of US$ regard to the covered currencies.

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