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TRADE AND OTHER ACCOUNTS RECEIVABLE CURRENT, AND NON-CURRENT ACCOUNTS RECEIVABLE (Details 1) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Disclosure of financial assets that are either past due or impaired [line items] |  |  |
Total |  | $ 1,175,796 | $ 1,022,933
Gross Book Value [Member] |  |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |  |
Total |  | 1,175,796 | 1,022,933
Gross Book Value [Member] | Fully performing [Member] |  |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |  |
Total |  | 1,040,671 | 907,358
Gross Book Value [Member] | Not impaired Assets [Member] |  |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |  |
Total |  | 47,216 | 38,521
Gross Book Value [Member] | Not impaired Assets [Member] | Up to 90 days [Member] |  |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |  |
Total |  | 34,153 | 27,651
Gross Book Value [Member] | Not impaired Assets [Member] | Expired from 91 to 180 days [Member] |  |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |  |
Total |  | 10,141 | 9,303
Gross Book Value [Member] | Not impaired Assets [Member] | Between 6 and 12 months [Member] | Judicial, pre-judicial collection and protested documents [Member] |  |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |  |
Total | [1] | 2,922 | 1,567
Gross Book Value [Member] | Impaired Assets [Member] |  |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |  |
Total |  | 87,909 | 77,054
Gross Book Value [Member] | Impaired Assets [Member] | Judicial, pre-judicial collection and protested documents [Member] |  |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |  |
Total |  | 43,175 | 34,909
Gross Book Value [Member] | Impaired Assets [Member] | Debtor under pre-judicial collection process and portfolio sensitization [Member] |  |  |
Disclosure of financial assets that are either past due or impaired [line items] |  |  |
Total |  | $ 44,734 | $ 42,145
[1] | Value of this segment corresponds primarily to accounts receivable that were evaluated in their ability to recover, therefore not requiring a provision.

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