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6. Critical accounting estimates and judgments (Details 1) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 ARS ($)
Critical Accounting Estimates And Judgments Details Abstract |
Amount of the provisions for impairment of the trade receivables by IAS 39 | $ (458,853)
Adjustment of expected losses IFRS 9 | (82,041)
Amount of the provisions for impairment of the trade receivables by IAS 39 | $ (540,894)

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