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2. Regulatory framework (Details Narrative) - ARS ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Regulatory Framework Details Narrative Abstract      
Income recognition on account of the RTI - SE Resolution $ 0 $ 0 $ 958,289
Higher cost recognition - SE Resolution and subsequent Notes $ 0 $ 0 $ 185,436