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INVESTMENT IN ASSOCIATES (Details) - ARS ($) $ in Thousands	Oct. 13, 2016	Dec. 31, 2017	Dec. 31, 2016
Investment in associates [Abstract]
Cost value		$ 624
Book value		3,065	$ 2,874
Emprendimientos de Gas del Sur S.A. (in liquidation) ("EGS")
Investment in associates [Abstract]
Cost value		116
Book value		367	357
Distribution of dividend in kind	$ 4,673
Transporte y Servicios de Gas en Uruguay S.A. ("TGU")
Investment in associates [Abstract]
Cost value		5
Book value		2,698	2,517
EGS and TGU [Member]
Investment in associates [Abstract]
Cost value		121
Book value		3,065	2,874
Gas Link S.A. ("Link")
Investment in associates [Abstract]
Cost value		503
Book value		$ 0	$ 0

X

- Definition

The amount of dividends received.

+ References

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-IssueDate 2017-01-01
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- Definition

The amount of investments in associates. [Refer: Associates [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2017-01-01
-Paragraph 10
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2017-03-01&anchor=para_10&doctype=Standard
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- Definition

The amount at the time of investment in associates carried at cost within fair value model.

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