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DETAIL OF SIGNIFICANT STATEMENT OF FINANCIAL POSITION AND STATEMENT OF COMPREHENSIVE INCOME CAPTIONS, Advances from Customers (Details) - ARS ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
--- | --- | ---
Current [Abstract] |  |
Advances from customers | $ 81,004 | $ 37,594
Non-current [Abstract] |  |
Advances from customers | 298,169 | 313,686
Aluar Aluminio Argentino S.A.C.I. ("Aluar") [Member] |  |
Current [Abstract] |  |
Advances from customers | 6,742 | 6,742
Non-current [Abstract] |  |
Advances from customers | 138,238 | 144,980
Advances From Customers -UT- [Member] |  |
Current [Abstract] |  |
Advances from customers | 59,868 | 0
Non-current [Abstract] |  |
Advances from customers | 0 | 0
Total Austral S.A. ("Total Austral") [Member] |  |
Current [Abstract] |  |
Advances from customers | 0 | 795
Non-current [Abstract] |  |
Advances from customers | 0 | 0
YPF S.A. ("YPF") [Member] |  |
Current [Abstract] |  |
Advances from customers | 2,526 | 2,434
Non-current [Abstract] |  |
Advances from customers | 4,517 | 6,947
Pan American Sur S.A. ("PAS") [Member] |  |
Current [Abstract] |  |
Advances from customers | 0 | 530
Non-current [Abstract] |  |
Advances from customers | 0 | 0
Pan American Energy L.L.C. ("PAE") [Member] |  |
Current [Abstract] |  |
Advances from customers | 2,182 | 2,182
Non-current [Abstract] |  |
Advances from customers | 56,805 | 58,976
PBB Polisur S.A. ("Polisur") [Member] |  |
Current [Abstract] |  |
Advances from customers | 5,115 | 3,905
Non-current [Abstract] |  |
Advances from customers | 94,804 | 98,531
Otros [Member] |  |
Current [Abstract] |  |
Advances from customers | 4,571 | 21,006
Non-current [Abstract] |  |
Advances from customers | $ 3,805 | $ 4,252

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- Definition The amount of current payments received for goods or services to be provided in the future. [Refer: Advances received] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The non-current amount of payments received for goods or services to be provided in the future. [Refer: Advances received] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard -URIDate 2017-03-09 + Details
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