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FINANCIAL RISK MANAGEMENT, Foreign Exchange Risk (Details) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Foreign exchange risk [Abstract] |  |  |
Number of working days to settle commitment in foreign exchange market | 5 days |  |
Percentage of principal amount maturing in maximum period | 40.00% |  |
Average life for refinanced new external indebtedness | 2 years |  |
Foreign Exchange Risk [Member] |  |  |
Foreign exchange risk [Abstract] |  |  |
Percentage of funds denominated in US dollars to mitigate foreign exchange risk | 96.00% |  |
Percentage appreciation (depreciation) of US Dollar against Argentine Peso | 10.00% |  |
Pretax income | $ 2,533,781 | $ 3,491,865 |
U.S. Dollars [Member] | Liquids Production and Commercialization [Member] | Foreign Exchange Risk [Member] |  |  |
Foreign exchange risk [Abstract] |  |  |
Percentage of revenue | 87.00% | 87.00% |
Argentine Pesos [Member] | Liquids Production and Commercialization [Member] | Foreign Exchange Risk [Member] |  |  |
Foreign exchange risk [Abstract] |  |  |
Percentage of revenue | 50.00% | 53.00% | 59.00%

X
- Definition The percentage of the entity's revenue. [Refer: Revenue] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 34 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_34&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The average life for refinanced new external indebtedness. + References No definition available. + Details
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- Definition Refers to decrease in the amount of profit (loss) due to foreign exchange transaction. + References No definition available. + Details
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- References No definition available. + Details
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- Definition The number of working days to settle commitment in foreign exchange market. + References No definition available. + Details
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- Definition Refers to the percentage increase (decrease) in US dollar rate against argentine peso. + References No definition available. + Details
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- Definition Refers to the percentage of funds denominated in US dollars to mitigate the foreign exchange risk. + References No definition available. + Details
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- Definition The percentage of principal amount maturing in period indicated. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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