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COMMON STOCK AND DIVIDENDS, Acquisition of treasury shares (Details) - ARS ($) $ in Thousands | Dec. 31, 2020 | Aug. 21, 2020 | Mar. 06, 2020 | Dec. 31, 2019 | Nov. 13, 2019
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Acquisition of treasury shares [Abstract] |  |  |  |  |
Maximum amount invested for shares repurchase program |  | $ 3,000,000 | $ 2,500,000 |  |
Acquisition cost of treasury shares | $ 3,715,523 |  |  | $ 994,866 |
Trading premium on treasury shares | 1,077,841 |  |  | 1,077,841 |
Treasury Shares [Member] |  |  |  |  |
Acquisition of treasury shares [Abstract] |  |  |  |  |
Acquisition cost of treasury shares | 3,715,523 |  |  | 994,866 | $ 5,507,893
Trading premium on treasury shares | $ 1,077,841 |  |  | $ 1,077,841 |

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- Definition The amount received or receivable from the issuance of the entity's shares in excess of nominal value and amounts received from other transactions involving the entity's stock or stockholders. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard -URIDate 2020-01-01 + Details
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- References No definition available. + Details
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- Definition Represents the adjustment to additional paid-in capital related to the cost of repurchasing the entity's shares. + References No definition available. + Details
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- Definition The amount of shares authorized for repurchase under a share repurchase program. + References No definition available. + Details
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