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FINANCIAL RISK MANAGEMENT, Credit Risk, Cash and Financial Placement Maturities (Details) - ARS ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | [1] | Dec. 31, 2015 | [1]
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Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | $ 16,644,827 | $ 3,916,747 | [1] | $ 2,870,394 | $ 2,163,757
Other financial assets |  | 232,746 | 2,480,638 |  |  |
Receivables | [2],[3] | 3,677,548 | 3,291,495 |  |  |
Without Specified Maturity [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 14,485,525 | 2,943,101 |  |  |
Other financial assets |  | 0 | 0 |  |  |
Receivables | [2],[3] | 467 | 685 |  |  |
With Specified Maturity Over Due [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 | 0 |  |  |
Other financial assets |  | 0 | 0 |  |  |
Receivables | [2],[3] | 685,110 | 244,700 |  |  |
With Specified Maturity Over Due [Member] | Until 12-31-2017 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Other financial assets |  | 0 |  |  |  |
Receivables | [2],[3] | 133,771 |  |  |  |
With Specified Maturity Over Due [Member] | From 01-01-18 to 03-31-18 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Other financial assets |  | 0 |  |  |  |
Receivables | [2],[3] | 310 |  |  |  |
With Specified Maturity Over Due [Member] | From 04-01-18 to 06-30-18 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Other financial assets |  | 0 |  |  |  |
Receivables | [2],[3] | 4,020 |  |  |  |
With Specified Maturity Over Due [Member] | From 07-01-18 to 09-30-18 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Other financial assets |  | 0 |  |  |  |
Receivables | [2],[3] | 11,400 |  |  |  |
With Specified Maturity Over Due [Member] | From 10-01-18 to 12-31-18 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Other financial assets |  | 0 |  |  |  |
Receivables | [2],[3] | 535,609 |  |  |  |
With Specified Maturity Over Due [Member] | Until 12-31-2016 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |  |
Other financial assets |  |  | 0 |  |  |
Receivables | [2],[3] |  | 2,990 |  |  |
With Specified Maturity Over Due [Member] | From 01-01-17 to 03-31-17 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |  |
Other financial assets |  |  | 0 |  |  |
Receivables | [2],[3] |  | 202 |  |  |
With Specified Maturity Over Due [Member] | From 04-01-17 to 06-30-17 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |  |
Other financial assets |  |  | 0 |  |  |
Receivables | [2],[3] |  | 2,637 |  |  |
With Specified Maturity Over Due [Member] | From 07-01-17 to 09-30-17 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |  |
Other financial assets |  |  | 0 |  |  |
Receivables | [2],[3] |  | 18,736 |  |  |
With Specified Maturity Over Due [Member] | From 10-01-17 to 12-31-17 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |  |
Other financial assets |  |  | 0 |  |  |
Receivables | [2],[3] |  | 220,135 |  |  |
With Specified Maturity Non-Due [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 2,159,302 | 973,646 |  |  |
Other financial assets |  | 232,746 | 2,480,638 |  |  |
Receivables | [2],[3] | 2,991,971 | 3,046,110 |  |  |
With Specified Maturity Non-Due [Member] | From 01-01-19 to 03-31-19 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 2,159,302 |  |  |  |
Other financial assets |  | 219,767 |  |  |  |
Receivables | [2],[3] | 2,945,285 |  |  |  |
With Specified Maturity Non-Due [Member] | From 04-01-19 to 06-30-19 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Other financial assets |  | 1,495 |  |  |  |
Receivables | [2],[3] | 41,157 |  |  |  |
With Specified Maturity Non-Due [Member] | From 07-01-19 to 09-30-19 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Other financial assets |  | 1,495 |  |  |  |
Receivables | [2],[3] | 0 |  |  |  |
With Specified Maturity Non-Due [Member] | From 10-01-19 to 12-31-19 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Other financial assets |  | 1,229 |  |  |  |
Receivables | [2],[3] | 0 |  |  |  |
With Specified Maturity Non-Due [Member] | From 01-01-18 to 03-31-18 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 973,646 |  |  |
Other financial assets |  |  | 591,525 |  |  |
Receivables | [2],[3] |  | 3,017,756 |  |  |
With Specified Maturity Non-Due [Member] | From 04-01-18 to 06-30-18 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |  |
Other financial assets |  |  | 1,533,148 |  |  |
Receivables | [2],[3] |  | 3,703 |  |  |
With Specified Maturity Non-Due [Member] | From 07-01-18 to 09-30-18 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |  |
Other financial assets |  |  | 332,232 |  |  |
Receivables | [2],[3] |  | 3,188 |  |  |
With Specified Maturity Non-Due [Member] | From 10-01-18 to 12-31-18 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |  |
Other financial assets |  |  | 2,364 |  |  |
Receivables | [2],[3] |  | 3,839 |  |  |
With Specified Maturity Non-Due [Member] | During 2020 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Other financial assets |  | 3,357 |  |  |  |
Receivables | [2],[3] | 5,529 |  |  |  |
With Specified Maturity Non-Due [Member] | During 2021 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Other financial assets |  | 3,044 |  |  |  |
Receivables | [2],[3] | 0 |  |  |  |
With Specified Maturity Non-Due [Member] | During 2022 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Other financial assets |  | 1,911 |  |  |  |
Receivables | [2],[3] | 0 |  |  |  |
With Specified Maturity Non-Due [Member] | During 2023 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Other financial assets |  | 448 |  |  |  |
Receivables | [2],[3] | 0 |  |  |  |
With Specified Maturity Non-Due [Member] | From 2024 onwards [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 0 |  |  |  |
Other financial assets |  | 0 |  |  |  |
Receivables | [2],[3] | 0 |  |  |  |
With Specified Maturity Non-Due [Member] | During 2019 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |  |
Other financial assets |  |  | 8,436 |  |  |
Receivables | [2],[3] |  | 17,624 |  |  |
With Specified Maturity Non-Due [Member] | During 2020 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |  |
Other financial assets |  |  | 4,954 |  |  |
Receivables | [2],[3] |  | 0 |  |  |
With Specified Maturity Non-Due [Member] | During 2021 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |  |
Other financial assets |  |  | 4,494 |  |  |
Receivables | [2],[3] |  | 0 |  |  |
With Specified Maturity Non-Due [Member] | During 2022 [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |  |
Other financial assets |  |  | 2,822 |  |  |
Receivables | [2],[3] |  | 0 |  |  |
With Specified Maturity Non-Due [Member] | From 2023 onwards [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  |  | 0 |  |  |
Other financial assets |  |  | 663 |  |  |
Receivables | [2],[3] |  | 0 |  |  |
With Specified Maturity [Member] |  |  |  |  |  |
Maturities of financial assets [Abstract] |  |  |  |  |  |
Cash and cash equivalents |  | 2,159,302 | 973,646 |  |  |
Other financial assets |  | 232,746 | 2,480,638 |  |  |
Receivables | [2],[3] | $ 3,677,081 | $ 3,290,810 |  |  |
[1] | The Company has applied IFRS 15 and IFRS 9 for the first time on January 1, 2018. In accordance with the transition methods chosen, the comparative information has not been modified. See Note 4.a)
[2] | Includes financial assets recorded in trade receivables and other receivables.
[3] | The total amount of the receivables without specified maturity is recorded in Non-current assets.

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