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ASSETS AND LIABILITIES IN FORREIGN CURRENCY (Details) $ in Thousands, $ in Thousands | Dec. 31, 2020 ARS ($) $ / $ | Dec. 31, 2020 USD ($) $ / $ | Dec. 31, 2019 ARS ($) | Dec. 31, 2019 USD ($)
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CURRENT ASSETS [Abstract] |  |  |  |  |
Total current assets |  | $ 13,613,108 |  | $ 24,546,366 |
NON-CURRENT ASSETS [Abstract] |  |  |  |  |
Total non-current assets |  | 13,766,615 |  | 17,707 |
Total assets |  | 27,379,723 |  | 24,564,073 |
CURRENT LIABILITIES [Abstract] |  |  |  |  |
Total current liabilities |  | 5,034,005 |  | 9,062,626 |
NON CURRENT LIABILITIES [Abstract] |  |  |  |  |
Total non-current liabilities |  | 42,932,658 |  | 43,375,367 |
TOTAL LIABILITIES |  | 47,966,663 |  | 52,437,993 |
Trade Payables [Member] |  |  |  |  |
CURRENT LIABILITIES [Abstract] |  |  |  |  |
Total current liabilities |  | 2,803,596 |  | 5,600,240 |
Loans [Member] |  |  |  |  |
CURRENT LIABILITIES [Abstract] |  |  |  |  |
Total current liabilities |  | 936,766 |  | 2,344,459 |
Loans [Member] |  |  |  |  |
NON CURRENT LIABILITIES [Abstract] |  |  |  |  |
Total non-current liabilities |  | 42,932,658 |  | 43,375,367 |
Cash and Cash Equivalents [Member] |  |  |  |  |
CURRENT ASSETS [Abstract] |  |  |  |  |
Total current assets |  | 4,653,406 |  | 13,294,402 |
Derivative Financial Instruments [Member] |  |  |  |  |
CURRENT ASSETS [Abstract] |  |  |  |  |
Total current assets |  |  |  | 373,058 |
Other Financial Assets at Amortized Cost [Member] |  |  |  |  |
CURRENT ASSETS [Abstract] |  |  |  |  |
Total current assets |  | 18,319 |  | 1,421,253 |
NON-CURRENT ASSETS [Abstract] |  |  |  |  |
Total non-current assets |  | 13,759,012 |  | 7,356 |
Trade Receivables [Member] |  |  |  |  |
CURRENT ASSETS [Abstract] |  |  |  |  |
Total current assets |  | 6,147,453 |  | 8,813,414 |
Other Receivables [Member] |  |  |  |  |
CURRENT ASSETS [Abstract] |  |  |  |  |
Total current assets |  | 673,142 |  | 644,239 |
NON-CURRENT ASSETS [Abstract] |  |  |  |  |
Total non-current assets |  | 7,603 |  | 10,351 |
Foreign Currency [Member] |  |  |  |  |
CURRENT ASSETS [Abstract] |  |  |  |  |
Total current assets |  | 8,090,640 | $ 96,375 | 17,013,102 | $ 209,360
NON-CURRENT ASSETS [Abstract] |  |  |  |  |
Total non-current assets |  | 13,755,917 | 163,858 | 0 | 0
Total assets |  | 21,846,557 | 260,233 | 17,013,102 | 209,360
CURRENT LIABILITIES [Abstract] |  |  |  |  |
Total current liabilities |  | 2,765,346 | 32,862 | 7,284,222 | 89,339
NON CURRENT LIABILITIES [Abstract] |  |  |  |  |
Total non-current liabilities |  | 42,932,658 | 510,192 | 44,491,754 | 545,679
TOTAL LIABILITIES |  | 45,698,004 | 543,054 | 51,775,976 | 635,018
Foreign Currency [Member] | Trade Payables [Member] |  |  |  |  |
CURRENT LIABILITIES [Abstract] |  |  |  |  |
Total current liabilities |  | $ 1,828,580 | $ 21,730 | 4,859,055 | 59,595
NON CURRENT LIABILITIES [Abstract] |  |  |  |  |
Exchange rate (in Ps. per dollars) | $ / $ | [1] | 84.150 | 84.150 |  |
Foreign Currency [Member] | Loans [Member] |  |  |  |  |
CURRENT LIABILITIES [Abstract] |  |  |  |  |
Total current liabilities |  | $ 936,766 | $ 11,132 | 2,344,459 | 28,754
NON CURRENT LIABILITIES [Abstract] |  |  |  |  |
Exchange rate (in Ps. per dollars) | $ / $ | [1] | 84.150 | 84.150 |  |
Foreign Currency [Member] | Loans [Member] |  |  |  |  |
NON CURRENT LIABILITIES [Abstract] |  |  |  |  |
Total non-current liabilities |  | $ 42,932,658 | $ 510,192 | 43,375,367 | 531,987
Exchange rate (in Ps. per dollars) | $ / $ | [1] | 84.150 | 84.150 |  |
Foreign Currency [Member] | Contract Liabilities [Member] |  |  |  |  |
CURRENT LIABILITIES [Abstract] |  |  |  |  |
Total current liabilities |  | $ 0 | $ 0 | 80,708 | 990
NON CURRENT LIABILITIES [Abstract] |  |  |  |  |
Total non-current liabilities |  | $ 0 | $ 0 | 1,116,387 | 13,692
Exchange rate (in Ps. per dollars) | $ / $ | [1] | 84.150 | 84.150 |  |
Foreign Currency [Member] | Cash and Cash Equivalents [Member] |  |  |  |  |
CURRENT ASSETS [Abstract] |  |  |  |  |
Total current assets |  | $ 3,815,863 | $ 45,454 | 11,695,273 | 143,920
NON CURRENT LIABILITIES [Abstract] |  |  |  |  |
Exchange rate (in Ps. per dollars) | $ / $ | [2] | 83.950 | 83.950 |  |
Foreign Currency [Member] | Derivative Financial Instruments [Member] |  |  |  |  |
CURRENT ASSETS [Abstract] |  |  |  |  |
Total current assets |  | $ 0 | $ 0 | 373,058 | 4,591
NON CURRENT LIABILITIES [Abstract] |  |  |  |  |
Exchange rate (in Ps. per dollars) | $ / $ | [2] | 83.950 | 83.950 |  |
Foreign Currency [Member] | Other Financial Assets at Amortized Cost [Member] |  |  |  |  |
CURRENT ASSETS [Abstract] |  |  |  |  |
Total current assets |  | $ 15,279 | $ 182 | 1,416,686 | 17,433
NON-CURRENT ASSETS [Abstract] |  |  |  |  |
Total non-current assets |  | $ 13,755,917 | $ 163,858 | 0 | 0
NON CURRENT LIABILITIES [Abstract] |  |  |  |  |
Exchange rate (in Ps. per dollars) | $ / $ | [2] | 83.950 | 83.950 |  |
Foreign Currency [Member] | Other Financial Assets at Fair Value Through Profit or Loss [Member] |  |  |  |  |
CURRENT ASSETS [Abstract] |  |  |  |  |
Total current assets |  | $ 2,120,788 | $ 25,263 | 0 | 0
NON CURRENT LIABILITIES [Abstract] |  |  |  |  |
Exchange rate (in Ps. per dollars) | $ / $ | [2] | 83.950 | 83.950 |  |
Foreign Currency [Member] | Trade Receivables [Member] |  |  |  |  |
CURRENT ASSETS [Abstract] |  |  |  |  |
Total current assets |  | $ 1,952,845 | $ 23,262 | 3,501,675 | 43,091
NON CURRENT LIABILITIES [Abstract] |  |  |  |  |
Exchange rate (in Ps. per dollars) | $ / $ | [2] | 83.950 | 83.950 |  |
Foreign Currency [Member] | Other Receivables [Member] |  |  |  |  |
CURRENT ASSETS [Abstract] |  |  |  |  |
Total current assets |  | $ 185,865 | $ 2,214 | $ 26,410 | $ 325
NON CURRENT LIABILITIES [Abstract] |  |  |  |  |
Exchange rate (in Ps. per dollars) | $ / $ | [2] | 83.950 | 83.950 |  |
[1] | Sell exchange rate at the end of fiscal year
[2] | Buy exchange rate at the end of fiscal year

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