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INCOME TAX AND DEFERRED TAX, Component of Net Deferred Tax Assets and Liabilities (Details) - ARS ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | $ (416,716) |
Deferred tax assets (liability), end of year | (272,862) | $ (416,716)
Deferred Tax Assets [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 387,614 | 136,813
Charge in results | (83,983) | 250,801
Deferred tax assets (liability), end of year | 303,631 | 387,614
Deferred Tax Assets [Member] | Allowance for Doubtful Accounts [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 6,672 | 1,218
Charge in results | (6,672) | 5,454
Deferred tax assets (liability), end of year | 0 | 6,672
Deferred Tax Assets [Member] | Tax Credits Discounted Value Loss [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 1,528 | 5,261
Charge in results | (1,528) | (3,733)
Deferred tax assets (liability), end of year | 0 | 1,528
Deferred Tax Assets [Member] | Account Receivables Discounted Value [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 38 | 38
Charge in results | (38) | 0
Deferred tax assets (liability), end of year | 0 | 38
Deferred Tax Assets [Member] | Provisions for Legal Claims and Other Provisions [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 98,206 | 71,360
Charge in results | (21,784) | 26,846
Deferred tax assets (liability), end of year | 76,422 | 98,206
Deferred Tax Assets [Member] | Financial Lease [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 281,170 | 0
Charge in results | (53,961) | 281,170
Deferred tax assets (liability), end of year | 227,209 | 281,170
Deferred Tax Assets [Member] | Income Tax Loss Carryforward [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 0 | 58,936
Charge in results | 0 | (58,936)
Deferred tax assets (liability), end of year | 0 | 0
Deferred Tax Liabilities [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | (804,330) | (546,947)
Charge in results | 227,837 | (257,383)
Deferred tax assets (liability), end of year | (576,493) | (804,330)
Deferred Tax Liabilities [Member] | Deferred Sales [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 46 | 46
Charge in results | (46) | 0
Deferred tax assets (liability), end of year | 0 | 46
Deferred Tax Liabilities [Member] | Loans [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | (4,752) | (6,652)
Charge in results | 2,272 | 1,900
Deferred tax assets (liability), end of year | (2,480) | (4,752)
Deferred Tax Liabilities [Member] | Property, Plant and Equipment [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | (791,823) | (539,622)
Charge in results | 229,318 | (252,201)
Deferred tax assets (liability), end of year | (562,505) | (791,823)
Deferred Tax Liabilities [Member] | Cash and Cash Equivalents [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | (7,801) | (719)
Charge in results | (3,350) | (7,082)
Deferred tax assets (liability), end of year | (11,151) | (7,801)
Deferred Tax Liabilities [Member] | Inventories [Member] |  |
Components of Net Deferred Tax Assets and Liabilities [abstract] |  |
Deferred tax assets (liability), beginning of year | 0 | 0
Charge in results | (357) | 0
Deferred tax assets (liability), end of year | $ (357) | $ 0

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