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ACQUISITION OF COMPANIES AND CORPORATE REORGANIZATION PROCESSES - Acquisition of companies, holders of radioelectric spectrum (Details) $ in Millions, $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2018 ARS ($) | Dec. 31, 2017 ARS ($) | Jun. 30, 2016 USD ($)
ACQUISITION OF COMPANIES AND CORPORATE REORGANIZATION PROCESSES |  |  |  |
Goodwill |  | $ 120,449.0 | $ 31,954.0 |
Cablevision and Nextel | Fibercomm S.A. and Gridley Investments S.A. |  |  |  |
ACQUISITION OF COMPANIES AND CORPORATE REORGANIZATION PROCESSES |  |  |  |
Acquisition percentage |  |  |  | 100.00%
Total purchase price |  | 3,978.0 |  | $ 138.2
Acquisition cost allocation (as a percent) | 100.00% |  |  |
Goodwill |  | $ 1,475.9 |  |
Cablevision Holding S.A. |  |  |  |
ACQUISITION OF COMPANIES AND CORPORATE REORGANIZATION PROCESSES |  |  |  |
Acquisition percentage |  |  | 100.00% |
Cablevision Holding S.A. | Fibercomm S.A. and Gridley Investments S.A. |  |  |  |
ACQUISITION OF COMPANIES AND CORPORATE REORGANIZATION PROCESSES |  |  |  |
Acquisition percentage |  |  |  | 3.00%
Acquisition cost allocation (as a percent) | 3.00% |  |  |
Nextel | Fibercomm S.A. and Gridley Investments S.A. |  |  |  |
ACQUISITION OF COMPANIES AND CORPORATE REORGANIZATION PROCESSES |  |  |  |
Acquisition percentage |  |  |  | 97.00%
Acquisition cost allocation (as a percent) | 97.00% |  |  |
Nextel | WX Telecommunications LLC and Greenmax Telecommunications LLC |  |  |  |
ACQUISITION OF COMPANIES AND CORPORATE REORGANIZATION PROCESSES |  |  |  |
Acquisition percentage |  |  |  | 100.00%
Fibercomm S.A. and Gridley Investments S.A. | Trixco S.A. |  |  |  |
ACQUISITION OF COMPANIES AND CORPORATE REORGANIZATION PROCESSES |  |  |  |
Acquisition percentage |  |  |  | 100.00%

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- Definition The fair value, at acquisition date, of the consideration transferred in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2018-01-01 -Paragraph B64 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2018-03-01&anchor=para_B64_f&doctype=Appendix&seq=2 -URIDate 2018-03-16 + Details
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