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FINANCIAL DEBT - Global Programs for the issuance of Notes (Details) $ in Thousands, $ in Millions |  |  |  |  |  |  |  |  |  | 1 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 14, 2019 USD ($) | Aug. 09, 2019 USD ($) | Jul. 25, 2019 USD ($) | Jul. 18, 2019 USD ($) | Jul. 18, 2019 ARS ($) | Jul. 10, 2019 USD ($) | Mar. 28, 2019 USD ($) | Mar. 12, 2019 USD ($) | Feb. 05, 2019 series | Dec. 11, 2017 | Jul. 31, 2019 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2019 ARS ($) | Jul. 18, 2019 ARS ($) | Jun. 30, 2019 USD ($) | May 29, 2019 USD ($) | Mar. 28, 2019 ARS ($) | Mar. 12, 2019 ARS ($) | Jan. 04, 2019 USD ($) | Jan. 04, 2019 ARS ($) | Dec. 31, 2018 ARS ($) | Dec. 28, 2017 USD ($) | Jun. 01, 2016 USD ($) | Apr. 20, 2016 USD ($) | Apr. 19, 2016 USD ($)
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  | $ 289,676,000 |  |  |  | $ 300,000 |  |  |  |  |  |  |  |  |
Financial debt |  |  |  |  |  |  |  |  |  |  |  |  | $ 151,996 |  |  |  |  |  |  |  | $ 122,012 |  |  |  |
Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowing interest rate |  |  |  |  |  |  |  |  |  |  |  | 6.45% | 6.45% |  |  |  |  |  |  |  |  |  |  |  |
Series I |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount borrowed |  |  |  |  |  |  |  |  |  |  |  | $ 392,360 |  |  |  |  |  |  |  |  |  |  |  |  |
Cablevision | Term Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase of Notes | $ 3,800 |  | $ 30,400 |  |  | $ 34,200 |  |  |  |  |  | 500 |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase price |  |  |  |  |  | 997,500 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial debt |  |  |  |  |  |  |  |  |  |  |  | 465,800 | $ 27,896 |  |  |  |  |  |  |  |  |  |  |  |
Cablevision | Term Notes | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000,000 | $ 500,000
Repurchase of Notes |  |  |  |  |  | $ 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cablevision | Class A Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500,000 |  |
Investments in fixed assets and other capital expenditure |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 89,100 |  |
Quorum of Extraordinary Noteholders' Meeting (as a percent) |  |  |  |  |  |  |  |  |  | 81.86216% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cablevision | Class A Notes | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowing interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6.50% |  |
Telecom Argentina | Term Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  | $ 500,000 |  |  |  | $ 300,000 |  |  |  |  |  |  |  |  |  |
Financial debt |  |  |  |  |  |  |  |  |  |  |  | $ 405,500 | 24,283 |  |  |  |  |  |  |  |  |  |  |  |
Telecom Argentina | Term Notes | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,000,000 |  |  |
Telecom Argentina | Series I |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  | $ 400,000 |  |  |  |  |  |  |  |  |  | $ 17,148 |  |  |  |  |  |  |  |  |  |  |
Percentage of loan settlement on maturity |  |  |  | 100.00% | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount borrowed |  |  |  |  | $ 16,820 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt issuance expenses |  |  |  | $ 2,400 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial disbursement cost |  |  |  | $ 5,240 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Telecom Argentina | Series I | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowing interest rate |  |  |  | 8.00% |  |  |  |  |  |  |  |  |  | 8.00% |  |  |  |  |  |  |  |  |  |  |
Telecom Argentina | Class A Notes |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase of Notes |  | $ 34,200 | $ 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum repayment |  |  |  |  |  |  |  |  |  |  | $ 250,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nucleo |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,701 |  |  |  |  |  |  |  |  |  |  |  |
Repayment term |  |  |  |  |  |  |  |  |  |  |  | 4 years |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowing interest rate |  |  |  |  |  |  |  |  |  |  |  | 8.20% | 8.20% |  |  |  |  |  |  |  |  |  |  |  |
Financial debt |  |  |  |  |  |  |  |  |  |  |  | $ 149,890,000 | $ 1,397 |  |  |  |  |  |  |  |  |  |  |  |
Maximum notes that can be issued |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 500,000,000 | $ 3,200 |  |  |  |  |
Number of series | series |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nucleo | Series I |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount |  |  |  |  |  |  |  | $ 120,000,000 |  |  |  |  |  |  |  |  |  | $ 841 |  |  |  |  |  |  |
Repayment term |  |  |  |  |  |  |  | 60 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of loan settlement on maturity |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nucleo | Series I | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowing interest rate |  |  |  |  |  |  |  | 9.00% |  |  |  |  |  |  |  |  |  | 9.00% |  |  |  |  |  |  |
Nucleo | Series II |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment term |  |  |  |  |  |  | 60 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of loan settlement on maturity |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum notes that can be issued |  |  |  |  |  |  | $ 30,000,000 |  |  |  |  |  |  |  |  |  | $ 210 |  |  |  |  |  |  |  |
Nucleo | Series II | Fixed interest rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Borrowing interest rate |  |  |  |  |  |  | 9.00% |  |  |  |  |  |  |  |  |  | 9.00% |  |  |  |  |  |  |  |

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