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FINANCIAL DEBT - IFC and IIC loans (Details) $ in Millions, $ in Millions | Sep. 22, 2020 USD ($) | Apr. 25, 2019 USD ($) installment | Mar. 24, 2019 installment | Mar. 18, 2019 USD ($) installment | Mar. 04, 2019 USD ($) installment | Apr. 07, 2017 USD ($) installment | Oct. 05, 2016 USD ($) installment | Dec. 31, 2020 USD ($) | Dec. 31, 2020 ARS ($) | Dec. 31, 2019 ARS ($)
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Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Financial debt | $ |  |  |  |  |  |  |  |  | $ 200,200 | $ 206,928
Bank loans - IFC Loan |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Principal amount | $ |  | $ 20.0 |  |  | $ 450.0 |  |  |  |  |
Half-yearly installments | installment |  | 8 | 8 |  |  |  |  |  |  |
Gross proceeds | $ |  |  |  | $ 290.0 |  |  |  |  |  |
Loan proceeds | $ |  |  |  | 285.5 |  |  |  |  |  |
Debt issuance cost | $ |  |  |  | 4.5 |  |  |  |  |  |
Loss on financial debt renegotiation | $ | $ 525.0 |  |  |  |  |  |  |  |  |
Debt amortization deferred, Percentage | 85.00% |  |  |  |  |  |  |  |  |
Percentage of deb prepaid | 15.00% |  |  |  |  |  |  |  |  |
Financial debt |  |  |  |  |  |  |  | $ 487.3 | $ 41,006 |
Bank loans - IFC Loan | LIBOR |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Applicable margin |  | 4.85% |  |  |  |  |  |  |  |
Bank loans - IFC Loan | Tranche A |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Half-yearly installments | installment |  |  |  |  | 8 |  |  |  |  |
Bank loans - IFC Loan | Tranche A | LIBOR |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Applicable margin |  |  |  |  | 4.85% |  |  |  |  |
Bank loans - IFC Loan | Tranche B-1 |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Half-yearly installments | installment |  |  |  |  | 6 |  |  |  |  |
Bank loans - IFC Loan | Tranche B-1 | LIBOR |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Applicable margin |  |  |  |  | 4.60% |  |  |  |  |
Bank loans - IFC Loan | Tranche B-2 |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Half-yearly installments | installment |  |  |  |  | 8 |  |  |  |  |
Bank loans - IFC Loan | Tranche B-2 | LIBOR |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Applicable margin |  |  |  |  | 4.85% |  |  |  |  |
Bank loans - IFC Loan | Tranche B-3 |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Half-yearly installments | installment |  |  |  |  | 6 |  |  |  |  |
Bank loans - IFC Loan | Tranche B-3 | LIBOR |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Applicable margin |  |  |  |  | 4.60% |  |  |  |  |
Bank loans - IFC Loan | Tranche B-4 |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Half-yearly installments | installment |  |  |  |  | 8 |  |  |  |  |
Bank loans - IFC Loan | Tranche B-4 | LIBOR |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Applicable margin |  |  |  |  | 4.85% |  |  |  |  |
Bank loans - IFC Loan | Tranche One |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Principal amount | $ |  |  |  | $ 160.0 |  |  |  |  |  |
Half-yearly installments | installment |  |  |  | 8 |  |  |  |  |  |
Bank loans - IFC Loan | Tranche One | LIBOR |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Applicable margin |  |  |  | 4.85% |  |  |  |  |  |
Bank loans - IFC Loan | Tranche Two |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Principal amount | $ |  |  |  | $ 130.0 |  |  |  |  |  |
Half-yearly installments | installment |  |  |  | 6 |  |  |  |  |  |
Bank loans - IFC Loan | Tranche Two | LIBOR |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Applicable margin |  |  |  | 4.60% |  |  |  |  |  |
Bank loans - IFC Loan | Minimum |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Deferred debt amortization period | 24 months |  |  |  |  |  |  |  |  |
Bank loans - IFC Loan | Maximum |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Deferred debt amortization period | 48 months |  |  |  |  |  |  |  |  |
Bank loans - IFC Loan | Personal |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Principal amount | $ |  |  |  |  |  |  | $ 400.0 |  |  |
Borrowing term |  |  |  |  |  |  | 6 years |  |  |
Half-yearly installments | installment |  |  |  |  |  |  | 8 |  |  |
Bank loans - IFC Loan | Personal | LIBOR |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Applicable margin |  |  |  |  |  |  | 4.00% |  |  |
IIC Loan | Personal |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Principal amount | $ |  |  |  |  |  | $ 100.0 |  |  |  |
Half-yearly installments | installment |  |  |  |  |  | 8 |  |  |  |
IIC Loan | Personal | LIBOR |  |  |  |  |  |  |  |  |  |
Current and non-current financial debt |  |  |  |  |  |  |  |  |  |
Applicable margin |  |  |  |  |  | 4.00% |  |  |  |

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