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21 Loans and Financing (Details 2) - BRL (R$) R$ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | R$ 3,168,710 | R$ 4,079,383
Transaction cost | (26,327) | (32,076)
Net debt | 3,142,383 | R$ 4,047,307
Noncurrent Installments [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 2,909,950 |
Transaction cost | (23,088) |
Net debt | 2,886,862 |
Noncurrent Installments [Member] | 2021 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 706,500 |
Transaction cost | (2,781) |
Net debt | 703,719 |
Noncurrent Installments [Member] | 2022 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 319,580 |
Transaction cost | (2,061) |
Net debt | 317,519 |
Noncurrent Installments [Member] | 2023 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 191,584 |
Transaction cost | (1,618) |
Net debt | 189,966 |
Noncurrent Installments [Member] | 2024 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 295,366 |
Transaction cost | (1,625) |
Net debt | 293,741 |
Noncurrent Installments [Member] | 2025 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 185,009 |
Transaction cost | (1,622) |
Net debt | 183,387 |
Noncurrent Installments [Member] | After 2025 [Member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 1,211,911 |
Transaction cost | (13,381) |
Net debt | R$ 1,198,530 |

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