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21 Loans and Financing (Details 2) - BRL (R$) R$ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | R$ 3,214,249 | R$ 3,168,710
Transaction cost | (25,718) | (26,327)
Net debt | 3,188,531 | R$ 3,142,383
Noncurrent Installments [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 2,493,421 |
Transaction cost | (22,567) |
Net debt | 2,470,854 |
Noncurrent Installments [member] | 2021 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 328,538 |
Transaction cost | (2,054) |
Net debt | 326,484 |
Noncurrent Installments [member] | 2022 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 202,249 |
Transaction cost | (1,732) |
Net debt | 200,517 |
Noncurrent Installments [member] | 2023 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 337,272 |
Transaction cost | (1,738) |
Net debt | 335,534 |
Noncurrent Installments [member] | 2024 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 195,764 |
Transaction cost | (1,735) |
Net debt | 194,029 |
Noncurrent Installments [member] | 2025 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 195,846 |
Transaction cost | (1,738) |
Net debt | 194,108 |
Noncurrent Installments [member] | After 2026 [member] |  |
Disclosure of detailed information about borrowings [line items] |  |
Gross debt | 1,233,752 |
Transaction cost | (13,570) |
Net debt | R$ 1,220,182 |

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