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20. PROVISION FOR TAX, SOCIAL SECURITY, LABOR, CIVIL, ENVIRONMENTAL RISKS AND JUDICIAL DEPOSITS (Details Narrative) - BRL (R$) R$ in Thousands |  |  |  | 1 Months Ended |
--- | --- | --- | --- | --- | ---
Dec. 27, 2018 | Aug. 27, 2017 | Apr. 08, 2013 | May 31, 2014 | Jan. 31, 2014 | Dec. 31, 2020
ProvisionForTaxSocialSecurityLaborCivilEnvironmentalRisksAndJudicialDepositsLineItems [Line Items] |  |  |  |  |  |
Penalty fee |  | R$ 25,000 |  |  |  |
Updated amount |  |  |  |  |  | R$ 4,542,786
Municipality of volta redonda [member] |  |  |  |  |  |
ProvisionForTaxSocialSecurityLaborCivilEnvironmentalRisksAndJudicialDepositsLineItems [Line Items] |  |  |  |  |  |
Penalty fee |  |  | R$ 35,000 |  |  |
MVR [member] | New agreement [member] |  |  |  |  |  |
ProvisionForTaxSocialSecurityLaborCivilEnvironmentalRisksAndJudicialDepositsLineItems [Line Items] |  |  |  |  |  |
Additional investment | R$ 21,000 |  |  |  |  |
Percentage of allocated to services of environmental interest | 30.00% |  |  |  |  |
Actual disbursement | R$ 25,000 |  |  |  |  |
INEA [member] |  |  |  |  |  |
ProvisionForTaxSocialSecurityLaborCivilEnvironmentalRisksAndJudicialDepositsLineItems [Line Items] |  |  |  |  |  |
Penalty fee |  |  |  | R$ 42,000 | R$ 35,000 |

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