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TAX, CIVIL AND LABOR CLAIMS AND CONTINGENT ASSETS - Civil Contingencies, Labor Contingencies and Administrative proceedings (Details) R$ in Thousands |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Aug. 01, 2013 BRL (R$) | Sep. 23, 2005 BRL (R$) item | Dec. 31, 2019 item | Dec. 31, 2020 BRL (R$)
Civil contingencies | Antitrust Legislation |  |  |  |
Contingencies |  |  |  |
Number of civil construction unions | item |  | 2 |  |
Fine for existence of cartel on gross revenues (in percentage) |  | 7.00% |  |
Fine for existence of cartel |  | R$ 245,070 |  |
Fine for existence of cartel updated by judicial accounting | R$ 417,820 |  |  |
Number of lawsuits that challenged the investigation | item |  |  | 2 |
Civil contingencies | Other Demands Of a Civil Nature |  |  |  |
Contingencies |  |  |  |
Estimated financial effect of contingent liabilities |  |  |  | R$ 316,054
Labor Contingencies |  |  |  |
Contingencies |  |  |  |
Estimated financial effect of contingent liabilities |  |  |  | R$ 153,459

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- Definition The fine for existence of cartel. + References No definition available. + Details
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- Definition The fine levied on the company and other long steel producers as a percentage of gross revenues in the year before administrative proceedings was commenced. + References No definition available. + Details
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- Definition It represents the number of civil construction unions. + References No definition available. + Details
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- Definition The amount of the estimated financial effect of contingent liabilities. [Refer: Contingent liabilities [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2020-01-01 -Paragraph 86 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2020-en-r&anchor=para_86_a&doctype=Standard -URIDate 2020-01-01 + Details
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