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10. BASIS OF CONSOLIDATION AND INVESTMENTS IN SUBSIDIARIES AND AFFILIATES (Details 1) - BRL (R$) R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Assets | R$ 63,002,149 | R$ 50,869,276 |  |
Liabilities | 344,488 | 419,894 |  |
Shareholders' equity | 11,251,505 | 11,361,932 | R$ 10,013,440 | R$ 8,288,229
Profit /(Loss) for the period | 4,292,618 | 2,244,511 | R$ 5,200,583 |
Panatlantica [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Shareholders' equity | 59,879 | 47,300 |  |
Classified at fair value through profit or loss [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Shareholders' equity | 59,879 | 47,300 |  |
Eliminations [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Profit /(Loss) for the period | (30,856) | (38,219) |  |
Other [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Shareholders' equity | 279 | 157 |  |
Profit /(Loss) for the period | (9,967) | 171 |  |
Total Other Investment [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Shareholders' equity | 279 | 157 |  |
Profit /(Loss) for the period | (9,967) | 171 |  |
Total investments in affillated companies [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Shareholders' equity | 3,535,906 | 3,484,974 |  |
Total Equity in results of affillated companies [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Profit /(Loss) for the period | 71,755 | 125,715 |  |
Investments properties [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Shareholders' equity | 159,874 | 101,195 |  |
Total investments [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Shareholders' equity | 3,695,780 | 3,584,169 |  |
Arvedi Metalfer do Brasil S.A. [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Assets | 40,528 | 44,435 |  |
Liabilities | 32,490 | 31,712 |  |
Shareholders' equity | 8,038 | 12,723 |  |
Profit /(Loss) for the period | (6,765) | (1,682) |  |
Associates [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Assets | 40,528 | 44,435 |  |
Liabilities | 32,490 | 31,712 |  |
Shareholders' equity | 8,038 | 12,723 |  |
Profit /(Loss) for the period | (6,765) | (1,682) |  |
Equimac S.A [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Profit /(Loss) for the period | (329) |  |  |
MRS Logistica S.A. [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Assets | 4,175,249 | 4,145,205 |  |
Liabilities | 2,567,882 | 2,616,218 |  |
Shareholders' equity | 1,607,367 | 1,528,987 |  |
Profit /(Loss) for the period | 160,371 | 187,597 |  |
Fair Value - MRS Logistica S.A. [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Shareholders' equity | 421,888 | 433,635 |  |
Profit /(Loss) for the period | (11,747) | (11,747) |  |
CSBI - Companhia Brasileira de Servicos de Infraestrutura [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Assets |  |  |  |
Liabilities |  |  |  |
Profit /(Loss) for the period |  | 6,665 |  |
Transnordestina logistica s.a [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Assets | 4,657,691 | 4,398,434 |  |
Liabilities | 3,497,587 | 3,209,378 |  |
Shareholders' equity | 1,160,104 | 1,189,056 |  |
Profit /(Loss) for the period | (28,952) | (17,100) |  |
Fair Value - Transnordestina [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Assets |  |  |  |
Liabilities |  |  |  |
Shareholders' equity | 271,116 | 271,116 |  |
Profit /(Loss) for the period |  |  |  |
Equimac S.A [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Assets | 7,536 |  |  |
Liabilities | 301 |  |  |
Shareholders' equity | 7,235 |  |  |
Joint-venture and Joint-operation [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Assets | 8,840,476 | 8,543,639 |  |
Liabilities | 6,065,770 | 5,825,596 |  |
Shareholders' equity | 3,467,710 | 3,422,794 |  |
Profit /(Loss) for the period | 119,343 | 165,415 |  |
Equimac S.A [member] |  |  |  |
BasisOfConsolidationAndInvestmentsInSubsidiariesAndAffiliatesLineItems [Line Items] |  |  |  |
Assets | 15,072 |  |  |
Liabilities |  |  |  |
Shareholders' equity | R$ 14,470 |  |  |
Profit /(Loss) for the period |  |  |  |

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