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Schedule of direct equity interests in subsidiaries, joint ventures, joint operations, associates and other investments (Details) - BRL (R$) R$ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
IfrsStatementLineItems [Line Items] |  |  |  |
Assets | R$ 79,379,103 | R$ 63,002,149 |  |
Equity | 23,374,389 | 11,251,505 | R$ 11,361,932 | R$ 10,013,440
Net income for the year | 13,595,621 | 4,292,618 | R$ 2,244,511 |
Total Investments | 4,011,828 | 3,695,780 |  |
Panatlantica [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Equity | 190,321 | 59,879 |  |
Classified At Fair Value Through Profit Or Loss [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Equity | 190,321 | 59,879 |  |
Eliminations [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Net income for the year | (41,568) | (30,856) |  |
Other Investment [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Equity | 27,324 | 279 |  |
Net income for the year | 18,410 | (9,967) |  |
Total Other Investment [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Equity | 27,324 | 279 |  |
Net income for the year | 18,410 | (9,967) |  |
Total Investiments [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Equity | 3,849,647 | 3,535,906 |  |
Total Equity In Results Of Affiliated Companies [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Net income for the year | 182,504 | 71,755 |  |
Investiments Properties [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Equity | 162,181 | 159,874 |  |
Arvedi Metalfer Do Brasil [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Assets | 46,739 | 40,528 |  |
Liabilities | 25,198 | 32,490 |  |
Equity | 21,541 | 8,038 |  |
Net income for the year | 3,265 | (6,765) |  |
Associates [member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Assets | 46,739 | 40,528 |  |
Liabilities | 25,198 | 32,490 |  |
Equity | 21,541 | 8,038 |  |
Net income for the year | 3,265 | (6,765) |  |
M R S Logistica S A 1 [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Assets | 5,046,851 | 4,175,249 |  |
Liabilities | 3,240,312 | 2,567,882 |  |
Equity | 1,806,539 | 1,607,367 |  |
Net income for the year | 260,622 | 160,371 |  |
Fair Value M R S Logistica S A [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Equity | 410,144 | 421,888 |  |
Net income for the year | (11,747) | (11,747) |  |
Transnordestina Logistica S A 1 [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Assets | 4,885,994 | 4,657,691 |  |
Liabilities | 3,771,760 | 3,497,587 |  |
Equity | 1,114,234 | 1,160,104 |  |
Net income for the year | (45,870) | (28,952) |  |
Fair Value Transnordestina [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Equity | 271,116 | 271,116 |  |
Equimac S A 1 [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Assets | 20,155 | 7,536 |  |
Liabilities | 11,727 | 301 |  |
Equity | 8,428 | 7,235 |  |
Net income for the year | (608) | (329) |  |
Joint Venture And Joint Operation [Member] |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |
Assets | 9,953,000 | 8,840,476 |  |
Liabilities | 7,023,799 | 6,065,770 |  |
Equity | 3,610,461 | 3,467,710 |  |
Net income for the year | R$ 202,397 | R$ 119,343 |  |

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