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The change in the amounts related to cash flow hedge accounting - “Platts” index recorded in shareholders’ equity on December 31, 2021, is shown as follows: (Details) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
IfrsStatementLineItems [Line Items] |  |
Cash flow hedge accounting - Platts |  | R$ 825
Income tax and social contribution on cash flow hedge accounting |  | (280)
Fair Value of cash flow accounting - Platts, net |  | R$ 545
Movement [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Cash flow hedge accounting - Platts | R$ 26,903 |
Income tax and social contribution on cash flow hedge accounting | (9,148) |
Fair Value of cash flow accounting - Platts, net | 17,755 |
Realization [Member] |  |
IfrsStatementLineItems [Line Items] |  |
Cash flow hedge accounting - Platts | (27,728) |
Income tax and social contribution on cash flow hedge accounting | 9,428 |
Fair Value of cash flow accounting - Platts, net | R$ (18,300) |

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