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Equity instruments (Details 1) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Equity Instruments |  |  |
Balance at the beginning of the fiscal year | R$ 2,968,823 | R$ 3,422,154 | R$ 2,605,279
Additions/Disposals (Net) | 1,893,570 | (453,331) | 816,875
Balance at the end of the fiscal year | R$ 4,862,393 | R$ 2,968,823 | R$ 3,422,154

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