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Trade receivables (Details 3) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Trade Receivables |  |  |
Write-offs | R$ (685,581) | R$ (703,325) | R$ (636,366)
(Losses)/reversal with state entities - related parties | (1,208) | (903) | 2,738
(Losses)/reversal with the private sector / government entities | (41,793) | (21,103) | (209,360)
Recoveries | 170,793 | 72,411 | 60,931
Amount recorded expense (Note 31) | R$ (557,789) | R$ (652,920) | R$ (782,057)

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