Segment information - Adjustment to EBITDA (Details) - BRL (R$) R$ in Thousands |
3 Months Ended | 9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
Dec. 31, 2024 |
|
| Notes and other explanatory information [abstract] | |||||
| Loss from associates and joint ventures | R$ (79,268) | R$ (11,328) | R$ (268,350) | R$ (14,842) | |
| Impairment loss (reversal of impairment loss) recognised in profit or loss | 88,871 | ||||
| Income from disposal and write-off of property, plant and equipment and biological assets | 183,356 | 132,012 | |||
| Provision/(reversals) for losses on ICMS credits | 151,669 | 47,807 | |||
| Other | 16,640 | 1,230 | |||
| Adjustments to EBITDA | (823,557) | 321,036 | |||
| Gain (loss) on fair value adjustments | (73,248) | 539,003 | R$ 1,431,530 | ||
| Expenses on Asset Acquisition and Business Combinations | R$ (41,423) | R$ (22,076) | |||