Segment information - Adjustment to EBITDA (Details) - BRL (R$) |
3 Months Ended | 6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Notes and other explanatory information [abstract] | |||||
| Gain on fair value adjustments (Note 7) | R$ 1,157,728,000 | R$ (73,248,000) | R$ 1,516,458,000 | ||
| Loss from associates and joint ventures | R$ (5,224,000) | R$ (172,005,000) | (25,596,000) | (189,082,000) | |
| Impairment loss (reversal of impairment loss) recognised in profit or loss | (76,066,000) | R$ 88,871,000 | |||
| Income (loss) on disposal and write-off of non-current assets | 188,297,000 | (48,033,000) | |||
| (Provision)/Reversals for losses on ICMS credits (note 13.1) | 3,856,000 | (83,940,000) | |||
| Expenses on Asset Acquisition and Business Combinations (2) | (59,211,000) | (9,197,000) | |||
| Restructuring expenses (3) | (44,441,000) | (50,000) | |||
| Other | (2,363,000) | (2,711,000) | |||
| Adjustments to EBITDA | R$ 1,218,270,000 | R$ (482,327,000) | |||