Contract assets and other concession assets (Details Narrative) - BRL (R$) R$ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Contract Assets And Other Concession Assets | ||
| Interest inflation adjustments and exchange variations contract asset | R$ 820,213 | R$ 564,302 |
| Costs of expropriations recorded in contract asset | R$ 55,545 | R$ 64,047 |