Financial instruments (Details) - BRL (R$) R$ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| IfrsStatementLineItems [Line Items] | ||
| Carrying amount | R$ 40,142,347 | R$ 25,258,297 |
| Fair value | 7,320,959 | |
| Borrowings And Financing [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Carrying amount | 40,142,347 | 25,258,297 |
| Fair value | R$ 40,376,452 | R$ 26,362,590 |