Cash and cash equivalents (Details) - BRL (R$) R$ in Thousands |
Mar. 31, 2025 |
Dec. 31, 2024 |
Mar. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|---|---|
| Cash and Cash Equivalents [Line Items] | ||||
| Cash and banks | R$ 8,318,885 | R$ 6,596,510 | ||
| Cash and cash equivalents | R$ 9,914,505 | 9,018,818 | R$ 4,203,126 | R$ 8,345,871 |
| Cash and banks | Fixed | ||||
| Cash and Cash Equivalents [Line Items] | ||||
| Average yield p.a. % | 4.60% | |||
| Country of domicile | ||||
| Cash and Cash Equivalents [Line Items] | ||||
| Fixed-term deposits (compromised) | R$ 1,595,620 | R$ 2,422,308 | ||
| Country of domicile | Fixed-term deposits | CDI | ||||
| Cash and Cash Equivalents [Line Items] | ||||
| Percentage of basis used to calculate interest rate | 101.30% |