Recoverable taxes - Summary (Details) - BRL (R$) R$ in Thousands |
Mar. 31, 2026 |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|---|
| Disclosure of Tax Receivables and Payables [Line Items] | |||
| IRPJ/CSLL – prepayments and withheld taxes | R$ 773,577 | R$ 706,048 | |
| PIS/COFINS – on acquisitions of property, plant and equipment (1) | 106,960 | 128,631 | |
| PIS/COFINS – operations | 681,034 | 567,872 | |
| PIS/COFINS – exclusions from ICMS (2) | 311,036 | 324,819 | |
| ICMS – on acquisitions of property, plant and equipment (3) | 447,261 | 472,382 | |
| ICMS – operations (4) | 1,872,231 | 1,889,151 | |
| Reintegra program (5) | 65,808 | 58,790 | |
| Other taxes and contributions | 122,168 | 119,406 | |
| Provision for loss on ICMS credits (6) | (1,761,902) | (1,775,113) | R$ (1,581,961) |
| Tax Assets | 2,618,173 | 2,491,986 | |
| Recoverable taxes | 1,673,493 | 1,546,287 | |
| Recoverable taxes | R$ 944,680 | R$ 945,699 |