Other assets (Details) - BRL (R$) R$ in Thousands |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| IfrsStatementLineItems [Line Items] | ||
| Other assets | R$ 326,756 | R$ 276,251 |
| Current portion | (297,264) | (246,346) |
| Non-current portion | 29,492 | 29,905 |
| Advance To Employees [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Other assets | 7,547 | 3,819 |
| Advances To Suppliers [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Other assets | 61,013 | 48,008 |
| Amounts Receivable From T I M Brasil [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Other assets | 23,183 | 23,260 |
| Amounts Receivable From Incentivized Projects [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Other assets | 27,080 | 27,391 |
| Taxes And Labor Contributions To Offset [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Other assets | 112,471 | 80,610 |
| Fistel Credits [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Other assets | 32,966 | 38,033 |
| Other [Member] | ||
| IfrsStatementLineItems [Line Items] | ||
| Other assets | R$ 62,496 | R$ 55,130 |