Inventories (Details) - BRL (R$) R$ in Thousands |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Inventories [Line Items] | ||
| Current finished goods | ||
| Current work in progress | 142,686 | 135,380 |
| Spare parts and other | 1,292,327 | 1,302,534 |
| (-) Expected losses | (95,111) | (97,934) |
| Inventories | 8,642,882 | 7,962,324 |
| Pulp | Country of domicile | ||
| Inventories [Line Items] | ||
| Current finished goods | 972,514 | 801,623 |
| Pulp | Foreign countries | ||
| Inventories [Line Items] | ||
| Current finished goods | 1,882,700 | 1,510,985 |
| Paper | Country of domicile | ||
| Inventories [Line Items] | ||
| Current finished goods | 653,493 | 561,409 |
| Paper | Foreign countries | ||
| Inventories [Line Items] | ||
| Current finished goods | 429,903 | 362,027 |
| Wood | ||
| Inventories [Line Items] | ||
| Current work in progress | 2,284,719 | 2,287,406 |
| Operating supplies and packaging | ||
| Inventories [Line Items] | ||
| Current work in progress | R$ 1,079,651 | R$ 1,098,894 |