Net sales by product - Segment information (Details) - BRL (R$) R$ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
|
| Disclosure of operating segments [line items] | ||
| Net sales | R$ 11,552,921 | R$ 9,458,602 |
| Total of products | ||
| Disclosure of operating segments [line items] | ||
| Net sales | 11,552,921 | 9,458,602 |
| Market pulp (1) | ||
| Disclosure of operating segments [line items] | ||
| Net sales | 8,611,543 | 7,359,846 |
| Printing and writing paper (2) | ||
| Disclosure of operating segments [line items] | ||
| Net sales | 1,879,301 | 1,780,944 |
| Paperboard | ||
| Disclosure of operating segments [line items] | ||
| Net sales | 1,051,768 | 298,190 |
| Other | ||
| Disclosure of operating segments [line items] | ||
| Net sales | R$ 10,309 | R$ 19,622 |
| Fluff pulp | ||
| Disclosure of operating segments [line items] | ||
| Percentage of entity's revenue | 0.60% | 0.70% |
| Tissue | ||
| Disclosure of operating segments [line items] | ||
| Percentage of entity's revenue | 6.00% | 6.70% |