Employee benefits plans - Roll-forward of actuarial liability (Details) - BRL (R$) R$ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Disclosure of defined benefit plans [line items] | ||
| Opening Balance | R$ 741,143 | R$ 721,560 |
| Interest on actuarial liabilities | 19,653 | 77,348 |
| Current service cost | 558 | 1,939 |
| Actuarial gain – experience | (13,340) | |
| Actuarial loss – financial assumptions | 6,026 | |
| Benefits paid directly by entity | (13,344) | R$ (52,390) |
| Closing Balance | R$ 748,010 | |
| X | ||||||||||
- References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. No definition available.
|
| X | ||||||||||
- Definition The decrease (increase) in a net defined benefit liability (asset) resulting from the remeasurement of that net defined benefit liability (asset). [Refer: Net defined benefit liability (asset)] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [domain]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The decrease (increase) in the net defined benefit liability (asset) resulting from payments from the plan. [Refer: Net defined benefit liability (asset)] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Actuarial loss – experience No definition available.
|