Loans, financing and debentures - Roll-forward of loans, financing and debentures (Details) - BRL (R$) R$ in Thousands |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Jun. 30, 2025 |
|
| Disclosure of detailed information about borrowings [abstract] | |||
| Opening balance | R$ 94,801,257 | R$ 101,435,531 | R$ 101,435,531 |
| Fundraising, net of issuance costs | 91,273 | 23,871,760 | |
| Interest accrued | 1,426,111 | 5,953,778 | |
| Monetary and exchange rate variation, net | (3,419,196) | (8,384,101) | |
| Settlement of principal | (473,585) | (22,353,325) | |
| Settlement of interest | (1,711,077) | (5,817,907) | |
| Amortization of fundraising costs | 20,834 | R$ 101,803 | |
| Other Changes in Borrowings | R$ (6,282) | ||
| Closing balance | R$ 90,735,617 | ||