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v3.25.1

Financial instruments - Fair value settled amounts (Details) - BRL (R$) R$ in Thousands | 3 Months Ended | 12 Months Ended
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Mar. 31, 2025 | Dec. 31, 2024
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement | R$ 124,558 | R$ (550,581)
Operational Hedge |  |
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement | (28,667) | 650,845
Commodity Hedge |  |
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement | 8,733 | 89,327
Debt hedges |  |
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement | 144,492 | (1,290,753)
Zero cost collar (R$ x U.S.$) | Operational Hedge |  |
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement | 1,475 | 645,759
NDF (R$ x US$) | Operational Hedge |  |
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement | (30,142) | (68,695)
NDF (€ x US$) | Operational Hedge |  |
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement |  | 73,781
Swap VLSFO/other | Commodity Hedge |  |
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement | 8,733 | 89,327
Swap CDI x Fixed (US$) | Debt hedges |  |
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement | 90,068 | (1,635,058)
Swap IPCA x CDI (notional in Brazilian Reais) | Debt hedges |  |
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement | (43,312) | (59,243)
Swap Pre-Fixed to US$ | Debt hedges |  |
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement |  | (221,462)
Swap SOFR x SOFR (US$) | Debt hedges |  |
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement | 1,504 | 2,199
Swap SOFR x Fixed (US$) | Debt hedges |  |
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement | 21,482 | 19,074
Swap SOFR x Fixed (US$) | Debt hedges |  |
Disclosure of detailed information about financial instruments [line items] |  |
Proceeds From (Payments For) Derivative Instrument, Settlement | R$ 74,750 | R$ 603,737

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