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Financial instruments - Sensitivity analysis – exposure to interest rates – except for derivative financial instruments (Details) R$ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 BRL (R$) | Jun. 30, 2025 BRL (R$)
Possible 25% | Cash and cash equivalents |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | R$ 2,264,271 | R$ 2,264,271
Possible 25% | Marketable securities |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 278,796 | 278,796
Possible 25% | Loans and financing |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | R$ (17,460,993) | R$ (17,460,993)
Possible 25% | Interest rate risk [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Sensitivity Analysis, Interest Rate, Percentage of Increase (Decrease) | 25.00% | 25.00%
Possible 25% | Interest rate risk [member] | Cash and cash equivalents | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | R$ 105,656 | R$ 105,656
Possible 25% | Interest rate risk [member] | Marketable securities | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 217,055 | 217,055
Possible 25% | Interest rate risk [member] | Loans and financing | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 349,088 | 349,088
Possible 25% | Interest rate risk [member] | Loans and financing | BNDES – TJLP |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 3,236 | 3,236
Possible 25% | Interest rate risk [member] | Loans and financing | SOFR |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 273,854 | 273,854
Remote 50% | Cash and cash equivalents |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 4,528,541 | 4,528,541
Remote 50% | Marketable securities |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 557,593 | 557,593
Remote 50% | Loans and financing |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | R$ (34,921,986) | R$ (34,921,986)
Remote 50% | Interest rate risk [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Sensitivity Analysis, Interest Rate, Percentage of Increase (Decrease) | 50.00% | 50.00%
Remote 50% | Interest rate risk [member] | Cash and cash equivalents | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | R$ 211,312 | R$ 211,312
Remote 50% | Interest rate risk [member] | Marketable securities | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 434,111 | 434,111
Remote 50% | Interest rate risk [member] | Loans and financing | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 698,177 | 698,177
Remote 50% | Interest rate risk [member] | Loans and financing | BNDES – TJLP |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 6,472 | 6,472
Remote 50% | Interest rate risk [member] | Loans and financing | SOFR |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 547,709 | 547,709
Probable (base value) | Cash and cash equivalents |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 9,057,082 | 9,057,082
Probable (base value) | Marketable securities |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 1,115,185 | 1,115,185
Probable (base value) | Loans and financing |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | (69,843,971) | (69,843,971)
Probable (base value) | Interest rate risk [member] | Cash and cash equivalents | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 2,836,399 | 2,836,399
Probable (base value) | Interest rate risk [member] | Marketable securities | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 5,803,142 | 5,803,142
Probable (base value) | Interest rate risk [member] | Loans and financing | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 9,371,502 | 9,371,502
Probable (base value) | Interest rate risk [member] | Loans and financing | BNDES – TJLP |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 149,642 | 149,642
Probable (base value) | Interest rate risk [member] | Loans and financing | SOFR |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | R$ 24,616,123 | R$ 24,616,123

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- Definition The amount of assets that are: (a) cash; (b) an equity instrument of another entity; (c) a contractual right: (i) to receive cash or another financial asset from another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially favourable to the entity; or (d) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to receive a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose the entity’s own equity instruments do not include puttable financial instruments classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. [Refer: Classes of financial instruments [domain]; Financial liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35H -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35H&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35M -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35M&doctype=Standard -URIDate 2024-03-27 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35N -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35N&doctype=Standard -URIDate 2024-03-27 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 35I -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_35I&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of liabilities that are: (a) a contractual obligation: (i) to deliver cash or another financial asset to another entity; or (ii) to exchange financial assets or financial liabilities with another entity under conditions that are potentially unfavourable to the entity; or (b) a contract that will, or may be, settled in the entity’s own equity instruments and is: (i) a non-derivative for which the entity is, or may be, obliged to deliver a variable number of the entity’s own equity instruments; or (ii) a derivative that will, or may be, settled other than by the exchange of a fixed amount of cash or another financial asset for a fixed number of the entity’s own equity instruments. For this purpose, rights, options or warrants to acquire a fixed number of the entity’s own equity instruments for a fixed amount of any currency are equity instruments if the entity offers the rights, options or warrants pro rata to all of its existing owners of the same class of its own non-derivative equity instruments. Also, for those purposes the entity’s own equity instruments do not include puttable financial instruments that are classified as equity instruments in accordance with paragraphs 16A-16B of IAS 32, instruments that impose on the entity an obligation to deliver to another party a pro rata share of the net assets of the entity only on liquidation and are classified as equity instruments in accordance with paragraphs 16C-16D of IAS 32, or instruments that are contracts for the future receipt or delivery of the entity’s own equity instruments. As an exception, an instrument that meets the definition of a financial liability is classified as an equity instrument if it has all the features and meets the conditions in paragraphs 16A-16B or paragraphs 16C-16D of IAS 32. [Refer: Classes of financial instruments [domain]; Financial assets; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard -URIDate 2024-03-27 + Details
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