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Financial instruments - Sensitivity analysis – exposure to interest rates – except for derivative financial instruments (Details) R$ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2024 BRL (R$) | Dec. 31, 2024 BRL (R$)
Possible 25% | Cash and cash equivalents |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | R$ 1,624,010 | R$ 1,624,010
Possible 25% | Marketable securities |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 17,564 | 17,564
Possible 25% | Loans and financing |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | R$ (20,751,229) | R$ (20,751,229)
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$ 73,578 | R$ 73,578
Possible 25% | Interest rate risk [member] | Marketable securities | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 403,783 | 403,783
Possible 25% | Interest rate risk [member] | Loans and financing | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 282,202 | 282,202
Possible 25% | Interest rate risk [member] | Loans and financing | BNDES – TJLP |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 3,770 | 3,770
Possible 25% | Interest rate risk [member] | Loans and financing | SOFR |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 320,294 | 320,294
Remote 50% | Cash and cash equivalents |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 3,248,020 | 3,248,020
Remote 50% | Marketable securities |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 35,128 | 35,128
Remote 50% | Loans and financing |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | R$ (41,502,458) | R$ (41,502,458)
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$ 147,155 | R$ 147,155
Remote 50% | Interest rate risk [member] | Marketable securities | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 807,565 | 807,565
Remote 50% | Interest rate risk [member] | Loans and financing | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 564,404 | 564,404
Remote 50% | Interest rate risk [member] | Loans and financing | BNDES – TJLP |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 7,540 | 7,540
Remote 50% | Interest rate risk [member] | Loans and financing | SOFR |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 640,588 | 640,588
Probable (base value) | Cash and cash equivalents |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 6,496,039 | 6,496,039
Probable (base value) | Marketable securities |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 70,255 | 70,255
Probable (base value) | Loans and financing |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | (83,004,915) | (83,004,915)
Probable (base value) | Interest rate risk [member] | Cash and cash equivalents | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 2,422,308 | 2,422,308
Probable (base value) | Interest rate risk [member] | Marketable securities | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial assets | 13,293,256 | 13,293,256
Probable (base value) | Interest rate risk [member] | Loans and financing | CDI/SELIC |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 9,290,595 | 9,290,595
Probable (base value) | Interest rate risk [member] | Loans and financing | BNDES – TJLP |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | 202,961 | 202,961
Probable (base value) | Interest rate risk [member] | Loans and financing | SOFR |  |
Disclosure of detailed information about financial instruments [line items] |  |
Financial liabilities | R$ 28,534,005 | R$ 28,534,005

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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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- Definition The increase (decrease) in the interest rate used in a sensitivity analysis. + References No definition available. + Details
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