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Basis of measurement - Liquidity risk (Details) - BRL (R$) R$ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Non-derivative financial liabilities, undiscounted cash flows | R$ 793,310 | R$ 636,490
Not later than one year [member] |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Non-derivative financial liabilities, undiscounted cash flows | 0 | 80,387
Later than one year and not later than two years [member] |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Non-derivative financial liabilities, undiscounted cash flows | 92,885 | 64,494
Liquidity risk [member] |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Bank borrowings, undiscounted cash flows | 990,144 | 701,902
Loans and financing (interest) | 100,005 | 79,315
Bonds issued, undiscounted cash flows | 463,895 | 545,750
Gross lease liabilities | 420,536 | 62,484
Trade and other payables, undiscounted cash flows | 276,113 | 232,807
Non-derivative financial liabilities, undiscounted cash flows | 2,250,693 | 1,622,258
Liquidity risk [member] | Not later than one year [member] |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Bank borrowings, undiscounted cash flows | 212,105 | 84,369
Loans and financing (interest) | 21,423 | 9,534
Bonds issued, undiscounted cash flows | 84,072 | 79,677
Gross lease liabilities | 105,419 | 24,892
Trade and other payables, undiscounted cash flows | 266,441 | 219,256
Non-derivative financial liabilities, undiscounted cash flows | 689,460 | 417,728
Liquidity risk [member] | Later than one year and not later than two years [member] |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Bank borrowings, undiscounted cash flows | 692,678 | 140,566
Loans and financing (interest) | 69,960 | 15,884
Bonds issued, undiscounted cash flows | 187,860 | 116,518
Gross lease liabilities | 183,267 | 29,344
Trade and other payables, undiscounted cash flows | 9,672 | 13,551
Non-derivative financial liabilities, undiscounted cash flows | 1,143,437 | 315,863
Liquidity risk [member] | Later than two years and not later than five years [member] |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Bank borrowings, undiscounted cash flows | 77,413 | 476,967
Loans and financing (interest) | 7,819 | 53,897
Bonds issued, undiscounted cash flows | 191,963 | 349,555
Gross lease liabilities | 131,850 | 8,248
Trade and other payables, undiscounted cash flows | 0 | 0
Non-derivative financial liabilities, undiscounted cash flows | 409,045 | 888,667
Liquidity risk [member] | Later than five years [member] |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |
Bank borrowings, undiscounted cash flows | 7,948 | 0
Loans and financing (interest) | 803 | 0
Bonds issued, undiscounted cash flows | 0 | 0
Gross lease liabilities | 0 | 0
Trade and other payables, undiscounted cash flows | 0 | 0
Non-derivative financial liabilities, undiscounted cash flows | R$ 8,751 | R$ 0

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