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v3.25.1

Intangible assets (Details 4) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Other In Service [Member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Intangible assets, beginning | R$ 23,940 | R$ 12,848
Business combination effects |  | 4
Acquisitions | 0 | 37
Increase (decrease) through transfers, intangible assets other than goodwill | 0 | 4,570
Transfers from contract assets | 0 |
Capitalizations for intangible in service | 10,929 | 14,555
Amortization of quotas - concession and authorization | (8,720) | (8,040)
Loss on disposal | 0 | 0
Reclassification | (277) | (34)
Intangible assets, ending | 25,872 | 23,940
Other In Progress [Member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Intangible assets, beginning | 27,120 | 28,330
Business combination effects |  | 0
Acquisitions | 24,371 | 13,351
Increase (decrease) through transfers, intangible assets other than goodwill | (3,339) | 0
Transfers from contract assets | 52 |
Capitalizations for intangible in service | (10,929) | (14,555)
Amortization of quotas - concession and authorization | 0 | 0
Loss on disposal | (539) | (6)
Reclassification | (2,437) | 0
Intangible assets, ending | 34,299 | 27,120
Other [Member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Intangible assets, beginning | 51,060 | 41,178
Business combination effects |  | 4
Acquisitions | 24,371 | 13,388
Increase (decrease) through transfers, intangible assets other than goodwill | (3,339) | 4,570
Transfers from contract assets | 52 |
Capitalizations for intangible in service | 0 | 0
Amortization of quotas - concession and authorization | (8,720) | (8,040)
Loss on disposal | (539) | (6)
Reclassification | (2,714) | (34)
Intangible assets, ending | R$ 60,171 | R$ 51,060

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