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Accounts Receivables - Concessions (Details 1) - Total - BRL (R$)
R$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure of fair value measurement of assets [line items]    
Beginning balance R$ 1,954,679 R$ 1,442,819
Transfers from contract assets 578,820 451,250
Transfers to other receivables (assets held for disposal) (1,927) (1,287)
Fair value recognition 82,424 62,167
Loss on disposal (3,265) (270)
Ending balance R$ 2,610,731 R$ 1,954,679