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Accounts Payable to Suppliers (Details) - BRL (R$) R$ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of fair value measurement of liabilities [line items] |  |
Suppliers | R$ 2,466,803 | R$ 2,285,573
Suppliers, current | 2,324,423 | 2,154,430
Suppliers, noncurrent | 142,380 | 131,143
Energy Power [Member] |  |
Disclosure of fair value measurement of liabilities [line items] |  |
Suppliers | 1,525,681 | 1,284,191
Materials And Supplies [Member] |  |
Disclosure of fair value measurement of liabilities [line items] |  |
Suppliers | 564,368 | 638,025
Charges For Use Of Grid System [Member] |  |
Disclosure of fair value measurement of liabilities [line items] |  |
Suppliers | R$ 376,754 | R$ 363,357

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