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8 CRC Transferred to the Parana State Government (Details 1) - BRL (R$) R$ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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DisclosureOfChangesInCrcLineItems [Line Items] |  |
CRC transferred to the State Government of Parana noncurrent | R$ 1,104,835 | R$ 1,131,449
2022 [member] |  |
DisclosureOfChangesInCrcLineItems [Line Items] |  |
CRC transferred to the State Government of Parana noncurrent | 306,928 |
2023 [member] |  |
DisclosureOfChangesInCrcLineItems [Line Items] |  |
CRC transferred to the State Government of Parana noncurrent | 327,341 |
2024 [member] |  |
DisclosureOfChangesInCrcLineItems [Line Items] |  |
CRC transferred to the State Government of Parana noncurrent | 349,111 |
2025 [member] |  |
DisclosureOfChangesInCrcLineItems [Line Items] |  |
CRC transferred to the State Government of Parana noncurrent | R$ 121,455 |

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