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Investments (Details 2) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | R$ 313,861 | R$ 338,211 | R$ 291,407
Net income (loss) | 68,358 | 37,314 | 96,029
Other comprehensive income | (546) | 2,721 | 144
Dividends | (13,997) | (24,187) | (49,369)
Distribution of dividends with retained earnings | (62,162) | (40,198) |
Ending balance | 305,514 | 313,861 | 338,211
Compagas [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | 272,995 | 248,869 | 242,578
Net income (loss) | 58,181 | 87,809 | 48,800
Other comprehensive income | 660 | 702 | 144
Dividends | (13,997) | (24,187) | (42,653)
Distribution of dividends with retained earnings | (62,162) | (40,198) |
Ending balance | 255,677 | 272,995 | 248,869
Elejor [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | (10,451) | (12,285) | 4,046
Net income (loss) | 873 | (207) | (16,331)
Other comprehensive income | (1,263) | 2,041 |
Dividends |  |  |
Distribution of dividends with retained earnings |  |  |
Ending balance | (10,841) | (10,451) | (12,285)
U E G Araucaria [Member] |  |  |
IfrsStatementLineItems [Line Items] |  |  |
Beginning balance | 51,317 | 101,627 | 44,783
Net income (loss) | 9,304 | (50,288) | 63,560
Other comprehensive income | 57 | (22) |
Dividends |  |  | (6,716)
Distribution of dividends with retained earnings |  |  |
Ending balance | R$ 60,678 | R$ 51,317 | R$ 101,627

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