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Property, Plant and Equipment (Details 2) - BRL (R$)
R$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
IfrsStatementLineItems [Line Items]    
Joint operations R$ 1,253,125 R$ 1,300,564
HPP Gov. Jayme Canet J?nior (Mau?) - Cons?rcio [Member]    
IfrsStatementLineItems [Line Items]    
Share 51.00%  
Joint operations R$ 591,053 616,661
HPP Gov. Jayme Canet J?nior (Mau?) - Cons?rcio [Member] | In service    
IfrsStatementLineItems [Line Items]    
Joint operations 859,882 859,926
HPP Gov. Jayme Canet J?nior (Mau?) - Cons?rcio [Member] | In progress    
IfrsStatementLineItems [Line Items]    
Joint operations 19,899 20,527
Accumulated depreciation | In service    
IfrsStatementLineItems [Line Items]    
Joint operations R$ (288,728) (263,792)
Annual average depreciation rate 2.90%  
Accumulated depreciation | In progress    
IfrsStatementLineItems [Line Items]    
Joint operations R$ (87,278) (64,519)
Annual average depreciation rate 3.28%  
HPP Baixo Igua?u    
IfrsStatementLineItems [Line Items]    
Share 30.00%  
Joint operations R$ 662,072 683,903
HPP Baixo Igua?u | In service    
IfrsStatementLineItems [Line Items]    
Joint operations 693,487 692,395
HPP Baixo Igua?u | In progress    
IfrsStatementLineItems [Line Items]    
Joint operations R$ 55,863 R$ 56,027