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41 Condensed Unconsolidated Financial Information of Companhia Paranaense de Energia - Copel (Details 4) - Companhia Paranaense de Energia - Copel [Member] - BRL (R$)
R$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items]    
Related parties assets R$ 511,477 R$ 112,885
Related parties liabilities 841 755
Copel Distribuicao [Member]    
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items]    
Related parties assets 89,296 104,751
Investees and Subsidiaries - Structure Sharing [Member]    
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items]    
Related parties assets 6,039 8,134
Related parties liabilities 696 755
Elejor Advance [Member]    
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items]    
Related parties liabilities R$ 145