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42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 4) - Companhia Paranaense de Energia - Copel [member] - BRL (R$)
R$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items]    
Related parties assets R$ 180,635 R$ 115,022
Related parties liabilities 289,501 841
Copel Distribuicao [member]    
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items]    
Related parties assets [1] 140,337 108,983
Elejor Advance [member]    
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items]    
Related parties liabilities 833 696
Investees and Subsidiaries - Structure Sharing [member]    
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items]    
Related parties assets 6,726  
Related parties liabilities 5,851 R$ 145
UEG Araucaria - mutual [member]    
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items]    
Related parties assets R$ 33,572  
[1] Copel DIS - Financing transferred - STN