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42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 7) - BRL (R$) R$ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
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CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Reserve for risks | R$ 1,555,704 | R$ 1,606,713 | R$ 1,664,773
Companhia Paranaense de Energia - Copel [member] | Regulatory [member] |  |  |
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Reserve for risks | 21,373 | 17,357 |
Companhia Paranaense de Energia - Copel [member] | Labor [member] |  |  |
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Reserve for risks | 2,466 | 1,957 |
Companhia Paranaense de Energia - Copel [member] | Tax Claim [member] |  |  |
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Reserve for risks | 136,553 | 150,529 |
Companhia Paranaense de Energia - Copel [member] | Civil [member] |  |  |
CondensedUnconsolidatedFinancialInformationOfCompanhiaParanaenseDeEnergiaCopelLineItems [Line Items] |  |  |
Reserve for risks | R$ 163,940 | R$ 150,529 |

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