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27 Right-of-use asset and lease liability (Details 3) - Cash Flow Hedges [Member] R$ in Thousands | Dec. 31, 2019 BRL (R$)
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Lease Consideration [Member] |
Disclosure of quantitative information about right-of-use assets [line items] |
Nominal | R$ 114,341
Present value | 96,604
Potential Pis / Cofins [Member] |
Disclosure of quantitative information about right-of-use assets [line items] |
Nominal | 8,320
Present value | R$ 7,296

X
- Definition The amount of lease consideration payable in the foreseen periods of nominal value. + References No definition available. + Details
Name: | elp_LeaseConsiderationPayableNominalValue
Namespace Prefix: | elp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of lease consideration payable in the foreseen periods of present value. + References No definition available. + Details
Name: | elp_LeaseConsiderationPayablePresentValue
Namespace Prefix: | elp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfQuantitativeInformationAboutRightofuseAssetsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_TypesOfHedgesAxis=ifrs-full_CashFlowHedgesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | elp_TypesOfLeaseConsiderationAxis=elp_LeaseConsiderationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | elp_TypesOfLeaseConsiderationAxis=elp_PotentialPisOrCofinsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |