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11 Contract assets (Details 2) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 BRL (R$)
RBSE Assets [member] |  |
ContractAssetsLineItems [Line Items] |  |
Construction income | 1.65% |
Operating and maintenance margin | 1.65% |
Remuneration rate | 9.58% | [1]
Contract correction index | IPCA | [2]
Annual RAP, according to Homologatory Resolution | R$ 415,455 |
Construction cost incurred up to 12.31.2020 of works in progress Contract 006/2016 - TL 525 kV Curitiba Leste - Blumenau | R$ 238,233 |
Concession Assets [member] |  |
ContractAssetsLineItems [Line Items] |  |
Remuneration rate | 9.54% | [1]
Contract correction index | IPCA |
Annual RAP, according to Homologatory Resolution | R$ 279,406 |
[1] | Average rate of contracts.
[2] | Contract 075/2001 - LT 230 kV Bateias - Jaguariaiva, from Copel GET, and contract 002/2005 - LT 525 kV Ivaipora - Londrina, from Uirapuru, are adjusted by the IGPM

X
- Definition The amount of annual RAP, according to Homologatory Resolution. + References No definition available. + Details
Name: | elp_AnnualRapAccordingToHomologatoryResolution
Namespace Prefix: | elp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The amount of construction cost incurred. + References No definition available. + Details
Name: | elp_ConstructionCostIncurred
Namespace Prefix: | elp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | elp_ContractAssetsLineItems
Namespace Prefix: | elp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Description of contract correction index. + References No definition available. + Details
Name: | elp_DescriptionOfContractCorrectionIndex
Namespace Prefix: | elp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of operating and maintenance margin. + References No definition available. + Details
Name: | elp_PercentageOFOperatingAndMaintenanceMargin
Namespace Prefix: | elp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Represent information about the percentage of construction income. + References No definition available. + Details
Name: | elp_PercentageOfConstructionIncome
Namespace Prefix: | elp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of remuneration rate. + References No definition available. + Details
Name: | elp_PercentageOfRemunerationRate
Namespace Prefix: | elp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | elp_ClassesOfContractAssetsAxis=elp_RBSEAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | elp_ClassesOfContractAssetsAxis=elp_ConcessionAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |