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36 Related Party Transactions (Details 2) R$ in Thousands | 12 Months Ended
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Dec. 31, 2019 BRL (R$)
Disclosure of transactions between related parties [line items] |
Amount endorsement | R$ 106,358
Matrincha Transmissora [Member] |
Disclosure of transactions between related parties [line items] |
Final maturity | Sep. 30, 2020
Amount insured | R$ 90,000
Endorsement percent, Copel GeT | 49.00%
Amount endorsement | R$ 44,100
Guaraciaba Transmissora [Member] |
Disclosure of transactions between related parties [line items] |
Final maturity | Apr. 30, 2020
Amount insured | R$ 47,000
Endorsement percent, Copel GeT | 49.00%
Amount endorsement | R$ 23,030
Mata de Santa Genebra [Member] |
Disclosure of transactions between related parties [line items] |
Final maturity | May 31, 2020
Amount insured | R$ 78,300
Endorsement percent, Copel GeT | 50.10%
Amount endorsement | R$ 39,228

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- Definition The amount refers to performance bond endorsement amount. + References No definition available. + Details
Name: | elp_PerformanceBondEndorsementAmount
Namespace Prefix: | elp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Represents the information pertaining to performance bond endorsement percent. + References No definition available. + Details
Name: | elp_PerformanceBondEndorsementPercent
Namespace Prefix: | elp_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount refers to performance bond final maturity. + References No definition available. + Details
Name: | elp_PerformanceBondFinalMaturity
Namespace Prefix: | elp_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount refers to performance bond insured amount. + References No definition available. + Details
Name: | elp_PerformanceBondInsuredAmount
Namespace Prefix: | elp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- 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_DisclosureOfTransactionsBetweenRelatedPartiesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=elp_MatrinchaTransmissoraMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=elp_GuaraciabaTransmissoraMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=elp_MataDeSantaGenebraMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |