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10 Accounts Receivables - Concessions (Details Narrative) - Concession Agreement [member] - HPP GPS [member] - Bonus from the grant of concession agreements under the quota system [member] R$ in Thousands | Jan. 05, 2016 BRL (R$)
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Accounts Receivable Concessions [Line Items] |
Concession agreement term | P30Y
Bonus paid | R$ 574,827
Description of proportion of electric energy sold | 70% of the power in the ACR and 30% in the free environment - ACL.

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- Definition Description of agreement term. + References No definition available. + Details
Name: | elp_AgreementTerms
Namespace Prefix: | elp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount related to bonus paid. + References No definition available. + Details
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Namespace Prefix: | elp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Line items represent accounr=ts receivale concession. + References No definition available. + Details
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Namespace Prefix: | elp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The description of the business or businesses that the acquirer obtains control of in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2020-01-01 -Paragraph B64 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2020-en-r&anchor=para_B64_a&doctype=Appendix&subtype=B -URIDate 2020-01-01 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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- Details
Name: | ifrs-full_ClassesOfAssetsAxis=elp_BonusFromTheGrantOfConcessionAgreementsUnderTheQuotaSystemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |