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Accounts Receivables - Concessions (Details Narrative) - H P P G P S [Member] - Bonus From The Grant Of Concession Agreements Under The Quota System [Member] - Concession Agreement [Member] R$ in Thousands	Jan. 05, 2016 BRL (R$)
IfrsStatementLineItems [Line Items]
Concession agreement term	30 years
Bonus paid	R$ 574,827

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- References

No definition available.

+ Details

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Namespace Prefix:	elp_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

Name:	elp_BonusPaid
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- References

No definition available.

+ Details

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Namespace Prefix:	elp_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

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

X

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=elp_BonusFromTheGrantOfConcessionAgreementsUnderTheQuotaSystemMember
Namespace Prefix:
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Balance Type:
Period Type:

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- Details

Name:	ifrs-full_ServiceConcessionArrangementsAxis=elp_ConcessionAgreementMember
Namespace Prefix:
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Balance Type:
Period Type: