Power distribution service concession (Details) - BRL (R$) R$ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
IfrsStatementLineItems [Line Items]
Accounts receivable related to the concession	R$ 2,266,805	R$ 1,902,340
Accounts receivable related to the concession, current	5,121	4,515
Accounts receivable related to the concession, noncurrent	2,261,684	1,897,825
Power Distribution Service Concession [Member]
IfrsStatementLineItems [Line Items]
Accounts receivable related to the concession	1,200,708
Balance as of December 31, 2020	960,518	836,818
Transfers from contract assets (Note 11.1)	125,492	86,154
Transfers to intangible assets (Note 19.1)	8,385	(99)
Transfers to other receivables (assets held for disposal)	(2,407)	(7,428)
Fair value recognition	108,733	45,187
Loss on disposal	(13)	(114)
Balance as of December 31, 2021	1,200,708	960,518
Power Distribution Service Concession [Member] \| Restated One [Member]
IfrsStatementLineItems [Line Items]
Accounts receivable related to the concession		960,518
Piped Gas Distribution Service Concession [Member]
IfrsStatementLineItems [Line Items]
Accounts receivable related to the concession	233,026
Piped Gas Distribution Service Concession [Member] \| Restated One [Member]
IfrsStatementLineItems [Line Items]
Accounts receivable related to the concession		189,416
Bonus From The Grant Of Concession Agreements Under The Quota System [Member]
IfrsStatementLineItems [Line Items]
Accounts receivable related to the concession	730,851
Bonus From The Grant Of Concession Agreements Under The Quota System [Member] \| Restated One [Member]
IfrsStatementLineItems [Line Items]
Accounts receivable related to the concession		671,204
Generation Concession Agreements [Member]
IfrsStatementLineItems [Line Items]
Accounts receivable related to the concession	R$ 102,220
Generation Concession Agreements [Member] \| Restated One [Member]
IfrsStatementLineItems [Line Items]
Accounts receivable related to the concession		R$ 81,202

No definition available.

Name:	elp_DistributionConcessionAgreement
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

It represents distribution concession agreeemnt tranfers fair value recognition.

+ References

No definition available.

+ Details

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

- References

No definition available.

+ Details

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

- Definition

It represents distribution concession agreeemnt tranfers from investments.

+ References

No definition available.

+ Details

Name:	elp_DistributionConcessionAgreementTransferFromInvestments
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

+ Details

Name:	elp_DistributionConcessionAgreementTransfersFromIntangibleAssets
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

+ Details

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

- Definition

Amount represents the transfers from contract assets.

+ References

No definition available.

+ Details

Name:	elp_TransfersFromContractAssets
Namespace Prefix:	elp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of current other receivables. [Refer: Other receivables]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 78
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78_b&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_OtherCurrentReceivables
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of non-current other receivables. [Refer: Other receivables]

+ References

+ Details

Name:	ifrs-full_OtherNoncurrentReceivables
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount receivable by the entity that it does not separately disclose in the same statement or note.

+ References

+ Details

Name:	ifrs-full_OtherReceivables
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=elp_PowerDistributionServiceConcessionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RetrospectiveApplicationAndRetrospectiveRestatementAxis=elp_RestatedOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=elp_PipedGasDistributionServiceConcessionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=elp_GenerationConcessionAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: