Line items represent accounr=ts receivale concession.

No definition available.

Name:	elp_DisclosureOfAccountsReceivableConcessionsLineItems
Namespace Prefix:	elp_
Data Type:	xbrli:stringItemType
Balance Type:	na
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 2020-01-01
-Paragraph 78
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_78_b&doctype=Standard
-URIDate 2020-01-01

+ 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_RetrospectiveApplicationAndRetrospectiveRestatementAxis=elp_RestatedOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=elp_PowerDistributionServiceConcessionMember
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:

10 Accounts Receivables - Concessions (Details) - BRL (R$) R$ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Jan. 02, 2019	Dec. 31, 2018
Accounts Receivable Concessions [Line Items]
Accounts receivable related to the concession	R$ 1,902,340	R$ 1,878,369	R$ 1,796,865
Accounts receivable related to the concession, current	4,515
Accounts receivable related to the concession, noncurrent	1,897,825
Restated [Member]
Accounts Receivable Concessions [Line Items]
Accounts receivable related to the concession			65,811
Accounts receivable related to the concession, current		4,545		R$ 4,180
Accounts receivable related to the concession, noncurrent		1,873,824		R$ 1,792,685
Power distribution service concession [member]
Accounts Receivable Concessions [Line Items]
Accounts receivable related to the concession	960,518
Power distribution service concession [member] \| Restated [Member]
Accounts Receivable Concessions [Line Items]
Accounts receivable related to the concession		836,818	783,023
Piped gas distribution service concession [member]
Accounts Receivable Concessions [Line Items]
Accounts receivable related to the concession	189,416
Piped gas distribution service concession [member] \| Restated [Member]
Accounts Receivable Concessions [Line Items]
Accounts receivable related to the concession		324,385	322,259
Bonus from the grant of concession agreements under the quota system [member]
Accounts Receivable Concessions [Line Items]
Accounts receivable related to the concession	671,204
Bonus from the grant of concession agreements under the quota system [member] \| Restated [Member]
Accounts Receivable Concessions [Line Items]
Accounts receivable related to the concession		647,984	R$ 625,772
Generation concession agreements [member]
Accounts Receivable Concessions [Line Items]
Accounts receivable related to the concession	R$ 81,202
Generation concession agreements [member] \| Restated [Member]
Accounts Receivable Concessions [Line Items]
Accounts receivable related to the concession		R$ 69,182