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Schedule of gains (losses) on operations with derivative financial instruments (Details) - Currency risk [member] R$ in Thousands	12 Months Ended
	Dec. 31, 2021 BRL (R$)
Exchange Rate Increase [Member]
OperationsLineItems [Line Items]
Gains (losses) on operations with derivative financial instruments, Baseline	R$ 2,907
Gains (losses) on operations with derivative financial instruments, Probable	996
Exchange Rate Decrease [Member]
OperationsLineItems [Line Items]
Gains (losses) on operations with derivative financial instruments, Baseline	2,907
Gains (losses) on operations with derivative financial instruments, Probable	R$ 996

X

- Definition

The amount of gains losses on operations with derivative financial instruments baseline.

+ References

No definition available.

+ Details

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

X

- Definition

The amount of gains losses on operations with derivative financial instruments probable.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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

X

- Details

Name:	ifrs-full_TypesOfRisksAxis=ifrs-full_CurrencyRiskMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=elp_ExchangeRateIncreaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfFinancialAssetsAxis=elp_ExchangeRateDecreaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: