XML 172 R207.htm IDEA: XBRL DOCUMENT
v3.20.1

32 Operating Costs and Expenses (Details 3) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Disclosure of operating costs and expenses [line items] |  |  |
Third-party services expense | R$ 613,121 | R$ 572,227 | R$ 521,515
Maintenance Of Electrical System [Member] |  |  |
Disclosure of operating costs and expenses [line items] |  |  |
Third-party services expense | 164,572 | 144,211 | 135,265
Communication Processing And Transmission Of Data [Member] |  |  |
Disclosure of operating costs and expenses [line items] |  |  |
Third-party services expense | 115,037 | 115,397 | 94,230
Maintenance Of Facilities [Member] |  |  |
Disclosure of operating costs and expenses [line items] |  |  |
Third-party services expense | 105,586 | 91,872 | 95,176
Consumer Service [Member] |  |  |
Disclosure of operating costs and expenses [line items] |  |  |
Third-party services expense | 55,632 | 34,502 | 29,789
Meter Reading And Bill Delivery [Member] |  |  |
Disclosure of operating costs and expenses [line items] |  |  |
Third-party services expense | 45,515 | 43,968 | 49,647
Consulting And Audit [Member] |  |  |
Disclosure of operating costs and expenses [line items] |  |  |
Third-party services expense | 21,016 | 41,615 | 21,589
Other Services [Member] |  |  |
Disclosure of operating costs and expenses [line items] |  |  |
Third-party services expense | R$ 105,763 | R$ 100,662 | R$ 95,819

X
- Definition Operating Costs And Expenses [Line Items] + References No definition available. + Details
Name: | elp_DisclosureOfOperatingCostsAndExpensesLineItems
Namespace Prefix: | elp_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount refers to third party services expense. + References No definition available. + Details
Name: | elp_ThirdPartyServicesExpense
Namespace Prefix: | elp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | elp_TypeOfExpenseAxis=elp_MaintenanceOfElectricalSystemMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | elp_TypeOfExpenseAxis=elp_CommunicationProcessingAndTransmissionOfDataMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | elp_TypeOfExpenseAxis=elp_MaintenanceOfFacilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | elp_TypeOfExpenseAxis=elp_ConsumerServiceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | elp_TypeOfExpenseAxis=elp_MeterReadingAndBillDeliveryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | elp_TypeOfExpenseAxis=elp_ConsultingAndAuditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | elp_TypeOfExpenseAxis=elp_OtherServicesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |