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v3.20.1

20 Accounts payable to suppliers (Tables) | 12 Months Ended
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Dec. 31, 2019
Accounts Payable To Suppliers [Abstract] |
Schedule of accounts payable to suppliers |
| 12.31.2018 | 12.31.2017
Energy supplies | 819,792 | 986,689
Materials and supplies | 384,300 | 521,969
Natural gas for resale | 95,478 | 101,026
Charges for use of grid system | 169,629 | 117,362
| 1,469,199 | 1,727,046
Current | 1,419,243 | 1,683,577
Noncurrent | 49,956 | 43,469

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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

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- Definition Represent information about the summary of suppliers. + References No definition available. + Details
Name: | elp_SummaryOfSuppliersTableTextBlock
Namespace Prefix: | elp_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration