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Trade Accounts Receivable (Details 2) - BRL (R$) R$ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Allowance account for credit losses of financial assets at beginning of period |  | R$ 271,943
Expected credit losses at beginning of period | R$ 282,382 |
Additions/ (Reversals) | 100,025 | 107,296
Write offs | (134,183) | (86,519)
Reclassification | (7,510) | (10,338)
Expected credit losses at end of period | 240,714 | 282,382
Electricity Sales To Final Customers And Charges For Use Of The System Copel D I S [Member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Allowance account for credit losses of financial assets at beginning of period |  | 119,538
Expected credit losses at beginning of period | 133,867 |
Additions/ (Reversals) | 70,627 | 99,685
Write offs | (120,871) | (85,356)
Reclassification | 0 |
Expected credit losses at end of period | 83,623 | 133,867
Residential Accounts Receivable [Member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Allowance account for credit losses of financial assets at beginning of period |  | 12,532
Expected credit losses at beginning of period | 15,324 |
Additions/ (Reversals) | 716 | 2,792
Write offs | (9,175) |
Reclassification | 0 | 0
Expected credit losses at end of period | 6,865 | 15,324
Industrial Accounts Receivable [Member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Allowance account for credit losses of financial assets at beginning of period |  | 9,827
Expected credit losses at beginning of period | 13,526 |
Additions/ (Reversals) | 21,172 | 4,533
Write offs | (4,137) | (834)
Reclassification | 0 | 0
Expected credit losses at end of period | 30,561 | 13,526
C C E E [Member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Allowance account for credit losses of financial assets at beginning of period |  | 119,665
Expected credit losses at beginning of period | 119,665 |
Additions/ (Reversals) | 0 | 0
Write offs | 0 | 0
Reclassification | 0 | 0
Expected credit losses at end of period | 119,665 | 119,665
Gas distribution [Member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Allowance account for credit losses of financial assets at beginning of period |  | 10,381
Expected credit losses at beginning of period | 0 |
Additions/ (Reversals) | 7,510 | 286
Write offs | 0 | (329)
Reclassification | (7,510) | (10,338)
Expected credit losses at end of period | R$ 0 | R$ 0

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- Definition Additions/ (Reversals) + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Expected credit losses + References No definition available. + Details
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Namespace Prefix: | elp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Reclassification + References No definition available. + Details
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Balance Type: | credit
Period Type: | duration

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- Definition Write offs + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition The amount of an allowance account used to record impairments to financial assets due to credit losses. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expired 2023-01-01 -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_16&doctype=Standard&book=b -URIDate 2024-03-27 + Details
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Period Type: | instant

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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Period Type: |