<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.21.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>3056</ContextCount>
  <ElementCount>1134</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>1030</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>11</UnitCount>
  <MyReports>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00000001 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00000002 - Statement - Consolidated Statements of Financial Position</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/StatementsOfFinancialPosition</Role>
      <ShortName>Consolidated Statements of Financial Position</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00000003 - Statement - Consolidated Statements of Income</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/StatementsOfIncome</Role>
      <ShortName>Consolidated Statements of Income</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00000004 - Statement - Consolidated Statements of Comprehensive Income</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/StatementsOfComprehensiveIncome</Role>
      <ShortName>Consolidated Statements of Comprehensive Income</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00000005 - Statement - Consolidated Statements of Changes in Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/StatementsOfChangesInEquity</Role>
      <ShortName>Consolidated Statements of Changes in Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00000006 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/StatementsOfCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>00000007 - Disclosure - 1 Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Operations</Role>
      <ShortName>1 Operations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>00000008 - Disclosure - 2 Concessions and Authorizations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ConcessionsAndAuthorizations</Role>
      <ShortName>2 Concessions and Authorizations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>00000009 - Disclosure - 3 Basis of Preparation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/BasisOfPreparation</Role>
      <ShortName>3 Basis of Preparation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>00000010 - Disclosure - 4 Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/SignificantAccountingPolicies</Role>
      <ShortName>4 Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>00000011 - Disclosure - 5 Cash and Cash Equivalents</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CashAndCashEquivalents</Role>
      <ShortName>5 Cash and Cash Equivalents</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>00000012 - Disclosure - 6 Bonds and Securities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/BondsAndSecurities</Role>
      <ShortName>6 Bonds and Securities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>00000013 - Disclosure - 7 Trade Accounts Receivable</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/TradeAccountsReceivable</Role>
      <ShortName>7 Trade Accounts Receivable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>00000014 - Disclosure - 8 CRC Transferred to the Parana State Government</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CrcTransferredToParanaStateGovernment</Role>
      <ShortName>8 CRC Transferred to the Parana State Government</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>00000015 - Disclosure - 9 Net Sectorial Financial Assets and Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/NetSectorialFinancialAssetsAndLiabilities</Role>
      <ShortName>9 Net Sectorial Financial Assets and Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>00000016 - Disclosure - 10 Accounts Receivables - Concessions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsReceivables-Concessions</Role>
      <ShortName>10 Accounts Receivables - Concessions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>00000017 - Disclosure - 11 Contract Assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ContractAssets</Role>
      <ShortName>11 Contract Assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>00000018 - Disclosure - 12 Other Receivables</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OtherReceivables</Role>
      <ShortName>12 Other Receivables</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>00000019 - Disclosure - 13 Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Taxes</Role>
      <ShortName>13 Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>00000020 - Disclosure - 14 Prepaid Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PrepaidExpenses</Role>
      <ShortName>14 Prepaid Expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>00000021 - Disclosure - 15 Judicial Deposits</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/JudicialDeposits</Role>
      <ShortName>15 Judicial Deposits</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>00000022 - Disclosure - 16 Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Investments</Role>
      <ShortName>16 Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>00000023 - Disclosure - 17 Property, Plant and Equipment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PropertyPlantAndEquipment</Role>
      <ShortName>17 Property, Plant and Equipment</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>00000024 - Disclosure - 18 Intangible assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/IntangibleAssets</Role>
      <ShortName>18 Intangible assets</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>00000025 - Disclosure - 19 Payroll, Social Charges and Accruals</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PayrollSocialChargesAndAccruals</Role>
      <ShortName>19 Payroll, Social Charges and Accruals</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>00000026 - Disclosure - 20 Accounts Payable to Suppliers</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsPayableToSuppliers</Role>
      <ShortName>20 Accounts Payable to Suppliers</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>00000027 - Disclosure - 21 Loans and Financing</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/LoansAndFinancing</Role>
      <ShortName>21 Loans and Financing</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>00000028 - Disclosure - 22 Debentures</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Debentures</Role>
      <ShortName>22 Debentures</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>28</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>00000029 - Disclosure - 23 Post-employment Benefits</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefits</Role>
      <ShortName>23 Post-employment Benefits</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>29</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>00000030 - Disclosure - 24 Sectorial Charges Payable</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/SectorialChargesPayable</Role>
      <ShortName>24 Sectorial Charges Payable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>30</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>00000031 - Disclosure - 25 Research and Development and Energy Efficiency</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ResearchAndDevelopmentAndEnergyEfficiency</Role>
      <ShortName>25 Research and Development and Energy Efficiency</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>00000032 - Disclosure - 26 Accounts Payable Related to Concessions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsPayableRelatedToConcessions</Role>
      <ShortName>26 Accounts Payable Related to Concessions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>32</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>00000033 - Disclosure - 27 Right-of-use asset and lease liability</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Right-of-useAssetAndLeaseLiability</Role>
      <ShortName>27 Right-of-use asset and lease liability</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>33</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>00000034 - Disclosure - 28 Other Accounts Payable</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OtherAccountsPayable</Role>
      <ShortName>28 Other Accounts Payable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>00000035 - Disclosure - 29 Provisions for Legal Claims and Contingent Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ProvisionsForLegalClaimsAndContingentLiabilities</Role>
      <ShortName>29 Provisions for Legal Claims and Contingent Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>00000036 - Disclosure - 30 Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Equity</Role>
      <ShortName>30 Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>00000037 - Disclosure - 31 Net Operating Revenue</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/NetOperatingRevenue</Role>
      <ShortName>31 Net Operating Revenue</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>00000038 - Disclosure - 32 Operating Costs and Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingCostsAndExpenses</Role>
      <ShortName>32 Operating Costs and Expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>00000039 - Disclosure - 33 Financial Results</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialResults</Role>
      <ShortName>33 Financial Results</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>00000040 - Disclosure - 34 Operating Segments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingSegments</Role>
      <ShortName>34 Operating Segments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>00000041 - Disclosure - 35 Financial Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstruments</Role>
      <ShortName>35 Financial Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>00000042 - Disclosure - 36 Related Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/RelatedPartyTransactions</Role>
      <ShortName>36 Related Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>00000043 - Disclosure - 37 Commitments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Commitments</Role>
      <ShortName>37 Commitments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>00000044 - Disclosure - 38 Insurance</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Insurance</Role>
      <ShortName>38 Insurance</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>00000045 - Disclosure - 39 Additional information to the Statement of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AdditionalInformationToStatementOfCashFlows</Role>
      <ShortName>39 Additional information to the Statement of Cash Flows</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>00000046 - Disclosure - 40.Assets held for sale and discontinued operations.</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AssetsHeldForSaleAndDiscontinuedOperations.</Role>
      <ShortName>40.Assets held for sale and discontinued operations.</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>00000047 - Disclosure - 41 Subsequent events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/SubsequentEvents</Role>
      <ShortName>41 Subsequent events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>00000048 - Disclosure - 42 Condensed individual financial information of Companhia Paranaense de Energia - Copel</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-Copel</Role>
      <ShortName>42 Condensed individual financial information of Companhia Paranaense de Energia - Copel</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>00000049 - Disclosure - 4 Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/SignificantAccountingPoliciesPolicies</Role>
      <ShortName>4 Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://copel.com/role/SignificantAccountingPolicies</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>00000050 - Disclosure - 1 Operations (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperationsTables</Role>
      <ShortName>1 Operations (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/Operations</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>00000051 - Disclosure - 2 Concessions and Authorizations (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ConcessionsAndAuthorizationsTables</Role>
      <ShortName>2 Concessions and Authorizations (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/ConcessionsAndAuthorizations</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>00000052 - Disclosure - 3 Basis of Preparation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/BasisOfPreparationTables</Role>
      <ShortName>3 Basis of Preparation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/BasisOfPreparation</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>00000053 - Disclosure - 5 Cash and Cash Equivalents (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CashAndCashEquivalentsTables</Role>
      <ShortName>5 Cash and Cash Equivalents (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/CashAndCashEquivalents</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>00000054 - Disclosure - 6 Bonds and Securities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/BondsAndSecuritiesTables</Role>
      <ShortName>6 Bonds and Securities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/BondsAndSecurities</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>00000055 - Disclosure - 7 Trade Accounts Receivables (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/TradeAccountsReceivablesTables</Role>
      <ShortName>7 Trade Accounts Receivables (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/TradeAccountsReceivable</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>00000056 - Disclosure - 8 CRC Transferred to the Parana State Government (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CrcTransferredToParanaStateGovernmentTables</Role>
      <ShortName>8 CRC Transferred to the Parana State Government (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/CrcTransferredToParanaStateGovernment</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>00000057 - Disclosure - 9 Net Sectorial Financial Assets and Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/NetSectorialFinancialAssetsAndLiabilitiesTables</Role>
      <ShortName>9 Net Sectorial Financial Assets and Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/NetSectorialFinancialAssetsAndLiabilities</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>00000058 - Disclosure - 10 Accounts Receivable Concessions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsReceivableConcessionsTables</Role>
      <ShortName>10 Accounts Receivable Concessions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>00000059 - Disclosure - 11 Contract Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ContractAssetsTables</Role>
      <ShortName>11 Contract Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/ContractAssets</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>00000060 - Disclosure - 12 Other Receivables (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OtherReceivablesTables</Role>
      <ShortName>12 Other Receivables (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/OtherReceivables</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>00000061 - Disclosure - 13 Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/TaxesTables</Role>
      <ShortName>13 Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/Taxes</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>00000062 - Disclosure - 14 Prepaid Expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PrepaidExpensesTables</Role>
      <ShortName>14 Prepaid Expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/PrepaidExpenses</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>00000063 - Disclosure - 15 Judicial Deposits (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/JudicialDepositsTables</Role>
      <ShortName>15 Judicial Deposits (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/JudicialDeposits</ParentRole>
      <Position>63</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>00000064 - Disclosure - 16 Investiments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/InvestimentsTables</Role>
      <ShortName>16 Investiments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>00000065 - Disclosure - 17. Property, Plant and Equipment (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PropertyPlantAndEquipmentTables</Role>
      <ShortName>17. Property, Plant and Equipment (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>00000066 - Disclosure - 18 Intangible Assets (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/IntangibleAssetsTables</Role>
      <ShortName>18 Intangible Assets (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>00000067 - Disclosure - 19 Payroll, Social Charges and Accruals (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PayrollSocialChargesAndAccrualsTables</Role>
      <ShortName>19 Payroll, Social Charges and Accruals (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/PayrollSocialChargesAndAccruals</ParentRole>
      <Position>67</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>00000068 - Disclosure - 20 Accounts payable to suppliers (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsPayableToSuppliersTables</Role>
      <ShortName>20 Accounts payable to suppliers (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>00000069 - Disclosure - 21 Loans and Financing (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/LoansAndFinancingTables</Role>
      <ShortName>21 Loans and Financing (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/LoansAndFinancing</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>00000070 - Disclosure - 22 Debentures (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/DebenturesTables</Role>
      <ShortName>22 Debentures (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/Debentures</ParentRole>
      <Position>70</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>00000071 - Disclosure - 23 Post-Employment Benefits (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsTables</Role>
      <ShortName>23 Post-Employment Benefits (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>00000072 - Disclosure - 24 Sectorial Charges Payable (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/SectorialChargesPayableTables</Role>
      <ShortName>24 Sectorial Charges Payable (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/SectorialChargesPayable</ParentRole>
      <Position>72</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>00000073 - Disclosure - 25 Research and Development and Energy Efficiency (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ResearchAndDevelopmentAndEnergyEfficiencyTables</Role>
      <ShortName>25 Research and Development and Energy Efficiency (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/ResearchAndDevelopmentAndEnergyEfficiency</ParentRole>
      <Position>73</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>00000074 - Disclosure - 26 Accounts Payable Related to Concessions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsPayableRelatedToConcessionsTables</Role>
      <ShortName>26 Accounts Payable Related to Concessions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/AccountsPayableRelatedToConcessions</ParentRole>
      <Position>74</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>00000075 - Disclosure - 27 Right-of-use asset and lease liability (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Right-of-useAssetAndLeaseLiabilityTables</Role>
      <ShortName>27 Right-of-use asset and lease liability (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/Right-of-useAssetAndLeaseLiability</ParentRole>
      <Position>75</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>00000076 - Disclosure - 28 Other Accounts Payable (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OtherAccountsPayableTables</Role>
      <ShortName>28 Other Accounts Payable (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/OtherAccountsPayable</ParentRole>
      <Position>76</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>00000077 - Disclosure - 29 Provisions for Legal Claims and Contingent Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ProvisionsForLegalClaimsAndContingentLiabilitiesTables</Role>
      <ShortName>29 Provisions for Legal Claims and Contingent Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/ProvisionsForLegalClaimsAndContingentLiabilities</ParentRole>
      <Position>77</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>00000078 - Disclosure - 30 Equity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/EquityTables</Role>
      <ShortName>30 Equity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/Equity</ParentRole>
      <Position>78</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>00000079 - Disclosure - 31 Net Operating Revenue (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/NetOperatingRevenueTables</Role>
      <ShortName>31 Net Operating Revenue (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/NetOperatingRevenue</ParentRole>
      <Position>79</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>00000080 - Disclosure - 32 Operating Costs and Expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingCostsAndExpensesTables</Role>
      <ShortName>32 Operating Costs and Expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/OperatingCostsAndExpenses</ParentRole>
      <Position>80</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>00000081 - Disclosure - 33 Financial Results (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialResultsTables</Role>
      <ShortName>33 Financial Results (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialResults</ParentRole>
      <Position>81</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>00000082 - Disclosure - 34 Operating Segments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingSegmentsTables</Role>
      <ShortName>34 Operating Segments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/OperatingSegments</ParentRole>
      <Position>82</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>00000083 - Disclosure - 35 Financial Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsTables</Role>
      <ShortName>35 Financial Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstruments</ParentRole>
      <Position>83</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>00000084 - Disclosure - 36 Related Party Transactions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/RelatedPartyTransactionsTables</Role>
      <ShortName>36 Related Party Transactions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/RelatedPartyTransactions</ParentRole>
      <Position>84</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>00000085 - Disclosure - 37 Commitments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CommitmentsTables</Role>
      <ShortName>37 Commitments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/Commitments</ParentRole>
      <Position>85</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>00000086 - Disclosure - 38 Insurance (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/InsuranceTables</Role>
      <ShortName>38 Insurance (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/Insurance</ParentRole>
      <Position>86</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>00000087 - Disclosure - 40 Assets held for sale and discontinued operations (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AssetsHeldForSaleAndDiscontinuedOperationsTables</Role>
      <ShortName>40 Assets held for sale and discontinued operations (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>00000088 - Disclosure - 42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelTables</Role>
      <ShortName>42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-Copel</ParentRole>
      <Position>88</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>00000089 - Disclosure - 1 Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperationsDetails</Role>
      <ShortName>1 Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperationsTables</ParentRole>
      <Position>89</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>00000090 - Disclosure - 1 Operations (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperationsDetails1</Role>
      <ShortName>1 Operations (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperationsTables</ParentRole>
      <Position>90</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>00000091 - Disclosure - 1 Operations (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperationsDetails2</Role>
      <ShortName>1 Operations (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperationsTables</ParentRole>
      <Position>91</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>00000092 - Disclosure - 1 Operations (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperationsDetails3</Role>
      <ShortName>1 Operations (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperationsTables</ParentRole>
      <Position>92</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>00000093 - Disclosure - 1 Operations (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperationsDetails4</Role>
      <ShortName>1 Operations (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperationsTables</ParentRole>
      <Position>93</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>00000094 - Disclosure - 1 Operations (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperationsDetailsNarrative</Role>
      <ShortName>1 Operations (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperationsTables</ParentRole>
      <Position>94</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>00000095 - Disclosure - 2 Concessions and Authorizations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ConcessionsAndAuthorizationsDetails</Role>
      <ShortName>2 Concessions and Authorizations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/ConcessionsAndAuthorizationsTables</ParentRole>
      <Position>95</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>00000096 - Disclosure - 2 Concessions and Authorizations (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ConcessionsAndAuthorizationsDetails1</Role>
      <ShortName>2 Concessions and Authorizations (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/ConcessionsAndAuthorizationsTables</ParentRole>
      <Position>96</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>00000097 - Disclosure - 2 Concessions and Authorizations (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ConcessionsAndAuthorizationsDetails2</Role>
      <ShortName>2 Concessions and Authorizations (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/ConcessionsAndAuthorizationsTables</ParentRole>
      <Position>97</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>00000098 - Disclosure - 2 Concessions and Authorizations (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ConcessionsAndAuthorizationsDetailsNarrative</Role>
      <ShortName>2 Concessions and Authorizations (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/ConcessionsAndAuthorizationsTables</ParentRole>
      <Position>98</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>00000099 - Disclosure - 3 Basis of Preparation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/BasisOfPreparationDetails</Role>
      <ShortName>3 Basis of Preparation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/BasisOfPreparationTables</ParentRole>
      <Position>99</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>00000100 - Disclosure - 3 Basis of Preparation (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/BasisOfPreparationDetails1</Role>
      <ShortName>3 Basis of Preparation (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/BasisOfPreparationTables</ParentRole>
      <Position>100</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>00000101 - Disclosure - 4 Significant Accounting Policies (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/SignificantAccountingPoliciesDetailsNarrative</Role>
      <ShortName>4 Significant Accounting Policies (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/SignificantAccountingPoliciesPolicies</ParentRole>
      <Position>101</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>00000102 - Disclosure - 5 Cash and Cash Equivalents (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CashAndCashEquivalentsDetails</Role>
      <ShortName>5 Cash and Cash Equivalents (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CashAndCashEquivalentsTables</ParentRole>
      <Position>102</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R103.htm</HtmlFileName>
      <LongName>00000103 - Disclosure - 5 Cash and Cash Equivalents (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CashAndCashEquivalentsDetailsNarrative</Role>
      <ShortName>5 Cash and Cash Equivalents (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CashAndCashEquivalentsTables</ParentRole>
      <Position>103</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R104.htm</HtmlFileName>
      <LongName>00000104 - Disclosure - 6 Bonds and Securities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/BondsAndSecuritiesDetails</Role>
      <ShortName>6 Bonds and Securities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/BondsAndSecuritiesTables</ParentRole>
      <Position>104</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R105.htm</HtmlFileName>
      <LongName>00000105 - Disclosure - 6 Bonds and Securities (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/BondsAndSecuritiesDetailsNarrative</Role>
      <ShortName>6 Bonds and Securities (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/BondsAndSecuritiesTables</ParentRole>
      <Position>105</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R106.htm</HtmlFileName>
      <LongName>00000106 - Disclosure - 7 Trade Accounts Receivable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/TradeAccountsReceivableDetails</Role>
      <ShortName>7 Trade Accounts Receivable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/TradeAccountsReceivablesTables</ParentRole>
      <Position>106</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R107.htm</HtmlFileName>
      <LongName>00000107 - Disclosure - 7 Trade Accounts Receivable (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/TradeAccountsReceivableDetails1</Role>
      <ShortName>7 Trade Accounts Receivable (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/TradeAccountsReceivablesTables</ParentRole>
      <Position>107</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R108.htm</HtmlFileName>
      <LongName>00000108 - Disclosure - 7 Trade Accounts Receivable (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/TradeAccountsReceivableDetailsNarrative</Role>
      <ShortName>7 Trade Accounts Receivable (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/TradeAccountsReceivablesTables</ParentRole>
      <Position>108</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R109.htm</HtmlFileName>
      <LongName>00000109 - Disclosure - 8 CRC Transferred to the Parana State Government (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CrcTransferredToParanaStateGovernmentDetails</Role>
      <ShortName>8 CRC Transferred to the Parana State Government (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CrcTransferredToParanaStateGovernmentTables</ParentRole>
      <Position>109</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R110.htm</HtmlFileName>
      <LongName>00000110 - Disclosure - 8 CRC Transferred to the Parana State Government (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CrcTransferredToParanaStateGovernmentDetails1</Role>
      <ShortName>8 CRC Transferred to the Parana State Government (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CrcTransferredToParanaStateGovernmentTables</ParentRole>
      <Position>110</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R111.htm</HtmlFileName>
      <LongName>00000111 - Disclosure - 8 CRC Transferred to the Parana State Government (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CrcTransferredToParanaStateGovernmentDetailsNarrative</Role>
      <ShortName>8 CRC Transferred to the Parana State Government (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CrcTransferredToParanaStateGovernmentTables</ParentRole>
      <Position>111</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R112.htm</HtmlFileName>
      <LongName>00000112 - Disclosure - 9 Net Sectorial Financial Assets and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/NetSectorialFinancialAssetsAndLiabilitiesDetails</Role>
      <ShortName>9 Net Sectorial Financial Assets and Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/NetSectorialFinancialAssetsAndLiabilitiesTables</ParentRole>
      <Position>112</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R113.htm</HtmlFileName>
      <LongName>00000113 - Disclosure - 9 Net Sectorial Financial Assets and Liabilities (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/NetSectorialFinancialAssetsAndLiabilitiesDetails1</Role>
      <ShortName>9 Net Sectorial Financial Assets and Liabilities (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/NetSectorialFinancialAssetsAndLiabilitiesTables</ParentRole>
      <Position>113</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R114.htm</HtmlFileName>
      <LongName>00000114 - Disclosure - 10 Accounts Receivables - Concessions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsReceivables-ConcessionsDetails</Role>
      <ShortName>10 Accounts Receivables - Concessions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AccountsReceivables-Concessions</ParentRole>
      <Position>114</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R115.htm</HtmlFileName>
      <LongName>00000115 - Disclosure - 10 Accounts Receivables - Concessions (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsReceivables-ConcessionsDetails1</Role>
      <ShortName>10 Accounts Receivables - Concessions (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AccountsReceivables-Concessions</ParentRole>
      <Position>115</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R116.htm</HtmlFileName>
      <LongName>00000116 - Disclosure - 10 Accounts Receivables - Concessions (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsReceivables-ConcessionsDetails2</Role>
      <ShortName>10 Accounts Receivables - Concessions (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AccountsReceivables-Concessions</ParentRole>
      <Position>116</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R117.htm</HtmlFileName>
      <LongName>00000117 - Disclosure - 10 Accounts Receivables - Concessions (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsReceivables-ConcessionsDetails3</Role>
      <ShortName>10 Accounts Receivables - Concessions (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AccountsReceivables-Concessions</ParentRole>
      <Position>117</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R118.htm</HtmlFileName>
      <LongName>00000118 - Disclosure - 10 Accounts Receivables - Concessions (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsReceivables-ConcessionsDetails4</Role>
      <ShortName>10 Accounts Receivables - Concessions (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AccountsReceivables-Concessions</ParentRole>
      <Position>118</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R119.htm</HtmlFileName>
      <LongName>00000119 - Disclosure - 10 Accounts Receivables - Concessions (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsReceivables-ConcessionsDetailsNarrative</Role>
      <ShortName>10 Accounts Receivables - Concessions (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AccountsReceivables-Concessions</ParentRole>
      <Position>119</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R120.htm</HtmlFileName>
      <LongName>00000120 - Disclosure - 11 Contract assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ContractAssetsDetails</Role>
      <ShortName>11 Contract assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>120</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R121.htm</HtmlFileName>
      <LongName>00000121 - Disclosure - 11 Contract assets (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ContractAssetsDetails1</Role>
      <ShortName>11 Contract assets (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>121</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R122.htm</HtmlFileName>
      <LongName>00000122 - Disclosure - 11 Contract assets (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ContractAssetsDetails2</Role>
      <ShortName>11 Contract assets (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>122</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R123.htm</HtmlFileName>
      <LongName>00000123 - Disclosure - 11 Contract assets (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ContractAssetsDetailsNarrative</Role>
      <ShortName>11 Contract assets (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>123</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R124.htm</HtmlFileName>
      <LongName>00000124 - Disclosure - 12 Other Receivables (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OtherReceivablesDetails</Role>
      <ShortName>12 Other Receivables (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OtherReceivablesTables</ParentRole>
      <Position>124</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R125.htm</HtmlFileName>
      <LongName>00000125 - Disclosure - 12 Other Receivables (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OtherReceivablesDetailsNarrative</Role>
      <ShortName>12 Other Receivables (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OtherReceivablesTables</ParentRole>
      <Position>125</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R126.htm</HtmlFileName>
      <LongName>00000126 - Disclosure - 13 Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/TaxesDetails</Role>
      <ShortName>13 Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/TaxesTables</ParentRole>
      <Position>126</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R127.htm</HtmlFileName>
      <LongName>00000127 - Disclosure - 13 Taxes (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/TaxesDetails1</Role>
      <ShortName>13 Taxes (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/TaxesTables</ParentRole>
      <Position>127</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R128.htm</HtmlFileName>
      <LongName>00000128 - Disclosure - 13 Taxes (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/TaxesDetails2</Role>
      <ShortName>13 Taxes (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/TaxesTables</ParentRole>
      <Position>128</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R129.htm</HtmlFileName>
      <LongName>00000129 - Disclosure - 13 Taxes (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/TaxesDetails3</Role>
      <ShortName>13 Taxes (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/TaxesTables</ParentRole>
      <Position>129</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R130.htm</HtmlFileName>
      <LongName>00000130 - Disclosure - 13 Taxes (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/TaxesDetails4</Role>
      <ShortName>13 Taxes (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/TaxesTables</ParentRole>
      <Position>130</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R131.htm</HtmlFileName>
      <LongName>00000131 - Disclosure - 13 Taxes (Details 5)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/TaxesDetails5</Role>
      <ShortName>13 Taxes (Details 5)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/TaxesTables</ParentRole>
      <Position>131</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R132.htm</HtmlFileName>
      <LongName>00000132 - Disclosure - 13 Taxes (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/TaxesDetailsNarrative</Role>
      <ShortName>13 Taxes (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/TaxesTables</ParentRole>
      <Position>132</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R133.htm</HtmlFileName>
      <LongName>00000133 - Disclosure - 14 Prepaid Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PrepaidExpensesDetails</Role>
      <ShortName>14 Prepaid Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/PrepaidExpensesTables</ParentRole>
      <Position>133</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R134.htm</HtmlFileName>
      <LongName>00000134 - Disclosure - 14 Prepaid Expenses (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PrepaidExpensesDetails1</Role>
      <ShortName>14 Prepaid Expenses (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/PrepaidExpensesTables</ParentRole>
      <Position>134</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R135.htm</HtmlFileName>
      <LongName>00000135 - Disclosure - 14 Prepaid Expenses (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PrepaidExpensesDetails2</Role>
      <ShortName>14 Prepaid Expenses (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/PrepaidExpensesTables</ParentRole>
      <Position>135</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R136.htm</HtmlFileName>
      <LongName>00000136 - Disclosure - 14 Prepaid Expenses (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PrepaidExpensesDetailsNarrative</Role>
      <ShortName>14 Prepaid Expenses (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/PrepaidExpensesTables</ParentRole>
      <Position>136</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R137.htm</HtmlFileName>
      <LongName>00000137 - Disclosure - 15 Judicial Deposits (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/JudicialDepositsDetails</Role>
      <ShortName>15 Judicial Deposits (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/JudicialDepositsTables</ParentRole>
      <Position>137</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R138.htm</HtmlFileName>
      <LongName>00000138 - Disclosure - 16 Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/InvestmentsDetails</Role>
      <ShortName>16 Investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Investments</ParentRole>
      <Position>138</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R139.htm</HtmlFileName>
      <LongName>00000139 - Disclosure - 16 Investments (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/InvestmentsDetails1</Role>
      <ShortName>16 Investments (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Investments</ParentRole>
      <Position>139</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R140.htm</HtmlFileName>
      <LongName>00000140 - Disclosure - 16 Investments (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/InvestmentsDetails2</Role>
      <ShortName>16 Investments (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Investments</ParentRole>
      <Position>140</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R141.htm</HtmlFileName>
      <LongName>00000141 - Disclosure - 16 Investments (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/InvestmentsDetails3</Role>
      <ShortName>16 Investments (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Investments</ParentRole>
      <Position>141</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R142.htm</HtmlFileName>
      <LongName>00000142 - Disclosure - 16 Investments (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/InvestmentsDetails4</Role>
      <ShortName>16 Investments (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Investments</ParentRole>
      <Position>142</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R143.htm</HtmlFileName>
      <LongName>00000143 - Disclosure - 16 Investments (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/InvestmentsDetailsNarrative</Role>
      <ShortName>16 Investments (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Investments</ParentRole>
      <Position>143</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R144.htm</HtmlFileName>
      <LongName>00000144 - Disclosure - 17 Property, Plant and Equipment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PropertyPlantAndEquipmentDetails</Role>
      <ShortName>17 Property, Plant and Equipment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/PropertyPlantAndEquipment</ParentRole>
      <Position>144</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R145.htm</HtmlFileName>
      <LongName>00000145 - Disclosure - 17 Property, Plant and Equipment (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PropertyPlantAndEquipmentDetails1</Role>
      <ShortName>17 Property, Plant and Equipment (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/PropertyPlantAndEquipment</ParentRole>
      <Position>145</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R146.htm</HtmlFileName>
      <LongName>00000146 - Disclosure - 17 Property, Plant and Equipment (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PropertyPlantAndEquipmentDetails2</Role>
      <ShortName>17 Property, Plant and Equipment (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/PropertyPlantAndEquipment</ParentRole>
      <Position>146</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R147.htm</HtmlFileName>
      <LongName>00000147 - Disclosure - 17 Property, Plant and Equipment (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PropertyPlantAndEquipmentDetails3</Role>
      <ShortName>17 Property, Plant and Equipment (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/PropertyPlantAndEquipment</ParentRole>
      <Position>147</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R148.htm</HtmlFileName>
      <LongName>00000148 - Disclosure - 17 Property, Plant and Equipment (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PropertyPlantAndEquipmentDetails4</Role>
      <ShortName>17 Property, Plant and Equipment (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/PropertyPlantAndEquipment</ParentRole>
      <Position>148</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R149.htm</HtmlFileName>
      <LongName>00000149 - Disclosure - 17 Property, Plant and Equipment (Details 5)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PropertyPlantAndEquipmentDetails5</Role>
      <ShortName>17 Property, Plant and Equipment (Details 5)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/PropertyPlantAndEquipment</ParentRole>
      <Position>149</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R150.htm</HtmlFileName>
      <LongName>00000150 - Disclosure - 17 Property, Plant and Equipment (Details 6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PropertyPlantAndEquipmentDetails6</Role>
      <ShortName>17 Property, Plant and Equipment (Details 6)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/PropertyPlantAndEquipment</ParentRole>
      <Position>150</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R151.htm</HtmlFileName>
      <LongName>00000151 - Disclosure - 17 Property, Plant and Equipment (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PropertyPlantAndEquipmentDetailsNarrative</Role>
      <ShortName>17 Property, Plant and Equipment (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/PropertyPlantAndEquipment</ParentRole>
      <Position>151</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R152.htm</HtmlFileName>
      <LongName>00000152 - Disclosure - 18 Intangible assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/IntangibleAssetsDetails</Role>
      <ShortName>18 Intangible assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/IntangibleAssets</ParentRole>
      <Position>152</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R153.htm</HtmlFileName>
      <LongName>00000153 - Disclosure - 18 Intangible assets (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/IntangibleAssetsDetails1</Role>
      <ShortName>18 Intangible assets (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/IntangibleAssets</ParentRole>
      <Position>153</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R154.htm</HtmlFileName>
      <LongName>00000154 - Disclosure - 19 Payroll, Social Charges and Accruals (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/PayrollSocialChargesAndAccrualsDetails</Role>
      <ShortName>19 Payroll, Social Charges and Accruals (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/PayrollSocialChargesAndAccrualsTables</ParentRole>
      <Position>154</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R155.htm</HtmlFileName>
      <LongName>00000155 - Disclosure - 20 Accounts Payable to Suppliers (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsPayableToSuppliersDetails</Role>
      <ShortName>20 Accounts Payable to Suppliers (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AccountsPayableToSuppliers</ParentRole>
      <Position>155</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R156.htm</HtmlFileName>
      <LongName>00000156 - Disclosure - 21 Loans and Financing (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/LoansAndFinancingDetails</Role>
      <ShortName>21 Loans and Financing (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/LoansAndFinancingTables</ParentRole>
      <Position>156</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R157.htm</HtmlFileName>
      <LongName>00000157 - Disclosure - 21 Loans and Financing (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/LoansAndFinancingDetails1</Role>
      <ShortName>21 Loans and Financing (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/LoansAndFinancingTables</ParentRole>
      <Position>157</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R158.htm</HtmlFileName>
      <LongName>00000158 - Disclosure - 21 Loans and Financing (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/LoansAndFinancingDetails2</Role>
      <ShortName>21 Loans and Financing (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/LoansAndFinancingTables</ParentRole>
      <Position>158</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R159.htm</HtmlFileName>
      <LongName>00000159 - Disclosure - 21 Loans and Financing (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/LoansAndFinancingDetails3</Role>
      <ShortName>21 Loans and Financing (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/LoansAndFinancingTables</ParentRole>
      <Position>159</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R160.htm</HtmlFileName>
      <LongName>00000160 - Disclosure - 21 Loans and Financing (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/LoansAndFinancingDetails4</Role>
      <ShortName>21 Loans and Financing (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/LoansAndFinancingTables</ParentRole>
      <Position>160</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R161.htm</HtmlFileName>
      <LongName>00000161 - Disclosure - 21 Loans and Financing (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/LoansAndFinancingDetailsNarrative</Role>
      <ShortName>21 Loans and Financing (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/LoansAndFinancingTables</ParentRole>
      <Position>161</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R162.htm</HtmlFileName>
      <LongName>00000162 - Disclosure - 22 Debentures (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/DebenturesDetails</Role>
      <ShortName>22 Debentures (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/DebenturesTables</ParentRole>
      <Position>162</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R163.htm</HtmlFileName>
      <LongName>00000163 - Disclosure - 22 Debentures (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/DebenturesDetails1</Role>
      <ShortName>22 Debentures (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/DebenturesTables</ParentRole>
      <Position>163</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R164.htm</HtmlFileName>
      <LongName>00000164 - Disclosure - 22 Debentures (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/DebenturesDetails2</Role>
      <ShortName>22 Debentures (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/DebenturesTables</ParentRole>
      <Position>164</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R165.htm</HtmlFileName>
      <LongName>00000165 - Disclosure - 22 Debentures (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/DebenturesDetails3</Role>
      <ShortName>22 Debentures (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/DebenturesTables</ParentRole>
      <Position>165</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R166.htm</HtmlFileName>
      <LongName>00000166 - Disclosure - 23 Post-employment Benefits (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails</Role>
      <ShortName>23 Post-employment Benefits (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>166</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R167.htm</HtmlFileName>
      <LongName>00000167 - Disclosure - 23 Post-employment Benefits (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails1</Role>
      <ShortName>23 Post-employment Benefits (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>167</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R168.htm</HtmlFileName>
      <LongName>00000168 - Disclosure - 23 Post-employment Benefits (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails2</Role>
      <ShortName>23 Post-employment Benefits (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>168</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R169.htm</HtmlFileName>
      <LongName>00000169 - Disclosure - 23 Post-employment Benefits (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails3</Role>
      <ShortName>23 Post-employment Benefits (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>169</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R170.htm</HtmlFileName>
      <LongName>00000170 - Disclosure - 23 Post-employment Benefits (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails4</Role>
      <ShortName>23 Post-employment Benefits (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>170</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R171.htm</HtmlFileName>
      <LongName>00000171 - Disclosure - 23 Post-employment Benefits (Details 5)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails5</Role>
      <ShortName>23 Post-employment Benefits (Details 5)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>171</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R172.htm</HtmlFileName>
      <LongName>00000172 - Disclosure - 23 Post-employment Benefits (Details 6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails6</Role>
      <ShortName>23 Post-employment Benefits (Details 6)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>172</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R173.htm</HtmlFileName>
      <LongName>00000173 - Disclosure - 23 Post-employment Benefits (Details 7)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails7</Role>
      <ShortName>23 Post-employment Benefits (Details 7)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>173</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R174.htm</HtmlFileName>
      <LongName>00000174 - Disclosure - 23 Post-employment Benefits (Details 8)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails8</Role>
      <ShortName>23 Post-employment Benefits (Details 8)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>174</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R175.htm</HtmlFileName>
      <LongName>00000175 - Disclosure - 23 Post-employment Benefits (Details 9)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails9</Role>
      <ShortName>23 Post-employment Benefits (Details 9)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>175</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R176.htm</HtmlFileName>
      <LongName>00000176 - Disclosure - 23 Post-employment Benefits (Details 10)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails10</Role>
      <ShortName>23 Post-employment Benefits (Details 10)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>176</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R177.htm</HtmlFileName>
      <LongName>00000177 - Disclosure - 23 Post-employment Benefits (Details 11)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails11</Role>
      <ShortName>23 Post-employment Benefits (Details 11)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>177</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R178.htm</HtmlFileName>
      <LongName>00000178 - Disclosure - 23 Post-employment Benefits (Details 12)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails12</Role>
      <ShortName>23 Post-employment Benefits (Details 12)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>178</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R179.htm</HtmlFileName>
      <LongName>00000179 - Disclosure - 23 Post-employment Benefits (Details 13)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetails13</Role>
      <ShortName>23 Post-employment Benefits (Details 13)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>179</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R180.htm</HtmlFileName>
      <LongName>00000180 - Disclosure - 23 Post-employment Benefits (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Post-employmentBenefitsDetailsNarrative</Role>
      <ShortName>23 Post-employment Benefits (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Post-employmentBenefits</ParentRole>
      <Position>180</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R181.htm</HtmlFileName>
      <LongName>00000181 - Disclosure - 24 Sectorial Charges Payable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/SectorialChargesPayableDetails</Role>
      <ShortName>24 Sectorial Charges Payable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/SectorialChargesPayableTables</ParentRole>
      <Position>181</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R182.htm</HtmlFileName>
      <LongName>00000182 - Disclosure - 25 Research and Development and Energy Efficiency (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ResearchAndDevelopmentAndEnergyEfficiencyDetails</Role>
      <ShortName>25 Research and Development and Energy Efficiency (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/ResearchAndDevelopmentAndEnergyEfficiencyTables</ParentRole>
      <Position>182</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R183.htm</HtmlFileName>
      <LongName>00000183 - Disclosure - 25 Research and Development and Energy Efficiency (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ResearchAndDevelopmentAndEnergyEfficiencyDetails1</Role>
      <ShortName>25 Research and Development and Energy Efficiency (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/ResearchAndDevelopmentAndEnergyEfficiencyTables</ParentRole>
      <Position>183</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R184.htm</HtmlFileName>
      <LongName>00000184 - Disclosure - 26 Accounts Payable Related to Concessions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsPayableRelatedToConcessionsDetails</Role>
      <ShortName>26 Accounts Payable Related to Concessions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AccountsPayableRelatedToConcessionsTables</ParentRole>
      <Position>184</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R185.htm</HtmlFileName>
      <LongName>00000185 - Disclosure - 26 Accounts Payable Related to Concessions (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsPayableRelatedToConcessionsDetails1</Role>
      <ShortName>26 Accounts Payable Related to Concessions (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AccountsPayableRelatedToConcessionsTables</ParentRole>
      <Position>185</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R186.htm</HtmlFileName>
      <LongName>00000186 - Disclosure - 26 Accounts Payable Related to Concessions (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AccountsPayableRelatedToConcessionsDetails2</Role>
      <ShortName>26 Accounts Payable Related to Concessions (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AccountsPayableRelatedToConcessionsTables</ParentRole>
      <Position>186</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R187.htm</HtmlFileName>
      <LongName>00000187 - Disclosure - 27 Right-of-use asset and lease liability (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Right-of-useAssetAndLeaseLiabilityDetails</Role>
      <ShortName>27 Right-of-use asset and lease liability (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Right-of-useAssetAndLeaseLiabilityTables</ParentRole>
      <Position>187</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R188.htm</HtmlFileName>
      <LongName>00000188 - Disclosure - 27 Right-of-use asset and lease liability (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Right-of-useAssetAndLeaseLiabilityDetails1</Role>
      <ShortName>27 Right-of-use asset and lease liability (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Right-of-useAssetAndLeaseLiabilityTables</ParentRole>
      <Position>188</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R189.htm</HtmlFileName>
      <LongName>00000189 - Disclosure - 27 Right-of-use asset and lease liability (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Right-of-useAssetAndLeaseLiabilityDetails2</Role>
      <ShortName>27 Right-of-use asset and lease liability (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Right-of-useAssetAndLeaseLiabilityTables</ParentRole>
      <Position>189</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R190.htm</HtmlFileName>
      <LongName>00000190 - Disclosure - 27 Right-of-use asset and lease liability (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Right-of-useAssetAndLeaseLiabilityDetails3</Role>
      <ShortName>27 Right-of-use asset and lease liability (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Right-of-useAssetAndLeaseLiabilityTables</ParentRole>
      <Position>190</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R191.htm</HtmlFileName>
      <LongName>00000191 - Disclosure - 27 Right-of-use asset and lease liability (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Right-of-useAssetAndLeaseLiabilityDetails4</Role>
      <ShortName>27 Right-of-use asset and lease liability (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Right-of-useAssetAndLeaseLiabilityTables</ParentRole>
      <Position>191</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R192.htm</HtmlFileName>
      <LongName>00000192 - Disclosure - 27 Right-of-use asset and lease liability (Details 5)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/Right-of-useAssetAndLeaseLiabilityDetails5</Role>
      <ShortName>27 Right-of-use asset and lease liability (Details 5)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/Right-of-useAssetAndLeaseLiabilityTables</ParentRole>
      <Position>192</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R193.htm</HtmlFileName>
      <LongName>00000193 - Disclosure - 28 Other Accounts Payable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OtherAccountsPayableDetails</Role>
      <ShortName>28 Other Accounts Payable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OtherAccountsPayableTables</ParentRole>
      <Position>193</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R194.htm</HtmlFileName>
      <LongName>00000194 - Disclosure - 29 Provisions for Legal Claims and Contingent Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ProvisionsForLegalClaimsAndContingentLiabilitiesDetails</Role>
      <ShortName>29 Provisions for Legal Claims and Contingent Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/ProvisionsForLegalClaimsAndContingentLiabilitiesTables</ParentRole>
      <Position>194</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R195.htm</HtmlFileName>
      <LongName>00000195 - Disclosure - 29 Provisions for Legal Claims and Contingent Liabilities (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/ProvisionsForLegalClaimsAndContingentLiabilitiesDetails1</Role>
      <ShortName>29 Provisions for Legal Claims and Contingent Liabilities (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/ProvisionsForLegalClaimsAndContingentLiabilitiesTables</ParentRole>
      <Position>195</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R196.htm</HtmlFileName>
      <LongName>00000196 - Disclosure - 30 Equity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/EquityDetails</Role>
      <ShortName>30 Equity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/EquityTables</ParentRole>
      <Position>196</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R197.htm</HtmlFileName>
      <LongName>00000197 - Disclosure - 30 Equity (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/EquityDetails1</Role>
      <ShortName>30 Equity (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/EquityTables</ParentRole>
      <Position>197</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R198.htm</HtmlFileName>
      <LongName>00000198 - Disclosure - 30 Equity (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/EquityDetails2</Role>
      <ShortName>30 Equity (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/EquityTables</ParentRole>
      <Position>198</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R199.htm</HtmlFileName>
      <LongName>00000199 - Disclosure - 30 Equity (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/EquityDetails3</Role>
      <ShortName>30 Equity (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/EquityTables</ParentRole>
      <Position>199</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R200.htm</HtmlFileName>
      <LongName>00000200 - Disclosure - 30 Equity (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/EquityDetailsNarrative</Role>
      <ShortName>30 Equity (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/EquityTables</ParentRole>
      <Position>200</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R201.htm</HtmlFileName>
      <LongName>00000201 - Disclosure - 31 Net Operating Revenue (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/NetOperatingRevenueDetails</Role>
      <ShortName>31 Net Operating Revenue (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/NetOperatingRevenueTables</ParentRole>
      <Position>201</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R202.htm</HtmlFileName>
      <LongName>00000202 - Disclosure - 31 Net Operating Revenue (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/NetOperatingRevenueDetails1</Role>
      <ShortName>31 Net Operating Revenue (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/NetOperatingRevenueTables</ParentRole>
      <Position>202</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R203.htm</HtmlFileName>
      <LongName>00000203 - Disclosure - 31 Net Operating Revenue (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/NetOperatingRevenueDetails2</Role>
      <ShortName>31 Net Operating Revenue (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/NetOperatingRevenueTables</ParentRole>
      <Position>203</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R204.htm</HtmlFileName>
      <LongName>00000204 - Disclosure - 31 Net Operating Revenue (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/NetOperatingRevenueDetails3</Role>
      <ShortName>31 Net Operating Revenue (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/NetOperatingRevenueTables</ParentRole>
      <Position>204</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R205.htm</HtmlFileName>
      <LongName>00000205 - Disclosure - 31 Net Operating Revenue (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/NetOperatingRevenueDetails4</Role>
      <ShortName>31 Net Operating Revenue (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/NetOperatingRevenueTables</ParentRole>
      <Position>205</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R206.htm</HtmlFileName>
      <LongName>00000206 - Disclosure - 31 Net Operating Revenue (Details 5)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/NetOperatingRevenueDetails5</Role>
      <ShortName>31 Net Operating Revenue (Details 5)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/NetOperatingRevenueTables</ParentRole>
      <Position>206</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R207.htm</HtmlFileName>
      <LongName>00000207 - Disclosure - 31 Net Operating Revenue (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/NetOperatingRevenueDetailsNarrative</Role>
      <ShortName>31 Net Operating Revenue (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/NetOperatingRevenueTables</ParentRole>
      <Position>207</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R208.htm</HtmlFileName>
      <LongName>00000208 - Disclosure - 32 Operating Costs and Expenses (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingCostsAndExpensesDetails</Role>
      <ShortName>32 Operating Costs and Expenses (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperatingCostsAndExpensesTables</ParentRole>
      <Position>208</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R209.htm</HtmlFileName>
      <LongName>00000209 - Disclosure - 32 Operating Costs and Expenses (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingCostsAndExpensesDetails1</Role>
      <ShortName>32 Operating Costs and Expenses (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperatingCostsAndExpensesTables</ParentRole>
      <Position>209</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R210.htm</HtmlFileName>
      <LongName>00000210 - Disclosure - 32 Operating Costs and Expenses (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingCostsAndExpensesDetails2</Role>
      <ShortName>32 Operating Costs and Expenses (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperatingCostsAndExpensesTables</ParentRole>
      <Position>210</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R211.htm</HtmlFileName>
      <LongName>00000211 - Disclosure - 32 Operating Costs and Expenses (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingCostsAndExpensesDetails3</Role>
      <ShortName>32 Operating Costs and Expenses (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperatingCostsAndExpensesTables</ParentRole>
      <Position>211</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R212.htm</HtmlFileName>
      <LongName>00000212 - Disclosure - 32 Operating Costs and Expenses (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingCostsAndExpensesDetails4</Role>
      <ShortName>32 Operating Costs and Expenses (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperatingCostsAndExpensesTables</ParentRole>
      <Position>212</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R213.htm</HtmlFileName>
      <LongName>00000213 - Disclosure - 32 Operating Costs and Expenses (Details 5)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingCostsAndExpensesDetails5</Role>
      <ShortName>32 Operating Costs and Expenses (Details 5)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperatingCostsAndExpensesTables</ParentRole>
      <Position>213</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R214.htm</HtmlFileName>
      <LongName>00000214 - Disclosure - 32 Operating Costs and Expenses (Details 6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingCostsAndExpensesDetails6</Role>
      <ShortName>32 Operating Costs and Expenses (Details 6)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperatingCostsAndExpensesTables</ParentRole>
      <Position>214</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R215.htm</HtmlFileName>
      <LongName>00000215 - Disclosure - 32 Operating Costs and Expenses (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingCostsAndExpensesDetailsNarrative</Role>
      <ShortName>32 Operating Costs and Expenses (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperatingCostsAndExpensesTables</ParentRole>
      <Position>215</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R216.htm</HtmlFileName>
      <LongName>00000216 - Disclosure - 33 Financial Results (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialResultsDetails</Role>
      <ShortName>33 Financial Results (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialResultsTables</ParentRole>
      <Position>216</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R217.htm</HtmlFileName>
      <LongName>00000217 - Disclosure - 34 Operating Segments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingSegmentsDetails</Role>
      <ShortName>34 Operating Segments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperatingSegmentsTables</ParentRole>
      <Position>217</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R218.htm</HtmlFileName>
      <LongName>00000218 - Disclosure - 34 Operating Segments (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingSegmentsDetails1</Role>
      <ShortName>34 Operating Segments (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperatingSegmentsTables</ParentRole>
      <Position>218</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R219.htm</HtmlFileName>
      <LongName>00000219 - Disclosure - 34 Operating Segments (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/OperatingSegmentsDetails2</Role>
      <ShortName>34 Operating Segments (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/OperatingSegmentsTables</ParentRole>
      <Position>219</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R220.htm</HtmlFileName>
      <LongName>00000220 - Disclosure - 35 Financial Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsDetails</Role>
      <ShortName>35 Financial Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstrumentsTables</ParentRole>
      <Position>220</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R221.htm</HtmlFileName>
      <LongName>00000221 - Disclosure - 35 Financial Instruments (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsDetails1</Role>
      <ShortName>35 Financial Instruments (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstrumentsTables</ParentRole>
      <Position>221</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R222.htm</HtmlFileName>
      <LongName>00000222 - Disclosure - 35 Financial Instruments (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsDetails2</Role>
      <ShortName>35 Financial Instruments (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstrumentsTables</ParentRole>
      <Position>222</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R223.htm</HtmlFileName>
      <LongName>00000223 - Disclosure - 35 Financial Instruments (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsDetails3</Role>
      <ShortName>35 Financial Instruments (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstrumentsTables</ParentRole>
      <Position>223</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R224.htm</HtmlFileName>
      <LongName>00000224 - Disclosure - 35 Financial Instruments (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsDetails4</Role>
      <ShortName>35 Financial Instruments (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstrumentsTables</ParentRole>
      <Position>224</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R225.htm</HtmlFileName>
      <LongName>00000225 - Disclosure - 35 Financial Instruments (Details 5)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsDetails5</Role>
      <ShortName>35 Financial Instruments (Details 5)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstrumentsTables</ParentRole>
      <Position>225</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R226.htm</HtmlFileName>
      <LongName>00000226 - Disclosure - 35 Financial Instruments (Details 6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsDetails6</Role>
      <ShortName>35 Financial Instruments (Details 6)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstrumentsTables</ParentRole>
      <Position>226</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R227.htm</HtmlFileName>
      <LongName>00000227 - Disclosure - 35 Financial Instruments (Details 7)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsDetails7</Role>
      <ShortName>35 Financial Instruments (Details 7)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstrumentsTables</ParentRole>
      <Position>227</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R228.htm</HtmlFileName>
      <LongName>00000228 - Disclosure - 35 Financial Instruments (Details 8)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsDetails8</Role>
      <ShortName>35 Financial Instruments (Details 8)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstrumentsTables</ParentRole>
      <Position>228</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R229.htm</HtmlFileName>
      <LongName>00000229 - Disclosure - 35 Financial Instruments (Details 9)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsDetails9</Role>
      <ShortName>35 Financial Instruments (Details 9)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstrumentsTables</ParentRole>
      <Position>229</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R230.htm</HtmlFileName>
      <LongName>00000230 - Disclosure - 35 Financial Instruments (Details 10)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsDetails10</Role>
      <ShortName>35 Financial Instruments (Details 10)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstrumentsTables</ParentRole>
      <Position>230</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R231.htm</HtmlFileName>
      <LongName>00000231 - Disclosure - 35 Financial Instruments (Details 11)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsDetails11</Role>
      <ShortName>35 Financial Instruments (Details 11)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstrumentsTables</ParentRole>
      <Position>231</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R232.htm</HtmlFileName>
      <LongName>00000232 - Disclosure - 35 Financial Instruments (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/FinancialInstrumentsDetailsNarrative</Role>
      <ShortName>35 Financial Instruments (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/FinancialInstrumentsTables</ParentRole>
      <Position>232</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R233.htm</HtmlFileName>
      <LongName>00000233 - Disclosure - 36 Related Party Transactions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/RelatedPartyTransactionsDetails</Role>
      <ShortName>36 Related Party Transactions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/RelatedPartyTransactionsTables</ParentRole>
      <Position>233</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R234.htm</HtmlFileName>
      <LongName>00000234 - Disclosure - 36 Related Party Transactions (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/RelatedPartyTransactionsDetails1</Role>
      <ShortName>36 Related Party Transactions (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/RelatedPartyTransactionsTables</ParentRole>
      <Position>234</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R235.htm</HtmlFileName>
      <LongName>00000235 - Disclosure - 36 Related Party Transactions (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/RelatedPartyTransactionsDetails2</Role>
      <ShortName>36 Related Party Transactions (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/RelatedPartyTransactionsTables</ParentRole>
      <Position>235</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R236.htm</HtmlFileName>
      <LongName>00000236 - Disclosure - 36 Related Party Transactions (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/RelatedPartyTransactionsDetailsNarrative</Role>
      <ShortName>36 Related Party Transactions (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/RelatedPartyTransactionsTables</ParentRole>
      <Position>236</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R237.htm</HtmlFileName>
      <LongName>00000237 - Disclosure - 37 Commitments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CommitmentsDetails</Role>
      <ShortName>37 Commitments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CommitmentsTables</ParentRole>
      <Position>237</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R238.htm</HtmlFileName>
      <LongName>00000238 - Disclosure - 38 Insurance (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/InsuranceDetails</Role>
      <ShortName>38 Insurance (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/InsuranceTables</ParentRole>
      <Position>238</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R239.htm</HtmlFileName>
      <LongName>00000239 - Disclosure - 38 Insurance (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/InsuranceDetailsNarrative</Role>
      <ShortName>38 Insurance (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/InsuranceTables</ParentRole>
      <Position>239</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R240.htm</HtmlFileName>
      <LongName>00000240 - Disclosure - 39 Additional information to the Statement of Cash Flows (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AdditionalInformationToStatementOfCashFlowsDetailsNarrative</Role>
      <ShortName>39 Additional information to the Statement of Cash Flows (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AdditionalInformationToStatementOfCashFlows</ParentRole>
      <Position>240</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R241.htm</HtmlFileName>
      <LongName>00000241 - Disclosure - 40 Assets held for sale and discontinued operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AssetsHeldForSaleAndDiscontinuedOperationsDetails</Role>
      <ShortName>40 Assets held for sale and discontinued operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AssetsHeldForSaleAndDiscontinuedOperationsTables</ParentRole>
      <Position>241</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R242.htm</HtmlFileName>
      <LongName>00000242 - Disclosure - 40 Assets held for sale and discontinued operations (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AssetsHeldForSaleAndDiscontinuedOperationsDetails1</Role>
      <ShortName>40 Assets held for sale and discontinued operations (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AssetsHeldForSaleAndDiscontinuedOperationsTables</ParentRole>
      <Position>242</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R243.htm</HtmlFileName>
      <LongName>00000243 - Disclosure - 40 Assets held for sale and discontinued operations (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AssetsHeldForSaleAndDiscontinuedOperationsDetails2</Role>
      <ShortName>40 Assets held for sale and discontinued operations (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AssetsHeldForSaleAndDiscontinuedOperationsTables</ParentRole>
      <Position>243</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R244.htm</HtmlFileName>
      <LongName>00000244 - Disclosure - 40 Assets held for sale and discontinued operations (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/AssetsHeldForSaleAndDiscontinuedOperationsDetailsNarrative</Role>
      <ShortName>40 Assets held for sale and discontinued operations (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/AssetsHeldForSaleAndDiscontinuedOperationsTables</ParentRole>
      <Position>244</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R245.htm</HtmlFileName>
      <LongName>00000245 - Disclosure - 41 Subsequent events (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/SubsequentEventsDetailsNarrative</Role>
      <ShortName>41 Subsequent events (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/SubsequentEvents</ParentRole>
      <Position>245</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R246.htm</HtmlFileName>
      <LongName>00000246 - Disclosure - 42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelDetails</Role>
      <ShortName>42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelTables</ParentRole>
      <Position>246</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R247.htm</HtmlFileName>
      <LongName>00000247 - Disclosure - 42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelDetails1</Role>
      <ShortName>42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelTables</ParentRole>
      <Position>247</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R248.htm</HtmlFileName>
      <LongName>00000248 - Disclosure - 42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 2)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelDetails2</Role>
      <ShortName>42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 2)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelTables</ParentRole>
      <Position>248</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R249.htm</HtmlFileName>
      <LongName>00000249 - Disclosure - 42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 3)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelDetails3</Role>
      <ShortName>42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 3)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelTables</ParentRole>
      <Position>249</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R250.htm</HtmlFileName>
      <LongName>00000250 - Disclosure - 42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 4)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelDetails4</Role>
      <ShortName>42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 4)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelTables</ParentRole>
      <Position>250</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R251.htm</HtmlFileName>
      <LongName>00000251 - Disclosure - 42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 5)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelDetails5</Role>
      <ShortName>42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 5)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelTables</ParentRole>
      <Position>251</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R252.htm</HtmlFileName>
      <LongName>00000252 - Disclosure - 42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 6)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelDetails6</Role>
      <ShortName>42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 6)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelTables</ParentRole>
      <Position>252</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R253.htm</HtmlFileName>
      <LongName>00000253 - Disclosure - 42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 7)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelDetails7</Role>
      <ShortName>42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 7)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelTables</ParentRole>
      <Position>253</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R254.htm</HtmlFileName>
      <LongName>00000254 - Disclosure - 42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 8)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelDetails8</Role>
      <ShortName>42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 8)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelTables</ParentRole>
      <Position>254</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R255.htm</HtmlFileName>
      <LongName>00000255 - Disclosure - 42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 9)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelDetails9</Role>
      <ShortName>42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details 9)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelTables</ParentRole>
      <Position>255</Position>
    </Report>
    <Report instance="elp-20201231.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R256.htm</HtmlFileName>
      <LongName>00000256 - Disclosure - 42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details Narrative)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelDetailsNarrative</Role>
      <ShortName>42 Condensed individual financial information of Companhia Paranaense de Energia - Copel (Details Narrative)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://copel.com/role/CondensedIndividualFinancialInformationOfCompanhiaParanaenseDeEnergia-CopelTables</ParentRole>
      <Position>256</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>elp-20201231.xml</File>
    <File>elp-20201231.xsd</File>
    <File>elp-20201231_cal.xml</File>
    <File>elp-20201231_def.xml</File>
    <File>elp-20201231_lab.xml</File>
    <File>elp-20201231_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://fasb.org/srt/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.ifrs.org/taxonomy/2020-03-16/ifrs-full</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/currency/2020-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
