<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.24.1.u1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>169</ContextCount>
  <ElementCount>229</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>41</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>5</UnitCount>
  <MyReports>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>100000 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>100010 - Statement - Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_StatementConsolidatedBalanceSheets</Role>
      <ShortName>Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>100020 - Statement - Consolidated Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_StatementConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Consolidated Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>100030 - Statement - Statements of Consolidated Income (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/StatementStatementsOfConsolidatedIncomeUnaudited</Role>
      <ShortName>Statements of Consolidated Income (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>100040 - Statement - Statements of Consolidated Comprehensive Income (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/StatementStatementsOfConsolidatedComprehensiveIncomeUnaudited</Role>
      <ShortName>Statements of Consolidated Comprehensive Income (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>100050 - Statement - Statements of Consolidated Cash Flows (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/StatementStatementsOfConsolidatedCashFlowsUnaudited</Role>
      <ShortName>Statements of Consolidated Cash Flows (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>100060 - Statement - Statements of Consolidated Shareholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_StatementStatementsOfConsolidatedShareholdersEquity</Role>
      <ShortName>Statements of Consolidated Shareholders' Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>100070 - Statement - Statements of Consolidated Shareholders' Equity (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_StatementStatementsOfConsolidatedShareholdersEquityParenthetical</Role>
      <ShortName>Statements of Consolidated Shareholders' Equity (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>100080 - Disclosure - Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureSignificantAccountingPolicies</Role>
      <ShortName>Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>100090 - Disclosure - Revenue</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureRevenue</Role>
      <ShortName>Revenue</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>100100 - Disclosure - Inventories, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosureInventoriesNet1</Role>
      <ShortName>Inventories, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>100110 - Disclosure - Property and Equipment, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosurePropertyAndEquipmentNet</Role>
      <ShortName>Property and Equipment, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>100120 - Disclosure - Contingent Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosureContingentLiabilities1</Role>
      <ShortName>Contingent Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>100130 - Disclosure - Pension Plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosurePensionPlans</Role>
      <ShortName>Pension Plans</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>100140 - Disclosure - Accumulated Other Comprehensive Income ("AOCI")</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeAOCI</Role>
      <ShortName>Accumulated Other Comprehensive Income ("AOCI")</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>100150 - Disclosure - Debt and Credit Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureDebtAndCreditArrangements</Role>
      <ShortName>Debt and Credit Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>100160 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureIncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>100170 - Disclosure - Computation of Earnings Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureComputationOfEarningsPerShare</Role>
      <ShortName>Computation of Earnings Per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>100180 - Disclosure - Goodwill and Other Intangibles</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureGoodwillAndOtherIntangibles</Role>
      <ShortName>Goodwill and Other Intangibles</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>100190 - Disclosure - Fair Value of Financial Assets and Liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureFairValueOfFinancialAssetsAndLiabilities</Role>
      <ShortName>Fair Value of Financial Assets and Liabilities</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>100200 - Disclosure - Segment Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureSegmentInformation</Role>
      <ShortName>Segment Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>100210 - Disclosure - Acquisitions of Businesses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosureAcquisitionsOfBusinesses1</Role>
      <ShortName>Acquisitions of Businesses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>100250 - Disclosure - Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureSignificantAccountingPolicies</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>100260 - Disclosure - Revenue (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureRevenueTables</Role>
      <ShortName>Revenue (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureRevenue</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>100270 - Disclosure - Inventories, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosureInventoriesNetTables</Role>
      <ShortName>Inventories, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.preformed.com/20240331/taxonomy/role/DisclosureInventoriesNet1</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>100280 - Disclosure - Property and Equipment, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosurePropertyAndEquipmentNetTables</Role>
      <ShortName>Property and Equipment, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.preformed.com/20240331/taxonomy/role/DisclosurePropertyAndEquipmentNet</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>100290 - Disclosure - Pension Plans (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosurePensionPlansTables</Role>
      <ShortName>Pension Plans (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosurePensionPlans</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>100300 - Disclosure - Accumulated Other Comprehensive Income ("AOCI") (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeAOCITables</Role>
      <ShortName>Accumulated Other Comprehensive Income ("AOCI") (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeAOCI</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>100350 - Disclosure - Computation of Earnings Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureComputationOfEarningsPerShareTables</Role>
      <ShortName>Computation of Earnings Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureComputationOfEarningsPerShare</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>100360 - Disclosure - Goodwill and Other Intangibles (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureGoodwillAndOtherIntangiblesTables</Role>
      <ShortName>Goodwill and Other Intangibles (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureGoodwillAndOtherIntangibles</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>100370 - Disclosure - Fair Value of Financial Assets and Liabilities (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureFairValueOfFinancialAssetsAndLiabilitiesTables</Role>
      <ShortName>Fair Value of Financial Assets and Liabilities (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureFairValueOfFinancialAssetsAndLiabilities</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>100380 - Disclosure - Segment Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureSegmentInformationTables</Role>
      <ShortName>Segment Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureSegmentInformation</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>100390 - Disclosure - Acquisitions of Businesses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosureAcquisitionsOfBusinessesTables</Role>
      <ShortName>Acquisitions of Businesses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.preformed.com/20240331/taxonomy/role/DisclosureAcquisitionsOfBusinesses1</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>100400 - Disclosure - Significant Accounting Policies - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureSignificantAccountingPoliciesAdditionalInformationDetail</Role>
      <ShortName>Significant Accounting Policies - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>34</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>100410 - Disclosure - Revenue - Revenues by Segment and Product Type (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureRevenueRevenuesBySegmentAndProductTypeDetail</Role>
      <ShortName>Revenue - Revenues by Segment and Product Type (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>35</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>100420 - Disclosure - Revenue - Schedule of Change in Allowance for Credit Losses (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosureRevenueScheduleOfChangeInAllowanceForCreditLossesDetail</Role>
      <ShortName>Revenue - Schedule of Change in Allowance for Credit Losses (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>100430 - Disclosure - Inventories, Net - Inventories, Net (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosureInventoriesNetInventoriesNetDetail</Role>
      <ShortName>Inventories, Net - Inventories, Net (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>100440 - Disclosure - Inventories, Net - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosureInventoriesNetAdditionalInformationDetail</Role>
      <ShortName>Inventories, Net - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>100450 - Disclosure - Property and Equipment, Net - Property and Equipment, Net (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosurePropertyAndEquipmentNetPropertyAndEquipmentNetDetail</Role>
      <ShortName>Property and Equipment, Net - Property and Equipment, Net (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>100470 - Disclosure - Contingent Liabilities - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosureContingentLiabilitiesAdditionalInformationDetail</Role>
      <ShortName>Contingent Liabilities - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>100480 - Disclosure - Pension Plans - Components of Net Periodic Pension Expense (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosurePensionPlansComponentsOfNetPeriodicPensionExpenseDetail</Role>
      <ShortName>Pension Plans - Components of Net Periodic Pension Expense (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>100490 - Disclosure - Pension Plans - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosurePensionPlansAdditionalInformationDetail</Role>
      <ShortName>Pension Plans - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>100500 - Disclosure - Accumulated Other Comprehensive Income ("AOCI") - Summary of Total Changes in AOCI by Component, Net of Tax (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeAOCISummaryOfTotalChangesInAOCIByComponentNetOfTaxDetail</Role>
      <ShortName>Accumulated Other Comprehensive Income ("AOCI") - Summary of Total Changes in AOCI by Component, Net of Tax (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeAOCITables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>100510 - Disclosure - Debt and Credit Arrangements - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureDebtAndCreditArrangementsAdditionalInformationDetail</Role>
      <ShortName>Debt and Credit Arrangements - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>100560 - Disclosure - Income Taxes - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureIncomeTaxesAdditionalInformationDetail</Role>
      <ShortName>Income Taxes - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>100570 - Disclosure - Share-Based Compensation - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureShareBasedCompensationAdditionalInformationDetail</Role>
      <ShortName>Share-Based Compensation - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>100610 - Disclosure - Computation of Earnings Per Share - Calculation of Basic and Diluted Earnings Per Share (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureComputationOfEarningsPerShareCalculationOfBasicAndDilutedEarningsPerShareDetail</Role>
      <ShortName>Computation of Earnings Per Share - Calculation of Basic and Diluted Earnings Per Share (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>100620 - Disclosure - Computation of Earnings Per Share - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureComputationOfEarningsPerShareAdditionalInformationDetail</Role>
      <ShortName>Computation of Earnings Per Share - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>100630 - Disclosure - Goodwill and Other Intangibles - Finite and Indefinite-Lived Intangible Assets (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureGoodwillAndOtherIntangiblesFiniteAndIndefiniteLivedIntangibleAssetsDetail</Role>
      <ShortName>Goodwill and Other Intangibles - Finite and Indefinite-Lived Intangible Assets (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>100660 - Disclosure - Goodwill and Other Intangibles - Changes in Carrying Amount of Goodwill by Segment (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureGoodwillAndOtherIntangiblesChangesInCarryingAmountOfGoodwillBySegmentDetail</Role>
      <ShortName>Goodwill and Other Intangibles - Changes in Carrying Amount of Goodwill by Segment (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>100670 - Disclosure - Fair Value of Financial Assets and Liabilities - Summary of Assets and Liabilities Recorded and Measured at Fair Value (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureFairValueOfFinancialAssetsAndLiabilitiesSummaryOfAssetsAndLiabilitiesRecordedAndMeasuredAtFairValueDetail</Role>
      <ShortName>Fair Value of Financial Assets and Liabilities - Summary of Assets and Liabilities Recorded and Measured at Fair Value (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>100680 - Disclosure - Fair Value of Financial Assets and Liabilities - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureFairValueOfFinancialAssetsAndLiabilitiesAdditionalInformationDetail</Role>
      <ShortName>Fair Value of Financial Assets and Liabilities - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>100690 - Disclosure - Fair Value of Financial Assets and Liabilities - Fair Value and Carrying Value of Long-Term Debt (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureFairValueOfFinancialAssetsAndLiabilitiesFairValueAndCarryingValueOfLongTermDebtDetail</Role>
      <ShortName>Fair Value of Financial Assets and Liabilities - Fair Value and Carrying Value of Long-Term Debt (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>100700 - Disclosure - Segment Information - Summary of Company's Reportable Segments (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/Role_DisclosureSegmentInformationSummaryOfCompanySReportableSegmentsDetail</Role>
      <ShortName>Segment Information - Summary of Company's Reportable Segments (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>100710 - Disclosure - Acquisitions of Businesses - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosureAcquisitionsOfBusinessesAdditionalInformationDetail</Role>
      <ShortName>Acquisitions of Businesses - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="plpc-20240331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>100720 - Disclosure - Acquisitions of Businesses - Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.preformed.com/20240331/taxonomy/role/DisclosureAcquisitionsOfBusinessesScheduleOfEstimatedFairValuesOfAssetsAcquiredAndLiabilitiesAssumedDetail</Role>
      <ShortName>Acquisitions of Businesses - Schedule of Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <Logs>
    <Log type="Warning">[dq-0542-Deprecated-Concept] Concept LossContingencyLawsuitFilingDate in us-gaap/2023 used in 1 facts was deprecated in us-gaap/2024 as of 2024 and should not be used. plpc-20240331.htm 3180</Log>
  </Logs>
  <InputFiles>
    <File doctype="10-Q" isDefinitelyFs="true" isUsgaap="true" original="plpc-20240331.htm">plpc-20240331.htm</File>
    <File>plpc-20240331.xsd</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="558">http://fasb.org/us-gaap/2023</BaseTaxonomy>
    <BaseTaxonomy items="29">http://xbrl.sec.gov/dei/2023</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>false</HasPresentationLinkbase>
  <HasCalculationLinkbase>false</HasCalculationLinkbase>
</FilingSummary>
