<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.10.0.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>265</ContextCount>
  <ElementCount>245</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>59</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>8</UnitCount>
  <MyReports>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00100 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/StatementCondensedConsolidatedBalanceSheets</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00150 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/StatementCondensedConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00200 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/StatementCondensedConsolidatedStatementsOfOperations</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00300 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/StatementCondensedConsolidatedStatementsOfComprehensiveIncomeLoss</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00350 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/StatementCondensedConsolidatedStatementsOfComprehensiveIncomeLossParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>00400 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/StatementCondensedConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>10101 - Disclosure - Basis of Presentation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureBasisOfPresentation</Role>
      <ShortName>Basis of Presentation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>10201 - Disclosure - Recently Issued Accounting Standards</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureRecentlyIssuedAccountingStandards</Role>
      <ShortName>Recently Issued Accounting Standards</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>10301 - Disclosure - Revenue</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureRevenue</Role>
      <ShortName>Revenue</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>10401 - Disclosure - Acquisition of Orlaco</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureAcquisitionOfOrlaco</Role>
      <ShortName>Acquisition of Orlaco</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>10501 - Disclosure - Inventories</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureInventories</Role>
      <ShortName>Inventories</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>10601 - Disclosure - Financial Instruments and Fair Value Measurements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureFinancialInstrumentsAndFairValueMeasurements</Role>
      <ShortName>Financial Instruments and Fair Value Measurements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>10701 - Disclosure - Share-Based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureShareBasedCompensation</Role>
      <ShortName>Share-Based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>10801 - Disclosure - Debt</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureDebt</Role>
      <ShortName>Debt</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>10901 - Disclosure - Earnings Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureEarningsPerShare</Role>
      <ShortName>Earnings Per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>11001 - Disclosure - Changes in Accumulated Other Comprehensive Loss by Component</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureChangesInAccumulatedOtherComprehensiveLossByComponent</Role>
      <ShortName>Changes in Accumulated Other Comprehensive Loss by Component</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>11101 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>11201 - Disclosure - Business Realignment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureBusinessRealignment</Role>
      <ShortName>Business Realignment</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>11301 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureIncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>11401 - Disclosure - Segment Reporting</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureSegmentReporting</Role>
      <ShortName>Segment Reporting</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>11501 - Disclosure - Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureInvestments</Role>
      <ShortName>Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>30303 - Disclosure - Revenue (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureRevenueTables</Role>
      <ShortName>Revenue (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureRevenue</ParentRole>
      <Position>23</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>30403 - Disclosure - Acquisition of Orlaco (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureAcquisitionOfOrlacoTables</Role>
      <ShortName>Acquisition of Orlaco (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureAcquisitionOfOrlaco</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>30503 - Disclosure - Inventories (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureInventoriesTables</Role>
      <ShortName>Inventories (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureInventories</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>30603 - Disclosure - Financial Instruments and Fair Value Measurements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureFinancialInstrumentsAndFairValueMeasurementsTables</Role>
      <ShortName>Financial Instruments and Fair Value Measurements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureFinancialInstrumentsAndFairValueMeasurements</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>30803 - Disclosure - Debt (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureDebtTables</Role>
      <ShortName>Debt (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureDebt</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>30903 - Disclosure - Earnings Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureEarningsPerShareTables</Role>
      <ShortName>Earnings Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureEarningsPerShare</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>31003 - Disclosure - Changes in Accumulated Other Comprehensive Loss by Component (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureChangesInAccumulatedOtherComprehensiveLossByComponentTables</Role>
      <ShortName>Changes in Accumulated Other Comprehensive Loss by Component (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureChangesInAccumulatedOtherComprehensiveLossByComponent</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>31103 - Disclosure - Commitments and Contingencies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureCommitmentsAndContingenciesTables</Role>
      <ShortName>Commitments and Contingencies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureCommitmentsAndContingencies</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>31203 - Disclosure - Business Realignment (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureBusinessRealignmentTables</Role>
      <ShortName>Business Realignment (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureBusinessRealignment</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>31403 - Disclosure - Segment Reporting (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureSegmentReportingTables</Role>
      <ShortName>Segment Reporting (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureSegmentReporting</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>31503 - Disclosure - Investments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureInvestmentsTables</Role>
      <ShortName>Investments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureInvestments</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>40101 - Disclosure - Basis of Presentation (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureBasisOfPresentationNarrativeDetails</Role>
      <ShortName>Basis of Presentation (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureBasisOfPresentation</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>40301 - Disclosure - Revenue (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureRevenueNarrativeDetails</Role>
      <ShortName>Revenue (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureRevenueTables</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>40302 - Disclosure - Revenue (Revenue by Segment and Geographical Location) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureRevenueRevenueBySegmentAndGeographicalLocationDetails</Role>
      <ShortName>Revenue (Revenue by Segment and Geographical Location) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureRevenueTables</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>40401 - Disclosure - Acquisition of Orlaco (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureAcquisitionOfOrlacoNarrativeDetails</Role>
      <ShortName>Acquisition of Orlaco (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureAcquisitionOfOrlacoTables</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>40402 - Disclosure - Acquisition of Orlaco (Schedule of Total Consideration Transferred) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureAcquisitionOfOrlacoScheduleOfTotalConsiderationTransferredDetails</Role>
      <ShortName>Acquisition of Orlaco (Schedule of Total Consideration Transferred) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureAcquisitionOfOrlacoTables</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>40404 - Disclosure - Acquisition of Orlaco (Pro Forma Results of Operations) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureAcquisitionOfOrlacoProFormaResultsOfOperationsDetails</Role>
      <ShortName>Acquisition of Orlaco (Pro Forma Results of Operations) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureAcquisitionOfOrlacoTables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>40501 - Disclosure - Inventories (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureInventoriesNarrativeDetails</Role>
      <ShortName>Inventories (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureInventoriesTables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>40502 - Disclosure - Inventories (Schedule of Inventories) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureInventoriesScheduleOfInventoriesDetails</Role>
      <ShortName>Inventories (Schedule of Inventories) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureInventoriesTables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>40601 - Disclosure - Financial Instruments and Fair Value Measurements (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureFinancialInstrumentsAndFairValueMeasurementsNarrativeDetails</Role>
      <ShortName>Financial Instruments and Fair Value Measurements (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureFinancialInstrumentsAndFairValueMeasurementsTables</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>40602 - Disclosure - Financial Instruments and Fair Value Measurements (Schedule of Derivative Instruments in Statement of Financial Position, Fair Value) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureFinancialInstrumentsAndFairValueMeasurementsScheduleOfDerivativeInstrumentsInStatementOfFinancialPositionFairValueDetails</Role>
      <ShortName>Financial Instruments and Fair Value Measurements (Schedule of Derivative Instruments in Statement of Financial Position, Fair Value) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureFinancialInstrumentsAndFairValueMeasurementsTables</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>40603 - Disclosure - Financial Instruments and Fair Value Measurements (Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureFinancialInstrumentsAndFairValueMeasurementsScheduleOfCashFlowHedgesIncludedInAccumulatedOtherComprehensiveIncomeLossDetails</Role>
      <ShortName>Financial Instruments and Fair Value Measurements (Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureFinancialInstrumentsAndFairValueMeasurementsTables</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>40604 - Disclosure - Financial Instruments and Fair Value Measurements (Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureFinancialInstrumentsAndFairValueMeasurementsScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisDetails</Role>
      <ShortName>Financial Instruments and Fair Value Measurements (Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureFinancialInstrumentsAndFairValueMeasurementsTables</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>40605 - Disclosure - Financial Instruments and Fair Value Measuements (Summary of the Change in Fair Value of the Level 3 Financial Liabilities Related to Contingent Consideration) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureFinancialInstrumentsAndFairValueMeasuementsSummaryOfChangeInFairValueOfLevel3FinancialLiabilitiesRelatedToContingentConsiderationDetails</Role>
      <ShortName>Financial Instruments and Fair Value Measuements (Summary of the Change in Fair Value of the Level 3 Financial Liabilities Related to Contingent Consideration) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureFinancialInstrumentsAndFairValueMeasurementsTables</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>40701 - Disclosure - Share-Based Compensation (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureShareBasedCompensationNarrativeDetails</Role>
      <ShortName>Share-Based Compensation (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureShareBasedCompensation</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>40801 - Disclosure - Debt (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureDebtNarrativeDetails</Role>
      <ShortName>Debt (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureDebtTables</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>40802 - Disclosure - Debt (Schedule of Debt) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureDebtScheduleOfDebtDetails</Role>
      <ShortName>Debt (Schedule of Debt) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureDebtTables</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>40901 - Disclosure - Earnings Per Share (Narative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureEarningsPerShareNarativeDetails</Role>
      <ShortName>Earnings Per Share (Narative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureEarningsPerShareTables</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>40902 - Disclosure - Earnings Per Share (Weighted Average Shares Oustanding Used in Calculating Basic and Diluted Net Income Per Share) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureEarningsPerShareWeightedAverageSharesOustandingUsedInCalculatingBasicAndDilutedNetIncomePerShareDetails</Role>
      <ShortName>Earnings Per Share (Weighted Average Shares Oustanding Used in Calculating Basic and Diluted Net Income Per Share) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureEarningsPerShareTables</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>41001 - Disclosure - Changes in Accumulated Other Comprehensive Loss by Component (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureChangesInAccumulatedOtherComprehensiveLossByComponentDetails</Role>
      <ShortName>Changes in Accumulated Other Comprehensive Loss by Component (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureChangesInAccumulatedOtherComprehensiveLossByComponentTables</ParentRole>
      <Position>52</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>41101 - Disclosure - Commitments and Contingencies (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureCommitmentsAndContingenciesNarrativeDetails</Role>
      <ShortName>Commitments and Contingencies (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureCommitmentsAndContingenciesTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>41102 - Disclosure - Commitments and Contingencies (Reconciliation of Changes in Product Warranty and Recall Liability) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureCommitmentsAndContingenciesReconciliationOfChangesInProductWarrantyAndRecallLiabilityDetails</Role>
      <ShortName>Commitments and Contingencies (Reconciliation of Changes in Product Warranty and Recall Liability) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureCommitmentsAndContingenciesTables</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>41202 - Disclosure - Business Realignment (Schedule of Restructuring and Related Costs) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureBusinessRealignmentScheduleOfRestructuringAndRelatedCostsDetails</Role>
      <ShortName>Business Realignment (Schedule of Restructuring and Related Costs) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureBusinessRealignmentTables</ParentRole>
      <Position>55</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>41203 - Disclosure - Business Realignment (Schedule of Business Realignment Charges Classified by Statement of Operations) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureBusinessRealignmentScheduleOfBusinessRealignmentChargesClassifiedByStatementOfOperationsDetails</Role>
      <ShortName>Business Realignment (Schedule of Business Realignment Charges Classified by Statement of Operations) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureBusinessRealignmentTables</ParentRole>
      <Position>56</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>41301 - Disclosure - Income Taxes (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureIncomeTaxesNarrativeDetails</Role>
      <ShortName>Income Taxes (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureIncomeTaxes</ParentRole>
      <Position>57</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>41401 - Disclosure - Segment Reporting (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureSegmentReportingNarrativeDetails</Role>
      <ShortName>Segment Reporting (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureSegmentReportingTables</ParentRole>
      <Position>58</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>41402 - Disclosure - Segment Reporting (Schedule of Segment Reporting Information, by Segment) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureSegmentReportingScheduleOfSegmentReportingInformationBySegmentDetails</Role>
      <ShortName>Segment Reporting (Schedule of Segment Reporting Information, by Segment) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureSegmentReportingTables</ParentRole>
      <Position>59</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>41403 - Disclosure - Segment Reporting (Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureSegmentReportingScheduleOfRevenueFromExternalCustomersAndLongLivedAssetsByGeographicalAreasDetails</Role>
      <ShortName>Segment Reporting (Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureSegmentReportingTables</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>41501 - Disclosure - Investments (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureInvestmentsNarrativeDetails</Role>
      <ShortName>Investments (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureInvestmentsTables</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="sri-20180930.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>41502 - Disclosure - Investments (Schedule of Noncontrolling Interest) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.stoneridge.com/role/DisclosureInvestmentsScheduleOfNoncontrollingInterestDetails</Role>
      <ShortName>Investments (Schedule of Noncontrolling Interest) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.stoneridge.com/role/DisclosureInvestmentsTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>sri-20180930.xml</File>
    <File>sri-20180930.xsd</File>
    <File>sri-20180930_cal.xml</File>
    <File>sri-20180930_def.xml</File>
    <File>sri-20180930_lab.xml</File>
    <File>sri-20180930_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.sec.gov/invest/2013-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/us-gaap/2017-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2014-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
