<?xml version="1.0" encoding="utf-8"?>
<FilingSummary xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Version>2.2.0.7</Version>
  <MyReports>
    <Report>
      <IsDefault>true</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>00 - Document - Document and Entity Information</LongName>
      <ShortName>Document and Entity Information</ShortName>
      <Role>http://dionex.com/role/DocumentAndEntityInformation</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R1.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0110 - Statement - Condensed Consolidated Balance Sheets (Unaudited)</LongName>
      <ShortName>Condensed Consolidated Balance Sheets (Unaudited)</ShortName>
      <Role>http://dionex.com/role/BalanceSheets</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R2.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0111 - Statement - Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical)</LongName>
      <ShortName>Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical)</ShortName>
      <Role>http://dionex.com/role/BalanceSheetsParenthetical</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R3.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0120 - Statement - Condensed Consolidated Statements of Income (Unaudited)</LongName>
      <ShortName>Condensed Consolidated Statements of Income (Unaudited)</ShortName>
      <Role>http://dionex.com/role/StatementsOfIncome</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R4.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0130 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)</LongName>
      <ShortName>Condensed Consolidated Statements of Cash Flows (Unaudited)</ShortName>
      <Role>http://dionex.com/role/StatementsOfCashFlows</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R5.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0201 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <Role>http://dionex.com/role/SummaryOfSignificantAccountingPolicies</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R6.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0202 - Disclosure - Earnings per Share</LongName>
      <ShortName>Earnings per Share</ShortName>
      <Role>http://dionex.com/role/EarningsPerShare</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R7.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0203 - Disclosure - Fair Value Measurements</LongName>
      <ShortName>Fair Value Measurements</ShortName>
      <Role>http://dionex.com/role/FairValueMeasurements</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R8.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0204 - Disclosure - Derivative Securities</LongName>
      <ShortName>Derivative Securities</ShortName>
      <Role>http://dionex.com/role/DerivativeSecurities</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R9.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0205 - Disclosure - Balance Sheet Details</LongName>
      <ShortName>Balance Sheet Details</ShortName>
      <Role>http://dionex.com/role/BalanceSheetDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R10.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0206 - Disclosure - Goodwill and Other Intangible Assets</LongName>
      <ShortName>Goodwill and Other Intangible Assets</ShortName>
      <Role>http://dionex.com/role/GoodwillAndOtherIntangibleAssets</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R11.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0207 - Disclosure - Financing Arrangements</LongName>
      <ShortName>Financing Arrangements</ShortName>
      <Role>http://dionex.com/role/FinancingArrangements</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R12.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0208 - Disclosure - Warranty</LongName>
      <ShortName>Warranty</ShortName>
      <Role>http://dionex.com/role/Warranty</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R13.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0209 - Disclosure - Stock-Based Compensation</LongName>
      <ShortName>Stock-Based Compensation</ShortName>
      <Role>http://dionex.com/role/StockBasedCompensation</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R14.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0210 - Disclosure - Stockholders Equity</LongName>
      <ShortName>Stockholders Equity</ShortName>
      <Role>http://dionex.com/role/StockholdersEquity</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R15.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0211 - Disclosure - Income Taxes</LongName>
      <ShortName>Income Taxes</ShortName>
      <Role>http://dionex.com/role/IncomeTaxes</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R16.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0212 - Disclosure - Commitments And Contingencies</LongName>
      <ShortName>Commitments And Contingencies</ShortName>
      <Role>http://dionex.com/role/CommitmentsAndContingencies</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R17.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0213 - Disclosure - Business Segment Information</LongName>
      <ShortName>Business Segment Information</ShortName>
      <Role>http://dionex.com/role/BusinessSegmentInformation</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R18.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Book</ReportType>
      <LongName>All Reports</LongName>
      <ShortName>All Reports</ShortName>
      <Role />
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName />
    </Report>
  </MyReports>
  <EntityCount>1</EntityCount>
  <ContextCount>9</ContextCount>
  <SegmentCount>0</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <UnitCount>3</UnitCount>
  <ElementCount>115</ElementCount>
  <FootnotesReported>false</FootnotesReported>
  <TuplesReported>false</TuplesReported>
  <ContextSummary>
    <ContextSummary>
      <ContextName>July-01-2010_September-30-2010</ContextName>
      <ElementCount>75</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_30Jun2010</ContextName>
      <ElementCount>37</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_04Nov2010</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_30Jun2009</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_30Sep2010</ContextName>
      <ElementCount>37</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Dec2009</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_30Sep2009</ContextName>
      <ElementCount>50</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_30Sep2009</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>TwelveMonthsEnded_30Jun2010</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
  </ContextSummary>
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
