<?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>2.2.0.25</Version>
  <ReportType />
  <MyReports>
    <Report>
      <IsDefault>true</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>00 - Document - Document and Entity Information</LongName>
      <ShortName>Document and Entity Information</ShortName>
      <Role>http://ametek.com/role/DocumentAndEntityInformation</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R1.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0110 - Statement - Consolidated Statement of Income (Unaudited)</LongName>
      <ShortName>Consolidated Statement of Income (Unaudited)</ShortName>
      <Role>http://ametek.com/role/StatementOfIncome</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R2.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0120 - Statement - Consolidated Balance Sheet</LongName>
      <ShortName>Consolidated Balance Sheet</ShortName>
      <Role>http://ametek.com/role/BalanceSheet</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R3.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0140 - Statement - Condensed Consolidated Statement of Cash Flows (Unaudited)</LongName>
      <ShortName>Condensed Consolidated Statement of Cash Flows (Unaudited)</ShortName>
      <Role>http://ametek.com/role/StatementOfCashFlows</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R4.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0201 - Disclosure - Basis of Presentation</LongName>
      <ShortName>Basis of Presentation</ShortName>
      <Role>http://ametek.com/role/BasisOfPresentation</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R5.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0202 - Disclosure - Recent Accounting Pronouncements</LongName>
      <ShortName>Recent Accounting Pronouncements</ShortName>
      <Role>http://ametek.com/role/RecentAccountingPronouncements</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R6.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0203 - Disclosure - Earnings Per Share</LongName>
      <ShortName>Earnings Per Share</ShortName>
      <Role>http://ametek.com/role/EarningsPerShare</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R7.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0204 - Disclosure - Comprehensive Income</LongName>
      <ShortName>Comprehensive Income</ShortName>
      <Role>http://ametek.com/role/ComprehensiveIncome</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R8.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0205 - Disclosure - Fair Value Measurements</LongName>
      <ShortName>Fair Value Measurements</ShortName>
      <Role>http://ametek.com/role/FairValueMeasurement</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R9.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0206 - Disclosure - Hedging Activities</LongName>
      <ShortName>Hedging Activities</ShortName>
      <Role>http://ametek.com/role/HedgingActivities</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R10.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0207 - Disclosure - Inventories</LongName>
      <ShortName>Inventories</ShortName>
      <Role>http://ametek.com/role/Inventories</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R11.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0208 - Disclosure - Goodwill</LongName>
      <ShortName>Goodwill</ShortName>
      <Role>http://ametek.com/role/Goodwill</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R12.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0209 - Disclosure - Income Taxes</LongName>
      <ShortName>Income Taxes</ShortName>
      <Role>http://ametek.com/role/IncomeTaxes</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R13.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0210 - Disclosure - Financial Instruments</LongName>
      <ShortName>Financial Instruments</ShortName>
      <Role>http://ametek.com/role/FinancialInstruments</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R14.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0211 - Disclosure - Share-Based Compensation</LongName>
      <ShortName>Share-Based Compensation</ShortName>
      <Role>http://ametek.com/role/ShareBasedCompensation</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R15.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0212 - Disclosure - Retirement and Pension Plans</LongName>
      <ShortName>Retirement and Pension Plans</ShortName>
      <Role>http://ametek.com/role/RetirementAndPensionPlans</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R16.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0213 - Disclosure - Product Warranties</LongName>
      <ShortName>Product Warranties</ShortName>
      <Role>http://ametek.com/role/ProductWarranties</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R17.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0214 - Disclosure - Contingencies</LongName>
      <ShortName>Contingencies</ShortName>
      <Role>http://ametek.com/role/Contingencies</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R18.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0215 - Disclosure - Reportable Segments</LongName>
      <ShortName>Reportable Segments</ShortName>
      <Role>http://ametek.com/role/ReportableSegments</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R19.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0216 - Disclosure - Fourth Quarter of 2008 Restructuring Charges and Asset Write-Downs</LongName>
      <ShortName>Fourth Quarter of 2008 Restructuring Charges and Asset Write-Downs</ShortName>
      <Role>http://ametek.com/role/RestructuringChargesAndAssetWriteDowns</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R20.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0217 - Disclosure - Subsequent Event</LongName>
      <ShortName>Subsequent Event</ShortName>
      <Role>http://ametek.com/role/SubsequentEvent</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R21.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0402 - Disclosure - Recent Accounting Pronouncements (Policies)</LongName>
      <ShortName>Recent Accounting Pronouncements (Policies)</ShortName>
      <Role>http://ametek.com/role/RecentAccountingPronouncementsPolicies</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R22.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0503 - Disclosure - Earnings Per Share (Tables)</LongName>
      <ShortName>Earnings Per Share (Tables)</ShortName>
      <Role>http://ametek.com/role/EarningsPerShareTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R23.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0504 - Disclosure - Comprehensive Income (Tables)</LongName>
      <ShortName>Comprehensive Income (Tables)</ShortName>
      <Role>http://ametek.com/role/ComprehensiveIncomeTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R24.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0507 - Disclosure - Inventories (Tables)</LongName>
      <ShortName>Inventories (Tables)</ShortName>
      <Role>http://ametek.com/role/InventoriesTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R25.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0508 - Disclosure - Goodwill (Tables)</LongName>
      <ShortName>Goodwill (Tables)</ShortName>
      <Role>http://ametek.com/role/GoodwillTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R26.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0509 - Disclosure - Income Taxes (Tables)</LongName>
      <ShortName>Income Taxes (Tables)</ShortName>
      <Role>http://ametek.com/role/IncomeTaxesTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R27.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0510 - Disclosure - Financial Instruments (Tables)</LongName>
      <ShortName>Financial Instruments (Tables)</ShortName>
      <Role>http://ametek.com/role/FinancialInstrumentsTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R28.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0511 - Disclosure - Share-Based Compensation (Tables)</LongName>
      <ShortName>Share-Based Compensation (Tables)</ShortName>
      <Role>http://ametek.com/role/ShareBasedCompensationTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R29.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0512 - Disclosure - Retirement and Pension Plans (Tables)</LongName>
      <ShortName>Retirement and Pension Plans (Tables)</ShortName>
      <Role>http://ametek.com/role/RetirementAndPensionPlansTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R30.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0513 - Disclosure - Product Warranties (Tables)</LongName>
      <ShortName>Product Warranties (Tables)</ShortName>
      <Role>http://ametek.com/role/ProductWarrantiesTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R31.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0516 - Disclosure - Fourth Quarter of 2008 Restructuring Charges and Asset Write-Downs (Tables)</LongName>
      <ShortName>Fourth Quarter of 2008 Restructuring Charges and Asset Write-Downs (Tables)</ShortName>
      <Role>http://ametek.com/role/RestructuringChargesAndAssetWriteDownsTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R32.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0603 - Disclosure - Earnings Per Share (Details)</LongName>
      <ShortName>Earnings Per Share (Details)</ShortName>
      <Role>http://ametek.com/role/EarningsPerShareDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R33.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0604 - Disclosure - Comprehensive Income (Details)</LongName>
      <ShortName>Comprehensive Income (Details)</ShortName>
      <Role>http://ametek.com/role/ComprehensiveIncomeDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R34.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0605 - Disclosure - Fair Value Measurements (Details)</LongName>
      <ShortName>Fair Value Measurements (Details)</ShortName>
      <Role>http://ametek.com/role/FairValueMeasurementDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R35.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0606 - Disclosure - Hedging Activities (Details)</LongName>
      <ShortName>Hedging Activities (Details)</ShortName>
      <Role>http://ametek.com/role/HedgingActivitiesDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R36.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0607 - Disclosure - Inventories (Details)</LongName>
      <ShortName>Inventories (Details)</ShortName>
      <Role>http://ametek.com/role/InventoriesDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R37.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0608 - Disclosure - Goodwill (Details)</LongName>
      <ShortName>Goodwill (Details)</ShortName>
      <Role>http://ametek.com/role/GoodwillDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R38.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0609 - Disclosure - Income Taxes (Details)</LongName>
      <ShortName>Income Taxes (Details)</ShortName>
      <Role>http://ametek.com/role/IncomeTaxesDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R39.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0610 - Disclosure - Financial Instruments (Details)</LongName>
      <ShortName>Financial Instruments (Details)</ShortName>
      <Role>http://ametek.com/role/FinancialInstrumentsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R40.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0611 - Disclosure - Share-Based Compensation (Details)</LongName>
      <ShortName>Share-Based Compensation (Details)</ShortName>
      <Role>http://ametek.com/role/ShareBasedCompensationDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R41.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0612 - Disclosure - Retirement and Pension Plans (Details)</LongName>
      <ShortName>Retirement and Pension Plans (Details)</ShortName>
      <Role>http://ametek.com/role/RetirementAndPensionPlansDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R42.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0613 - Disclosure - Product Warranties (Details)</LongName>
      <ShortName>Product Warranties (Details)</ShortName>
      <Role>http://ametek.com/role/ProductWarrantiesDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R43.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0614 - Disclosure - Contingencies (Details)</LongName>
      <ShortName>Contingencies (Details)</ShortName>
      <Role>http://ametek.com/role/ContingenciesDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R44.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0615 - Disclosure - Reportable Segments (Details)</LongName>
      <ShortName>Reportable Segments (Details)</ShortName>
      <Role>http://ametek.com/role/ReportableSegmentsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R45.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0616 - Disclosure - Fourth Quarter of 2008 Restructuring Charges and Asset Write-Downs (Details)</LongName>
      <ShortName>Fourth Quarter of 2008 Restructuring Charges and Asset Write-Downs (Details)</ShortName>
      <Role>http://ametek.com/role/RestructuringChargesAndAssetWriteDownsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R46.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>0617 - Disclosure - Subsequent Event (Details)</LongName>
      <ShortName>Subsequent Event (Details)</ShortName>
      <Role>http://ametek.com/role/SubsequentEventDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R47.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>38</ContextCount>
  <SegmentCount>16</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <UnitCount>4</UnitCount>
  <ElementCount>169</ElementCount>
  <FootnotesReported>true</FootnotesReported>
  <TuplesReported>false</TuplesReported>
  <ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Mar2011_Emg_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Dec2010_Emg_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Mar2011</ContextName>
      <ElementCount>39</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Mar2011_Carrying_Reported_Amount_Fair_Value_Disclosure_Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_31Mar2011_Emg_Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_31Dec2008_Electromechanical_Group_Segment_Operating_Income_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Dec2010_Portion_At_Fair_Value_Fair_Value_Disclosure_Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_31Dec2008_Selling_General_And_Administrative_Expenses_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_28Apr2011</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_31Dec2008_Employee_Reductions_And_Facility_Closures_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Mar2011_British_Pound_Denominated_Loans_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Dec2009</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_31Mar2011_Employee_Severance_Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Mar2011_Eig_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_30Jun2010</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_31Dec2008_Electronic_Instruments_Group_Segment_Operating_Income_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Jan-01-2011_Mar-31-2011</ContextName>
      <ElementCount>111</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Dec2010_Carrying_Reported_Amount_Fair_Value_Disclosure_Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_30Jun2011</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Mar2011_Portion_At_Fair_Value_Fair_Value_Disclosure_Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Mar2011_Euro_Denominated_Loans_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_31Mar2011_Eig_Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Mar2011_Fair_Value_Inputs_Level2_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Mar2011_Employee_Severance_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_31Dec2008_Corporate_Administrative_And_Other_Expenses_Segment_Operating_Income_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_31Dec2008_Cost_Of_Sales_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Dec2010_Employee_Severance_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Dec2010_Facility_Closing_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>OneMonthEnded_30Apr2011</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_31Mar2010</ContextName>
      <ElementCount>54</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Mar2010</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_31Dec2008</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Mar2011_Facility_Closing_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_31Mar2011_Facility_Closing_Member</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Mar2011_Fair_Value_Inputs_Level1_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>ThreeMonthsEnded_06Apr2011</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Dec2010_Eig_Member</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>BalanceAsOf_31Dec2010</ContextName>
      <ElementCount>36</ElementCount>
    </ContextSummary>
  </ContextSummary>
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
