<?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>00090 - Document - Document and Entity Information</LongName>
      <ShortName>Document and Entity Information</ShortName>
      <Role>http://www.libertymedia.com/role/DocumentDocumentAndEntityInformation</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R1.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>00100 - Statement - Consolidated Balance Sheets</LongName>
      <ShortName>Consolidated Balance Sheets</ShortName>
      <Role>http://www.libertymedia.com/role/StatementConsolidatedBalanceSheets</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R2.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>00105 - Statement - Consolidated Balance Sheets (Parenthetical)</LongName>
      <ShortName>Consolidated Balance Sheets (Parenthetical)</ShortName>
      <Role>http://www.libertymedia.com/role/StatementConsolidatedBalanceSheetsParenthetical</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R3.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>00200 - Statement - Consolidated Statements Of Operations</LongName>
      <ShortName>Consolidated Statements Of Operations</ShortName>
      <Role>http://www.libertymedia.com/role/StatementConsolidatedStatementsOfOperations</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R4.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>00300 - Statement - Consolidated Statements Of Comprehensive Earnings</LongName>
      <ShortName>Consolidated Statements Of Comprehensive Earnings</ShortName>
      <Role>http://www.libertymedia.com/role/StatementConsolidatedStatementsOfComprehensiveEarnings</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R5.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>00400 - Statement - Consolidated Statements Of Cash Flows</LongName>
      <ShortName>Consolidated Statements Of Cash Flows</ShortName>
      <Role>http://www.libertymedia.com/role/StatementConsolidatedStatementsOfCashFlows</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R6.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>00500 - Statement - Consolidated Statements Of Equity</LongName>
      <ShortName>Consolidated Statements Of Equity</ShortName>
      <Role>http://www.libertymedia.com/role/StatementConsolidatedStatementsOfEquity</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R7.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>10101 - Disclosure - Basis of Presentation</LongName>
      <ShortName>Basis of Presentation</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureBasisOfPresentation</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R8.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>10201 - Disclosure - Tracking Stocks</LongName>
      <ShortName>Tracking Stocks</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureTrackingStocks</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R9.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>10301 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R10.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>10401 - Disclosure - Supplemental Disclosures to Consolidated Statement of Cash Flows</LongName>
      <ShortName>Supplemental Disclosures to Consolidated Statement of Cash Flows</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureSupplementalDisclosuresToConsolidatedStatementOfCashFlows</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R11.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>10501 - Disclosure - Discontinued Operations</LongName>
      <ShortName>Discontinued Operations</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureDiscontinuedOperations</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R12.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>10601 - Disclosure - Assets and Liabilities Measured at Fair Value</LongName>
      <ShortName>Assets and Liabilities Measured at Fair Value</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureAssetsAndLiabilitiesMeasuredAtFairValue</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R13.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>10701 - Disclosure - Investments in Available-for-Sale Securities and Other Cost Investments</LongName>
      <ShortName>Investments in Available-for-Sale Securities and Other Cost Investments</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInvestmentsInAvailableForSaleSecuritiesAndOtherCostInvestments</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R14.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>10801 - Disclosure - Investments in Affiliates Accounted for Using the Equity Method</LongName>
      <ShortName>Investments in Affiliates Accounted for Using the Equity Method</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInvestmentsInAffiliatesAccountedForUsingEquityMethod</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R15.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>10901 - Disclosure - Financial Instruments</LongName>
      <ShortName>Financial Instruments</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureFinancialInstruments</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R16.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>11001 - Disclosure - Goodwill and Other Intangible Assets</LongName>
      <ShortName>Goodwill and Other Intangible Assets</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureGoodwillAndOtherIntangibleAssets</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R17.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>11101 - Disclosure - Long-Term Debt</LongName>
      <ShortName>Long-Term Debt</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureLongTermDebt</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R18.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>11201 - Disclosure - Income Taxes</LongName>
      <ShortName>Income Taxes</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureIncomeTaxes</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R19.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>11301 - Disclosure - Stockholders' Equity</LongName>
      <ShortName>Stockholders' Equity</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureStockholdersEquity</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R20.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>11401 - Disclosure - Transactions with Officers and Directors</LongName>
      <ShortName>Transactions with Officers and Directors</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureTransactionsWithOfficersAndDirectors</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R21.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>11501 - Disclosure - Stock Options and Stock Appreciation Rights</LongName>
      <ShortName>Stock Options and Stock Appreciation Rights</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureStockOptionsAndStockAppreciationRights</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R22.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>11601 - Disclosure - Employee Benefit Plans</LongName>
      <ShortName>Employee Benefit Plans</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureEmployeeBenefitPlans</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R23.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>11701 - Disclosure - Other Comprehensive Earnings (Loss)</LongName>
      <ShortName>Other Comprehensive Earnings (Loss)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureOtherComprehensiveEarningsLoss</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R24.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>11801 - Disclosure - Transactions with Related Parties</LongName>
      <ShortName>Transactions with Related Parties</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureTransactionsWithRelatedParties</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R25.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>11901 - Disclosure - Commitments and Contingencies</LongName>
      <ShortName>Commitments and Contingencies</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R26.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>12001 - Disclosure - Information About Liberty's Operating Segments</LongName>
      <ShortName>Information About Liberty's Operating Segments</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInformationAboutLibertySOperatingSegments</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R27.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>12101 - Disclosure - Quarterly Financial Information (Unaudited)</LongName>
      <ShortName>Quarterly Financial Information (Unaudited)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureQuarterlyFinancialInformationUnaudited</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R28.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>20302 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R29.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>30303 - Disclosure - Summary of Significant Accounting Policies (Tables)</LongName>
      <ShortName>Summary of Significant Accounting Policies (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R30.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>30403 - Disclosure - Supplemental Disclosures to Consolidated Statements of Cash Flows (Tables)</LongName>
      <ShortName>Supplemental Disclosures to Consolidated Statements of Cash Flows (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureSupplementalDisclosuresToConsolidatedStatementsOfCashFlowsTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R31.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>30503 - Disclosure - Discontinued Operations (Tables)</LongName>
      <ShortName>Discontinued Operations (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureDiscontinuedOperationsTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R32.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>30603 - Disclosure - Assets and Liabilities Measured at Fair Value (Tables)</LongName>
      <ShortName>Assets and Liabilities Measured at Fair Value (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureAssetsAndLiabilitiesMeasuredAtFairValueTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R33.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>30703 - Disclosure - Investments in Available-for-Sale Securities and Other Cost Investments (Tables)</LongName>
      <ShortName>Investments in Available-for-Sale Securities and Other Cost Investments (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInvestmentsInAvailableForSaleSecuritiesAndOtherCostInvestmentsTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R34.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>30803 - Disclosure - Investments in Affiliates Accounted for Using the Equity Method (Tables)</LongName>
      <ShortName>Investments in Affiliates Accounted for Using the Equity Method (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInvestmentsInAffiliatesAccountedForUsingEquityMethodTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R35.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>30903 - Disclosure - Financial Instruments (Tables)</LongName>
      <ShortName>Financial Instruments (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureFinancialInstrumentsTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R36.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>31003 - Disclosure - Goodwill and Other Intangible Assets (Tables)</LongName>
      <ShortName>Goodwill and Other Intangible Assets (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureGoodwillAndOtherIntangibleAssetsTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R37.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>31103 - Disclosure - Long-Term Debt (Tables)</LongName>
      <ShortName>Long-Term Debt (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureLongTermDebtTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R38.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>31203 - Disclosure - Income Taxes (Tables)</LongName>
      <ShortName>Income Taxes (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureIncomeTaxesTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R39.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>31503 - Disclosure - Stock Options and Stock Appreciation Rights (Tables)</LongName>
      <ShortName>Stock Options and Stock Appreciation Rights (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureStockOptionsAndStockAppreciationRightsTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R40.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>31703 - Disclosure - Other Comprehensive Earnings (Loss) (Tables)</LongName>
      <ShortName>Other Comprehensive Earnings (Loss) (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureOtherComprehensiveEarningsLossTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R41.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>31903 - Disclosure - Commitments and Contingencies (Tables)</LongName>
      <ShortName>Commitments and Contingencies (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureCommitmentsAndContingenciesTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R42.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>32003 - Disclosure - Information About Liberty's Operating Segments (Tables)</LongName>
      <ShortName>Information About Liberty's Operating Segments (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInformationAboutLibertySOperatingSegmentsTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R43.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>32103 - Disclosure - Quarterly Financial Information (Unaudited) (Tables)</LongName>
      <ShortName>Quarterly Financial Information (Unaudited) (Tables)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureQuarterlyFinancialInformationUnauditedTables</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R44.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40201 - Disclosure - Tracking Stocks (Narrative) (Details)</LongName>
      <ShortName>Tracking Stocks (Narrative) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureTrackingStocksNarrativeDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R45.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40301 - Disclosure - Summary of Significant Accounting Policies (Receivables) (Details)</LongName>
      <ShortName>Summary of Significant Accounting Policies (Receivables) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureSummaryOfSignificantAccountingPoliciesReceivablesDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R46.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40302 - Disclosure - Summary of Significant Accounting Policies (Investments) (Details)</LongName>
      <ShortName>Summary of Significant Accounting Policies (Investments) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureSummaryOfSignificantAccountingPoliciesInvestmentsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R47.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40303 - Disclosure - Summary of Significant Accounting Policies (Revenue Recognition) (Details)</LongName>
      <ShortName>Summary of Significant Accounting Policies (Revenue Recognition) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureSummaryOfSignificantAccountingPoliciesRevenueRecognitionDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R48.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40304 - Disclosure - Summary of Significant Accounting Policies (Advertising Costs) (Details)</LongName>
      <ShortName>Summary of Significant Accounting Policies (Advertising Costs) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureSummaryOfSignificantAccountingPoliciesAdvertisingCostsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R49.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40305 - Disclosure - Summary of Significant Accounting Policies (Stock-Based Compensation) (Details)</LongName>
      <ShortName>Summary of Significant Accounting Policies (Stock-Based Compensation) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureSummaryOfSignificantAccountingPoliciesStockBasedCompensationDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R50.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40306 - Disclosure - Summary of Significant Accounting Policies (Earnings Per Share) (Details)</LongName>
      <ShortName>Summary of Significant Accounting Policies (Earnings Per Share) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureSummaryOfSignificantAccountingPoliciesEarningsPerShareDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R51.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40307 - Disclosure - Summary of Significant Accounting Policies (Recent Accounting Pronouncements) (Details)</LongName>
      <ShortName>Summary of Significant Accounting Policies (Recent Accounting Pronouncements) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureSummaryOfSignificantAccountingPoliciesRecentAccountingPronouncementsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R52.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40401 - Disclosure - Supplemental Disclosure to Consolidated Statements of Cash Flows (Details)</LongName>
      <ShortName>Supplemental Disclosure to Consolidated Statements of Cash Flows (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureSupplementalDisclosureToConsolidatedStatementsOfCashFlowsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R53.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40501 - Disclosure - Discontinued Operations (Narrative) (Details)</LongName>
      <ShortName>Discontinued Operations (Narrative) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureDiscontinuedOperationsNarrativeDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R54.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40502 - Disclosure - Discontinued Operations (Consolidated Balance Sheets) (Details)</LongName>
      <ShortName>Discontinued Operations (Consolidated Balance Sheets) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureDiscontinuedOperationsConsolidatedBalanceSheetsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R55.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40503 - Disclosure - Discontinued Operations (Consolidated Statements of Operations) (Details)</LongName>
      <ShortName>Discontinued Operations (Consolidated Statements of Operations) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureDiscontinuedOperationsConsolidatedStatementsOfOperationsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R56.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40504 - Disclosure - Discontinued Operations (Earnings for LEI) (Details)</LongName>
      <ShortName>Discontinued Operations (Earnings for LEI) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureDiscontinuedOperationsEarningsForLeiDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R57.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40601 - Disclosure - Assets and Liabilities Measured at Fair Value (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details)</LongName>
      <ShortName>Assets and Liabilities Measured at Fair Value (Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureAssetsAndLiabilitiesMeasuredAtFairValueAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R58.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40701 - Disclosure - Investments in Available-for-Sale Securities and Other Cost Investments (Narrative) (Details)</LongName>
      <ShortName>Investments in Available-for-Sale Securities and Other Cost Investments (Narrative) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInvestmentsInAvailableForSaleSecuritiesAndOtherCostInvestmentsNarrativeDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R59.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40702 - Disclosure - Investments in Available-for-Sale Securities and Other Cost Investments (Investments in Available-for-Sale Securities and Other Cost Investments) (Details)</LongName>
      <ShortName>Investments in Available-for-Sale Securities and Other Cost Investments (Investments in Available-for-Sale Securities and Other Cost Investments) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInvestmentsInAvailableForSaleSecuritiesAndOtherCostInvestmentsInvestmentsInAvailableForSaleSecuritiesAndOtherCostInvestmentsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R60.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40703 - Disclosure - Investments in Available-for-Sale Securities and Other Cost Investments (Unrealized Holding Gains and Losses) (Details)</LongName>
      <ShortName>Investments in Available-for-Sale Securities and Other Cost Investments (Unrealized Holding Gains and Losses) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInvestmentsInAvailableForSaleSecuritiesAndOtherCostInvestmentsUnrealizedHoldingGainsAndLossesDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R61.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40801 - Disclosure - Investments in Affiliates Accounted for Using the Equity Method (Narrative) (Details)</LongName>
      <ShortName>Investments in Affiliates Accounted for Using the Equity Method (Narrative) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInvestmentsInAffiliatesAccountedForUsingEquityMethodNarrativeDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R62.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40802 - Disclosure - Investments in Affiliates Accounted for Using the Equity Method (Schedule of Equity Ownership and Carrying Amount) (Details)</LongName>
      <ShortName>Investments in Affiliates Accounted for Using the Equity Method (Schedule of Equity Ownership and Carrying Amount) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInvestmentsInAffiliatesAccountedForUsingEquityMethodScheduleOfEquityOwnershipAndCarryingAmountDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R63.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40803 - Disclosure - Investments in Affiliates Accounted for Using the Equity Method (Schedule of Liberty's Share of Earnings (Losses) of Affiliates) (Details)</LongName>
      <ShortName>Investments in Affiliates Accounted for Using the Equity Method (Schedule of Liberty's Share of Earnings (Losses) of Affiliates) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInvestmentsInAffiliatesAccountedForUsingEquityMethodScheduleOfLibertySShareOfEarningsLossesOfAffiliatesDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R64.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40804 - Disclosure - Investments in Affiliates Accounted for Using the Equity Method (Expedia Consolidated Balance Sheets) (Details)</LongName>
      <ShortName>Investments in Affiliates Accounted for Using the Equity Method (Expedia Consolidated Balance Sheets) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInvestmentsInAffiliatesAccountedForUsingEquityMethodExpediaConsolidatedBalanceSheetsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R65.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40805 - Disclosure - Investments in Affiliates Accounted for Using the Equity Method (Expedia Consolidated Statement of Operations) (Details)</LongName>
      <ShortName>Investments in Affiliates Accounted for Using the Equity Method (Expedia Consolidated Statement of Operations) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInvestmentsInAffiliatesAccountedForUsingEquityMethodExpediaConsolidatedStatementOfOperationsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R66.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40901 - Disclosure - Financial Instruments (Summary of Financial Instruments) (Details)</LongName>
      <ShortName>Financial Instruments (Summary of Financial Instruments) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureFinancialInstrumentsSummaryOfFinancialInstrumentsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R67.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>40902 - Disclosure - Financial Instruments (Realized and Unrealized Gains (Losses) on Financial Instruments) (Details)</LongName>
      <ShortName>Financial Instruments (Realized and Unrealized Gains (Losses) on Financial Instruments) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureFinancialInstrumentsRealizedAndUnrealizedGainsLossesOnFinancialInstrumentsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R68.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41001 - Disclosure - Goodwill and Other Intangible Assets (Narrative) (Details)</LongName>
      <ShortName>Goodwill and Other Intangible Assets (Narrative) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureGoodwillAndOtherIntangibleAssetsNarrativeDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R69.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41002 - Disclosure - Goodwill and Other Intangible Assets (Changes in the Carrying Amount of Goodwill) (Details)</LongName>
      <ShortName>Goodwill and Other Intangible Assets (Changes in the Carrying Amount of Goodwill) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureGoodwillAndOtherIntangibleAssetsChangesInCarryingAmountOfGoodwillDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R70.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41003 - Disclosure - Goodwill and Other Intangible Assets (Intangible Assets Subject to Amortization) (Details)</LongName>
      <ShortName>Goodwill and Other Intangible Assets (Intangible Assets Subject to Amortization) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureGoodwillAndOtherIntangibleAssetsIntangibleAssetsSubjectToAmortizationDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R71.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41004 - Disclosure - Goodwill and Other Intangible Assets (Amortization Expense for the Next Five Fiscal Years) (Details)</LongName>
      <ShortName>Goodwill and Other Intangible Assets (Amortization Expense for the Next Five Fiscal Years) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureGoodwillAndOtherIntangibleAssetsAmortizationExpenseForNextFiveFiscalYearsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R72.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41101 - Disclosure - Long-Term Debt (Narrative) (Details)</LongName>
      <ShortName>Long-Term Debt (Narrative) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureLongTermDebtNarrativeDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R73.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41102 - Disclosure - Long-Term Debt (Debt Excluding Intergroup Debt) (Details)</LongName>
      <ShortName>Long-Term Debt (Debt Excluding Intergroup Debt) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureLongTermDebtDebtExcludingIntergroupDebtDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R74.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41103 - Disclosure - Long-Term Debt (Five Year Maturities) (Details)</LongName>
      <ShortName>Long-Term Debt (Five Year Maturities) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureLongTermDebtFiveYearMaturitiesDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R75.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41104 - Disclosure - Long-Term Debt (Debt Securities That Are Not Reported At Fair Value) (Details)</LongName>
      <ShortName>Long-Term Debt (Debt Securities That Are Not Reported At Fair Value) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureLongTermDebtDebtSecuritiesThatAreNotReportedAtFairValueDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R76.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41201 - Disclosure - Income Taxes (Narrative) (Details)</LongName>
      <ShortName>Income Taxes (Narrative) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureIncomeTaxesNarrativeDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R77.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41202 - Disclosure - Income Taxes (Income Tax Expense Benefit, Continuing Operations, By Jurisdiction) (Details)</LongName>
      <ShortName>Income Taxes (Income Tax Expense Benefit, Continuing Operations, By Jurisdiction) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureIncomeTaxesIncomeTaxExpenseBenefitContinuingOperationsByJurisdictionDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R78.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41203 - Disclosure - Income Taxes (Income Tax Expense Benefit, Continuing Operations, Income Tax Reconciliation) (Details)</LongName>
      <ShortName>Income Taxes (Income Tax Expense Benefit, Continuing Operations, Income Tax Reconciliation) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureIncomeTaxesIncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R79.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41204 - Disclosure - Income Taxes (Deferred Income Tax Assets and Deferred Income Tax Liabilities) (Details)</LongName>
      <ShortName>Income Taxes (Deferred Income Tax Assets and Deferred Income Tax Liabilities) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureIncomeTaxesDeferredIncomeTaxAssetsAndDeferredIncomeTaxLiabilitiesDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R80.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41205 - Disclosure - Income Taxes (Schedule of Net Deferred Tax Liabilities) (Details)</LongName>
      <ShortName>Income Taxes (Schedule of Net Deferred Tax Liabilities) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureIncomeTaxesScheduleOfNetDeferredTaxLiabilitiesDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R81.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41206 - Disclosure - Income Taxes (Reconciliation of Unrecognized Tax Benefits) (Details)</LongName>
      <ShortName>Income Taxes (Reconciliation of Unrecognized Tax Benefits) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureIncomeTaxesReconciliationOfUnrecognizedTaxBenefitsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R82.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41301 - Disclosure - Stockholders' Equity (Narrative) (Details)</LongName>
      <ShortName>Stockholders' Equity (Narrative) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureStockholdersEquityNarrativeDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R83.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41401 - Disclosure - Transactions with Officers and Directors (Narrative)(Details)</LongName>
      <ShortName>Transactions with Officers and Directors (Narrative)(Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureTransactionsWithOfficersAndDirectorsNarrativeDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R84.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41501 - Disclosure - Stock Options and Stock Appreciation Rights (Narrative) (Details)</LongName>
      <ShortName>Stock Options and Stock Appreciation Rights (Narrative) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureStockOptionsAndStockAppreciationRightsNarrativeDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R85.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41502 - Disclosure - Stock Options and Stock Appreciation Rights (Grants) (Details)</LongName>
      <ShortName>Stock Options and Stock Appreciation Rights (Grants) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureStockOptionsAndStockAppreciationRightsGrantsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R86.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41503 - Disclosure - Stock Options and Stock Appreciation Rights (Outstanding Awards) (Details)</LongName>
      <ShortName>Stock Options and Stock Appreciation Rights (Outstanding Awards) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureStockOptionsAndStockAppreciationRightsOutstandingAwardsDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R87.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41504 - Disclosure - Stock Options and Stock Appreciation Rights (Restricted Stock) (Details)</LongName>
      <ShortName>Stock Options and Stock Appreciation Rights (Restricted Stock) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureStockOptionsAndStockAppreciationRightsRestrictedStockDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R88.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41601 - Disclosure - Employee Benefit Plans (Narrative) (Details)</LongName>
      <ShortName>Employee Benefit Plans (Narrative) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureEmployeeBenefitPlansNarrativeDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R89.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41701 - Disclosure - Other Comprehensive Earnings (Loss) (Components of Accumulated Other Comprehensive Earnings Loss) (Details)</LongName>
      <ShortName>Other Comprehensive Earnings (Loss) (Components of Accumulated Other Comprehensive Earnings Loss) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureOtherComprehensiveEarningsLossComponentsOfAccumulatedOtherComprehensiveEarningsLossDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R90.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41702 - Disclosure - Other Comprehensive Earnings (Loss) (Tax Effects Related to Each Component of Other Comprehensive Earnings Loss) (Details)</LongName>
      <ShortName>Other Comprehensive Earnings (Loss) (Tax Effects Related to Each Component of Other Comprehensive Earnings Loss) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureOtherComprehensiveEarningsLossTaxEffectsRelatedToEachComponentOfOtherComprehensiveEarningsLossDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R91.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41801 - Disclosure - Transactions with Related Parties (Details)</LongName>
      <ShortName>Transactions with Related Parties (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureTransactionsWithRelatedPartiesDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R92.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>41901 - Disclosure - Commitments and Contingencies (Narrative) (Details)</LongName>
      <ShortName>Commitments and Contingencies (Narrative) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureCommitmentsAndContingenciesNarrativeDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R93.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>42001 - Disclosure - Information About Liberty's Operating Segments (Performance Measures by Segment) (Details)</LongName>
      <ShortName>Information About Liberty's Operating Segments (Performance Measures by Segment) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInformationAboutLibertySOperatingSegmentsPerformanceMeasuresBySegmentDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R94.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>42002 - Disclosure - Information About Liberty's Operating Segments (Other Information by Segment) (Details)</LongName>
      <ShortName>Information About Liberty's Operating Segments (Other Information by Segment) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInformationAboutLibertySOperatingSegmentsOtherInformationBySegmentDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R95.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>42003 - Disclosure - Information About Liberty's Operating Segments (Reconciliation of Segment Adjusted OIBDA to Earnings (loss) from Continuing Operations Before Income Taxes) (Details)</LongName>
      <ShortName>Information About Liberty's Operating Segments (Reconciliation of Segment Adjusted OIBDA to Earnings (loss) from Continuing Operations Before Income Taxes) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInformationAboutLibertySOperatingSegmentsReconciliationOfSegmentAdjustedOibdaToEarningsLossFromContinuingOperationsBeforeIncomeTaxesDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R96.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>42004 - Disclosure - Information About Liberty's Operating Segments (Revenue by Geographic Area) (Details)</LongName>
      <ShortName>Information About Liberty's Operating Segments (Revenue by Geographic Area) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInformationAboutLibertySOperatingSegmentsRevenueByGeographicAreaDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R97.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>42005 - Disclosure - Information About Liberty's Operating Segments (Long-lived Assets by Geographic Area) (Details)</LongName>
      <ShortName>Information About Liberty's Operating Segments (Long-lived Assets by Geographic Area) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureInformationAboutLibertySOperatingSegmentsLongLivedAssetsByGeographicAreaDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R98.xml</XmlFileName>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <ReportType>Sheet</ReportType>
      <LongName>42104 - Disclosure - Quarterly Financial Information (Unaudited) (Quarterly Selected Financial Information) (Details)</LongName>
      <ShortName>Quarterly Financial Information (Unaudited) (Quarterly Selected Financial Information) (Details)</ShortName>
      <Role>http://www.libertymedia.com/role/DisclosureQuarterlyFinancialInformationUnauditedQuarterlySelectedFinancialInformationDetails</Role>
      <ContainEmbeddedReports>false</ContainEmbeddedReports>
      <XmlFileName>R99.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>530</ContextCount>
  <SegmentCount>146</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <UnitCount>4</UnitCount>
  <ElementCount>570</ElementCount>
  <FootnotesReported>true</FootnotesReported>
  <TuplesReported>false</TuplesReported>
  <ContextSummary>
    <ContextSummary>
      <ContextName>Duration_12_1_2008_To_12_31_2008</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20102</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201083</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008322</ContextName>
      <ElementCount>15</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_11_30_2009</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201045</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008310</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_4_1_2010_To_6_30_201023</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201044</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_2010</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010643</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201019</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20104</ContextName>
      <ElementCount>35</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201015</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_4_3_2008</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_7_1_2010_To_9_30_20102</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20088</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201011</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200931</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_1_31_2008</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201039</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200964</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200995</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201048</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010644</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200950</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200924</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106317</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_3_31_201022</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200925</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200724</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200988</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200913</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_11_19_20094</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2008_To_12_31_2008</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_20083</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_200823</ContextName>
      <ElementCount>81</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_2009236</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20102223</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200989</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008334</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_3_5_2009_To_3_7_2009</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106329</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200973</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201022</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200959</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_2_25_20105</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201015</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106418</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20095</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_2009233</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008331</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200987</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200937</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200811</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200972</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200956</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_2009234</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200970</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201023210</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_200824</ContextName>
      <ElementCount>74</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201039</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201019</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200948</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_3_31_20094</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_9_30_20105</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201014</ContextName>
      <ElementCount>35</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200913</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20099</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201036</ContextName>
      <ElementCount>16</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201033</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20104</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20096</ContextName>
      <ElementCount>14</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200952</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200957</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_9_30_20104</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201028</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201052</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008312</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_4_1_2010_To_6_30_2010</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201023211</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201052</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008333</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20093</ContextName>
      <ElementCount>81</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200958</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201037</ContextName>
      <ElementCount>16</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200911</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20102322</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2008_To_12_31_20084</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_200835</ContextName>
      <ElementCount>17</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201021</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_2_25_20106</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200923</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200984</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2009_To_12_31_2009</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008335</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20072</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010634</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008328</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200725</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_1_26_2010</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010649</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_9_30_2009</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20097</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200943</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_7_1_2009_To_9_30_200923</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200910</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201029</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201058</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200934</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200942</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201055</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200981</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_2009239</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106334</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200985</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200982</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008332</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008252</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20086</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106332</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_9_30_201022</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200949</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008253</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201035</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20102329</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_200838</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201022</ContextName>
      <ElementCount>14</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_3_31_20102</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_200839</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201018</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20094</ContextName>
      <ElementCount>74</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2010_To_12_31_2010</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20092315</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_3_31_20102</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201044</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008314</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200941</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200965</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008327</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_3_31_2010</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201041</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200914</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010</ContextName>
      <ElementCount>114</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106311</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106322</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200929</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_11_19_20093</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20083</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200955</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_2010222</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106416</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_2010422</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_3_31_201032</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_4_1_2009_To_6_30_2009</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201017</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200912</ContextName>
      <ElementCount>17</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2008_To_12_31_20082</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106314</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010636</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106319</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200936</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_2009232</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_3_31_2009</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_9_30_2010</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_1_31_20115</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201072</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201021</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20089</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_4_1_2009_To_9_30_2009</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20102327</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200994</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106414</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200722</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200921</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20092314</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106315</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008329</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_200834</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200915</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201013</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200971</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20108</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2010_To_10_31_2010</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20107</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201047</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_7_1_2009_To_9_30_20092</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_11_30_2008</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20092311</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201023</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_3_31_20093</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20109</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201030</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20093</ContextName>
      <ElementCount>35</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201050</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200953</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106336</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2008_To_10_31_2008</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201046</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201060</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_3_31_2008</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20084</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106410</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201042</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106331</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_2_27_2008</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_7_1_2009_To_9_30_20093</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010635</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200992</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200819</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20102324</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106321</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008321</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_11_1_2008_To_11_30_2008</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_7_1_2010_To_9_30_20103</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200912</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201025</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_2010234</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200990</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20105</ContextName>
      <ElementCount>31</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200816</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106318</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2011_To_12_31_2011</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201082</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2007</ContextName>
      <ElementCount>9</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_1_31_20112</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_2009237</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20102222</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008319</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200815</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008317</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106323</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201038</ContextName>
      <ElementCount>16</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_200836</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_2010223</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20102224</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201084</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_3_31_201023</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106411</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2009_To_12_31_20093</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20109</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200911</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_6_30_2010</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20092318</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200723</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_9_30_20102</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201020</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20098</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_8_31_2008</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20073</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008316</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200991</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200914</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_2_25_20104</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200812</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200945</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_4_1_2009_To_6_30_200922</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200946</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201023212</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_3_1_2009_To_3_31_2009</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_4_1_2010_To_6_30_20102</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200974</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201061</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_3_7_20092</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_1_31_20113</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201016</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_2009</ContextName>
      <ElementCount>148</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200969</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106310</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201023</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106413</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_24_2010_To_1_26_2010</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106313</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008339</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2009_To_12_31_200932</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106415</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201032</ContextName>
      <ElementCount>21</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200810</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008311</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_2_25_20103</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201092</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_7_1_2009_To_9_30_2009</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201043</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20103</ContextName>
      <ElementCount>77</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20102325</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200817</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200818</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200918</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_2010311</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201064</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200820</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201045</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200823</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200728</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008313</ContextName>
      <ElementCount>8</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_1_31_20114</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200726</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201043</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200979</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_2009238</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200947</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_3_7_2009</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20102328</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_200837</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201016</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010632</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2008_To_12_31_20083</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200926</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010637</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200966</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200916</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008315</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201023215</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20102326</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_6_30_20093</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20105</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201025</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20092316</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200939</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200814</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201023213</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200921</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200917</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_2010313</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201063</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201047</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_12_1_2008_To_12_31_20082</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_6_30_20094</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_2_1_2011_To_2_28_2011</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2009</ContextName>
      <ElementCount>85</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_2_25_20102</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201051</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201037</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200951</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_3_31_20092</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200978</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201020</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106412</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_11_19_20092</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_4_1_2009_To_6_30_2009222</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200918</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_4_1_2009_To_6_30_20093</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008330</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20102225</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201010</ContextName>
      <ElementCount>8</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008337</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20082</ContextName>
      <ElementCount>17</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200993</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200967</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_1_31_2011</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008340</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008325</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201053</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201093</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200922</ContextName>
      <ElementCount>14</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200920</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_6_30_20092</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200919</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200930</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_2_25_2010</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010638</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106324</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201011</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20094</ContextName>
      <ElementCount>34</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20099</ContextName>
      <ElementCount>11</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201056</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20092310</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_3_31_2009</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106327</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2010_To_12_31_20102</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_4_1_2009_To_6_30_20092</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201027</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20095</ContextName>
      <ElementCount>30</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2009_To_12_31_20092</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201023214</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200822</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20092312</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201031</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_3_31_2010222</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_11_1_2009_To_11_30_2009</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_9_30_2010</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2005</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_200822</ContextName>
      <ElementCount>80</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20092</ContextName>
      <ElementCount>78</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201023217</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201012</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200727</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200980</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200933</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_20082</ContextName>
      <ElementCount>147</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_9_30_20092</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200968</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200919</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201023216</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201034</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201018</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200961</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_2009235</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_11_1_2009_To_11_30_20092</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010648</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200915</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_6_30_2009</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_5_5_2008</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_3_31_20103</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200976</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200940</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_3_31_20103</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_2010312</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_8_21_2008</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_11_19_200922</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200963</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_2010</ContextName>
      <ElementCount>254</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201073</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2010_To_12_31_2010222</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008326</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20092319</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200920</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2010_To_12_31_201023</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008338</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201042</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201040</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_3_7_20093</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201036</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106328</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201024</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200935</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201026</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_2010314</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_200833</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200923</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200954</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201054</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20103</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200932</ContextName>
      <ElementCount>7</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010639</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20107</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_6_30_20102</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200938</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201012</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200813</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201034</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_10_1_2010_To_12_31_201022</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20085</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_3_7_20094</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20098</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20102</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200975</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20092313</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200910</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_7_1_2010_To_9_30_20104</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200986</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008320</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010642</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008324</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200924</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201035</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_9_30_20103</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106330</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106335</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106320</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_11_19_20095</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008323</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20096</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_12_1_2010_To_12_31_2010</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008318</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200922</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20108</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200729</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106333</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010633</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106325</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_2010233</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201038</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106419</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_11_19_2009</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_200825</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106417</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201024</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200821</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_2_28_2011</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106326</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200960</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010645</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201013</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106316</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200977</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20092</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_200917</ContextName>
      <ElementCount>5</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_2010232</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201062</ContextName>
      <ElementCount>13</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200944</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201057</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201046</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_3_31_2010</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_4_1_2010_To_6_30_201022</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_2_1_2008_To_2_29_2008</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20097</ContextName>
      <ElementCount>13</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010646</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201014</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20087</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2008</ContextName>
      <ElementCount>6</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_7_1_2010_To_9_30_201022</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201010</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_1_31_20116</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200928</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_9_30_20102</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201032</ContextName>
      <ElementCount>80</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200962</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201059</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_2010647</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20106</ContextName>
      <ElementCount>4</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_2010310</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201026</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201017</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_7_1_2010_To_9_30_2010</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200983</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2001_To_12_31_2001</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_20106312</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_3_31_20092</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_7_1_2009_To_9_30_200922</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_201049</ContextName>
      <ElementCount>8</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200916</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_20102323</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>As_Of_12_31_200927</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2010_To_12_31_201033</ContextName>
      <ElementCount>68</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2009_To_12_31_20092317</ContextName>
      <ElementCount>1</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_200832</ContextName>
      <ElementCount>2</ElementCount>
    </ContextSummary>
    <ContextSummary>
      <ContextName>Duration_1_1_2008_To_12_31_2008336</ContextName>
      <ElementCount>3</ElementCount>
    </ContextSummary>
  </ContextSummary>
  <BaseTaxonomies />
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
