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  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="USD">1919</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="USD">1528</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="USD">1650</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="USD">1888</rr:ExpenseExampleNoRedemptionYear05>
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  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="USD">2363</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="USD">1919</rr:ExpenseExampleYear05>
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  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="USD">2038</rr:ExpenseExampleNoRedemptionYear05>
  <rr:BarChartYearToDateReturnDate contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
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  <rr:RiskReturnHeading contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;P STYLE="margin-top:0px;margin-bottom:0px"&gt;&lt;FONT STYLE="font-family:ARIAL" SIZE="6" color="#666666"&gt;Legg Mason&lt;/FONT&gt;&lt;br/&gt;&lt;FONT STYLE="font-family:ARIAL" SIZE="6" color="#666666"&gt; Esemplia &lt;/FONT&gt;&lt;/P&gt;&lt;P STYLE="margin-top:0px;margin-bottom:0px"&gt;&lt;FONT STYLE="font-family:ARIAL" SIZE="6" COLOR="#508541"&gt;Emerging &lt;/FONT&gt;&lt;/P&gt;&lt;P STYLE="margin-top:0px;margin-bottom:0px"&gt;&lt;FONT STYLE="font-family:ARIAL" SIZE="6" COLOR="#508541"&gt;Markets&lt;/FONT&gt;&lt;/P&gt;&lt;P STYLE="margin-top:0px;margin-bottom:0px"&gt;&lt;FONT STYLE="font-family:ARIAL" SIZE="6" COLOR="#508541"&gt;Equity&lt;/FONT&gt;&lt;/P&gt;&lt;P STYLE="margin-top:0px;margin-bottom:0px"&gt;&lt;FONT STYLE="font-family:ARIAL" SIZE="6" COLOR="#508541"&gt;Fund&lt;/FONT&gt;&lt;/P&gt;</rr:RiskReturnHeading>
  <rr:ExpenseBreakpointDiscounts contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $25,000 in funds sold by Legg Mason Investor Services, LLC (&amp;#147;LMIS&amp;#148;), the fund&amp;#146;s distributor. &lt;/font&gt;</rr:ExpenseBreakpointDiscounts>
  <rr:ShareholderFeesCaption contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#508541"&gt;&lt;b&gt;Shareholder fees &lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="1" color="#508541"&gt;(fees paid directly from your investment)&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.0575</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="1" color="#666666"&gt;&amp;#147;Other expenses&amp;#148; for Class FI, Class R and Class R1 shares are estimated for the current fiscal year. Actual expenses may differ from estimates. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="USD">1528</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="USD">1650</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="USD">1888</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="USD">1328</rr:ExpenseExampleYear05>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;The fund pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#147;turns over&amp;#148; its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund&amp;#146;s performance. During the most recent fiscal year, the fund&amp;#146;s portfolio turnover rate was 94% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;http://www.leggmason.com/individualinvestors/products/mutual-funds/annualized_performance (select share class)&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.045</rr:BarChartYearToDateReturn>
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  <dei:EntityRegistrantName contextRef="Duration_01Oct2011_30Sep2012">LEGG MASON PARTNERS EQUITY TRUST</dei:EntityRegistrantName>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;The accompanying table describes the fees and expenses that you may pay if you buy and hold shares of the fund. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;You may qualify for sales charge discounts if you and your family invest, or agree to invest in the future, at least $25,000 in funds sold by Legg Mason Investor Services, LLC (&amp;#147;LMIS&amp;#148;), the fund&amp;#146;s distributor. More information about these and other discounts is available from your financial intermediary, in this Prospectus on page 24 under the heading &amp;#147;Sales charges&amp;#148; and in the fund&amp;#146;s statement of additional information (&amp;#147;SAI&amp;#148;) on page 65 under the heading &amp;#147;Sales Charge Waivers and Reductions.&amp;#148;&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;The fund no longer offers Class B shares and Class R1 shares for purchase by new or existing investors. Class B shares will continue to be available for dividend reinvestment and incoming exchanges.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseBreakpointMinimumInvestmentRequiredAmount decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_Member" unitRef="USD">25000</rr:ExpenseBreakpointMinimumInvestmentRequiredAmount>
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  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:OperatingExpensesCaption contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#508541"&gt;&lt;b&gt;Annual fund operating expenses &lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="1" color="#508541"&gt;(expenses that you pay each year as a percentage of the value of&lt;br&gt;your investment)&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="1" color="#666666"&gt;Total annual fund operating expenses do not correlate with the ratios of expenses to average net assets reported in the financial highlights tables in the Prospectus and in the fund&amp;#146;s shareholder reports, because the ratios in the financial highlights tables reflect the fund&amp;#146;s historical operating expenses and do not include acquired fund fees and expenses.&lt;/font&gt;</rr:ExpensesNotCorrelatedToRatioDueToAcquiredFundFees>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="USD">781</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="USD">769</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="USD">381</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="USD">206</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="USD">231</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="USD">281</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="USD">140</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="USD">4422</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="USD">3760</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="USD">4068</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="USD">3328</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="USD">3560</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="USD">4003</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="USD">2970</rr:ExpenseExampleNoRedemptionYear10>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;The bar chart shows changes in the fund&amp;#146;s performance from year to year for Class A shares. The table shows the average annual total returns of each class of the fund that has been in operation for at least one full calendar year and also compares the fund&amp;#146;s performance with the average annual total returns of an index or other benchmark.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceAvailabilityPhone contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;1-877-721-1926&lt;/font&gt;</rr:PerformanceAvailabilityPhone>
  <rr:BarChartClosingTextBlock contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;center&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#666666" size="2"&gt;Calendar Years ended December 31&lt;/font&gt;&lt;/center&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#666666" size="1"&gt;Best quarter&lt;br/&gt;(06/30/2009): 43.81&lt;br/&gt;&lt;br/&gt;Worst quarter&lt;br/&gt;(12/31/2008): (30.58)&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#666666" size="1"&gt;The year-to-date return as of the most recent calendar quarter, which ended 06/30/2012, was&lt;u&gt; 4.50&lt;/u&gt;&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:AverageAnnualReturnInceptionDate id="Item_2" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member">2005-01-03</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate id="Item_3" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member">2005-09-07</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate id="Item_4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member">2005-08-11</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate id="Item_5" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member">2005-01-05</rr:AverageAnnualReturnInceptionDate>
  <rr:BarChartTableTextBlock contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;div style="display:none"&gt;~ http://www.leggmason.com/role/ScheduleAnnualTotalReturnsLeggMasonEsempliaEmergingMarketsEquityFundBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate id="Item_6" contextRef="Duration_01Oct2011_30Sep2012AfterTaxesOnDistributions_MemberS000016243_MemberC000044892_Member">2005-01-05</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate id="Item_7" contextRef="Duration_01Oct2011_30Sep2012AfterTaxesOnDistributionsAndSales_MemberS000016243_MemberC000044892_Member">2005-01-05</rr:AverageAnnualReturnInceptionDate>
  <dei:DocumentType contextRef="Duration_01Oct2011_30Sep2012">485BPOS</dei:DocumentType>
  <dei:EntityCentralIndexKey contextRef="Duration_01Oct2011_30Sep2012">0000880366</dei:EntityCentralIndexKey>
  <dei:DocumentPeriodEndDate contextRef="Duration_01Oct2011_30Sep2012">2011-10-31</dei:DocumentPeriodEndDate>
  <rr:ObjectiveHeading contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="6" color="#508541"&gt;&lt;a name="tx394006_1"&gt;&lt;/a&gt;Investment objective &lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="6" color="#508541"&gt;&lt;a name="tx394006_2"&gt;&lt;/a&gt;Fees and expenses of the fund &lt;/font&gt;</rr:ExpenseHeading>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="pure">0.05</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="pure">0.01</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumAccountFee id="Item_8" decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="USD">15</rr:MaximumAccountFee>
  <rr:MaximumAccountFee id="Item_9" decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="USD">15</rr:MaximumAccountFee>
  <rr:MaximumAccountFee id="Item_10" decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="USD">15</rr:MaximumAccountFee>
  <rr:MaximumAccountFee id="Item_11" decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:MaximumAccountFee id="Item_12" decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:MaximumAccountFee id="Item_13" decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:MaximumAccountFee id="Item_14" decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="USD">0</rr:MaximumAccountFee>
  <rr:MaximumDeferredSalesChargeOverOther id="Item_15" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:ExpensesOverAssets id="Item_16" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.0315</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_17" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="pure">0.0483</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_18" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="pure">0.0392</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_19" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="pure">0.0309</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_20" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="pure">0.0334</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_21" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="pure">0.0384</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_22" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="pure">0.0274</rr:ExpensesOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_23" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">-0.0112</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_24" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="pure">-0.0205</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_25" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="pure">-0.0114</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_26" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="pure">-0.0106</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_27" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="pure">-0.0106</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_28" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="pure">-0.0106</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_29" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="pure">-0.0136</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:ExpensesRestatedToReflectCurrent contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="1" color="#666666"&gt;&amp;#147;Other expenses&amp;#148; for Class A, Class B, Class C, Class FI, Class R, Class R1 and Class I shares have been restated to reflect current fees. &lt;/font&gt;</rr:ExpensesRestatedToReflectCurrent>
  <rr:AcquiredFundFeesAndExpensesBasedOnEstimates contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="1" color="#666666"&gt;Acquired fund fees and expenses are estimated for the current fiscal year. Actual expenses may differ from estimates.&lt;/font&gt;</rr:AcquiredFundFeesAndExpensesBasedOnEstimates>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="1" color="#666666"&gt;December 31, 2013&lt;/font&gt;</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes: &lt;/font&gt;&lt;ul &gt;&lt;li&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;You invest $10,000 in the fund for the time periods indicated&lt;/font&gt;&lt;/li&gt;&lt;/ul&gt;&lt;ul&gt;&lt;li&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;Your investment has a 5% return each year and the fund&amp;#146;s operating expenses remain the same.  &lt;/font&gt;&lt;/li&gt;&lt;/ul&gt;&lt;ul &gt;&lt;li&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;You reinvest all distributions and dividends without a sales charge&lt;/font&gt;&lt;/li&gt;&lt;/ul&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;Although your actual costs may be higher or lower, based on these assumptions your costs would be:&lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleNoRedemptionByYearCaption contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#508541"&gt;&lt;b&gt;Number of years you own your shares &lt;/b&gt;($)&lt;/font&gt;</rr:ExpenseExampleNoRedemptionByYearCaption>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="USD">1392</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="USD">1570</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="USD">1091</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="USD">854</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="USD">929</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="USD">1075</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="USD">721</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="USD">281</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="USD">769</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="USD">281</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="USD">206</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="USD">231</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="USD">281</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="USD">140</rr:ExpenseExampleNoRedemptionYear01>
  <rr:StrategyHeading contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="6" color="#508541"&gt;Principal investment strategies &lt;/font&gt;</rr:StrategyHeading>
  <rr:RiskNarrativeTextBlock contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;Risk is inherent in all investing. There is no assurance that the fund will meet its investment objective. The value of your investment in the fund, as well as the amount of return you receive on your investment, may fluctuate significantly. You may lose part or all of your investment in the fund or your investment may not perform as well as other similar investments. The following is a summary description of certain risks of investing in the fund.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Stock market and interest rate risk.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt; The securities markets are volatile and the market prices of the fund&amp;#146;s securities may decline generally. Securities fluctuate in price based on changes in a company&amp;#146;s financial condition and overall market and economic conditions, such as real or perceived adverse economic or political conditions, inflation, changes in interest rates, lack of liquidity in the bond markets or adverse investor sentiment. If the market prices of the securities owned by the fund fall, the value of your investment in the fund will decline. The value of your investment also may go down when interest rates rise. A rise in rates tends to have a greater impact on the prices of longer term or duration securities. The financial crisis that began in 2008 has caused a significant decline in the value and liquidity of many securities of issuers worldwide; in particular, the values of some sovereign debt and of securities of issuers that purchase sovereign debt have fallen, credit has become more scarce worldwide and there has been significant uncertainty in the markets. In response to the crisis, the U.S. and other governments and the Federal Reserve and certain foreign central banks have taken steps to support financial markets. The withdrawal of this support, failure of efforts in response to the crisis, or investor perception that such efforts are not succeeding could also negatively affect financial markets generally as well as the value and liquidity of certain securities. In addition, legislation recently enacted in the United States is changing many aspects of financial regulation. The impact of the legislation on the markets, and the practical implications for market participants, may not be fully known for some time.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Issuer risk.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt; The value of a security or other instrument can go up or down more than the market as a whole and can perform differently from the value of the market as a whole, often due to disappointing earnings reports, unsuccessful products or services, loss of major customers, major litigation against the issuer or changes in government regulations affecting the issuer or the competitive environment. The fund may experience a substantial or complete loss on an individual security or instrument. Historically, the prices of investments in small and medium capitalization companies have generally gone up or down more than those of large capitalization companies, although even large capitalization companies may fall out of favor with investors. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Foreign investments risk.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt; The fund&amp;#146;s investments in securities of foreign issuers or issuers with significant exposure to foreign markets involve greater risk than investments in securities of U.S. issuers. The value of the fund&amp;#146;s securities may decline because of factors affecting foreign markets and issuers generally, such as unfavorable government actions, political or financial instability or the more limited availability of accurate information about foreign issuers, as well as factors affecting the particular issuers. Foreign countries in which the fund may invest may have markets that are less liquid and more volatile than U.S. markets. Currency fluctuations could erase investment gains or add to investment losses.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt; The risks of investments tied to foreign securities are heightened when investing in issuers in emerging market countries. Emerging markets securities are often particularly sensitive to market movements because their market prices tend to reflect future expectations. When it appears those expectations will not be met, the prices of these securities typically fall.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Derivatives risk.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt; Using derivatives may have a leveraging effect, which may result in a disproportionate increase in fund losses to the investment, and reduce opportunities for gains when market prices, interest rates or the derivative instruments themselves behave in a way not anticipated by the fund. Using derivatives also can increase fund volatility. Derivatives may be difficult to sell, unwind or value, and the counterparty may default on its obligations to the fund. The fund may incur additional costs related to derivatives, such as transaction costs and custody expenses, which can adversely affect the fund&amp;#146;s performance. Recent legislation calls for new regulation of the derivatives markets. The extent and impact of the regulation are not yet fully known and may not be for some time. New regulation of derivatives may make them more costly, may limit their availability, or may otherwise adversely affect their value or performance. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Hedging risk.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;  When a derivative is used as a hedge against a position that the fund holds, any loss generated by the derivative generally should be substantially offset by gains on the hedged investment, and vice versa. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains. Hedges are sometimes subject to imperfect matching between the derivative and the underlying security, and there can be no assurance that the fund&amp;#146;s hedging transactions will be effective.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Short sales risk.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt; If the price of the security sold short increases between the time of the short sale and the time the fund replaces the borrowed security, the fund will realize a loss, which may be substantial. The short sale of securities involves the possibility of a theoretically unlimited loss since there is a theoretically unlimited potential for the market price of the security sold short to increase. The fund may incur additional costs related to short selling, which can adversely affect the fund&amp;#146;s performance.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Credit risk.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt; If an issuer or guarantor of a security or other instrument held by the fund or a counterparty to a financial contract (including a short sale or swap) with the fund defaults or is downgraded, or is perceived to be less creditworthy, or if the value of the assets underlying a security or other instrument declines, the value of your investment will typically decline. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Portfolio turnover risk.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt; Active and frequent trading may increase a shareholder&amp;#146;s tax liability and transaction costs, which could detract from fund performance.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Small and medium capitalization company risk.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt; The fund will be exposed to additional risks as a result of its investments tied to small and medium capitalization companies. Small and medium capitalization companies may fall out of favor with investors; may have limited product lines, operating histories, markets or financial resources; or may be dependent upon a limited management group. The prices of investments in small and medium capitalization companies generally are more volatile than those of large capitalization companies and are more likely to be adversely affected than large capitalization companies by changes in earnings results and investor expectations or poor economic or market conditions, including those experienced during a recession. Investments in small and medium capitalization companies may underperform large capitalization companies, may be harder to sell at times and at prices the portfolio manager believes appropriate and may offer greater potential for losses. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Liquidity risk.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;  Some assets held by the fund may be difficult to sell, or illiquid, particularly during times of market turmoil. Illiquid assets may also be difficult to value. If the fund is forced to sell an illiquid asset to meet redemption requests or other cash needs, the fund may be forced to sell at a loss. &lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Valuation risk.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;  The sales price the fund could receive for any particular portfolio investment may differ from the fund&amp;#146;s valuation of the investment, particularly for securities that trade in thin or volatile markets or that are valued using a fair value methodology. Investors who purchase or redeem fund shares on days when the fund is holding fair-valued securities may receive fewer or more shares or lower or higher redemption proceeds than they would have received if the fund had not fair-valued the security or had used a different valuation methodology.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Portfolio selection risk.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt; The value of your investment may decrease if the portfolio manager&amp;#146;s judgment about the attractiveness, value or market trends affecting a particular security or other instrument, industry or sector or about market movements is incorrect.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Regulatory risk.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt; In February 2012, the Commodity Futures Trading Commission (the &amp;#147;CFTC&amp;#148;) adopted certain regulatory changes that could subject the manager of the fund to registration with the CFTC as a commodity pool operator (&amp;#147;CPO&amp;#148;) if the fund is unable to comply with certain trading and marketing limitations. Compliance with these additional registration and regulatory requirements would increase fund expenses. In the event that the manager is required to register as a CPO, the fund&amp;#146;s disclosure and operations would need to comply with all applicable CFTC regulations. The fund and the manager are continuing to analyze the effect of these rules changes on the fund. In addition, the Securities and Exchange Commission (the &amp;#147;SEC&amp;#148;) or the CFTC could at any time alter the current regulatory requirements governing the use of derivatives by mutual funds.&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: ARIAL" color="#508541" size="2"&gt;&lt;b&gt;Risk of increase in expenses.&lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt; Your actual costs of investing in the fund may be higher than the expenses shown in &amp;#147;Annual fund operating expenses&amp;#148; for a variety of reasons. For example, expense ratios may be higher than those shown if a fee limitation is changed or terminated or if average net assets decrease. Net assets are more likely to decrease and fund expense ratios are more likely to increase when markets are volatile. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;These risks are discussed in more detail later in this Prospectus or in the SAI.&lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;You may lose part or all of your investment in the fund or your investment may not perform as well as other similar investments.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member">&lt;font style="FONT-FAMILY: ARIAL" color="#666666" size="1"&gt;Worst quarter&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.4381</rr:BarChartHighestQuarterlyReturn>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">-0.2806</rr:AnnualReturn2011>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;Prior to October 1, 2012, the fund followed a different investment objective and investment strategies under the name Legg Mason Esemplia Emerging Markets Equity Fund. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;The after-tax returns are shown only for Class A shares, are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor&amp;#146;s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. After-tax returns for classes other than Class A will vary from returns shown for Class A. &lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;Actual after-tax returns depend on an investor&amp;#146;s tax situation and may differ from those shown, and the after-tax returns shown are not relevant to investors who hold their fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <dei:DocumentCreationDate contextRef="Duration_01Oct2011_30Sep2012">2012-09-26</dei:DocumentCreationDate>
  <rr:PerformanceTableHeading contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#508541"&gt;&lt;b&gt;Average annual total returns &lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="1" color="#508541"&gt;(for periods ended December 31, 2011)&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#508541"&gt;&lt;b&gt; (%)&lt;/b&gt;&lt;/font&gt;</rr:PerformanceTableHeading>
  <dei:AmendmentFlag contextRef="Duration_01Oct2011_30Sep2012">false</dei:AmendmentFlag>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="3" color="#666666"&gt;Effective October 1, 2012, the fund seeks to provide long-term total return.&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.0085</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="pure">0.0085</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="pure">0.0085</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="pure">0.0085</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="pure">0.0085</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="pure">0.0085</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="pure">0.0085</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="pure">0.005</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_30" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="pure">0.0295</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_31" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.0202</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_32" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="pure">0.0204</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_33" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="pure">0.0186</rr:OtherExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_34" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.0003</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_35" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="pure">0.0003</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_36" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="pure">0.0003</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_37" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="pure">0.0003</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_38" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="pure">0.0003</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_39" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="pure">0.0003</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:AcquiredFundFeesAndExpensesOverAssets id="Item_40" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="pure">0.0003</rr:AcquiredFundFeesAndExpensesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.0203</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="pure">0.0278</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="pure">0.0278</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="pure">0.0203</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="pure">0.0228</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="pure">0.0278</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="pure">0.0138</rr:NetExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="USD">3760</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="USD">4422</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="USD">4068</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="USD">3328</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="USD">3560</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="USD">4003</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="USD">2970</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="USD">1392</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="USD">1270</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="USD">1091</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="USD">854</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="USD">929</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="USD">1075</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="USD">721</rr:ExpenseExampleNoRedemptionYear03>
  <rr:PortfolioTurnoverHeading contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#508541"&gt;&lt;b&gt;Portfolio turnover.&lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_Member" unitRef="pure">0.94</rr:PortfolioTurnoverRate>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;Prior to October 1, 2012, the fund followed a different investment objective and investment strategies under the name Legg Mason Esemplia Emerging Markets Equity Fund.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;Under normal circumstances, the fund invests at least 80% of its net assets, plus borrowings for investment purposes, if any, in equity securities and related instruments issued by, or tied economically to, companies in emerging markets.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;The fund considers emerging market nations to include countries that, at the time the fund makes an investment, are categorized by the World Bank and its affiliates as &amp;#147;low income&amp;#148; or &amp;#147;middle income,&amp;#148; are included in the Morgan Stanley Capital International (MSCI) Emerging Markets Index or are believed by the subadviser to have similar characteristics to emerging market nations. The fund considers an equity security or related instrument to be issued by a company in an emerging market if such investment satisfies one or more of the following conditions: (1) the issuer has a class of securities listed in an emerging market country; (2) the issuer is organized under the laws of, or has a principal office in, an emerging market country; (3) the issuer derives at least 50% of its revenue from goods produced, sales made or services provided in one or more emerging market countries; or (4) the issuer maintains 50% or more of its assets in one or more emerging market countries. The fund considers a security or related instrument to be tied economically to an emerging market if its value is based on an emerging market equity security(ies). &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;Generally, the fund invests in a number of different countries. Under normal circumstances, the fund invests in companies in at least eight markets and does not invest more than 25% of its assets in any one country. The fund invests across a range of industries. The fund may invest in securities of issuers of any market capitalization and in securities denominated in either U.S. dollars or foreign currencies. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;The fund pursues its investment objective by taking both long and short positions, primarily through equity securities (including exchange-traded funds (&amp;#147;ETFs&amp;#148;)) and equity-linked notes and the use of swap agreements, options, futures and other derivative instruments, and may invest in such instruments without limitation (subject to the fund&amp;#146;s 80% investment policy). The subadviser may use derivative transactions or engage in short sales of equity securities to vary the fund&amp;#146;s market exposure. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;A long position arises where the fund holds a security in its portfolio or maintains a position through a derivative instrument that provides economic exposure similar to direct ownership of the security. The fund will have a short position where it sells a security it does not own by delivery of a borrowed security or has entered into a derivative instrument that provides economic exposure similar to a short sale of the security.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;Although the fund intends to maintain an overall long position in its portfolio investments, the fund generally expects to maintain significant short positions in equity securities and equity-related instruments. In certain circumstances, these short positions may approach or reach the size of the overall long position. In addition, at times the fund&amp;#146;s short positions may hedge against all or most of its investment exposure to emerging market securities. &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskHeading contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="6" color="#508541"&gt;Certain risks &lt;/font&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="6" color="#508541"&gt;Performance &lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;The accompanying bar chart and table provide some indication of the risks of investing in the fund. The bar chart shows changes in the fund&amp;#146;s performance from year to year for Class A shares. The table shows the average annual total returns of each class of the fund that has been in operation for at least one full calendar year and also compares the fund&amp;#146;s performance with the average annual total returns of an index or other benchmark. The fund also compares its performance to a composite benchmark of 50% MSCI Emerging Markets Index and 50% Citigroup 90-Day T-Bill Index (an unmanaged index representing monthly return equivalents of yield averages of the last three 3-month Treasury Bill issues). The fund makes updated performance information available at the fund&amp;#146;s website, http://www.leggmason.com/individualinvestors/products/mutual-funds/annualized_performance (select share class), or by calling the fund at 1-877-721-1926. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;&lt;i&gt;The fund&amp;#146;s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. &lt;/i&gt;&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;Sales charges are not reflected in the accompanying bar chart, and if those charges were included, returns would be less than those shown.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;&lt;i&gt;The fund&amp;#146;s past performance (before and after taxes) is not necessarily an indication of how the fund will perform in the future. &lt;/i&gt;&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:BarChartDoesNotReflectSalesLoads contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;Sales charges are not reflected in the accompanying bar chart, and if those charges were included, returns would be less than those shown.&lt;/font&gt;</rr:BarChartDoesNotReflectSalesLoads>
  <rr:BarChartHeading contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#508541"&gt;&lt;b&gt;Total returns &lt;/b&gt;&lt;/font&gt;&lt;font style="font-family:ARIAL" size="1" color="#508541"&gt;(before taxes)&lt;/font&gt;&lt;font style="font-family:ARIAL" size="2" color="#508541"&gt;&lt;b&gt; (%)&lt;/b&gt;&lt;/font&gt;</rr:BarChartHeading>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member">&lt;font style="FONT-FAMILY: ARIAL" color="#666666" size="1"&gt;Best quarter&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:YearToDateReturnLabel contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member">&lt;font style="FONT-FAMILY: ARIAL" color="#666666" size="1"&gt;The year-to-date return as of the most recent calendar quarter &lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">-0.3058</rr:BarChartLowestQuarterlyReturn>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.3237</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.3548</rr:AnnualReturn2007>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">-0.5572</rr:AnnualReturn2008>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.8775</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.1507</rr:AnnualReturn2010>
  <rr:AverageAnnualReturnYear01 id="Item_41" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">-0.322</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_42" decimals="4" contextRef="Duration_01Oct2011_30Sep2012AfterTaxesOnDistributions_MemberS000016243_MemberC000044892_Member" unitRef="pure">-0.3262</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_43" decimals="4" contextRef="Duration_01Oct2011_30Sep2012AfterTaxesOnDistributionsAndSales_MemberS000016243_MemberC000044892_Member" unitRef="pure">-0.2093</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_44" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="pure">-0.3221</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_45" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="pure">-0.2933</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_46" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="pure">-0.2766</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberMsciEmergingMarketsIndex_Member" unitRef="pure">-0.1842</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberCompositeBenchmark_Member" unitRef="pure">-0.0897</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear05 id="Item_47" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">-0.0255</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 id="Item_48" decimals="4" contextRef="Duration_01Oct2011_30Sep2012AfterTaxesOnDistributions_MemberS000016243_MemberC000044892_Member" unitRef="pure">-0.0328</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 id="Item_49" decimals="4" contextRef="Duration_01Oct2011_30Sep2012AfterTaxesOnDistributionsAndSales_MemberS000016243_MemberC000044892_Member" unitRef="pure">-0.0242</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 id="Item_50" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="pure">-0.0247</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 id="Item_51" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="pure">-0.0227</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 id="Item_52" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="pure">-0.006</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberMsciEmergingMarketsIndex_Member" unitRef="pure">0.024</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberCompositeBenchmark_Member" unitRef="pure">0.0301</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnSinceInception id="Item_53" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044892_Member" unitRef="pure">0.0604</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception id="Item_54" decimals="4" contextRef="Duration_01Oct2011_30Sep2012AfterTaxesOnDistributions_MemberS000016243_MemberC000044892_Member" unitRef="pure">0.0501</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception id="Item_55" decimals="4" contextRef="Duration_01Oct2011_30Sep2012AfterTaxesOnDistributionsAndSales_MemberS000016243_MemberC000044892_Member" unitRef="pure">0.0478</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception id="Item_56" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044893_Member" unitRef="pure">0.0422</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception id="Item_57" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044894_Member" unitRef="pure">0.0416</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception id="Item_58" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000044895_Member" unitRef="pure">0.077</rr:AverageAnnualReturnSinceInception>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;The after-tax returns are shown only for Class A shares, are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceTableOneClassOfAfterTaxShown contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;font style="font-family:ARIAL" size="2" color="#666666"&gt;After-tax returns for classes other than Class A will vary from returns shown for Class A. &lt;/font&gt;</rr:PerformanceTableOneClassOfAfterTaxShown>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;div style="display:none"&gt;~ http://www.leggmason.com/role/ScheduleExpenseExampleTransposedLeggMasonEsempliaEmergingMarketsEquityFund column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ExpenseExampleNoRedemptionTableTextBlock contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;div style="display:none"&gt;~ http://www.leggmason.com/role/ScheduleExpenseExampleNoRedemptionTransposedLeggMasonEsempliaEmergingMarketsEquityFund column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleNoRedemptionTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_01Oct2011_30Sep2012S000016243_Member">&lt;div style="display:none"&gt;~ http://www.leggmason.com/role/ScheduleAverageAnnualTotalReturnsTransposedLeggMasonEsempliaEmergingMarketsEquityFund column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <dei:DocumentEffectiveDate contextRef="Duration_01Oct2011_30Sep2012">2012-09-30</dei:DocumentEffectiveDate>
  <rr:ProspectusDate contextRef="Duration_01Oct2011_30Sep2012">2012-09-30</rr:ProspectusDate>
  <rr:OtherExpensesOverAssets id="Item_59" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059791_Member" unitRef="pure">0.0196</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_60" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000059792_Member" unitRef="pure">0.0196</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_61" decimals="4" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberC000083426_Member" unitRef="pure">0.0196</rr:OtherExpensesOverAssets>
  <rr:AverageAnnualReturnSinceInception xsi:nil="true" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberMsciEmergingMarketsIndex_Member" unitRef="pure" />
  <rr:AverageAnnualReturnSinceInception xsi:nil="true" contextRef="Duration_01Oct2011_30Sep2012S000016243_MemberCompositeBenchmark_Member" unitRef="pure" />
  <link:footnoteLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <link:loc xlink:type="locator" xlink:href="#Item_15" xlink:label="MaximumDeferredSalesChargeOverOther" />
    <link:footnote xlink:type="resource" xlink:label="footnote_MaximumDeferredSalesChargeOverOther" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_MaximumDeferredSalesChargeOverOther">Generally,</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="MaximumDeferredSalesChargeOverOther" xlink:to="footnote_MaximumDeferredSalesChargeOverOther" />
    <link:loc xlink:type="locator" xlink:href="#Item_8" xlink:label="MaximumAccountFee" />
    <link:footnote xlink:type="resource" xlink:label="footnote_MaximumAccountFee" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_MaximumAccountFee">If your shares are held in a direct account and the value of your account is below $1,000 ($250 for retirement plans that are not employer-sponsored), the fund may charge you a fee of $3.75 per account that is determined and assessed quarterly (with an annual maximum of $15.00 per account). Direct accounts generally include accounts held in the name of the individual investor on the fund's books and records.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="MaximumAccountFee" xlink:to="footnote_MaximumAccountFee" />
    <link:loc xlink:type="locator" xlink:href="#Item_9" xlink:label="Item_9_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_9_lbl" xlink:to="footnote_MaximumAccountFee" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_10" xlink:label="Item_10_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_10_lbl" xlink:to="footnote_MaximumAccountFee" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_11" xlink:label="Item_11_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_11_lbl" xlink:to="footnote_MaximumAccountFee" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_12" xlink:label="Item_12_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_12_lbl" xlink:to="footnote_MaximumAccountFee" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_13" xlink:label="Item_13_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_13_lbl" xlink:to="footnote_MaximumAccountFee" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_14" xlink:label="Item_14_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_14_lbl" xlink:to="footnote_MaximumAccountFee" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_30" xlink:label="OtherExpensesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_OtherExpensesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_OtherExpensesOverAssets">"Other expenses" for Class A, Class B, Class C, Class FI, Class R, Class R1 and Class I shares have been restated to reflect current fees.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="OtherExpensesOverAssets" xlink:to="footnote_OtherExpensesOverAssets" />
    <link:loc xlink:type="locator" xlink:href="#Item_31" xlink:label="Item_31_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_32" xlink:label="Item_32_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_32_lbl" xlink:to="footnote_OtherExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_33" xlink:label="Item_33_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_33_lbl" xlink:to="footnote_OtherExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_59" xlink:label="Item_59_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_59_lbl" xlink:to="footnote_OtherExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:footnote xlink:type="resource" xlink:label="footnote_OtherExpensesOverAssets_2" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_OtherExpensesOverAssets_2">"Other expenses" for Class FI, Class R and Class R1 shares are estimated for the current fiscal year. Actual expenses may differ from estimates.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_59_lbl" xlink:to="footnote_OtherExpensesOverAssets_2" order="2.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_60" xlink:label="Item_60_lbl" />
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    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_60_lbl" xlink:to="footnote_OtherExpensesOverAssets_2" use="optional" priority="0" order="2.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_61" xlink:label="Item_61_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_61_lbl" xlink:to="footnote_OtherExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_61_lbl" xlink:to="footnote_OtherExpensesOverAssets_2" use="optional" priority="0" order="2.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_34" xlink:label="AcquiredFundFeesAndExpensesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_AcquiredFundFeesAndExpensesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_AcquiredFundFeesAndExpensesOverAssets">Acquired fund fees and expenses are estimated for the current fiscal year. Actual expenses may differ from estimates.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="AcquiredFundFeesAndExpensesOverAssets" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" />
    <link:loc xlink:type="locator" xlink:href="#Item_35" xlink:label="Item_35_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_36" xlink:label="Item_36_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_36_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_37" xlink:label="Item_37_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_37_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_38" xlink:label="Item_38_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_38_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_39" xlink:label="Item_39_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_39_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_40" xlink:label="Item_40_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_40_lbl" xlink:to="footnote_AcquiredFundFeesAndExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_16" xlink:label="ExpensesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_ExpensesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_ExpensesOverAssets">Total annual fund operating expenses do not correlate with the ratios of expenses to average net assets reported in the financial highlights tables in the Prospectus and in the fund's shareholder reports, because the ratios in the financial highlights tables reflect the fund's historical operating expenses and do not include acquired fund fees and expenses.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="ExpensesOverAssets" xlink:to="footnote_ExpensesOverAssets" />
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    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_17_lbl" xlink:to="footnote_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_18" xlink:label="Item_18_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_18_lbl" xlink:to="footnote_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_19" xlink:label="Item_19_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_19_lbl" xlink:to="footnote_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_20" xlink:label="Item_20_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_20_lbl" xlink:to="footnote_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_21" xlink:label="Item_21_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_21_lbl" xlink:to="footnote_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_22" xlink:label="Item_22_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_22_lbl" xlink:to="footnote_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_23" xlink:label="FeeWaiverOrReimbursementOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_FeeWaiverOrReimbursementOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_FeeWaiverOrReimbursementOverAssets">The manager has agreed to waive fees and/or reimburse operating expenses (other than interest, brokerage (including prime broker fees), taxes, extraordinary expenses, dividend expenses, fees for management of collateral and acquired fund fees and expenses) so that total annual operating expenses are not expected to exceed 2.00% for Class A shares, 2.75% for Class B shares, 2.75% for Class C shares, 2.00% for Class FI shares, 2.25% for Class R shares, 2.75% for Class R1 shares and 1.35% for Class I shares. These arrangements cannot be terminated prior to December 31, 2013 without the Board of Trustees' consent. The manager is permitted to recapture amounts waived and/or reimbursed to a class during the same fiscal year if the class' total annual operating expenses have fallen to a level below the limits described above.</link:footnote>
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    <link:loc xlink:type="locator" xlink:href="#Item_24" xlink:label="Item_24_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_25" xlink:label="Item_25_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_25_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_26" xlink:label="Item_26_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_26_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_27" xlink:label="Item_27_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_27_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_28" xlink:label="Item_28_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_28_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_29" xlink:label="Item_29_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_29_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_2" xlink:label="AverageAnnualReturnInceptionDate" />
    <link:footnote xlink:type="resource" xlink:label="footnote_AverageAnnualReturnInceptionDate" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_AverageAnnualReturnInceptionDate">For Class A shares, Class B shares, Class C shares and Class I shares, each for the period from the class' commencement of operations to December 31, 2011, the average annual total return of the MSCI Emerging Markets Index was 10.88%, 8.63%, 8.57% and 10.37%, respectively, and the average annual total return of the composite benchmark was 7.38%, 6.31%, 6.27% and 7.12%, respectively.</link:footnote>
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    <link:loc xlink:type="locator" xlink:href="#Item_4" xlink:label="Item_4_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_5" xlink:label="Item_5_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_5_lbl" xlink:to="footnote_AverageAnnualReturnInceptionDate" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_6" xlink:label="Item_6_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_7" xlink:label="Item_7_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_41" xlink:label="Item_41_lbl" />
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    <link:loc xlink:type="locator" xlink:href="#Item_42" xlink:label="Item_42_lbl" />
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