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      <endDate>2012-09-24</endDate>
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  <rr:BarChartYearToDateReturnDate contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
  <rr:BarChartYearToDateReturnDate contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleShareholderFeesInvescoComstockFund column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:BarChartYearToDateReturnDate contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
  <rr:BarChartYearToDateReturnDate contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
  <rr:BarChartYearToDateReturnDate contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
  <rr:ExpenseExampleHeading contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&lt;b&gt;Example.&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica;" size="2"&gt;&lt;b&gt;Example.&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;b&gt;Example.&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleShareholderFeesINVESCOUtilitiesFund column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ExpenseExampleHeading contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;b&gt;Example.&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleShareholderFeesINVESCOTechnologyFund column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleShareholderFeesINVESCOEnergyFund column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleShareholderFeesInvescoAmericanValueFund column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="USD">246</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member" unitRef="USD">230</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="USD">493</rr:ExpenseExampleYear05>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.4437</rr:AnnualReturn2003>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="USD">477</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="USD">471</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="USD">488</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member" unitRef="USD">455</rr:ExpenseExampleYear05>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund 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;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 48% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;www.invesco.com/us&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="USD">428</rr:ExpenseExampleYear05>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;www.invesco.com/us&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;www.invesco.com/us&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;www.invesco.com/us&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:ExpenseExampleHeading contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;b&gt;Example.&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;www.invesco.com/us&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:RiskReturnHeading contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 16pt;"&gt;&lt;b&gt;Fund Summaries - INVESCO TECHNOLOGY FUND&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:ShareholderFeesCaption contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Shareholder Fees &lt;/b&gt;(fees paid directly from your investment)&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:RiskReturnHeading contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 16pt;"&gt;&lt;b&gt;Fund Summaries - INVESCO UTILITIES FUND&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:ShareholderFeesCaption contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Shareholder Fees &lt;/b&gt;(fees paid directly from your investment)&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund 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;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 14% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesInvescoComstockFund column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 16pt;"&gt;&lt;b&gt;Fund Summary - INVESCO VAN KAMPEN COMSTOCK FUND&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:ShareholderFeesCaption contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Shareholder Fees &lt;/b&gt;(fees paid directly from your investment)&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.0883</rr:BarChartYearToDateReturn>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund 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;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 17% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="pure">0.0872</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesINVESCOUtilitiesFund column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Shareholder Fees &lt;/b&gt;(fees paid directly from your investment)&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund pays transaction costs, such as commissions, when it buys and sells securities (or &amp;#8220;turns over&amp;#8221; its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund 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;#8217;s performance. During the most recent fiscal year, the Fund&amp;#8217;s portfolio turnover rate was 61% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 16pt;"&gt;&lt;b&gt;Fund Summaries - INVESCO ENERGY FUND&lt;/b&gt;&lt;/font&gt;</rr:RiskReturnHeading>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesINVESCOTechnologyFund column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">-0.0778</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesINVESCOEnergyFund column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0.0398</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 16pt;"&gt;Fund Summary - INVESCO VAN KAMPEN AMERICAN VALUE FUND&lt;/font&gt;&lt;/b&gt;</rr:RiskReturnHeading>
  <rr:ShareholderFeesCaption contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Shareholder Fees &lt;/b&gt;(fees paid directly from your investment)&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund 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's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 30% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="pure">0.0955</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAnnualFundOperatingExpensesInvescoAmericanValueFund column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;#8220;Other Expenses&amp;#8221; and &amp;#8220;Total Annual Fund Operating Expenses&amp;#8221; for Class R6 shares are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&amp;#8220;Other Expenses&amp;#8221; and &amp;#8220;Total Annual Fund Operating Expenses&amp;#8221; for Class R6 shares are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;#8220;Other Expenses&amp;#8221; and &amp;#8220;Total Annual Fund Operating Expenses&amp;#8221; for Class&amp;nbsp;R6&amp;nbsp;shares&amp;nbsp;are based on estimated amounts for the current fiscal year.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="USD">45</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member" unitRef="USD">42</rr:ExpenseExampleYear01>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="USD">91</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="USD">88</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="USD">87</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member">1998-12-21</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000000160_MemberC000023158_Member">1998-12-21</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000000160_MemberC000023158_Member">1998-12-21</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member">2012-09-24</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000000161_MemberC000029688_Member">2005-10-25</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000000161_MemberC000029688_Member">2005-10-25</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member">2005-10-25</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="USD">90</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member" unitRef="USD">84</rr:ExpenseExampleYear01>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Annual Fund Operating Expenses &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment)&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&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.  &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&amp;#8217;s operating expenses remain the same.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Although your actual costs may be higher or lower, based on these assumptions, your costs would be:&lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Class R5 shares year-to-date (ended June 30, 2012): 8.83%&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Best Quarter (ended June 30, 2003): 20.07%&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Worst Quarter (ended September 30, 2002): -29.85%&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Average Annual Total Returns&lt;/b&gt; (for the periods ended December 31, 2011)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Annual Fund Operating Expenses &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment)&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&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.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&amp;#8217;s operating expenses remain the same.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Although your actual costs may be higher or lower, based on these assumptions, your costs would be:&lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund&amp;#8217;s performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to the Fund.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:BarChartClosingTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Class R5 shares year-to-date (ended June 30, 2012): 3.98% &lt;br/&gt; Best Quarter (ended June 30, 2009): 12.21% &lt;br/&gt; Worst Quarter (ended September 30, 2008): -20.22%&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Average Annual Total Returns&lt;/b&gt; (for the periods ended December 31, 2011)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:BarChartTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsInvescoComstockFundBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Annual Fund Operating Expenses &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment)&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:PerformanceTableHeading contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Average Annual Total Returns &lt;/b&gt;(for the periods ended December 31, 2011)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &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.&lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&amp;#8217;s operating expenses remain the same.&lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; Although your actual costs may be higher or lower, based on these assumptions your costs would be:&lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">0</rr:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="USD">79</rr:ExpenseExampleYear01>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member">2012-09-24</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member">2010-06-01</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000027832_MemberC000084471_Member">2010-06-01</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000027832_MemberC000084471_Member">2010-06-01</rr:AverageAnnualReturnInceptionDate>
  <dei:EntityRegistrantName contextRef="Duration_25Sep2011_24Sep2012">AIM SECTOR FUNDS (INVESCO SECTOR FUNDS)</dei:EntityRegistrantName>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund&amp;#8217;s performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to the Fund.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:BarChartClosingTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Class R5 shares year-to-date&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;(ended June 30, 2012): 8.72%&lt;br/&gt;Best Quarter (ended December 31, 2011): 12.20%&lt;br/&gt;Worst Quarter (ended September 30, 2011): (17.11)%&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund&amp;#8217;s and Van Kampen Comstock Fund&amp;#8217;s (the predecessor fund) performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000027834_MemberC000084483_Member">2010-06-01</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member">2012-09-24</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member">2010-06-01</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000027834_MemberC000084483_Member">2010-06-01</rr:AverageAnnualReturnInceptionDate>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.  &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Annual Fund Operating Expenses &lt;/b&gt;(expenses that you pay each year as a percentage of the value of your investment)&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&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. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund&amp;#8217;s operating expenses remain the same. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Although your actual costs may be higher or lower, based on these assumptions, your costs would be: &lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Average Annual Total Returns&lt;/b&gt; (for the periods ended December 31, 2011)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund&amp;#8217;s performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to the Fund.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:BarChartTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsINVESCOUtilitiesFundBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Class R5 shares year-to-date (ended June 30, 2012): -7.78%&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Best Quarter (ended June 30, 2008): 27.15%&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Worst Quarter (ended September 30, 2008): -35.03% &lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsINVESCOTechnologyFundBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsINVESCOEnergyFundBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:OperatingExpensesCaption contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Annual Fund Operating Expenses&lt;/b&gt; (expenses that you pay each year as a percentage of the value of your investment)&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&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.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:&lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Class R5 shares year-to-date (ended June 30, 2012): 9.55%&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Best Quarter (ended December 31, 2011): 17.15%&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Worst Quarter (ended September 30, 2011): (19.65)%&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund&amp;#8217;s and Van Kampen American Value Fund&amp;#8217;s (the predecessor fund) performance to that of a broad-based securities market benchmark, style-specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:BarChartTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAnnualTotalReturnsInvescoAmericanValueFundBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000000155_MemberC000023157_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:AverageAnnualReturnInceptionDate contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000000155_MemberC000023157_Member">2006-01-31</rr:AverageAnnualReturnInceptionDate>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:ExpensesOverAssets id="Item_2" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="pure">0.0044</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_3" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member" unitRef="pure">0.0041</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="USD">141</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member" unitRef="USD">132</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="pure">-0.0146</rr:AnnualReturn2011>
  <rr:AverageAnnualReturnYear10 id="Item_4" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="pure">0.0336</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 id="Item_5" decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000027834_MemberC000084483_Member" unitRef="pure">0.0276</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 id="Item_6" decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000027834_MemberC000084483_Member" unitRef="pure">0.0283</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 id="Item_7" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member" unitRef="pure">0.0329</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberSAndPFiveHundredIndex_Member" unitRef="pure">0.0292</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberRussellTenHundredValueIndex_Member" unitRef="pure">0.0389</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberLipperLargecapValueIndex_Member" unitRef="pure">0.0259</rr:AverageAnnualReturnYear10>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.0089</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="USD">284</rr:ExpenseExampleYear03>
  <rr:ExpensesOverAssets id="Item_8" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0.0086</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_9" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="pure">0.0085</rr:ExpensesOverAssets>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">-0.4678</rr:AnnualReturn2002>
  <rr:ExpensesOverAssets id="Item_10" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="pure">0.0088</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets id="Item_11" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member" unitRef="pure">0.0082</rr:ExpensesOverAssets>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">-0.4419</rr:AnnualReturn2008>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">-0.0261</rr:AnnualReturn2011>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="USD">274</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="USD">271</rr:ExpenseExampleYear03>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.0038</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000000160_MemberC000023158_Member" unitRef="pure">0.0038</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000000160_MemberC000023158_Member" unitRef="pure">0.0032</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberSAndPFiveHundredIndex_Member" unitRef="pure">0.0292</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberBofaMerrillLynchOneHundredTechnologyIndex_Member" unitRef="pure">0.0212</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberLipperScienceAndTechnologyFundsIndex_Member" unitRef="pure">0.0174</rr:AverageAnnualReturnYear10>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">-0.3228</rr:AnnualReturn2008>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0.1671</rr:AnnualReturn2011>
  <rr:AverageAnnualReturnYear10 xsi:nil="true" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure" />
  <rr:AverageAnnualReturnYear10 xsi:nil="true" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000000161_MemberC000029688_Member" unitRef="pure" />
  <rr:AverageAnnualReturnYear10 xsi:nil="true" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000000161_MemberC000029688_Member" unitRef="pure" />
  <rr:AverageAnnualReturnYear10 id="Item_12" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="pure">0.0663</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberSAndPFiveHundredIndex_Member" unitRef="pure">0.0292</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberSAndPUtilitiesIndex_Member" unitRef="pure">0.0642</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberLipperUtilityFundsIndex_Member" unitRef="pure">0.0696</rr:AverageAnnualReturnYear10>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="USD">281</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member" unitRef="USD">262</rr:ExpenseExampleYear03>
  <rr:ObjectiveHeading contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;&lt;b&gt;Investment Objective(s)&lt;/b&gt;&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Fees and Expenses of the Fund&lt;/font&gt;&lt;/b&gt;</rr:ExpenseHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&lt;b&gt;Portfolio Turnover.&lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyHeading contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Principal Investment Strategies of the Fund&lt;/font&gt;&lt;/b&gt;</rr:StrategyHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in securities of issuers engaged in technology-related industries. The Fund invests predominantly in equity securities. The principal type of equity securities purchased by the Fund is common stock.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;In complying with the 80% investment requirement, the Fund may include synthetic securities that have economic characteristics similar to the Fund&amp;#8217;s direct investments that are counted toward the 80% investment requirement.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Fund may invest up to 50% of its total assets in foreign securities of issuers doing business in technology-related industries. The Fund will invest in American Depositary Receipts to gain exposure to foreign companies. American Depositary Receipts are receipts, issued by U.S. banks, for the shares of foreign corporations, held by the bank issuing the receipt. American Depositary Receipts are typically issued in registered form, denominated in U.S. dollars and designed for use in the U.S. securities markets. Purchasing American Depositary Receipts gives the Fund the ability to purchase the functional equivalent of foreign securities without going to the foreign securities markets to do so.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Fund can utilize derivative instruments, including call options and index futures. The Fund can utilize call options for hedging and investment purposes. A call option is an option contract in which the buyer has the right, but not the obligation, to buy a specified quantity of a security at a specified price within a fixed period of time. For the seller of a call option, an option contract represents an obligation to sell the underlying security at the specified price if the option is exercised by the buyer. The seller is paid a premium for taking on the risk associated with the obligation.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Index futures can be used to gain exposure to the broad market by equitizing cash and as a hedge against downside risk. A stock index futures contract is an exchange-traded contract that provides for the delivery, at a designated date, time and place, of an amount of cash equal to a specified dollar amount times the difference between the stock index value at the close of trading on the date specified in the contract and the price agreed upon in the futures contract; no physical delivery of stocks comprising the index is made. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;In selecting securities for the Fund, the portfolio managers use a research-oriented bottom-up investment approach, focusing on issuer fundamentals and growth prospects. Security selection is then further refined by valuation and timeliness analysis. In general, the Fund invests in issuers that the portfolio managers believe currently exhibit or will develop a sustainable competitive advantage, a free cash flow generating business model and strong returns on invested capital. Technology issuers able to capitalize on the key secular themes identified by the portfolio managers are emphasized.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Valuation plays a critical role in the security selection process. The primary metric used by the portfolio managers to determine a security&amp;#8217;s target valuation is cash flow. In addition to valuation analysis, the portfolio managers analyze product cycle and seasonality-driven measures to help determine the best time to purchase or sell a security.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;While the portfolio managers may invest in securities of any market capitalization, they tend to favor mid- and large-cap securities to avoid liquidity problems that can be associated with some small-cap securities.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The portfolio managers will consider selling the security of an issuer if, among other things, (1) a security&amp;#8217;s price reaches its valuation target; (2) an issuer&amp;#8217;s fundamentals deteriorate; (3) it no longer meets the investment criteria; or (4) a more attractive investment opportunity is identified.&lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Depositary Receipts Risk&lt;/i&gt;. Depositary receipts involve many of the same risks as those associated with direct investment in foreign securities. In addition, the underlying issuers of certain depositary receipts, particularly unsponsored or unregistered depositary receipts, are under no obligation to distribute shareholder communications to the holders of such receipts or to pass through to them any voting rights with respect to the deposited securities.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Derivatives Risk&lt;/i&gt;. The performance of derivative instruments is tied to the performance of an underlying currency, security, index or other instrument. In addition to risks relating to their underlying instruments, the use of derivatives may include other, possibly greater, risks. Derivatives involve costs, may be volatile, and may involve a small initial investment relative to the risk assumed. Risks associated with the use of derivatives may include counterparty, leverage, correlation, liquidity, tax, market, interest rate and management risks. Derivatives may also be more difficult to purchase, sell or value than other investments. The Fund may lose more than the cash amount invested on investments in derivatives. Investors should bear in mind that, while the Fund intends to use derivative strategies, it is not obligated to actively engage in these transactions, generally or in any particular kind of derivative, if the investment manager elects not to do so due to availability, cost, market conditions or other factors.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Foreign Securities Risk&lt;/i&gt;. The Fund&amp;#8217;s foreign investments may be affected by changes in a foreign country&amp;#8217;s exchange rates, political and social instability, changes in economic or taxation policies, difficulties when enforcing obligations, decreased liquidity, and increased volatility. Foreign companies may be subject to less regulation resulting in less publicly available information about the companies.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Management Risk&lt;/i&gt;. The investment techniques and risk analysis used by the Fund&amp;#8217;s portfolio managers may not produce the desired results.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Market Risk&lt;/i&gt;. The prices of and the income generated by the Fund&amp;#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and currency and interest rate fluctuations.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Mid-Capitalization Risk&lt;/i&gt;. Stocks of mid-sized companies tend to be more vulnerable to adverse developments in the above factors and may have little or no operating history or track record of success, and limited product lines, markets, management and financial resources. The securities of mid-sized companies may be more volatile due to less market interest and less publicly available information about the issuer. They also may be illiquid or restricted as to resale, or may trade less frequently and in smaller volumes, all of which may cause difficulty when establishing or closing a position at a desirable price.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Sector Fund Risk&lt;/i&gt;. The Fund&amp;#8217;s investments are concentrated in a comparatively narrow segment of the economy, which may make the Fund more volatile than non-concentrated funds.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Synthetic Securities Risk&lt;/i&gt;. Fluctuations in the values of synthetic securities may not correlate perfectly with the instruments they are designed to replicate. Synthetic securities may be subject to interest rate changes, market price fluctuations, counterparty risk and liquidity risk.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Technology Sector Risk&lt;/i&gt;. Many products and services offered in technology-related industries are subject to rapid obsolescence, which may lower the value of the issuers in this sector.&lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;After-tax returns 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;#8217;s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangement, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:ObjectiveHeading contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Investment Objective(s)&lt;/font&gt;&lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Fees and Expenses of the Fund &lt;/font&gt;&lt;/b&gt;</rr:ExpenseHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica;" size="2"&gt;&lt;b&gt;Portfolio Turnover.&lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyHeading contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Principal Investment Strategies of the Fund&lt;/font&gt;&lt;/b&gt;</rr:StrategyHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in securities of issuers engaged in utilities-related industries. The Fund invests predominantly in equity securities.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp; In complying with the 80% investment requirement, the Fund may include synthetic securities that have economic characteristics similar to the Fund&amp;#8217;s direct investments that are counted toward the 80% investment requirement.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Fund may invest up to 25% of its net assets in foreign securities, including &lt;font style="WHITE-SPACE: nowrap"&gt;non-U.S.&lt;/font&gt; dollar denominated securities, of issuers doing business in utilities-related industries.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;In selecting investments, the portfolio managers seek to identify issuers predominantly within the electric utility, natural gas, water and telecommunications industries. The investment team generally emphasizes issuers with solid balance sheets and operational cash flow that supports sustained or increasing dividends. Through fundamental research, financial statement analysis and multiple valuation metrics, the management team estimates a target price for each security over a two- to three-year investment horizon. The portfolio managers then construct a portfolio which they believe provides the best total return potential based on a combination of price appreciation, dividend income and a favorable risk profile.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The portfolio managers consider whether to sell a particular security when any of these factors materially change.&lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Foreign Securities Risk&lt;/i&gt;. The Fund&amp;#8217;s foreign investments may be affected by changes in a foreign country&amp;#8217;s exchange rates, political and social instability, changes in economic or taxation policies, difficulties when enforcing obligations, decreased liquidity, and increased volatility. Foreign companies may be subject to less regulation resulting in less publicly available information about the companies.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Management Risk&lt;/i&gt;. The investment techniques and risk analysis used by the Fund&amp;#8217;s portfolio managers may not produce the desired results.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Market Risk&lt;/i&gt;. The prices of and the income generated by the Fund&amp;#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and currency and interest rate fluctuations.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Sector Fund Risk&lt;/i&gt;. The Fund&amp;#8217;s investments are concentrated in a comparatively narrow segment of the economy, which may make the Fund more volatile than non-concentrated funds.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Synthetic Securities Risk&lt;/i&gt;. Fluctuations in the values of synthetic securities may not correlate perfectly with the instruments they are designed to replicate. Synthetic securities may be subject to interest rate changes, market price fluctuations, counterparty risk and liquidity risk.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Utilities Sector Risk&lt;/i&gt;. The following factors may affect the Fund&amp;#8217;s investments in the utilities sector: governmental regulation, economic factors, ability of the issuer to obtain financing, prices of natural resources and risks associated with nuclear power.&lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;As with any mutual fund investment, loss of money is a risk of investing.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;After-tax returns 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;#8217;s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangement, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt; Actual after-tax returns depend on an investor&amp;#8217;s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangement, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:ObjectiveHeading contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Investment Objective(s)&lt;/font&gt;&lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Fees and Expenses of the Fund&lt;/font&gt;&lt;/b&gt;</rr:ExpenseHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;b&gt;Portfolio Turnover.&lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyHeading contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Principal Investment Strategies of the Fund&lt;/font&gt;&lt;/b&gt;</rr:StrategyHeading>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member">2003-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.2007</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Worst Quarter&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member">2002-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;Under normal market conditions, Invesco Advisers, Inc. (the Adviser), the Fund&amp;#8217;s investment adviser, seeks to achieve the Fund&amp;#8217;s investment objective by investing in a portfolio of equity securities, consisting principally of common stocks, preferred stocks and securities convertible into common and preferred stocks. Under normal market conditions, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in common stocks at the time of investment. In complying with the 80% investment requirement, the Fund may include synthetic securities that have economic characteristics similar to the Fund&amp;#8217;s direct investments that are counted toward the 80% investment requirement. The Fund emphasizes a value style of investing seeking well-established, undervalued companies believed by the Adviser to possess the potential for capital growth and income. The Adviser will consider selling a security if it meets one or more of the following criteria: (1) the target price of the investment has been realized and the Adviser no longer considers the company undervalued, (2) a better value opportunity is identified, or (3) research shows that the company is experiencing deteriorating fundamentals beyond the Adviser&amp;#8217;s tolerable level and the trend is likely to be a long-term issue. The Fund may invest in issuers of small-, medium- or large-sized companies. The Fund may invest up to 25% of its total assets in securities of foreign issuers. The Fund may invest up to 10% of its total assets in real estate investment trusts (REITs). &lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;The Fund can utilize derivative instruments, including forward foreign currency contracts and futures contracts. The Fund can utilize forward foreign currency contracts to mitigate the risk of foreign currency exposure. A forward foreign currency contract is an agreement between parties to exchange a specified amount of currency at a specified future time at a specified rate. Forward foreign currency contracts are used to protect against uncertainty in the level of future foreign currency exchange rates. The Fund will use these contracts to hedge against adverse movements in the foreign currencies in which portfolio securities are denominated. &lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;The Fund can invest in futures contracts, including index futures, to seek exposure to certain asset classes. A futures contract is a standardized agreement between two parties to buy or sell a specific quantity of an underlying instrument at a specific price at a specific future time. The value of the futures contract tends to increase and decrease in tandem with the value of the underlying instrument. Futures contracts are bilateral agreements, with both the purchaser and the seller equally obligated to complete the transaction. Depending on the terms of the particular contract, futures contracts are settled through either physical delivery of the underlying instrument on the settlement date or by payment of a cash settlement amount on the settlement date.&lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;i&gt;Derivatives Risk.&lt;/i&gt; The performance of derivative instruments is tied to the performance of an underlying currency, security, index or other instrument. In addition to risks relating to their underlying instruments, the use of derivatives may include other, possibly greater, risks. Derivatives involve costs, may be volatile, and may involve a small initial investment relative to the risk assumed. Risks associated with the use of derivatives include counterparty, leverage, correlation, liquidity, tax, market, interest rate and management risks. Derivatives may also be more difficult to purchase, sell or value than other investments. The Fund may lose more than the cash amount invested on investments in derivatives. Investors should bear in mind that, while the Fund intends to use derivative strategies, it is not obligated to actively engage in these transactions, generally or in any particular kind of derivative, if the investment manager elects not to do so due to availability, cost, market conditions or other factors.&lt;/font&gt; &lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;i&gt;Management Risk.&lt;/i&gt; The investment techniques and risk analysis used by the Fund&amp;#8217;s portfolio managers may not produce the desired results.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;i&gt;Market Risk.&lt;/i&gt; The prices of and the income generated by the Fund&amp;#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and currency and interest rate fluctuations.&lt;/font&gt; &lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;i&gt;Small- and Medium-Sized Companies Risk.&lt;/i&gt; During an overall stock market decline, stock prices of small- or medium-sized companies often fluctuate more than stock prices of larger companies or the market averages in general. In addition, such companies typically are subject to a greater degree of change in earnings and business prospects than are larger companies and may be less liquid than larger-sized companies. In addition, small- and medium-sized companies may have more limited markets, financial resources and product lines, and may lack the depth of management of larger companies.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;i&gt;Value Investing Risk.&lt;/i&gt; A value style of investing emphasizes undervalued companies with characteristics for improved valuations. This style of investing is subject to the risk that the valuations never improve or that the returns on value equity securities are less than the returns on other styles of investing or the overall stock markets.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;i&gt;Foreign Risks.&lt;/i&gt; The risks of investing in securities of foreign issuers, including emerging market issuers, can include fluctuations in foreign currencies, foreign currency exchange controls, political and economic instability, differences in securities regulation and trading, and foreign taxation issues.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;i&gt;Risks of Investing in Real Estate Investment Trusts (reits).&lt;/i&gt; Investing in REITs makes the Fund more susceptible to risks associated with the ownership of real estate and with the real estate industry in general. In addition, REITs depend upon specialized management skills, may not be diversified, may have less trading volume, and may be subject to more abrupt or erratic price movements than the overall securities markets. REITs must comply with certain requirements of the federal income tax law to maintain their federal income tax status. Investments in REITs may involve duplication of management fees and certain other expenses.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;i&gt;Convertible Securities Risk.&lt;/i&gt; The Fund may own convertible securities, the value of which may be affected by market interest rates, the risk that the issuer will default, the value of the underlying stock or the right of the issuer to buy back the convertible securities.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;i&gt;Preferred Securities Risk.&lt;/i&gt; There are special risks associated with investing in preferred securities. Preferred securities may include provisions that permit the issuer, in its discretion, to defer or omit distributions for a certain period of time. If the Fund owns a security that is deferring or omitting its distributions, the Fund may be required to report the distribution on its tax returns, even though it may not have received this income. Further, preferred securities may lose substantial value due to the omission or deferment of dividend payments.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;i&gt;Synthetic Securities Risk.&lt;/i&gt; Fluctuations in the values of synthetic securities may not correlate perfectly with the instruments they are designed to replicate. Synthetic securities may be subject to interest rate changes, market price fluctuations, counterparty risk and liquidity risk. &lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:AverageAnnualReturnYear10 id="Item_13" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="pure">0.0661</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 id="Item_14" decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000027832_MemberC000084471_Member" unitRef="pure">0.0602</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 id="Item_15" decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000027832_MemberC000084471_Member" unitRef="pure">0.0561</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 id="Item_16" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member" unitRef="pure">0.0653</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberSAndPFiveHundredIndex_Member" unitRef="pure">0.0292</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberRussellMidcapValueIndex_Member" unitRef="pure">0.0767</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberLipperMidcapValueIndex_Member" unitRef="pure">0.0611</rr:AverageAnnualReturnYear10>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">0.0077</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="USD">246</rr:ExpenseExampleYear03>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">-0.4369</rr:AnnualReturn2008>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">-0.0799</rr:AnnualReturn2011>
  <dei:DocumentPeriodEndDate contextRef="Duration_25Sep2011_24Sep2012">2012-04-30</dei:DocumentPeriodEndDate>
  <dei:DocumentType contextRef="Duration_25Sep2011_24Sep2012">485BPOS</dei:DocumentType>
  <dei:EntityCentralIndexKey contextRef="Duration_25Sep2011_24Sep2012">0000725781</dei:EntityCentralIndexKey>
  <dei:DocumentCreationDate contextRef="Duration_25Sep2011_24Sep2012">2012-09-21</dei:DocumentCreationDate>
  <rr:RiskLoseMoney contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;As with any mutual fund investment, loss of money is a risk of investing.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;After-tax returns 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;#8217;s tax situation and may differ from those shown, and 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:PerformanceTableNarrativeTextBlock>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Actual after-tax returns depend on an investor&amp;#8217;s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangement, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:RiskLoseMoney contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;As with any mutual fund investment, loss of money is a risk of investing. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Actual after-tax returns depend on an investor&amp;#8217;s tax situation and may differ from those shown, and 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>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member">2011-12-31</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="pure">0.122</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Worst Quarter&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ObjectiveHeading contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Investment Objective(s)&lt;/font&gt;&lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Fees and Expenses of the Fund&lt;/font&gt;&lt;/b&gt;</rr:ExpenseHeading>
  <rr:StrategyHeading contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Principal Investment Strategies of the Fund&lt;/font&gt;&lt;/b&gt;</rr:StrategyHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in securities of issuers engaged in energy-related industries. The Fund invests predominantly in equity securities. The principal type of equity securities purchased by the Fund is common stock. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;In complying with the 80% investment requirement, the Fund may include synthetic securities that have economic characteristics similar to the Fund&amp;#8217;s direct investments that are counted toward the 80% investment requirement. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Fund may invest up to 100% of its net assets in foreign securities of issuers doing business in energy-related industries. The Fund invests in issuers of all market capitalizations. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Generally, the Fund&amp;#8217;s investments are divided among the four main energy subsectors: (1) major oil issuers; (2) energy services issuers; (3) oil and gas exploration/production issuers; and (4) natural gas and logistic pipeline issuers. Portfolio weightings among these and other subsectors will be adjusted according to current economic conditions. In selecting securities for the Fund, the portfolio managers use a research-oriented,  bottom-up investment approach, focusing on reasonably priced energy issuers with above average production volume growth, as well as earnings, cash flow and asset value growth potential independent of commodity pricing. The investment strategy focuses on identifying issuers with the ability to increase production while controlling costs by implementing new technologies, locating new discoveries (such as oil, natural gas, and/or coal) or boosting production volumes. In general, the Fund emphasizes issuers that the portfolio managers believe are strongly managed and will generate above average long-term capital appreciation.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Fund can utilize derivative instruments, including call options. The Fund can utilize call options for hedging and investment purposes. A call option is an option contract in which the buyer has the right, but not the obligation, to buy a specified quantity of a security at a specified price within a fixed period of time. For the seller of a call option, an option contract represents an obligation to sell the underlying security at the specified price if the option is exercised by the buyer. The seller is paid a premium for taking on the risk associated with the obligation. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt; &amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The portfolio managers will consider selling a security of an issuer if, among other things, (1) a security reaches its price target; (2) a change in fundamentals occur&amp;#8212;either issuer specific or industry wide; (3) a change in management occurs; or (4) a more attractive investment opportunity is identified.&lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;After-tax returns 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;#8217;s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangement, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;As with any mutual fund investment, loss of money is a risk of investing. &lt;/font&gt;</rr:RiskLoseMoney>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Actual after-tax returns depend on an investor&amp;#8217;s tax situation and may differ from those shown, and after-tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangement, such as 401(k) plans or individual retirement accounts.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:RiskNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are: &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Derivatives Risk&lt;/i&gt;. The performance of derivative instruments is tied to the performance of an underlying currency, security, index or other instrument. In addition to risks relating to their underlying instruments, the use of derivatives may include other, possibly greater, risks. Derivatives involve costs, may be volatile, and may involve a small initial investment relative to the risk assumed. Risks associated with the use of derivatives may include counterparty, leverage, correlation, liquidity, tax, market, interest rate and management risks. Derivatives may also be more difficult to purchase, sell or value than other investments. The Fund may lose more than the cash amount invested on investments in derivatives. Investors should bear in mind that, while the Fund intends to use derivative strategies, it is not obligated to actively engage in these transactions, generally or in any particular kind of derivative, if the investment manager elects not to do so due to availability, cost, market conditions or other factors. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Energy Industry Sector Risk&lt;/i&gt;. The businesses in which the Fund invests may be adversely affected by foreign, federal or state regulations governing energy production, distribution and sale as well as supply-and-demand for energy resources. Although individual security selection drives the performance of the Fund, short-term fluctuations in energy prices may cause price fluctuations in its shares.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Foreign Securities Risk&lt;/i&gt;. The Fund&amp;#8217;s foreign investments may be affected by changes in a foreign country&amp;#8217;s exchange rates, political and social instability, changes in economic or taxation policies, difficulties when enforcing obligations, decreased liquidity, and increased volatility.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;Foreign companies may be subject to less regulation resulting in less publicly available information about the companies.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Management Risk&lt;/i&gt;. The investment techniques and risk analysis used by the Fund&amp;#8217;s portfolio managers may not produce the desired results.&lt;/font&gt; &lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Market Risk&lt;/i&gt;. The prices of and the income generated by the Fund&amp;#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and currency and interest rate fluctuations.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Sector Fund Risk&lt;/i&gt;. The Fund&amp;#8217;s investments are concentrated in a comparatively narrow segment of the economy, which may make the Fund more volatile than non-concentrated funds.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Small- and Mid-Capitalization Risks&lt;/i&gt;. Stocks of small and mid-sized companies tend to be more vulnerable to adverse developments and may have little or no operating history or track record of success, and limited product lines, markets, management and financial resources. The securities of small and mid-sized companies may be more volatile due to less market interest and less publicly available information about the issuer. They also may be illiquid or restricted as to resale, or may trade less frequently and in smaller volumes, all of which may cause difficulty when establishing or closing a position at a desirable price.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Synthetic Securities Risk&lt;/i&gt;. Fluctuations in the values of synthetic securities may not correlate perfectly with the instruments they are designed to replicate. Synthetic securities may be subject to interest rate changes, market price fluctuations, counterparty risk and liquidity risk.&lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member">2008-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">0.2715</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Worst Quarter&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member">2008-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0.1221</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Worst Quarter&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member">2008-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ObjectiveHeading contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Investment Objective(s)&lt;/font&gt;&lt;/b&gt;</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Fees and Expenses of the Fund&lt;/font&gt;&lt;/b&gt;</rr:ExpenseHeading>
  <rr:StrategyHeading contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Principal Investment Strategies of the Fund&lt;/font&gt;&lt;/b&gt;</rr:StrategyHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;Invesco Advisers, Inc. (the Adviser), the Fund&amp;#8217;s investment adviser, seeks to achieve the Fund&amp;#8217;s investment objective by investing predominantly in a portfolio of equity securities of small- to medium-sized U.S. corporations. The Adviser seeks attractively valued companies experiencing a change that could have a positive impact on a company&amp;#8217;s outlook. The Adviser emphasizes a value style of investing, seeking securities of companies that the Adviser believes are undervalued. The Adviser will consider selling a security if it reaches the Adviser&amp;#8217;s estimate of fair value or if a more attractive investment opportunity is identified.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Under normal market conditions, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in securities of U.S. issuers at the time of investment. In complying with the 80% investment requirement, the Fund may include synthetic securities that have economic characteristics similar to the Fund&amp;#8217;s direct investments that are counted toward the 80% investment requirement.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Under normal market conditions, the Fund invests at least 65% of its total assets in equity securities of small- to medium-sized companies. Under current market conditions, the Adviser defines small-and medium-sized corporations by reference to those with market capitalizations up to the largest companies represented in the Russell Midcap&lt;sup style="FONT-SIZE: 85%; VERTICAL-ALIGN: text-top"&gt;&amp;#174;&lt;/sup&gt; Index, a medium-sized capitalization company index which consists of companies with capitalizations up to approximately $23 billion as of April 30, 2012. The Fund invests in equity securities, which are common stocks and preferred stocks, convertible securities, and equity-linked securities to purchase common stocks and other equity interests, such as partnership and trust interests.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Fund may invest up to 20% of its total assets in securities of foreign issuers and may invest up to 20% of its total assets in real estate investment trusts (REITs).  &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Fund can also utilize derivative instruments, including forward foreign currency contracts, futures contracts and options. The Fund can utilize forward foreign currency contracts to mitigate the risk of foreign currency exposure. A forward foreign currency contract is an agreement between parties to exchange a specified amount of currency at a specified future time at a specified rate. Forward foreign currency contracts are used to protect against uncertainty in the level of future foreign currency exchange rates. The Fund will use these contracts to hedge against adverse movements in the foreign currencies in which portfolio securities are denominated.  &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Fund can invest in futures contracts, including index futures, to seek exposure to certain asset classes. A futures contract is a standardized agreement between two parties to buy or sell a specific quantity of an underlying instrument at a specific price at a specific future time. The value of the futures contract tends to increase and decrease in tandem with the value of the underlying instrument. Futures contracts are bilateral agreements, with both the purchaser and the seller equally obligated to complete the transaction. Depending on the terms of the particular contract, futures contracts are settled through either physical delivery of the underlying instrument on the settlement date or by payment of a cash settlement amount on the settlement date.  &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The Fund can also invest in options to mitigate risk. An option is a derivative financial instrument that specifies a contract between two parties for a future transaction on an asset at a reference price. The buyer of the option gains the right, but not the obligation, to engage in that transaction, while the seller incurs the corresponding obligation to fulfill the transaction. The price of an option derives from the difference between the reference price and the value of the underlying asset (commonly a stock, a bond, a currency or a futures contract) plus a premium based on the time remaining until the expiration of the option. Other types of options exist, and options can in principle be created for any type of valuable asset.&lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Risks of Investing in Value Stocks.&lt;/i&gt; Value stocks can react differently to issuer, political, market and economic developments than the market as a whole and other types of stocks. Value stocks can continue to be undervalued for long periods of time and may not ever realize their full value.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Foreign Risks.&lt;/i&gt; The risks of investing in securities of foreign issuers, including emerging market issuers, can include fluctuations in foreign currencies, foreign currency exchange controls, political and economic instability, differences in securities regulation and trading, and foreign taxation issues. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Risks of Investing in REITs.&lt;/i&gt; Investing in REITs makes the Fund more susceptible to risks associated with the ownership of real estate and with the real estate industry in general and may involve duplication of management fees and other expenses. REITs may be less diversified than other pools of securities, may have lower trading volumes and may be subject to more abrupt or erratic price movements than the overall securities markets. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Derivatives Risk. &lt;/i&gt;The performance of derivative instruments is tied to the performance of an underlying currency, security, index or other instrument. In addition to risks relating to their underlying instruments, the use of derivatives may include other, possibly greater, risks. Derivatives involve costs, may be volatile, and may involve a small initial investment relative to the risk assumed. Risks associated with the use of derivatives include counterparty, leverage, correlation, liquidity, tax, market, interest rate and management risks. Derivatives may also be more difficult to purchase, sell or value than other investments. The Fund may lose more than the cash amount invested on investments in derivatives. Investors should bear in mind that, while the Fund intends to use derivative strategies, it is not obligated to actively engage in these transactions, generally or in any particular kind of derivative, if the investment manager elects not to do so due to availability, cost, market conditions or other factors.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Convertible Securities Risk. &lt;/i&gt;The Fund may own convertible securities, the value of which may be affected by market interest rates, the risk that the issuer will default, the value of the underlying stock or the right of the issuer to buy back the convertible securities.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Equity-Linked Securities Risk. &lt;/i&gt;Investments in equity-linked securities may subject the Fund to risks if the underlying equity security, reference rate or index underperforms or if the issuer defaults on the payment of the dividend or the common stock at maturity. Additionally, the trading market for particular equity-linked securities may be less liquid, making it difficult for the Fund to dispose of a particular security and to obtain market quotations for valuing the Fund&amp;#8217;s portfolio.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Management Risk. &lt;/i&gt;The investment techniques and risk analysis used by the Fund&amp;#8217;s portfolio managers may not produce the desired results.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Market Risk. &lt;/i&gt;The prices of and the income generated by the Fund&amp;#8217;s securities may decline in response to, among other things, investor sentiment, general economic and market conditions, regional or global instability, and currency and interest rate fluctuations.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Small- and Mid-Capitalization Risks. &lt;/i&gt;Stocks of small and mid-sized companies tend to be more vulnerable to adverse developments in the above factors and may have little or no operating history or track record of success, and limited product lines, markets, management and financial resources. The securities of small and mid-sized companies may be more volatile due to less market interest and less publicly available information about the issuer. They also may be illiquid or restricted as to resale, or may trade less frequently and in smaller volumes, all of which may cause difficulty when establishing or closing a position at a desirable price.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Synthetic Securities Risk. &lt;/i&gt;Fluctuations in the values of synthetic securities may not correlate perfectly with the instruments they are designed to replicate. Synthetic securities may be subject to interest rate changes, market price fluctuations, counterparty risk and liquidity risk.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&lt;i&gt;Preferred Securities Risk. &lt;/i&gt;There are special risks associated with investing in preferred securities. Preferred securities may include provisions that permit the issuer, in its discretion, to defer or omit distributions for a certain period of time. If the Fund owns a security that is deferring or omitting its distributions, the Fund may be required to report the distribution on its tax returns, even though it may not have received this income. Further, preferred securities may lose substantial value due to the omission or deferment of dividend payments.&lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:PerformanceTableNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;After-tax returns 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;#8217;s tax situation and may differ from those shown, and 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:PerformanceTableNarrativeTextBlock>
  <rr:RiskLoseMoney contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;As with any mutual fund investment, loss of money is a risk of investing.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:PerformanceTableHeading contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Average Annual Total Returns&lt;/b&gt; (for the periods ended December 31, 2011)&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Actual after-tax returns depend on an investor's tax situation and may differ from those shown, and 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>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member">2011-12-31</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="pure">0.1715</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Worst Quarter &lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member">2011-09-30</rr:BarChartLowestQuarterlyReturnDate>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="pure">0.0111</rr:AnnualReturn2011>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="pure">0.0039</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member" unitRef="pure">0.0039</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_17" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="pure">0.0005</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_18" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member" unitRef="pure">0.0002</rr:OtherExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="USD">555</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member" unitRef="USD">518</rr:ExpenseExampleYear10>
  <rr:AverageAnnualReturnYear01 id="Item_19" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="pure">-0.0146</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_20" decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000027834_MemberC000084483_Member" unitRef="pure">-0.0173</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_21" decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000027834_MemberC000084483_Member" unitRef="pure">-0.0059</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_22" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member" unitRef="pure">-0.0197</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberSAndPFiveHundredIndex_Member" unitRef="pure">0.0209</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberRussellTenHundredValueIndex_Member" unitRef="pure">0.0039</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberLipperLargecapValueIndex_Member" unitRef="pure">-0.0217</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear05 id="Item_23" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="pure">-0.0146</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 id="Item_24" decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000027834_MemberC000084483_Member" unitRef="pure">-0.0194</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 id="Item_25" decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000027834_MemberC000084483_Member" unitRef="pure">-0.0125</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 id="Item_26" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000120720_Member" unitRef="pure">-0.016</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberSAndPFiveHundredIndex_Member" unitRef="pure">-0.0025</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberRussellTenHundredValueIndex_Member" unitRef="pure">-0.0264</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberLipperLargecapValueIndex_Member" unitRef="pure">-0.0226</rr:AverageAnnualReturnYear05>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.0069</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.002</rr:OtherExpensesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="pure">0.0075</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_27" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0.0011</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_28" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="pure">0.001</rr:OtherExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="USD">1096</rr:ExpenseExampleYear10>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="pure">0.0072</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member" unitRef="pure">0.0072</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_29" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="pure">0.0016</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_30" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member" unitRef="pure">0.001</rr:OtherExpensesOverAssets>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.0457</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.0256</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.1071</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.0809</rr:AnnualReturn2007>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.5918</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.2171</rr:AnnualReturn2010>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">-0.0261</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000000160_MemberC000023158_Member" unitRef="pure">-0.0261</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000000160_MemberC000023158_Member" unitRef="pure">-0.017</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberSAndPFiveHundredIndex_Member" unitRef="pure">0.0209</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberBofaMerrillLynchOneHundredTechnologyIndex_Member" unitRef="pure">-0.1227</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberLipperScienceAndTechnologyFundsIndex_Member" unitRef="pure">-0.0581</rr:AverageAnnualReturnYear01>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="USD">1061</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="USD">1049</rr:ExpenseExampleYear10>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">0.0262</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000000160_MemberC000023158_Member" unitRef="pure">0.0262</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000000160_MemberC000023158_Member" unitRef="pure">0.0225</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberSAndPFiveHundredIndex_Member" unitRef="pure">-0.0025</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberBofaMerrillLynchOneHundredTechnologyIndex_Member" unitRef="pure">-0.001</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberLipperScienceAndTechnologyFundsIndex_Member" unitRef="pure">0.0273</rr:AverageAnnualReturnYear05>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0.2573</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0.205</rr:AnnualReturn2007>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0.1469</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0.0644</rr:AnnualReturn2010>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0.1671</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000000161_MemberC000029688_Member" unitRef="pure">0.1619</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000000161_MemberC000029688_Member" unitRef="pure">0.1147</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_31" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="pure">0.1615</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberSAndPFiveHundredIndex_Member" unitRef="pure">0.0209</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberSAndPUtilitiesIndex_Member" unitRef="pure">0.1991</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberLipperUtilityFundsIndex_Member" unitRef="pure">0.1243</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0.0668</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000000161_MemberC000029688_Member" unitRef="pure">0.0624</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000000161_MemberC000029688_Member" unitRef="pure">0.0574</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception id="Item_32" xsi:nil="true" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="pure" />
  <rr:AverageAnnualReturnSinceInception xsi:nil="true" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberLipperUtilityFundsIndex_Member" unitRef="pure" />
  <rr:AverageAnnualReturnSinceInception xsi:nil="true" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberSAndPUtilitiesIndex_Member" unitRef="pure" />
  <rr:AverageAnnualReturnSinceInception xsi:nil="true" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberSAndPFiveHundredIndex_Member" unitRef="pure" />
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund&amp;#8217;s investment objective is long-term growth of capital.&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="USD">1084</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member" unitRef="USD">1014</rr:ExpenseExampleYear10>
  <rr:RiskHeading contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Principal Risks of Investing in the Fund&lt;/font&gt;&lt;/b&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Performance Information&lt;/font&gt;&lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt; The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund&amp;#8217;s performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to the Fund. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available on the Fund&amp;#8217;s Web site at www.invesco.com/us.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Annual Total Returns&lt;/b&gt;&lt;/font&gt;</rr:BarChartHeading>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund&amp;#8217;s investment objective is long-term growth of capital and,&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_Member" unitRef="pure">0.48</rr:PortfolioTurnoverRate>
  <rr:RiskHeading contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Principal Risks of Investing in the Fund&lt;/font&gt;&lt;/b&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Performance Information&lt;/font&gt;&lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.&lt;/font&gt;</rr:RiskNotInsuredDepositoryInstitution>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund&amp;#8217;s performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to the Fund. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available on the Fund&amp;#8217;s Web site at www.invesco.com/us.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Annual Total Returns&lt;/font&gt;&lt;/b&gt;</rr:BarChartHeading>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of its future performance. &lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;After-tax returns 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:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedInvescoComstockFund column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:YearToDateReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Class R5 shares year-to-date&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Best Quarter&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:RiskHeading contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Principal Risks of Investing in the Fund&lt;/font&gt;&lt;/b&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Performance Information&lt;/font&gt;&lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:BarChartHeading contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Annual Total Returns&lt;/font&gt;&lt;/b&gt;</rr:BarChartHeading>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000160_MemberC000023158_Member" unitRef="pure">-0.2985</rr:BarChartLowestQuarterlyReturn>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;The Fund&amp;#8217;s investment objective is to seek capital growth and income through investments in equity securities, including common stocks, preferred stocks and securities convertible into common and preferred stocks.&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">0.0306</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000000161_MemberC000029688_Member" unitRef="pure">0.0263</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000000161_MemberC000029688_Member" unitRef="pure">0.0256</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 id="Item_33" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000120718_Member" unitRef="pure">0.0255</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberSAndPFiveHundredIndex_Member" unitRef="pure">-0.0025</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberSAndPUtilitiesIndex_Member" unitRef="pure">0.0371</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberLipperUtilityFundsIndex_Member" unitRef="pure">0.0289</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear01 id="Item_34" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="pure">0.0111</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_35" decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000027832_MemberC000084471_Member" unitRef="pure">0.01</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_36" decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000027832_MemberC000084471_Member" unitRef="pure">0.0087</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 id="Item_37" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member" unitRef="pure">0.006</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberSAndPFiveHundredIndex_Member" unitRef="pure">0.0209</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberRussellMidcapValueIndex_Member" unitRef="pure">-0.0138</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberLipperMidcapValueIndex_Member" unitRef="pure">-0.0451</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear05 id="Item_38" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="pure">0.0175</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 id="Item_39" decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000027832_MemberC000084471_Member" unitRef="pure">0.0077</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 id="Item_40" decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000027832_MemberC000084471_Member" unitRef="pure">0.0111</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 id="Item_41" decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000120719_Member" unitRef="pure">0.016</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberSAndPFiveHundredIndex_Member" unitRef="pure">-0.0025</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberRussellMidcapValueIndex_Member" unitRef="pure">0.0004</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberLipperMidcapValueIndex_Member" unitRef="pure">0.0028</rr:AverageAnnualReturnYear05>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">0.0061</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">0</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">0.0016</rr:OtherExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="USD">954</rr:ExpenseExampleYear10>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">-0.0799</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000000155_MemberC000023157_Member" unitRef="pure">-0.0799</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000000155_MemberC000023157_Member" unitRef="pure">-0.0519</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberSAndPFiveHundredIndex_Member" unitRef="pure">0.0209</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberMsciWorldEnergyIndex_Member" unitRef="pure">0.0017</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberLipperNaturalResourcesFundsIndex_Member" unitRef="pure">-0.0807</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">0.0507</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000000155_MemberC000023157_Member" unitRef="pure">0.0438</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000000155_MemberC000023157_Member" unitRef="pure">0.0441</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberSAndPFiveHundredIndex_Member" unitRef="pure">-0.0025</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberMsciWorldEnergyIndex_Member" unitRef="pure">0.0261</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberLipperNaturalResourcesFundsIndex_Member" unitRef="pure">0.0157</rr:AverageAnnualReturnYear05>
  <rr:ObjectiveSecondaryTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;secondarily, current income.&lt;/font&gt;</rr:ObjectiveSecondaryTextBlock>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">0.036</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributions_MemberS000000155_MemberC000023157_Member" unitRef="pure">0.0255</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_25Sep2011_24Sep2012AfterTaxesOnDistributionsAndSales_MemberS000000155_MemberC000023157_Member" unitRef="pure">0.0297</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberSAndPFiveHundredIndex_Member" unitRef="pure">0.0184</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberMsciWorldEnergyIndex_Member" unitRef="pure">0.0288</rr:AverageAnnualReturnSinceInception>
  <rr:AverageAnnualReturnSinceInception decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberLipperNaturalResourcesFundsIndex_Member" unitRef="pure">0.0128</rr:AverageAnnualReturnSinceInception>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">0.4579</rr:AnnualReturn2007>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">0.4477</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">0.1712</rr:AnnualReturn2010>
  <rr:ProspectusDate contextRef="Duration_25Sep2011_24Sep2012">2012-09-24</rr:ProspectusDate>
  <dei:AmendmentFlag contextRef="Duration_25Sep2011_24Sep2012">false</dei:AmendmentFlag>
  <dei:DocumentEffectiveDate contextRef="Duration_25Sep2011_24Sep2012">2012-09-24</dei:DocumentEffectiveDate>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_Member" unitRef="pure">0.14</rr:PortfolioTurnoverRate>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.&lt;/font&gt;</rr:RiskNotInsuredDepositoryInstitution>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of its future performance.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;After-tax returns 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:PerformanceTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedInvescoComstockFund column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_Member" unitRef="pure">0.17</rr:PortfolioTurnoverRate>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.&lt;/font&gt;</rr:RiskNotInsuredDepositoryInstitution>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;The Fund&amp;#8217;s (and the predecessor fund&amp;#8217;s) past performance (before and after taxes) is not necessarily an indication of its future performance.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;After-tax returns 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:YearToDateReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Class R5 shares year-to-date&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Best Quarter&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027834_MemberC000084483_Member" unitRef="pure">-0.1711</rr:BarChartLowestQuarterlyReturn>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedINVESCOUtilitiesFund column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund&amp;#8217;s investment objective is long-term growth of capital.&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;b&gt;Portfolio Turnover.&lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:RiskHeading contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Principal Risks of Investing in the Fund&lt;/font&gt;&lt;/b&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Performance Information&lt;/font&gt;&lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund&amp;#8217;s performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to the Fund. The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of its future performance. Updated performance information is available on the Fund&amp;#8217;s Web site at www.invesco.com/us.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Annual Total Returns&lt;/b&gt;&lt;/font&gt;</rr:BarChartHeading>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_Member" unitRef="pure">0.61</rr:PortfolioTurnoverRate>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.&lt;/font&gt;</rr:RiskNotInsuredDepositoryInstitution>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund&amp;#8217;s past performance (before and after taxes) is not necessarily an indication of its future performance. &lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;After-tax returns 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:PerformanceTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedINVESCOUtilitiesFund column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:YearToDateReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Class R5 shares year-to-date&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedINVESCOTechnologyFund column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Best Quarter&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000155_MemberC000023157_Member" unitRef="pure">-0.3503</rr:BarChartLowestQuarterlyReturn>
  <rr:YearToDateReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Class R5 shares year-to-date&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:PerformanceTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedINVESCOTechnologyFund column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Best Quarter&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000000161_MemberC000029688_Member" unitRef="pure">-0.2022</rr:BarChartLowestQuarterlyReturn>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedINVESCOEnergyFund column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund's investment objective is to seek to provide a high total return by investing in equity securities of small- to medium-sized corporations.&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;&lt;b&gt;Portfolio Turnover.&lt;/b&gt;&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:RiskHeading contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Principal Risks of Investing in the Fund&lt;/font&gt;&lt;/b&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;b&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; COLOR: #1e1c77" size="2"&gt;Performance Information&lt;/font&gt;&lt;/b&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund&amp;#8217;s and Van Kampen American Value Fund&amp;#8217;s (the predecessor fund) performance to that of a broad-based securities market benchmark, style-specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. The Fund&amp;#8217;s (and the predecessor fund&amp;#8217;s) past performance (before and after taxes) is not necessarily an indication of its future performance.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;The returns for Class R5 shown prior to June 1, 2010 are those of the Class A shares of the predecessor fund. Class R6 shares of the Fund have less than a calendar year of performance; therefore, the returns shown are those of the Fund&amp;#8217;s (and the predecessor Fund&amp;#8217;s) Class A shares, which are not offered in this prospectus. Class R5 and Class R6 shares would have different returns from the predecessor fund because, although the shares are invested in the same portfolio of securities, Class R5 and Class R6 shares have different expenses. The predecessor fund was advised by Van Kampen Asset Management.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;Updated performance information is available on the Fund&amp;#8217;s Web site at www.invesco.com/us.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;&lt;b&gt;Annual Total Returns&lt;/b&gt;&lt;/font&gt;</rr:BarChartHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027834_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;The bar chart and performance table provide an indication of the risks of investing in the Fund. The bar chart shows changes in the performance of the Fund from year to year as of December 31. The performance table compares the Fund&amp;#8217;s and Van Kampen Comstock Fund&amp;#8217;s (the predecessor fund) performance to that of a broad-based securities market benchmark, a style specific benchmark and a peer group benchmark comprised of funds with investment objectives and strategies similar to those of the Fund. The Fund&amp;#8217;s (and the predecessor fund&amp;#8217;s) past performance (before and after taxes) is not necessarily an indication of its future performance.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;The returns for Class R5 shown prior to June 1, 2010 are those of the Class A shares of the predecessor fund. Class R6 shares of the Fund have less than a calendar year of performance; therefore, the returns shown are those of the Fund&amp;#8217;s (and the predecessor Fund&amp;#8217;s) Class A shares, which are not offered in this prospectus. Class R5 and Class R6 shares would have different returns from the predecessor fund because, although the shares are invested in the same portfolio of securities, Class R5 and Class R6 shares have different expenses. The predecessor fund was advised by Van Kampen Asset Management.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2" &gt;Updated performance information is available on the Fund&amp;#8217;s Web site at www.invesco.com/us.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_Member" unitRef="pure">0.3</rr:PortfolioTurnoverRate>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.&lt;/font&gt;</rr:RiskNotInsuredDepositoryInstitution>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund's (and the predecessor fund's) past performance (before and after taxes) is not necessarily an indication of its future performance.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;After-tax returns 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:YearToDateReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Class R5 shares year-to-date &lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; FONT-SIZE: 8pt;"&gt;Best Quarter &lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_25Sep2011_24Sep2012S000027832_MemberC000084471_Member" unitRef="pure">-0.1965</rr:BarChartLowestQuarterlyReturn>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleExpenseExampleTransposedInvescoAmericanValueFund column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000027832_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedInvescoAmericanValueFund column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;div style="display:none"&gt;~ http://www.invesco.com/role/ScheduleAverageAnnualTotalReturnsTransposedINVESCOEnergyFund column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:StrategyPortfolioConcentration contextRef="Duration_25Sep2011_24Sep2012S000000155_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in securities of issuers engaged in energy-related industries.&lt;/font&gt;</rr:StrategyPortfolioConcentration>
  <rr:StrategyPortfolioConcentration contextRef="Duration_25Sep2011_24Sep2012S000000160_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in securities of issuers engaged in technology-related industries.&lt;/font&gt;</rr:StrategyPortfolioConcentration>
  <rr:StrategyPortfolioConcentration contextRef="Duration_25Sep2011_24Sep2012S000000161_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica" size="2"&gt;The Fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in securities of issuers engaged in utilities-related industries.&lt;/font&gt;</rr:StrategyPortfolioConcentration>
  <link:footnoteLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <link:loc xlink:type="locator" xlink:href="#Item_2" 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">"Other Expenses" and "Total Annual Fund Operating Expenses" for Class R6 shares are based on estimated amounts for the current fiscal year.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="ExpensesOverAssets" xlink:to="footnote_ExpensesOverAssets" />
    <link:loc xlink:type="locator" xlink:href="#Item_3" xlink:label="Item_3_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_3_lbl" xlink:to="footnote_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_8" xlink:label="Item_8_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_8_lbl" xlink:to="footnote_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <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_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_17" xlink:label="Item_17_lbl" />
    <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_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_ExpensesOverAssets" 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_ExpensesOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_4" xlink:label="AverageAnnualReturnYear10" />
    <link:footnote xlink:type="resource" xlink:label="footnote_AverageAnnualReturnYear10" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_AverageAnnualReturnYear10">Class R5 and Class R6 shares' performance shown prior to the inception date is that of the fund's and the predecessor fund's Class A shares and includes the 12b-1 fees applicable to Class A shares. The inception date of the predecessor fund's Class A shares is October 7, 1968.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="AverageAnnualReturnYear10" xlink:to="footnote_AverageAnnualReturnYear10" />
    <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_AverageAnnualReturnYear10" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_6" xlink:label="Item_6_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_6_lbl" xlink:to="footnote_AverageAnnualReturnYear10" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_7" xlink:label="Item_7_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_7_lbl" xlink:to="footnote_AverageAnnualReturnYear10" 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_AverageAnnualReturnYear10" 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_AverageAnnualReturnYear10" 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_AverageAnnualReturnYear10" 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_AverageAnnualReturnYear10" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_23" xlink:label="Item_23_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_23_lbl" xlink:to="footnote_AverageAnnualReturnYear10" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_24" xlink:label="Item_24_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_24_lbl" xlink:to="footnote_AverageAnnualReturnYear10" use="optional" priority="0" order="1.0" />
    <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_AverageAnnualReturnYear10" 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_AverageAnnualReturnYear10" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_10" xlink:label="ExpensesOverAssets_2" />
    <link:footnote xlink:type="resource" xlink:label="footnote_ExpensesOverAssets_2" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_ExpensesOverAssets_2">   "Other Expenses" and "Total Annual Fund Operating Expenses" for Class R6 shares are based on estimated amounts for the current fiscal year.    </link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="ExpensesOverAssets_2" xlink:to="footnote_ExpensesOverAssets_2" />
    <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_ExpensesOverAssets_2" 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_ExpensesOverAssets_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_30" xlink:label="Item_30_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_30_lbl" xlink:to="footnote_ExpensesOverAssets_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_13" xlink:label="AverageAnnualReturnYear10_2" />
    <link:footnote xlink:type="resource" xlink:label="footnote_AverageAnnualReturnYear10_2" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_AverageAnnualReturnYear10_2">Class R5 and Class R6 shares' performance shown prior to the inception date is that of the fund's and the predecessor fund's Class A shares and includes the 12b-1 fees applicable to Class A shares. The inception date of the predecessor fund's Class A shares is October 18, 1993.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="AverageAnnualReturnYear10_2" xlink:to="footnote_AverageAnnualReturnYear10_2" />
    <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_AverageAnnualReturnYear10_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_15" xlink:label="Item_15_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_15_lbl" xlink:to="footnote_AverageAnnualReturnYear10_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_16" xlink:label="Item_16_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_16_lbl" xlink:to="footnote_AverageAnnualReturnYear10_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_34" xlink:label="Item_34_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_34_lbl" xlink:to="footnote_AverageAnnualReturnYear10_2" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_35" xlink:label="Item_35_lbl" />
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    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_41_lbl" xlink:to="footnote_AverageAnnualReturnYear10_2" use="optional" priority="0" order="1.0" />
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