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        <xbrldi:explicitMember dimension="dei:LegalEntityAxis">jhss1:S000000648Member</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">jhss1:ProspectusClassROneRThreeRFourRFiveSharesMember</xbrldi:explicitMember>
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        <xbrldi:explicitMember dimension="rr:ProspectusShareClassAxis">jhss1:C000001867Member</xbrldi:explicitMember>
      </segment>
    </entity>
    <period>
      <startDate>2011-10-02</startDate>
      <endDate>2012-10-01</endDate>
    </period>
  </context>
  <context id="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member">
    <entity>
      <identifier scheme="http://www.sec.gov/CIK">0000792858</identifier>
      <segment>
        <xbrldi:explicitMember dimension="dei:LegalEntityAxis">jhss1:S000000648Member</xbrldi:explicitMember>
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      <startDate>2011-10-02</startDate>
      <endDate>2012-10-01</endDate>
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  <context id="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member">
    <entity>
      <identifier scheme="http://www.sec.gov/CIK">0000792858</identifier>
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        <xbrldi:explicitMember dimension="dei:LegalEntityAxis">jhss1:S000000648Member</xbrldi:explicitMember>
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      <startDate>2011-10-02</startDate>
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  <context id="Duration_02Oct2011_01Oct2012S000000648_MemberC000113489_MemberProspectusClassROneRThreeRFourRFiveShares_MemberBeforeTax_Member">
    <entity>
      <identifier scheme="http://www.sec.gov/CIK">0000792858</identifier>
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        <xbrldi:explicitMember dimension="dei:LegalEntityAxis">jhss1:S000000648Member</xbrldi:explicitMember>
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        <xbrldi:explicitMember dimension="rr:ProspectusShareClassAxis">jhss1:C000113489Member</xbrldi:explicitMember>
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      <startDate>2011-10-02</startDate>
      <endDate>2012-10-01</endDate>
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  <context id="Duration_02Oct2011_01Oct2012S000000648_MemberC000078711_MemberProspectusClassROneRThreeRFourRFiveShares_MemberBeforeTax_Member">
    <entity>
      <identifier scheme="http://www.sec.gov/CIK">0000792858</identifier>
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        <xbrldi:explicitMember dimension="dei:LegalEntityAxis">jhss1:S000000648Member</xbrldi:explicitMember>
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    <period>
      <startDate>2011-10-02</startDate>
      <endDate>2012-10-01</endDate>
    </period>
  </context>
  <context id="Duration_02Oct2011_01Oct2012S000000648_MemberC000078712_MemberProspectusClassROneRThreeRFourRFiveShares_MemberBeforeTax_Member">
    <entity>
      <identifier scheme="http://www.sec.gov/CIK">0000792858</identifier>
      <segment>
        <xbrldi:explicitMember dimension="dei:LegalEntityAxis">jhss1:S000000648Member</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">jhss1:ProspectusClassROneRThreeRFourRFiveSharesMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="rr:PerformanceMeasureAxis">jhss1:BeforeTaxMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="rr:ProspectusShareClassAxis">jhss1:C000078712Member</xbrldi:explicitMember>
      </segment>
    </entity>
    <period>
      <startDate>2011-10-02</startDate>
      <endDate>2012-10-01</endDate>
    </period>
  </context>
  <context id="Duration_02Oct2011_01Oct2012S000000648_MemberC000078713_MemberProspectusClassROneRThreeRFourRFiveShares_MemberBeforeTax_Member">
    <entity>
      <identifier scheme="http://www.sec.gov/CIK">0000792858</identifier>
      <segment>
        <xbrldi:explicitMember dimension="dei:LegalEntityAxis">jhss1:S000000648Member</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">jhss1:ProspectusClassROneRThreeRFourRFiveSharesMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="rr:PerformanceMeasureAxis">jhss1:BeforeTaxMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="rr:ProspectusShareClassAxis">jhss1:C000078713Member</xbrldi:explicitMember>
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    <period>
      <startDate>2011-10-02</startDate>
      <endDate>2012-10-01</endDate>
    </period>
  </context>
  <context id="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_MemberBarclaysCapitalUS_Member">
    <entity>
      <identifier scheme="http://www.sec.gov/CIK">0000792858</identifier>
      <segment>
        <xbrldi:explicitMember dimension="dei:LegalEntityAxis">jhss1:S000000648Member</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="dei:DocumentInformationDocumentAxis">jhss1:ProspectusClassROneRThreeRFourRFiveSharesMember</xbrldi:explicitMember>
        <xbrldi:explicitMember dimension="rr:PerformanceMeasureAxis">jhss1:BarclaysCapitalUSMember</xbrldi:explicitMember>
      </segment>
    </entity>
    <period>
      <startDate>2011-10-02</startDate>
      <endDate>2012-10-01</endDate>
    </period>
  </context>
  <unit id="pure">
    <measure>pure</measure>
  </unit>
  <unit id="USD">
    <measure>iso4217:USD</measure>
  </unit>
  <rr:BarChartYearToDateReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
  <rr:BarChartYearToDateReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
  <rr:BarChartYearToDateReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
  <rr:BarChartYearToDateReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleShareholderFeesIncomeFund column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleShareholderFeesIncomeFundClassI column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleShareholderFeesIncomeFundClassR6 column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleShareholderFeesIncomeFundClassR1ClassR2ClassR3ClassR4ClassR5 column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ExpenseExampleHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Expense example&lt;/font&gt;&lt;/div&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Expense example&lt;/font&gt;&lt;/div&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Expense example&lt;/font&gt;&lt;/div&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Expense example &lt;/font&gt;&lt;/div&gt;</rr:ExpenseExampleHeading>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member">JSNWX</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078713_MemberProspectusClassROneRThreeRFourRFiveShares_Member">JSNVX</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078712_MemberProspectusClassROneRThreeRFourRFiveShares_Member">JSNFX</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078711_MemberProspectusClassROneRThreeRFourRFiveShares_Member">JSNHX</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000113489_MemberProspectusClassROneRThreeRFourRFiveShares_Member">JSNSX</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member">JSTRX</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member">JSTIX</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member">JHFIX</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001864_MemberProspectusClassBCShares_Member">STIBX</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001865_MemberProspectusClassBCShares_Member">JSTCX</dei:TradingSymbol>
  <rr:ExpenseExampleByYearCaption contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;&lt;b&gt;Sold&lt;/b&gt;&lt;/font&gt;&lt;/div&gt;</rr:ExpenseExampleByYearCaption>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;www.jhfunds.com/InstitutionalPerformance &lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;www.jhfunds.com/FundPerformance&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;www.jhfunds.com/InstitutionalPerformance&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt; www.jhfunds.com/RetirementPerformance&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:BarChartReturnsForClassNotOfferedInProspectus contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Class R1 shares were first offered on August 5, 2003. Class R3, Class R4 and Class R5 shares were first offered on May 21, 2009 and Class R2 shares were first offered on March 1, 2012. The returns prior to these dates are those of Class A shares that have been recalculated to apply the gross fees and expenses of Class R1, Class R3, Class R4 and Class R5 shares and the estimated gross fees and expenses of Class R2 shares, as applicable.&lt;/font&gt;</rr:BarChartReturnsForClassNotOfferedInProspectus>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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 its most recent fiscal year, the fund&amp;#8217;s portfolio turnover rate was 42% of the average value of its portfolio.   &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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 its most recent fiscal year, the fund&amp;#8217;s portfolio turnover rate was 42% of the average value of its portfolio.  &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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 its most recent fiscal year, the fund&amp;#8217;s portfolio turnover rate was 42% of the average value of its portfolio.     &lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;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 its most recent fiscal year, the fund's portfolio turnover rate was 42% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The following performance information in the bar chart and table below illustrates the variability of the fund&amp;#8217;s returns and provides some indication of the risks of investing in the fund by showing changes in the fund&amp;#8217;s performance from year to year.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The following performance information in the bar chart and table below illustrates the variability of the fund&amp;#8217;s returns and provides some indication of the risks of investing in the fund by showing changes in the fund&amp;#8217;s performance from year to year.  &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The following performance information in the bar chart and table below illustrates the variability of the fund&amp;#8217;s returns and provides some indication of the risks of investing in the fund by showing changes in the fund&amp;#8217;s performance from year to year.&lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The following performance information in the bar chart and table below illustrates the variability of the fund&amp;#8217;s returns and provides some indication of the risks of investing in the fund by showing changes in the fund&amp;#8217;s performance from year to year. &lt;/font&gt;</rr:PerformanceInformationIllustratesVariabilityOfReturns>
  <rr:OperatingExpensesCaption contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;&lt;b&gt;Annual fund operating expenses&lt;/b&gt; (%)&lt;br/&gt;(expenses that you pay each year as a percentage of the value of your investment)&lt;/font&gt;&lt;/div&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;&lt;b&gt; Annual fund operating expenses&lt;/b&gt; (%) &lt;br/&gt;(expenses that you pay each year as a percentage of the value of your investment) &lt;/font&gt;&lt;/div&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;&lt;b&gt; Annual fund operating expenses &lt;/b&gt; (%)&lt;br/&gt; (expenses that you pay each year as a percentage of the value of your investment)&lt;/font&gt;&lt;/div&gt;</rr:OperatingExpensesCaption>
  <rr:OperatingExpensesCaption contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;&lt;b&gt;Annual fund operating expenses&lt;/b&gt; (%)&lt;br/&gt;(expenses that you pay each year as a percentage of the&lt;/font&gt;&lt;br/&gt;&lt;font style="color: rgb(0, 56, 107); "&gt; value of your investment)&lt;/font&gt;&lt;/div&gt;</rr:OperatingExpensesCaption>
  <rr:BarChartClosingTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Year-to-date total return &lt;/b&gt;The fund&amp;#8217;s total return for the six months ended June 30, 2012 was 5.30%. &lt;br/&gt;&lt;br/&gt; &lt;b&gt;Best quarter: &lt;/b&gt;Q2 &amp;#8217;09, 10.90% &lt;br/&gt;&lt;br/&gt; &lt;b&gt;Worst quarter: &lt;/b&gt;Q4 &amp;#8217;08, -7.61% &lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Year-to-date total return &lt;/b&gt; The fund&amp;#8217;s total return for the six months ended June 30, 2012 was 5.33%.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Best quarter: &lt;/b&gt; Q2 &amp;#8217;09, 11.12%&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Worst quarter: &lt;/b&gt;Q4 &amp;#8217;08, -7.61%&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Year-to-date total return &lt;/b&gt;The fund&amp;#8217;s total return for the six months ended June 30, 2012 was 5.09%. &lt;br/&gt;&lt;br/&gt; &lt;b&gt;Best quarter: &lt;/b&gt;Q2 &amp;#8217;09, 11.00% &lt;br/&gt;&lt;br/&gt; &lt;b&gt;Worst quarter: &lt;/b&gt;Q4 &amp;#8217;08, -7.71% &lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:BarChartClosingTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Year-to-date total return &lt;/b&gt; The fund&amp;#8217;s total return for the six months ended June 30, 2012 was 4.88%.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Best quarter: &lt;/b&gt; Q2 &amp;#8217;09, 10.91%&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Worst quarter: &lt;/b&gt;Q4 &amp;#8217;08, -7.81%&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;This table describes the fees and expenses you may pay if you buy and hold shares of the fund. You may qualify for sales charge discounts on Class A shares if you and your family invest, or agree to invest in the future, at least $100,000 in the John Hancock family of funds. More information about these and other discounts is available on pages 15 to 17 of the prospectus under &amp;#8220;Sales charge reductions and waivers&amp;#8221; or pages 56 to 59 of the fund&amp;#8217;s statement of additional information under &amp;#8220;Initial Sales Charge on Class A Shares.&amp;#8221;  &lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;This table describes the fees and expenses you may pay if you buy and hold shares of the fund.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt; This table describes the fees and expenses you may pay if you buy and hold shares of the fund.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;This table describes the fees and expenses you may pay if you buy and hold shares of the fund.&lt;/font&gt;</rr:ExpenseNarrativeTextBlock>
  <dei:EntityRegistrantName contextRef="Duration_02Oct2011_01Oct2012">JOHN HANCOCK STRATEGIC SERIES</dei:EntityRegistrantName>
  <rr:PerformanceAvailabilityPhone contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">1-888-972-8696</rr:PerformanceAvailabilityPhone>
  <rr:PerformanceAvailabilityPhone contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">1-800-225-5291</rr:PerformanceAvailabilityPhone>
  <rr:PerformanceAvailabilityPhone contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">1-888-972-8696</rr:PerformanceAvailabilityPhone>
  <rr:PerformanceAvailabilityPhone contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">1-888-972-8696</rr:PerformanceAvailabilityPhone>
  <rr:BarChartTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualTotalReturnsIncomeFundBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualTotalReturnsIncomeFundClassIBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualTotalReturnsIncomeFundClassR6BarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualTotalReturnsIncomeFundClassR1ClassR2ClassR3ClassR4ClassR5BarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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. Please see below a hypothetical example showing the expenses of a $10,000 investment in the fund for the time periods indicated (Kept column) and then assuming a redemption of all of your shares at the end of those periods (Sold column). The example assumes a 5% average annual return. The example assumes fund expenses will not change over the periods. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:  &lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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. Please see below a hypothetical example showing the expenses of a $10,000 investment at the end of the various time frames indicated. The example assumes a 5% average annual return. The example assumes fund expenses will not change over the periods. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:&lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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. Please see below a hypothetical example showing the expenses of a $10,000 investment at the end of the various time frames indicated. The example assumes a 5% average annual return. The example assumes fund expenses will not change over the periods. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:   &lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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. Please see below a hypothetical example showing the expenses of a $10,000 investment at the end of the various time frames indicated. The example assumes a 5% average annual return. The example assumes fund expenses will not change over the periods. 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_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;&lt;b&gt; Average annual total returns&lt;/b&gt; (%) &lt;br/&gt;&lt;br/&gt;&lt;b&gt;as of 12-31-11&lt;/b&gt;&lt;/font&gt;&lt;/div&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;&lt;b&gt;Average annual total returns&amp;nbsp;&lt;/b&gt; (%)&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;&lt;b&gt;as of 12-31-11&lt;/b&gt;&lt;/font&gt;&lt;/div&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;&lt;b&gt; Average annual total returns &lt;/b&gt; (%) &lt;br/&gt;&lt;br/&gt;&lt;b&gt;as of 12-31-11 &lt;/b&gt;&lt;/font&gt;&lt;/div&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;&lt;b&gt;Average annual total returns&lt;/b&gt; (%)&lt;br/&gt;&lt;br/&gt;&lt;b&gt;as of 12-31-11&lt;/b&gt;&lt;/font&gt;</rr:PerformanceTableHeading>
  <dei:DocumentType contextRef="Duration_02Oct2011_01Oct2012">485BPOS</dei:DocumentType>
  <rr:ExpenseExampleByYearHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;&lt;b&gt;Expenses&lt;/b&gt; ($)&lt;/font&gt;&lt;/div&gt;</rr:ExpenseExampleByYearHeading>
  <rr:ExpenseExampleByYearHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;&lt;b&gt;Expenses&lt;/b&gt; ($)&lt;/font&gt;&lt;/div&gt;</rr:ExpenseExampleByYearHeading>
  <rr:ExpenseExampleByYearHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Expenses ($)&lt;/font&gt;&lt;/div&gt;</rr:ExpenseExampleByYearHeading>
  <rr:ExpenseExampleByYearHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;&lt;b&gt;Expenses&lt;/b&gt; ($)&lt;/font&gt;&lt;/div&gt;</rr:ExpenseExampleByYearHeading>
  <rr:StrategyHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Principal investment strategies&lt;/font&gt;&lt;/div&gt;</rr:StrategyHeading>
  <rr:StrategyHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Principal investment strategies&lt;/font&gt;&lt;/div&gt;</rr:StrategyHeading>
  <rr:StrategyHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Principal investment strategies&lt;/font&gt;&lt;/div&gt;</rr:StrategyHeading>
  <rr:StrategyHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Principal investment strategies&lt;/font&gt;&lt;/div&gt;</rr:StrategyHeading>
  <rr:RiskReturnHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div align="left" style="margin-left: 0px; margin-right: 0px; font-size: 22pt; font-family: Arial, Helvetica; background-color: transparent; "&gt;&lt;div align="left" style="margin-left: 0px; margin-right: 0px; font-size: 14pt; "&gt;&lt;font style="font-family: 'Times New Roman', Times; "&gt;JOHN HANCOCK&lt;/font&gt;&lt;/div&gt;&lt;a name="101" style="font-family: 'Times New Roman'; font-size: medium; background-color: rgb(255, 255, 255); "&gt;&lt;div align="left" style="margin-left: 0px; margin-right: 0px; font-size: 22pt; font-family: Arial, Helvetica; background-color: transparent; "&gt;&lt;font&gt;INCOME FUND&lt;/font&gt;&lt;/div&gt;&lt;/a&gt;&lt;/div&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div align="left" style="margin-left: 0px; margin-right: 0px; font-size: 22pt; font-family: Arial, Helvetica; background-color: transparent; "&gt;&lt;div align="left" style="margin-left: 0px; margin-right: 0px; font-size: 14pt; "&gt;&lt;font style="font-family: 'Times New Roman', Times; "&gt;JOHN HANCOCK&lt;/font&gt;&lt;/div&gt;&lt;a name="101" style="font-family: 'Times New Roman'; font-size: medium; background-color: rgb(255, 255, 255); "&gt;&lt;div align="left" style="margin-left: 0px; margin-right: 0px; font-size: 22pt; font-family: Arial, Helvetica; background-color: transparent; "&gt;&lt;font&gt;INCOME FUND&lt;/font&gt;&lt;/div&gt;&lt;/a&gt;&lt;/div&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div align="left" style="margin-left: 0px; margin-right: 0px; font-size: 22pt; font-family: Arial, Helvetica; background-color: transparent; "&gt;&lt;div align="left" style="margin-left: 0px; margin-right: 0px; font-size: 14pt; "&gt;&lt;font style="font-family: 'Times New Roman', Times; "&gt;JOHN HANCOCK&lt;/font&gt;&lt;/div&gt;&lt;a name="101" style="font-family: 'Times New Roman'; font-size: medium; background-color: rgb(255, 255, 255); "&gt;&lt;div align="left" style="margin-left: 0px; margin-right: 0px; font-size: 22pt; font-family: Arial, Helvetica; background-color: transparent; "&gt;&lt;font&gt;INCOME FUND&lt;/font&gt;&lt;/div&gt;&lt;/a&gt;&lt;/div&gt;</rr:RiskReturnHeading>
  <rr:RiskReturnHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div align="left" style="margin-left: 0px; margin-right: 0px; font-size: 22pt; font-family: Arial, Helvetica; background-color: transparent; "&gt;&lt;div align="left" style="margin-left: 0px; margin-right: 0px; font-size: 14pt; "&gt;&lt;font style="font-family: 'Times New Roman', Times; "&gt;JOHN HANCOCK&lt;/font&gt;&lt;/div&gt;&lt;a name="101" style="font-family: 'Times New Roman'; font-size: medium; background-color: rgb(255, 255, 255); "&gt;&lt;div align="left" style="margin-left: 0px; margin-right: 0px; font-size: 22pt; font-family: Arial, Helvetica; background-color: transparent; "&gt;&lt;font&gt;INCOME FUND&lt;/font&gt;&lt;/div&gt;&lt;/a&gt;&lt;/div&gt;</rr:RiskReturnHeading>
  <rr:ExpenseBreakpointDiscounts contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;You may qualify for sales charge discounts on Class A shares if you and your family invest, or agree to invest in the future, at least $100,000 in the John Hancock family of funds. More information about these and other discounts is available on pages 15 to 17 of the prospectus under &amp;#8220;Sales charge reductions and waivers&amp;#8221; or pages 56 to 59 of the fund&amp;#8217;s statement of additional information under &amp;#8220;Initial Sales Charge on Class A Shares.&amp;#8221;&lt;/font&gt;</rr:ExpenseBreakpointDiscounts>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;"Other expenses" have been estimated for the first year of operations of the fund's Class R2 shares.&lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualFundOperatingExpensesIncomeFund column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualFundOperatingExpensesIncomeFundClassI column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualFundOperatingExpensesIncomeFundClassR6 column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualFundOperatingExpensesIncomeFundClassR1ClassR2ClassR3ClassR4ClassR5 column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;&lt;b&gt;Shareholder fees&lt;/b&gt; (%) (fees paid directly from your investment) &lt;/font&gt;&lt;/div&gt;</rr:ShareholderFeesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;&lt;b&gt;Shareholder fees&lt;/b&gt; (%) (fees paid directly from your investment) &lt;/font&gt;&lt;/div&gt;</rr:ShareholderFeesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;&lt;b&gt;Shareholder fees&lt;/b&gt; (%) (fees paid directly from your investment)&lt;/font&gt;&lt;/div&gt;</rr:ShareholderFeesCaption>
  <rr:ShareholderFeesCaption contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;&lt;b&gt;Shareholder fees&lt;/b&gt; (%) (fees paid directly from your investment) &lt;/font&gt;&lt;/div&gt;</rr:ShareholderFeesCaption>
  <dei:DocumentCreationDate contextRef="Duration_02Oct2011_01Oct2012">2012-09-26</dei:DocumentCreationDate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Your actual after-tax returns may be different. After-tax returns are not relevant to shares held in an IRA, 401(k) or other tax-advantaged investment plan.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Your actual after-tax returns may be different. After-tax returns are not relevant to shares held in an IRA, 401(k) or other tax-advantaged investment plan.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Your actual after-tax returns may be different. After-tax returns are not relevant to shares held in an IRA, 401(k) or other tax-advantaged investment plan.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Your actual after-tax returns may be different. After-tax returns are not relevant to shares held in an IRA, 401(k) or other tax-advantaged investment plan.&lt;/font&gt;</rr:PerformanceTableNotRelevantToTaxDeferred>
  <dei:DocumentPeriodEndDate contextRef="Duration_02Oct2011_01Oct2012">2012-05-31</dei:DocumentPeriodEndDate>
  <rr:ObjectiveHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Investment objective &amp;nbsp;&lt;/font&gt;&lt;/div&gt;</rr:ObjectiveHeading>
  <rr:ObjectiveHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Investment objective  &lt;/font&gt;&lt;/div&gt;</rr:ObjectiveHeading>
  <rr:ObjectiveHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Investment objective&lt;/font&gt;&lt;/div&gt;</rr:ObjectiveHeading>
  <rr:ObjectiveHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Investment objective  &lt;/font&gt;&lt;/div&gt;</rr:ObjectiveHeading>
  <rr:RiskLoseMoney contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund&amp;#8217;s shares will go up and down in price, meaning that you could lose money by investing in the fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskLoseMoney contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund&amp;#8217;s shares will go up and down in price, meaning that you could lose money by investing in the fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskLoseMoney contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund&amp;#8217;s shares will go up and down in price, meaning that you could lose money by investing in the fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:RiskLoseMoney contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund's shares will go up and down in price, meaning that you could lose money by investing in the fund.&lt;/font&gt;</rr:RiskLoseMoney>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartLowestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <dei:EntityCentralIndexKey contextRef="Duration_02Oct2011_01Oct2012">0000792858</dei:EntityCentralIndexKey>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;An investment in the fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund&amp;#8217;s shares will go up and down in price, meaning that you could lose money by investing in the fund. Many factors influence a mutual fund&amp;#8217;s performance.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Instability in the financial markets has led many governments, including the United States government, to take a number of unprecedented actions designed to support certain financial institutions and segments of the financial markets that have experienced extreme volatility and, in some cases, a lack of liquidity. Federal, state and other governments, and their regulatory agencies or self-regulatory organizations, may take actions that affect the regulation of the instruments in which the fund invests, or the issuers of such instruments, in ways that are unforeseeable. Legislation or regulation may also change the way in which the fund itself is regulated. Such legislation or regulation could limit or preclude the fund&amp;#8217;s ability to achieve its investment objective.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Governments or their agencies may also acquire distressed assets from financial institutions and acquire ownership interests in those institutions. The implications of government ownership and disposition of these assets are unclear, and such a program may have positive or negative effects on the liquidity, valuation and performance of the fund&amp;#8217;s portfolio holdings. Furthermore, volatile financial markets can expose the fund to greater market and liquidity risk and potential difficulty in valuing portfolio instruments held by the fund.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund&amp;#8217;s main risk factors are listed below in alphabetical order. &lt;i&gt;Before investing, be sure to read the additional descriptions of these risks beginning on page 6 of the prospectus.&lt;/i&gt;&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Active management risk &lt;/b&gt; The subadviser&amp;#8217;s investment strategy may fail to produce the intended result.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Changing distribution levels risk &lt;/b&gt; The distribution amounts paid by the fund generally depend on the amount of income and/or dividends paid by the fund&amp;#8217;s investments.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Credit and counterparty risk &lt;/b&gt; The issuer or guarantor of a fixed-income security, the counterparty to an over-the-counter derivatives contract or a borrower of a fund&amp;#8217;s securities may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations. U.S. government securities are subject to varying degrees of credit risk depending upon the nature of their support. Funds that invest in fixed-income securities are subject to varying degrees of risk that the issuers of the securities will have their credit rating downgraded or will default, potentially reducing a fund&amp;#8217;s share price and income level.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Economic and market events risk &lt;/b&gt; Events in the financial markets have resulted, and may continue to result, in an unusually high degree of volatility in the financial markets, both domestic and foreign. In addition, reduced liquidity in credit and fixed-income markets may adversely affect issuers worldwide.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Equity securities risk &lt;/b&gt; The value of a company&amp;#8217;s equity securities is subject to changes in the company&amp;#8217;s financial condition, and overall market and economic conditions.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Fixed-income securities risk &lt;/b&gt; Fixed-income securities are affected by changes in interest rates and credit quality. A rise in interest rates typically causes bond prices to fall. The longer the average maturity of the bonds held by the fund, the more sensitive the fund is likely to be to interest-rate changes. There is the possibility that the issuer of the security will not repay all or a portion of the principal borrowed and will not make all interest payments.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Foreign securities risk &lt;/b&gt; As compared to U.S. companies, there may be less publicly available information relating to foreign companies. Foreign securities may be subject to foreign taxes. The value of foreign securities is subject to currency fluctuations and adverse political and economic developments. Investments in emerging-market countries are subject to greater levels of foreign investment risk.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Hedging, derivatives and other strategic transactions risk &lt;/b&gt; Hedging and other strategic transactions may increase the volatility of a fund and, if the transaction is not successful, could result in a significant loss to a fund. The use of derivative instruments could produce disproportionate gains or losses, more than the principal amount invested. Investing in derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments and, in a down market, could become harder to value or sell at a fair price. The following is a list of certain derivatives and other strategic transactions in which the fund intends to invest and the main risks associated with each of them:&lt;/font&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Credit default swaps &lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), interest-rate risk, risk of default of the underlying reference obligation and risk of disproportionate loss are the principal risks of engaging in transactions involving credit default swaps.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Foreign currency forward contracts &lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), foreign currency risk and risk of disproportionate loss are the principal risks of engaging in transactions involving foreign currency forward contracts.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt; &lt;b&gt;Foreign currency swaps &lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), foreign currency risk and risk of disproportionate loss are the principal risks of engaging in transactions involving foreign currency swaps.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Futures contracts &lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions) and risk of disproportionate loss are the principal risks of engaging in transactions involving futures contracts.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Interest-rate swaps &lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), interest-rate risk and risk of disproportionate loss are the principal risks of engaging in transactions involving interest-rate swaps.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Options &lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions) and risk of disproportionate loss are the principal risks of engaging in transactions involving options. Counterparty risk does not apply to exchange-traded options.&lt;/font&gt;&lt;/blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Issuer risk &lt;/b&gt; An issuer of a security may perform poorly and, therefore, the value of its stocks and bonds may decline. An issuer of securities held by the fund could default or have its credit rating downgraded.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Liquidity risk &lt;/b&gt; Exposure exists when trading volume, lack of a market maker or legal restrictions impair the ability to sell particular securities or close derivative positions at an advantageous price.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Lower-rated fixed-income securities risk and high-yield securities risk &lt;/b&gt; Lower-rated fixed-income securities and high-yield fixed-income securities (commonly known as &amp;#8220;junk bonds&amp;#8221;) are subject to greater credit quality risk and risk of default than higher-rated fixed-income securities. These securities may be considered speculative and the value of these securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market or economic developments and can be difficult to resell.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Sector investing risk &lt;/b&gt; Because the fund may focus on a single sector of the economy, its performance depends in large part on the performance of that sector. As a result, the value of your investment may fluctuate more widely than it would in a fund that is diversified across sectors.&lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;An investment in the fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund&amp;#8217;s shares will go up and down in price, meaning that you could lose money by investing in the fund. Many factors influence a mutual fund&amp;#8217;s performance.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Instability in the financial markets has led many governments, including the United States government, to take a number of unprecedented actions designed to support certain financial institutions and segments of the financial markets that have experienced extreme volatility and, in some cases, a lack of liquidity. Federal, state and other governments, and their regulatory agencies or self-regulatory organizations, may take actions that affect the regulation of the instruments in which the fund invests, or the issuers of such instruments, in ways that are unforeseeable. Legislation or regulation may also change the way in which the fund itself is regulated. Such legislation or regulation could limit or preclude the fund&amp;#8217;s ability to achieve its investment objective.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Governments or their agencies may also acquire distressed assets from financial institutions and acquire ownership interests in those institutions. The implications of government ownership and disposition of these assets are unclear, and such a program may have positive or negative effects on the liquidity, valuation and performance of the fund&amp;#8217;s portfolio holdings. Furthermore, volatile financial markets can expose the fund to greater market and liquidity risk and potential difficulty in valuing portfolio instruments held by the fund.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund&amp;#8217;s main risk factors are listed below in alphabetical order. &lt;i&gt;Before investing, be sure to read the additional descriptions of these risks beginning on page 6 of the prospectus.&lt;/i&gt;&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Active management risk&lt;/b&gt; The subadviser&amp;#8217;s investment strategy may fail to produce the intended result.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Changing distribution levels risk &lt;/b&gt; The distribution amounts paid by the fund generally depend on the amount of income and/or dividends paid by the fund&amp;#8217;s investments.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Credit and counterparty risk &lt;/b&gt; The issuer or guarantor of a fixed-income security, the counterparty to an over-the-counter derivatives contract or a borrower of a fund&amp;#8217;s securities may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations. U.S. government securities are subject to varying degrees of credit risk depending upon the nature of their support. Funds that invest in fixed-income securities are subject to varying degrees of risk that the issuers of the securities will have their credit rating downgraded or will default, potentially reducing a fund&amp;#8217;s share price and income level.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Economic and market events risk&lt;/b&gt; Events in the financial markets have resulted, and may continue to result, in an unusually high degree of volatility in the financial markets, both domestic and foreign. In addition, reduced liquidity in credit and fixed-income markets may adversely affect issuers worldwide.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Equity securities risk &lt;/b&gt; The value of a company&amp;#8217;s equity securities is subject to changes in the company&amp;#8217;s financial condition, and overall market and economic conditions.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Fixed-income securities risk &lt;/b&gt; Fixed-income securities are affected by changes in interest rates and credit quality. A rise in interest rates typically causes bond prices to fall. The longer the average maturity of the bonds held by the fund, the more sensitive the fund is likely to be to interest-rate changes. There is the possibility that the issuer of the security will not repay all or a portion of the principal borrowed and will not make all interest payments.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Foreign securities risk &lt;/b&gt; As compared to U.S. companies, there may be less publicly available information relating to foreign companies. Foreign securities may be subject to foreign taxes. The value of foreign securities is subject to currency fluctuations and adverse political and economic developments. Investments in emerging-market countries are subject to greater levels of foreign investment risk.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Hedging, derivatives and other strategic transactions risk &lt;/b&gt; Hedging and other strategic transactions may increase the volatility of a fund and, if the transaction is not successful, could result in a significant loss to a fund. The use of derivative instruments could produce disproportionate gains or losses, more than the principal amount invested. Investing in derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments and, in a down market, could become harder to value or sell at a fair price. The following is a list of certain derivatives and other strategic transactions in which the fund intends to invest and the main risks associated with each of them:&lt;/font&gt;&lt;br/&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Credit default swaps &lt;/b&gt;Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), interest-rate risk, risk of default of the underlying reference obligation and risk of disproportionate loss are the principal risks of engaging in transactions involving credit default swaps.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Foreign currency forward contracts &lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), foreign currency risk and risk of disproportionate loss are the principal risks of engaging in transactions involving foreign currency forward contracts.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Foreign currency swaps&lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), foreign currency risk and risk of disproportionate loss are the principal risks of engaging in transactions involving foreign currency swaps.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Futures contracts &lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions) and risk of disproportionate loss are the principal risks of engaging in transactions involving futures contracts.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Interest-rate swaps &lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), interest-rate risk and risk of disproportionate loss are the principal risks of engaging in transactions involving interest-rate swaps.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Options &lt;/b&gt;  Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions) and risk of disproportionate loss are the principal risks of engaging in transactions involving options. Counterparty risk does not apply to exchange-traded options.&lt;/font&gt;&lt;/blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Issuer risk &lt;/b&gt;   An issuer of a security may perform poorly and, therefore, the value of its stocks and bonds may decline. An issuer of securities held by the fund could default or have its credit rating downgraded.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Liquidity risk &lt;/b&gt;  Exposure exists when trading volume, lack of a market maker or legal restrictions impair the ability to sell particular securities or close derivative positions at an advantageous price.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt; Lower-rated fixed-income securities risk and high-yield securities risk &lt;/b&gt;Lower-rated fixed-income securities and high-yield fixed-income securities (commonly known as &amp;#8220;junk bonds&amp;#8221;) are subject to greater credit quality risk and risk of default than higher-rated fixed-income securities. These securities may be considered speculative and the value of these securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market or economic developments and can be difficult to resell.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Sector investing risk &lt;/b&gt; Because the fund may focus on a single sector of the economy, its performance depends in large part on the performance of that sector. As a result, the value of your investment may fluctuate more widely than it would in a fund that is diversified across sectors.&lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;An investment in the fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund&amp;#8217;s shares will go up and down in price, meaning that you could lose money by investing in the fund. Many factors influence a mutual fund&amp;#8217;s performance.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Instability in the financial markets has led many governments, including the United States government, to take a number of unprecedented actions designed to support certain financial institutions and segments of the financial markets that have experienced extreme volatility and, in some cases, a lack of liquidity. Federal, state and other governments, and their regulatory agencies or self-regulatory organizations, may take actions that affect the regulation of the instruments in which the fund invests, or the issuers of such instruments, in ways that are unforeseeable. Legislation or regulation may also change the way in which the fund itself is regulated. Such legislation or regulation could limit or preclude the fund&amp;#8217;s ability to achieve its investment objective.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Governments or their agencies may also acquire distressed assets from financial institutions and acquire ownership interests in those institutions. The implications of government ownership and disposition of these assets are unclear, and such a program may have positive or negative effects on the liquidity, valuation and performance of the fund&amp;#8217;s portfolio holdings. Furthermore, volatile financial markets can expose the fund to greater market and liquidity risk and potential difficulty in valuing portfolio instruments held by the fund.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund&amp;#8217;s main risk factors are listed below in alphabetical order. &lt;i&gt;Before investing, be sure to read the additional descriptions of these risks beginning on page 6 of the prospectus.&lt;/i&gt;&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Active management risk&lt;/b&gt; The subadviser&amp;#8217;s investment strategy may fail to produce the intended result.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Changing distribution levels risk &lt;/b&gt; The distribution amounts paid by the fund generally depend on the amount of income &lt;font style="WHITE-SPACE: nowrap"&gt;and/or&lt;/font&gt; dividends paid by the fund&amp;#8217;s investments.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Credit and counterparty risk &lt;/b&gt; The issuer or guarantor of a fixed-income security, the counterparty to an over-the-counter derivatives contract or a borrower of a fund&amp;#8217;s securities may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations. U.S. government securities are subject to varying degrees of credit risk depending upon the nature of their support. Funds that invest in fixed-income securities are subject to varying degrees of risk that the issuers of the securities will have their credit rating downgraded or will default, potentially reducing a fund&amp;#8217;s share price and income level.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Economic and market events risk&lt;/b&gt; Events in the financial markets have resulted, and may continue to result, in an unusually high degree of volatility in the financial markets, both domestic and foreign. In addition, reduced liquidity in credit and fixed-income markets may adversely affect issuers worldwide.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Equity securities risk &lt;/b&gt; The value of a company&amp;#8217;s equity securities is subject to changes in the company&amp;#8217;s financial condition, and overall market and economic conditions.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Fixed-income securities risk &lt;/b&gt; Fixed-income securities are affected by changes in interest rates and credit quality. A rise in interest rates typically causes bond prices to fall. The longer the average maturity of the bonds held by the fund, the more sensitive the fund is likely to be to interest-rate changes. There is the possibility that the issuer of the security will not repay all or a portion of the principal borrowed and will not make all interest payments.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Foreign securities risk &lt;/b&gt; As compared to U.S. companies, there may be less publicly available information relating to foreign companies. Foreign securities may be subject to foreign taxes. The value of foreign securities is subject to currency fluctuations and adverse political and economic developments. Investments in emerging-market countries are subject to greater levels of foreign investment risk.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Hedging, derivatives and other strategic transactions risk &lt;/b&gt; Hedging and other strategic transactions may increase the volatility of a fund and, if the transaction is not successful, could result in a significant loss to a fund. The use of derivative instruments could produce disproportionate gains or losses, more than the principal amount invested. Investing in derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments and, in a down market, could become harder to value or sell at a fair price. The following is a list of certain derivatives and other strategic transactions in which the fund intends to invest and the main risks associated with each of them:&lt;/font&gt;&lt;br/&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Credit default swaps &lt;/b&gt;Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), interest-rate risk, risk of default of the underlying reference obligation and risk of disproportionate loss are the principal risks of engaging in transactions involving credit default swaps.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Foreign currency forward contracts &lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), foreign currency risk and risk of disproportionate loss are the principal risks of engaging in transactions involving foreign currency forward contracts.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Foreign currency swaps&lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), foreign currency risk and risk of disproportionate loss are the principal risks of engaging in transactions involving foreign currency swaps.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Futures contracts &lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions) and risk of disproportionate loss are the principal risks of engaging in transactions involving futures contracts.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Interest-rate swaps &lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), interest-rate risk and risk of disproportionate loss are the principal risks of engaging in transactions involving interest-rate swaps.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Options &lt;/b&gt;  Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions) and risk of disproportionate loss are the principal risks of engaging in transactions involving options. Counterparty risk does not apply to exchange-traded options.&lt;/font&gt;&lt;/blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Issuer risk &lt;/b&gt;   An issuer of a security may perform poorly and, therefore, the value of its stocks and bonds may decline. An issuer of securities held by the fund could default or have its credit rating downgraded.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Liquidity risk &lt;/b&gt;  Exposure exists when trading volume, lack of a market maker or legal restrictions impair the ability to sell particular securities or close derivative positions at an advantageous price.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt; Lower-rated fixed-income securities risk and high-yield securities risk &lt;/b&gt;Lower-rated fixed-income securities and high-yield fixed-income securities (commonly known as &amp;#8220;junk bonds&amp;#8221;) are subject to greater credit quality risk and risk of default than higher-rated fixed-income securities. These securities may be considered speculative and the value of these securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market or economic developments and can be difficult to resell.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Sector investing risk &lt;/b&gt; Because the fund may focus on a single sector of the economy, its performance depends in large part on the performance of that sector. As a result, the value of your investment may fluctuate more widely than it would in a fund that is diversified across sectors.&lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;An investment in the fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The fund's shares will go up and down in price, meaning that you could lose money by investing in the fund. Many factors influence a mutual fund's performance.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Instability in the financial markets has led many governments, including the United States government, to take a number of unprecedented actions designed to support certain financial institutions and segments of the financial markets that have experienced extreme volatility and, in some cases, a lack of liquidity. Federal, state and other governments, and their regulatory agencies or self-regulatory organizations, may take actions that affect the regulation of the instruments in which the fund invests, or the issuers of such instruments, in ways that are unforeseeable. Legislation or regulation may also change the way in which the fund itself is regulated. Such legislation or regulation could limit or preclude the fund's ability to achieve its investment objective.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Governments or their agencies may also acquire distressed assets from financial institutions and acquire ownership interests in those institutions. The implications of government ownership and disposition of these assets are unclear, and such a program may have positive or negative effects on the liquidity, valuation and performance of the fund's portfolio holdings. Furthermore, volatile financial markets can expose the fund to greater market and liquidity risk and potential difficulty in valuing portfolio instruments held by the fund.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund's main risk factors are listed below in alphabetical order.&lt;i&gt; Before investing, be sure to read the additional descriptions of these risks beginning on page 6 of the prospectus.&lt;/i&gt;&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Active management risk&lt;/b&gt; The subadviser's investment strategy may fail to produce the intended result.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Changing distribution levels risk&lt;/b&gt; The distribution amounts paid by the fund generally depend on the amount of income and/or dividends paid by the fund's investments.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Credit and counterparty risk&lt;/b&gt; The issuer or guarantor of a fixed-income security, the counterparty to an over-the-counter derivatives contract or a borrower of a fund's securities may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise honor its obligations. U.S. government securities are subject to varying degrees of credit risk depending upon the nature of their support. Funds that invest in fixed-income securities are subject to varying degrees of risk that the issuers of the securities will have their credit rating downgraded or will default, potentially reducing a fund's share price and income level.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Economic and market events risk&lt;/b&gt; Events in the financial markets have resulted, and may continue to result, in an unusually high degree of volatility in the financial markets, both domestic and foreign. In addition, reduced liquidity in credit and fixed-income markets may adversely affect issuers worldwide.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Equity securities risk&lt;/b&gt; The value of a company's equity securities is subject to changes in the company's financial condition, and overall market and economic conditions.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Fixed-income securities risk&lt;/b&gt; Fixed-income securities are affected by changes in interest rates and credit quality. A rise in interest rates typically causes bond prices to fall. The longer the average maturity of the bonds held by the fund, the more sensitive the fund is likely to be to interest-rate changes. There is the possibility that the issuer of the security will not repay all or a portion of the principal borrowed and will not make all interest payments.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Foreign securities risk&lt;/b&gt; As compared to U.S. companies, there may be less publicly available information relating to foreign companies. Foreign securities may be subject to foreign taxes. The value of foreign securities is subject to currency fluctuations and adverse political and economic developments. Investments in emerging-market countries are subject to greater levels of foreign investment risk.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Hedging, derivatives and other strategic transactions risk&lt;/b&gt; Hedging and other strategic transactions may increase the volatility of a fund and, if the transaction is not successful, could result in a significant loss to a fund. The use of derivative instruments could produce disproportionate gains or losses, more than the principal amount invested. Investing in derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments and, in a down market, could become harder to value or sell at a fair price. The following is a list of certain derivatives and other strategic transactions in which the fund intends to invest and the main risks associated with each of them:&lt;/font&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Credit default swaps&lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), interest-rate risk, risk of default of the underlying reference obligation and risk of disproportionate loss are the principal risks of engaging in transactions involving credit default swaps.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Foreign currency forward contracts&lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), foreign currency risk and risk of disproportionate loss are the principal risks of engaging in transactions involving foreign currency forward contracts.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Foreign currency swaps&lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), foreign currency risk and risk of disproportionate loss are the principal risks of engaging in transactions involving foreign currency swaps.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Futures contracts&lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions) and risk of disproportionate loss are the principal risks of engaging in transactions involving futures contracts.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Interest-rate swaps&lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions), interest-rate risk and risk of disproportionate loss are the principal risks of engaging in transactions involving interest-rate swaps.&lt;/font&gt;&lt;/blockquote&gt;&lt;blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Options&lt;/b&gt; Counterparty risk, liquidity risk (i.e., the inability to enter into closing transactions) and risk of disproportionate loss are the principal risks of engaging in transactions involving options. Counterparty risk does not apply to exchange-traded options.&lt;/font&gt;&lt;/blockquote&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Issuer risk&lt;/b&gt; An issuer of a security may perform poorly and, therefore, the value of its stocks and bonds may decline. An issuer of securities held by the fund could default or have its credit rating downgraded.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Liquidity risk&lt;/b&gt; Exposure exists when trading volume, lack of a market maker or legal restrictions impair the ability to sell particular securities or close derivative positions at an advantageous price.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Lower-rated fixed-income securities risk and high-yield securities risk&lt;/b&gt; Lower-rated fixed-income securities and high-yield fixed-income securities (commonly known as "junk bonds") are subject to greater credit quality risk and risk of default than higher-rated fixed-income securities. These securities may be considered speculative and the value of these securities can be more volatile due to increased sensitivity to adverse issuer, political, regulatory, market or economic developments and can be difficult to resell.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Sector investing risk&lt;/b&gt; Because the fund may focus on a single sector of the economy, its performance depends in large part on the performance of that sector. As a result, the value of your investment may fluctuate more widely than it would in a fund that is diversified across sectors.&lt;/font&gt;</rr:RiskNarrativeTextBlock>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Worst quarter&lt;/b&gt;&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Worst quarter: &lt;/b&gt;&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Worst quarter:&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Worst quarter: &lt;/b&gt;&lt;/font&gt;</rr:LowestQuarterlyReturnLabel>
  <rr:ExpenseHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Fees and expenses&amp;nbsp;&lt;/font&gt;&lt;/div&gt;</rr:ExpenseHeading>
  <rr:ExpenseHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Fees and expenses&lt;/font&gt;&lt;/div&gt;</rr:ExpenseHeading>
  <rr:ExpenseHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Fees and expenses&lt;/font&gt;&lt;/div&gt;</rr:ExpenseHeading>
  <rr:ExpenseHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Fees and Expenses &lt;/font&gt;&lt;/div&gt;</rr:ExpenseHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Under normal market conditions, the fund invests primarily in the following types of securities: foreign government and corporate debt securities from developed and emerging markets, U.S. government and agency securities and domestic high-yield bonds.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund may also invest in preferred securities and other types of debt securities.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt; Although the fund may invest up to 10% of its total assets in securities rated, at the time of purchase, as low as D (in default) by Standard &amp;amp; Poor&amp;#8217;s Corporation (S&amp;amp;P) or Moody&amp;#8217;s Investors Service, Inc. (Moody&amp;#8217;s) (or their unrated equivalents), it generally intends to keep its average credit quality in the investment-grade range (AAA to BBB). There is no limit on the fund&amp;#8217;s average maturity.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt; In managing the fund, the subadviser allocates assets among the three major types of securities based on analysis of economic factors, such as projected international interest-rate movements, industry cycles and political trends. However, the subadviser may invest up to 100% of the fund&amp;#8217;s assets in any one sector. Within each type of security, the subadviser looks for investments that are appropriate for the overall fund in terms of yield, credit quality, structure and industry distribution. In selecting securities, relative yields and risk/reward ratios are the primary considerations.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt; The fund may use certain higher-risk investments, including restricted or illiquid securities and derivatives, which include futures contracts on securities, indexes and foreign currency; options on futures contracts, securities, indexes and foreign currency; interest rate, foreign currency and credit default swaps; and foreign currency forward contracts, in each case, for the purposes of reducing risk, obtaining efficient market exposure and/or enhancing investment returns. In addition, the fund may invest up to 10% of its net assets in domestic or foreign common stocks.&lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Under normal market conditions, the fund invests primarily in the following types of securities: foreign government and corporate debt securities from developed and emerging markets, U.S. government and agency securities and domestic high-yield bonds.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund may also invest in preferred securities and other types of debt securities.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Although the fund may invest up to 10% of its total assets in securities rated, at the time of purchase, as low as D (in default) by Standard &amp;amp; Poor&amp;#8217;s Corporation (S&amp;amp;P) or Moody&amp;#8217;s Investors Service, Inc. (Moody&amp;#8217;s) (or their unrated equivalents), it generally intends to keep its average credit quality in the investment-grade range (AAA to BBB). There is no limit on the fund&amp;#8217;s average maturity.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;In managing the fund, the subadviser allocates assets among the three major types of securities based on analysis of economic factors, such as projected international interest-rate movements, industry cycles and political trends. However, the subadviser may invest up to 100% of the fund&amp;#8217;s assets in any one sector. Within each type of security, the subadviser looks for investments that are appropriate for the overall fund in terms of yield, credit quality, structure and industry distribution. In selecting securities, relative yields and risk/reward ratios are the primary considerations.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund may use certain higher-risk investments, including restricted or illiquid securities and derivatives, which include futures contracts on securities, indexes and foreign currency; options on futures contracts, securities, indexes and foreign currency; interest rate, foreign currency and credit default swaps; and foreign currency forward contracts, in each case, for the purposes of reducing risk, obtaining efficient market exposure and/or enhancing investment returns. In addition, the fund may invest up to 10% of its net assets in domestic or foreign common stocks.&lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Under normal market conditions, the fund invests primarily in the following types of securities: foreign government and corporate debt securities from developed and emerging markets, U.S. government and agency securities and domestic high-yield bonds.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund may also invest in preferred securities and other types of debt securities.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Although the fund may invest up to 10% of its total assets in securities rated, at the time of purchase, as low as D (in default) by Standard &amp;amp; Poor&amp;#8217;s Corporation (S&amp;amp;P) or Moody&amp;#8217;s Investors Service, Inc. (Moody&amp;#8217;s) (or their unrated equivalents), it generally intends to keep its average credit quality in the investment-grade range (AAA to BBB). There is no limit on the fund&amp;#8217;s average maturity.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;In managing the fund, the subadviser allocates assets among the three major types of securities based on analysis of economic factors, such as projected international interest-rate movements, industry cycles and political trends. However, the subadviser may invest up to 100% of the fund&amp;#8217;s assets in any one sector. Within each type of security, the subadviser looks for investments that are appropriate for the overall fund in terms of yield, credit quality, structure and industry distribution. In selecting securities, relative yields and risk/reward ratios are the primary considerations.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund may use certain higher-risk investments, including restricted or illiquid securities and derivatives, which include futures contracts on securities, indexes and foreign currency; options on futures contracts, securities, indexes and foreign currency; interest rate, foreign currency and credit default swaps; and foreign currency forward contracts, in each case, for the purposes of reducing risk, obtaining efficient market exposure &lt;font style="WHITE-SPACE: nowrap"&gt;and/or&lt;/font&gt; enhancing investment returns. In addition, the fund may invest up to 10% of its net assets in domestic or foreign common stocks.  &lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Under normal market conditions, the fund invests primarily in the following types of securities: foreign government and corporate debt securities from developed and emerging markets, U.S. government and agency securities and domestic high-yield bonds.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund may also invest in preferred securities and other types of debt securities.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Although the fund may invest up to 10% of its total assets in securities rated, at the time of purchase, as low as D &amp;#40;in default&amp;#41; by Standard &amp;#38; Poor's Corporation &amp;#40;S&amp;#38;P&amp;#41; or Moody's Investors Service, Inc. &amp;#40;Moody's&amp;#41; &amp;#40;or their unrated equivalents&amp;#41;, it generally intends to keep its average credit quality in the investment-grade range &amp;#40;AAA to BBB&amp;#41;. There is no limit on the fund's average maturity.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;In managing the fund, the subadviser allocates assets among the three major types of securities based on analysis of economic factors, such as projected international interest-rate movements, industry cycles and political trends. However, the subadviser may invest up to 100% of the fund's assets in any one sector. Within each type of security, the subadviser looks for investments that are appropriate for the overall fund in terms of yield, credit quality, structure and industry distribution. In selecting securities, relative yields and risk/reward ratios are the primary considerations.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund may use certain higher-risk investments, including restricted or illiquid securities and derivatives, which include futures contracts on securities, indexes and foreign currency; options on futures contracts, securities, indexes and foreign currency; interest rate, foreign currency and credit default swaps; and foreign currency forward contracts, in each case, for the purposes of reducing risk, obtaining efficient market exposure and/or enhancing investment returns. In addition, the fund may invest up to 10% of its net assets in domestic or foreign common stocks.&lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Portfolio turnover&lt;/font&gt;&lt;/div&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Portfolio turnover&lt;/font&gt;&lt;/div&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Portfolio turnover&lt;/font&gt;&lt;/div&gt;</rr:PortfolioTurnoverHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Portfolio turnover&lt;/font&gt;&lt;/div&gt;</rr:PortfolioTurnoverHeading>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;They reflect the highest individual federal marginal income tax rates in effect as of the date provided and do not reflect any state or local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;They reflect the highest individual federal marginal income tax rates in effect as of the date provided and do not reflect any state or local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;These reflect the highest individual federal marginal income tax rates in effect as of the date provided and do not reflect any state or local taxes.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;They reflect the highest individual federal marginal income tax rates in effect as of the date provided and do not reflect any state or local taxes. &lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member">2009-06-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:ExpenseExampleNoRedemptionByYearCaption contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;&lt;b&gt;Kept&lt;/b&gt;&lt;/font&gt;&lt;/div&gt;</rr:ExpenseExampleNoRedemptionByYearCaption>
  <rr:BarChartHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;&lt;b&gt; Calendar year total returns &amp;#151;&lt;/b&gt; Class I (%) &lt;/font&gt;&lt;/div&gt;</rr:BarChartHeading>
  <rr:BarChartHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;&lt;b&gt; Calendar year total returns&amp;nbsp;&amp;#8212; Class&amp;nbsp;R6&amp;nbsp;(%)&lt;/b&gt;&lt;/font&gt;&lt;/div&gt;</rr:BarChartHeading>
  <rr:BarChartHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;&lt;b&gt;Calendar year total returns&amp;nbsp;&amp;#151;&amp;nbsp;&lt;/b&gt;Class A (%) &lt;/font&gt;&lt;/div&gt;</rr:BarChartHeading>
  <rr:BarChartHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 8pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;&lt;b&gt;Calendar year total returns&amp;nbsp;&amp;#8212;&lt;/b&gt; Class&amp;nbsp;R1&amp;nbsp;(%)&lt;/font&gt;</rr:BarChartHeading>
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</rr:PerformanceTableTextBlock>
  <dei:DocumentEffectiveDate contextRef="Duration_02Oct2011_01Oct2012">2012-10-01</dei:DocumentEffectiveDate>
  <dei:AmendmentFlag contextRef="Duration_02Oct2011_01Oct2012">false</dei:AmendmentFlag>
  <rr:PerformanceTableOneClassOfAfterTaxShown contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;After-tax returns &lt;/b&gt; These are shown only for Class A shares and would be different for other classes.&lt;/font&gt;</rr:PerformanceTableOneClassOfAfterTaxShown>
  <rr:PerformanceTableOneClassOfAfterTaxShown contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;After-tax returns &lt;/b&gt; These are shown only for Class R1 shares and would be different for other classes.&lt;/font&gt;</rr:PerformanceTableOneClassOfAfterTaxShown>
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  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;However, past performance (before and after taxes) does not indicate future results.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;However, past performance (before and after taxes) does not indicate future results.&lt;/fotnt&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;However, past performance (before and after taxes) does not indicate future results.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformancePastDoesNotIndicateFuture contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;However, past performance (before and after taxes) does not indicate future results.&lt;/font&gt;</rr:PerformancePastDoesNotIndicateFuture>
  <rr:PerformanceAdditionalMarketIndex contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Average annual total returns&lt;/b&gt; Performance of a broad-based market index is included for comparison.&lt;/font&gt;</rr:PerformanceAdditionalMarketIndex>
  <rr:PerformanceAdditionalMarketIndex contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Average annual total returns &lt;/b&gt; Performance of a broad-based market index is included for comparison.&lt;/font&gt;</rr:PerformanceAdditionalMarketIndex>
  <rr:PerformanceAdditionalMarketIndex contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Average annual total returns &lt;/b&gt; Performance of a broad-based market index is included for comparison.&lt;/font&gt;</rr:PerformanceAdditionalMarketIndex>
  <rr:PerformanceAdditionalMarketIndex contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Average annual total returns &lt;/b&gt; Performance of a broad-based market index is included for comparison.&lt;/font&gt;</rr:PerformanceAdditionalMarketIndex>
  <rr:YearToDateReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Year-to-date total return&lt;/b&gt;&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:YearToDateReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Year-to-date total return&lt;/b&gt;&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:YearToDateReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Year-to-date total return&lt;/b&gt;&lt;/font&gt;</rr:YearToDateReturnLabel>
  <rr:YearToDateReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Year-to-date total return &lt;/b&gt;&lt;/font&gt;</rr:YearToDateReturnLabel>
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  <rr:RiskHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Principal risks&lt;/font&gt;&lt;/div&gt;</rr:RiskHeading>
  <rr:RiskHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Principal risks&lt;/font&gt;&lt;/div&gt;</rr:RiskHeading>
  <rr:RiskHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Principal risks&lt;/font&gt;&lt;/div&gt;</rr:RiskHeading>
  <rr:RiskHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Principal risks&lt;/font&gt;&lt;/div&gt;</rr:RiskHeading>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;An investment in the fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.&lt;/font&gt;</rr:RiskNotInsuredDepositoryInstitution>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;An investment in the fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.&lt;/font&gt;</rr:RiskNotInsuredDepositoryInstitution>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;An investment in the fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.&lt;/font&gt;</rr:RiskNotInsuredDepositoryInstitution>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;An investment in the fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. &lt;/font&gt;</rr:RiskNotInsuredDepositoryInstitution>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Best quarter&lt;/b&gt;&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Best quarter: &lt;/b&gt;&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Best quarter:&lt;/b&gt;&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:HighestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Best quarter: &lt;/b&gt;&lt;/font&gt;</rr:HighestQuarterlyReturnLabel>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;To seek a high level of current income.&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;To seek a high level of current income.&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;To seek a high level of current income.&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;To seek a high level of current income.&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The following performance information in the bar chart and table below illustrates the variability of the fund&amp;#8217;s returns and provides some indication of the risks of investing in the fund by showing changes in the fund&amp;#8217;s performance from year to year. However, past performance (before and after taxes) does not indicate future results. All figures assume dividend reinvestment. Performance for the fund is updated daily, monthly and quarterly and may be obtained at our Web site: www.jhfunds.com/FundPerformance, or by calling 1-800-225-5291, Monday&amp;#8211;Thursday between 8:00 &lt;font style="FONT-VARIANT: small-caps"&gt;a.m.&lt;/font&gt; and 7:00 &lt;font style="FONT-VARIANT: small-caps"&gt;p.m.&lt;/font&gt; and on Fridays between 8:00 &lt;font style="FONT-VARIANT: small-caps"&gt;a.m.&lt;/font&gt; and 6:00 &lt;font style="FONT-VARIANT: small-caps"&gt;p.m.&lt;/font&gt;, Eastern Time.  &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Calendar year total returns &lt;/b&gt;  These do not include sales charges and would have been lower if they did. Calendar year total returns are shown only for Class A shares and would be different for other share classes.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Average annual total returns &lt;/b&gt; Performance of a broad-based market index is included for comparison.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;After-tax returns &lt;/b&gt; These are shown only for Class A shares and would be different for other classes. They reflect the highest individual federal marginal income tax rates in effect as of the date provided and do not reflect any state or local taxes. Your actual after-tax returns may be different. After-tax returns are not relevant to shares held in an IRA, 401(k) or other tax-advantaged investment plan.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The following performance information in the bar chart and table below illustrates the variability of the fund&amp;#8217;s returns and provides some indication of the risks of investing in the fund by showing changes in the fund&amp;#8217;s performance from year to year. However, past performance (before and after taxes) does not indicate future results. All figures assume dividend reinvestment. Performance for the fund is updated daily, monthly and quarterly and may be obtained at our Web site: www.jhfunds.com/InstitutionalPerformance, or by calling 1-888-972-8696 between 8:30 a.m. and 5:00 p.m., Eastern Time, on most business days.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Average annual total returns&lt;/b&gt; Performance of a broad-based market index is included for comparison.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;After-tax returns&lt;/b&gt; They reflect the highest individual federal marginal income tax rates in effect as of the date provided and do not reflect any state or local taxes. Your actual after-tax returns may be different. After-tax returns are not relevant to shares held in an IRA, 401(k) or other tax-advantaged investment plan.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The following performance information in the bar chart and table below illustrates the variability of the fund&amp;#8217;s returns and provides some indication of the risks of investing in the fund by showing changes in the fund&amp;#8217;s performance from year to year. However, past performance (before and after taxes) does not indicate future results. All figures assume dividend reinvestment. Performance for the fund is updated daily, monthly and quarterly and may be obtained at our Web site: www.jhfunds.com/InstitutionalPerformance, or by calling 1-888-972-8696 between 8:30 &lt;font style="FONT-VARIANT: small-caps"&gt;a.m.&lt;/font&gt; and 5:00 &lt;font style="FONT-VARIANT: small-caps"&gt;p.m.&lt;/font&gt;, Eastern Time, on most business days.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Average annual total returns &lt;/b&gt; Performance of a broad-based market index is included for comparison.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;After-tax returns &lt;/b&gt; These reflect the highest individual federal marginal income tax rates in effect as of the date provided and do not reflect any state or local taxes. Your actual after-tax returns may be different. After-tax returns are not relevant to shares held in an IRA, 401(k) or other tax-advantaged investment plan.&lt;br/&gt;&lt;br/&gt;August 18, 1986 is the inception date for the oldest class of shares, Class A shares. Class R6 shares were first offered on September 1, 2011. The returns prior to this date are those of Class A shares that have been recalculated to apply the gross fees and expenses of Class R6 shares.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The following performance information in the bar chart and table below illustrates the variability of the fund&amp;#8217;s returns and provides some indication of the risks of investing in the fund by showing changes in the fund&amp;#8217;s performance from year to year. However, past performance (before and after taxes) does not indicate future results. All figures assume dividend reinvestment. Performance for the fund is updated daily, monthly and quarterly and may be obtained at our Web site: www.jhfunds.com/RetirementPerformance, or by calling 1-888-972-8696 between 8:30 &lt;font style="FONT-VARIANT: small-caps"&gt;a.m.&lt;/font&gt; and 5:00 &lt;font style="FONT-VARIANT: small-caps"&gt;p.m.&lt;/font&gt;, Eastern Time, on most business days.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Calendar year total returns &lt;/b&gt; Calendar year total returns are shown only for Class R1 shares and would be different for other share classes.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;Average annual total returns &lt;/b&gt; Performance of a broad-based market index is included for comparison.&lt;br/&gt;&lt;br/&gt;&lt;b&gt;After-tax returns &lt;/b&gt; These are shown only for Class R1 shares and would be different for other classes. They reflect the highest individual federal marginal income tax rates in effect as of the date provided and do not reflect any state or local taxes. Your actual after-tax returns may be different. After-tax returns are not relevant to shares held in an IRA, 401(k) or other tax-advantaged investment plan.&lt;br/&gt;&lt;br/&gt;August 18, 1986 is the inception date for the oldest class of shares, Class A shares. Class R1 shares were first offered on August 5, 2003. Class R3, Class R4 and Class R5 shares were first offered on May 21, 2009 and Class R2 shares were first offered on March 1, 2012. The returns prior to these dates are those of Class A shares that have been recalculated to apply the gross fees and expenses of Class R1, Class R3, Class R4 and Class R5 shares and the estimated gross fees and expenses of Class R2 shares, as applicable.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:ProspectusDate contextRef="Duration_02Oct2011_01Oct2012">2012-10-01</rr:ProspectusDate>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Past performance &lt;/font&gt;&lt;/div&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Past performance&lt;/font&gt;&lt;/div&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 63, 73); "&gt;Past performance&lt;/font&gt;&lt;/div&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member">&lt;div style="font-family: Arial, Helvetica; background-image: none; background-attachment: scroll; margin-left: 0%; font-size: 16pt; margin-right: 0%; background-position: 0% 0%; background-repeat: repeat repeat; " align="left"&gt;&lt;font style="color: rgb(0, 56, 107); "&gt;Past performance&lt;/font&gt;&lt;/div&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:BarChartDoesNotReflectSalesLoads contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&lt;b&gt;Calendar year total returns &lt;/b&gt; These do not include sales charges and would have been lower if they did.&lt;/font&gt;</rr:BarChartDoesNotReflectSalesLoads>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member" unitRef="USD">665</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member" unitRef="USD">579</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="USD">1542</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001864_MemberProspectusClassBCShares_Member" unitRef="USD">1746</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001865_MemberProspectusClassBCShares_Member" unitRef="USD">1933</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">1466</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000113489_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">1178</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078711_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">1340</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078712_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">992</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078713_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">628</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="USD">733</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001864_MemberProspectusClassBCShares_Member" unitRef="USD">514</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001865_MemberProspectusClassBCShares_Member" unitRef="USD">514</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member" unitRef="USD">170</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member" unitRef="USD">148</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="USD">733</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001864_MemberProspectusClassBCShares_Member" unitRef="USD">814</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001865_MemberProspectusClassBCShares_Member" unitRef="USD">514</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">384</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000113489_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">306</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078711_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">350</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078712_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">249</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078713_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">160</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="USD">541</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001864_MemberProspectusClassBCShares_Member" unitRef="USD">166</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001865_MemberProspectusClassBCShares_Member" unitRef="USD">166</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseBreakpointMinimumInvestmentRequiredAmount decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member" unitRef="USD">100000</rr:ExpenseBreakpointMinimumInvestmentRequiredAmount>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="USD">1542</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001864_MemberProspectusClassBCShares_Member" unitRef="USD">1746</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001865_MemberProspectusClassBCShares_Member" unitRef="USD">1933</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member" unitRef="USD">54</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member" unitRef="USD">47</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="USD">541</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001864_MemberProspectusClassBCShares_Member" unitRef="USD">666</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001865_MemberProspectusClassBCShares_Member" unitRef="USD">266</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">123</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000113489_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">98</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078711_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">112</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078712_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">73</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078713_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">51</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="USD">942</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001864_MemberProspectusClassBCShares_Member" unitRef="USD">887</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001865_MemberProspectusClassBCShares_Member" unitRef="USD">887</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member" unitRef="USD">296</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member" unitRef="USD">258</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="USD">942</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001864_MemberProspectusClassBCShares_Member" unitRef="USD">1087</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001865_MemberProspectusClassBCShares_Member" unitRef="USD">887</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="USD">665</rr:ExpenseExampleYear05>
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  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078713_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0017</rr:OtherExpensesOverAssets>
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  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000648_MemberC000001866_MemberProspectusClassIShares_Member" unitRef="pure">-0.0013</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000648_MemberC000001866_MemberProspectusClassIShares_Member" unitRef="pure">0.0149</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_MemberBarclaysCapitalUS_Member" unitRef="pure">0.0784</rr:AverageAnnualReturnYear01>
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  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000648_MemberC000106430_MemberProspectusClassRSixShares_Member" unitRef="pure">-0.0015</rr:AverageAnnualReturnYear01>
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  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_MemberBarclaysCapitalUS_Member" unitRef="pure">0.0784</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_MemberBeforeTax_Member" unitRef="pure">-0.0295</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="pure">-0.0507</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="pure">-0.0188</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001864_MemberProspectusClassBCShares_MemberBeforeTax_Member" unitRef="pure">-0.0379</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001865_MemberProspectusClassBCShares_MemberBeforeTax_Member" unitRef="pure">0.0002</rr:AverageAnnualReturnYear01>
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  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_MemberBeforeTax_Member" unitRef="pure">0.0157</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">-0.0056</rr:AverageAnnualReturnYear01>
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  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="pure">-0.1085</rr:AnnualReturn2008>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">-0.1126</rr:AnnualReturn2008>
  <rr:Component2OtherExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0013</rr:Component2OtherExpensesOverAssets>
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  <rr:Component2OtherExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078711_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0014</rr:Component2OtherExpensesOverAssets>
  <rr:Component2OtherExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078712_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0013</rr:Component2OtherExpensesOverAssets>
  <rr:Component2OtherExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078713_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0013</rr:Component2OtherExpensesOverAssets>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member" unitRef="pure">0.0488</rr:AnnualReturn2006>
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  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="pure">0.0448</rr:AnnualReturn2006>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0417</rr:AnnualReturn2006>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member" unitRef="pure">-0.0761</rr:BarChartLowestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member" unitRef="pure">-0.0761</rr:BarChartLowestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="pure">-0.0771</rr:BarChartLowestQuarterlyReturn>
  <rr:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">-0.0781</rr:BarChartLowestQuarterlyReturn>
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  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000648_MemberC000001866_MemberProspectusClassIShares_Member" unitRef="pure">0.0476</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000648_MemberC000001866_MemberProspectusClassIShares_Member" unitRef="pure">0.0481</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_MemberBarclaysCapitalUS_Member" unitRef="pure">0.065</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_MemberBeforeTax_Member" unitRef="pure">0.0779</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000648_MemberC000106430_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0497</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000648_MemberC000106430_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0495</rr:AverageAnnualReturnYear05>
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  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_MemberBeforeTax_Member" unitRef="pure">0.0633</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="pure">0.0356</rr:AverageAnnualReturnYear05>
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  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001864_MemberProspectusClassBCShares_MemberBeforeTax_Member" unitRef="pure">0.0627</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001865_MemberProspectusClassBCShares_MemberBeforeTax_Member" unitRef="pure">0.0657</rr:AverageAnnualReturnYear05>
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  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_MemberBeforeTax_Member" unitRef="pure">0.0698</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0433</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0437</rr:AverageAnnualReturnYear05>
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  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078711_MemberProspectusClassROneRThreeRFourRFiveShares_MemberBeforeTax_Member" unitRef="pure">0.0703</rr:AverageAnnualReturnYear05>
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  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_MemberBarclaysCapitalUS_Member" unitRef="pure">0.065</rr:AverageAnnualReturnYear05>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassIShares_Member" unitRef="pure">0.42</rr:PortfolioTurnoverRate>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassRSixShares_Member" unitRef="pure">0.42</rr:PortfolioTurnoverRate>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.42</rr:PortfolioTurnoverRate>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberProspectusClassBCShares_Member" unitRef="pure">0.42</rr:PortfolioTurnoverRate>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member" unitRef="pure">0.0917</rr:AnnualReturn2004>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0926</rr:AnnualReturn2004>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="pure">0.0875</rr:AnnualReturn2004>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0839</rr:AnnualReturn2004>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member" unitRef="pure">0.0597</rr:AnnualReturn2007>
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  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="pure">0.0557</rr:AnnualReturn2007>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0507</rr:AnnualReturn2007>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001866_MemberProspectusClassIShares_Member" unitRef="pure">0.0033</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000106430_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0033</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001863_MemberProspectusClassBCShares_Member" unitRef="pure">0.0033</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001864_MemberProspectusClassBCShares_Member" unitRef="pure">0.0033</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001865_MemberProspectusClassBCShares_Member" unitRef="pure">0.0033</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000001867_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0033</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000113489_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0033</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078711_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0033</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078712_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0033</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000648_MemberC000078713_MemberProspectusClassROneRThreeRFourRFiveShares_Member" unitRef="pure">0.0033</rr:ManagementFeesOverAssets>
  <link:footnoteLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <link:loc xlink:type="locator" xlink:href="#Item_3" xlink:label="DistributionAndService12b1FeesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_DistributionAndService12b1FeesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_DistributionAndService12b1FeesOverAssets">The fund's distributor has contractually agreed to waive 0.10% of Rule 12b-1 fees for Class R4 shares. The current waiver agreement expires on September 30, 2013, unless renewed by mutual agreement of the fund and the distributor based upon a determination that this is appropriate under the circumstances at that time. Excluding this waiver would result in Rule 12b-1 fees of 0.25%.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="DistributionAndService12b1FeesOverAssets" xlink:to="footnote_DistributionAndService12b1FeesOverAssets" />
    <link:loc xlink:type="locator" xlink:href="#Item_4" xlink:label="OtherExpensesOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_OtherExpensesOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_OtherExpensesOverAssets">"Other expenses" have been estimated for the first year of operations of the fund's Class R2 shares.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="OtherExpensesOverAssets" xlink:to="footnote_OtherExpensesOverAssets" />
    <link:loc xlink:type="locator" xlink:href="#Item_2" xlink:label="MaximumDeferredSalesChargeOverOther" />
    <link:footnote xlink:type="resource" xlink:label="footnote_MaximumDeferredSalesChargeOverOther" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_MaximumDeferredSalesChargeOverOther">(on certain purchases, including those of $1 million or more)</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="MaximumDeferredSalesChargeOverOther" xlink:to="footnote_MaximumDeferredSalesChargeOverOther" />
  </link:footnoteLink>
</xbrl>
