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    <measure>pure</measure>
  </unit>
  <unit id="USD">
    <measure>iso4217:USD</measure>
  </unit>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;JHBIX&lt;/font&gt;</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;JHBSX&lt;/font&gt;</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member">JHRBX</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;JHNBX&lt;/font&gt;</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;JHBBX&lt;/font&gt;</dei:TradingSymbol>
  <dei:TradingSymbol contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;JHCBX&lt;/font&gt;</dei:TradingSymbol>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="USD">1004</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="USD">949</rr:ExpenseExampleNoRedemptionYear05>
  <rr:ExpenseExampleNoRedemptionYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="USD">949</rr:ExpenseExampleNoRedemptionYear05>
  <rr:BarChartYearToDateReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
  <rr:BarChartYearToDateReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
  <rr:BarChartYearToDateReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
  <rr:ExpenseExampleByYearCaption contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b " size="2"&gt;&lt;b&gt;Sold&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleByYearCaption>
  <rr:BarChartYearToDateReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member">2012-06-30</rr:BarChartYearToDateReturnDate>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="USD">1004</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="USD">1149</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="USD">949</rr:ExpenseExampleYear05>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="USD">363</rr:ExpenseExampleYear05>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0808</rr:AnnualReturn2003>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0762</rr:AnnualReturn2003>
  <rr:ExpenseExampleHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Expense example&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0763</rr:AnnualReturn2003>
  <rr:ExpenseExampleHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt;Expense example &lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt;Expense example &lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ExpenseExampleHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Expense example&lt;/font&gt;</rr:ExpenseExampleHeading>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleShareholderFeesBondFundClassI column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleShareholderFeesBondFund column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleShareholderFeesBondFundClassR2 column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ExpenseExampleYear05 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="USD">324</rr:ExpenseExampleYear05>
  <rr:ShareholderFeesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleShareholderFeesBondFundClassR6 column period compact * ~&lt;/div&gt;

</rr:ShareholderFeesTableTextBlock>
  <rr:ShareholderFeesCaption contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="2"&gt;&lt;b&gt; Shareholder fees&lt;/b&gt; (%) (fees paid directly from your investment)&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:RiskReturnHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_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;BOND FUND&lt;/font&gt;&lt;/div&gt;&lt;/a&gt;&lt;/div&gt;</rr:RiskReturnHeading>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_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 76% of the average value of its portfolio. &lt;/font&gt;&lt;br/&gt;&lt;br/&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_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;BOND FUND&lt;/font&gt;&lt;/div&gt;&lt;/a&gt;&lt;/div&gt;</rr:RiskReturnHeading>
  <rr:ShareholderFeesCaption contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b " size="2"&gt;&lt;b&gt; Shareholder fees &lt;/b&gt; (%) (fees paid directly from your investment) &lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_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 76% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:OtherExpensesNewFundBasedOnEstimates contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;&amp;#8220;Other expenses&amp;#8221; have been estimated for the first year of operations of the fund&amp;#8217;s Class&amp;nbsp;R2 shares. &lt;/font&gt;</rr:OtherExpensesNewFundBasedOnEstimates>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02Oct2011_01Oct2012S000000646_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_01Oct2012S000000646_MemberProspectusClassRTwoShares_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:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02Oct2011_01Oct2012S000000646_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_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">www.jhfunds.com/RetirementPerformance</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:BarChartReturnsForClassNotOfferedInProspectus contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Class R2 shares of the fund commenced operations on March 1, 2012. Because Class R2 shares of the fund do not have a full calendar year of performance, the returns are those of Class A shares that have been recalculated to apply the estimated gross fees and expenses of Class R2 shares.&lt;/font&gt;</rr:BarChartReturnsForClassNotOfferedInProspectus>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0568</rr:BarChartYearToDateReturn>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0562</rr:BarChartYearToDateReturn>
  <rr:RiskReturnHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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;BOND FUND&lt;/font&gt;&lt;/div&gt;&lt;/a&gt;&lt;/div&gt;</rr:RiskReturnHeading>
  <rr:ShareholderFeesCaption contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b " size="2"&gt;&lt;b&gt; Shareholder fees&lt;/b&gt; (%) (fees paid directly from your investment) &lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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 76% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:RiskReturnHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_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;BOND FUND&lt;/font&gt;&lt;/div&gt;&lt;/a&gt;&lt;/div&gt;</rr:RiskReturnHeading>
  <rr:ShareholderFeesCaption contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="2"&gt;&lt;b&gt;Shareholder fees&lt;/b&gt; (%) (fees paid directly from your investment)&lt;/font&gt;</rr:ShareholderFeesCaption>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;www.jhfunds.com/FundPerformance&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0555</rr:BarChartYearToDateReturn>
  <rr:PortfolioTurnoverTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_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 76% of the average value of its portfolio.&lt;/font&gt;</rr:PortfolioTurnoverTextBlock>
  <rr:PerformanceAvailabilityWebSiteAddress contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;www.jhfunds.com/InstitutionalPerformance&lt;/font&gt;</rr:PerformanceAvailabilityWebSiteAddress>
  <rr:BarChartYearToDateReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0579</rr:BarChartYearToDateReturn>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualFundOperatingExpensesBondFundClassI column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualFundOperatingExpensesBondFund column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualFundOperatingExpensesBondFundClassR2 column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:AnnualReturn2003 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0816</rr:AnnualReturn2003>
  <rr:AnnualFundOperatingExpensesTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualFundOperatingExpensesBondFundClassR6 column period compact * ~&lt;/div&gt;

</rr:AnnualFundOperatingExpensesTableTextBlock>
  <rr:ExpenseBreakpointDiscounts contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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 14 to 16 of the prospectus under &amp;#8220;Sales charge reductions and waivers&amp;#8221; or pages 55 to 58 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:ExpenseBreakpointMinimumInvestmentRequiredAmount decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member" unitRef="USD">100000</rr:ExpenseBreakpointMinimumInvestmentRequiredAmount>
  <rr:BarChartReturnsForClassNotOfferedInProspectus contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;November 9, 1973 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:BarChartReturnsForClassNotOfferedInProspectus>
  <dei:DocumentType contextRef="Duration_02Oct2011_01Oct2012">485BPOS</dei:DocumentType>
  <dei:EntityRegistrantName contextRef="Duration_02Oct2011_01Oct2012">JOHN HANCOCK SOVEREIGN BOND FUND</dei:EntityRegistrantName>
  <dei:DocumentCreationDate contextRef="Duration_02Oct2011_01Oct2012">2012-09-26</dei:DocumentCreationDate>
  <rr:MaximumDeferredSalesChargeOverOther id="Item_2" decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.01</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.05</rr:MaximumDeferredSalesChargeOverOther>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.01</rr:MaximumDeferredSalesChargeOverOther>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_3" decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">-0.0005</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_4" decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="pure">-0.0005</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_5" decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="pure">-0.0005</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="USD">548</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="USD">674</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="USD">274</rr:ExpenseExampleYear01>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_6" decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">-0.0005</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="USD">62</rr:ExpenseExampleYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="USD">548</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="USD">174</rr:ExpenseExampleNoRedemptionYear01>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="USD">1682</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="USD">1884</rr:ExpenseExampleNoRedemptionYear10>
  <rr:ExpenseExampleNoRedemptionYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="USD">2069</rr:ExpenseExampleNoRedemptionYear10>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_7" decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">-0.0005</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="USD">106</rr:ExpenseExampleYear01>
  <rr:OperatingExpensesCaption contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="2"&gt;&lt;b&gt; Annual fund operating expenses &lt;/b&gt;(%)&lt;/font&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="2"&gt;(expenses that you pay each year as a percentage of the value of your investment)&lt;/font&gt;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_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 $10,000 investment at the end of the various time frames indicated. The example assumes a 5% average annual return. The example assumes fund expenses will not change over the periods. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:  &lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleByYearHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="2"&gt;&lt;b&gt; Expenses &lt;/b&gt; &lt;/font&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="2"&gt;($)&lt;/font&gt;</rr:ExpenseExampleByYearHeading>
  <rr:StrategyHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Principal investment strategies&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_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 5.68%.&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;Q3 &amp;#8217;09, 11.07%&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, -7.26%&lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_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:OperatingExpensesCaption contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b " size="2"&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;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_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 $10,000 investment at the end of the various time frames indicated. The example assumes a 5% average annual return. The example assumes fund expenses will not change over the periods. Although your actual costs may be higher or lower, based on these assumptions, your costs would be: &lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleByYearHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b " size="2"&gt;&lt;b&gt;Expenses &lt;/b&gt;($)&lt;/font&gt;</rr:ExpenseExampleByYearHeading>
  <rr:StrategyHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt;Principal investment strategies &lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_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 5.62%. &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; Q3 &amp;#8217;09, 11.00%&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, -7.30% &lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="2"&gt;&lt;b&gt;Average annual total returns (%) &lt;/b&gt;&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="1"&gt;&lt;b&gt;as of 12-31-11&lt;/b&gt;&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceAvailabilityPhone contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size:8pt"&gt;1-888-972-8696&lt;/font&gt;</rr:PerformanceAvailabilityPhone>
  <rr:PerformanceAvailabilityPhone contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">1-888-972-8696</rr:PerformanceAvailabilityPhone>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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 14 to 16 of the prospectus under &amp;#8220;Sales charge reductions and waivers&amp;#8221; or pages 55 to 58 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:OperatingExpensesCaption contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b " size="2"&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;</rr:OperatingExpensesCaption>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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 $10,000 investment in the fund for the time periods indicated (Kept column) and then assuming a redemption of all of your shares at the end of those periods (Sold column). The example assumes a 5% average annual return. The example assumes fund expenses will not change over the periods. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:&lt;/font&gt;</rr:ExpenseExampleNarrativeTextBlock>
  <rr:ExpenseExampleByYearHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b " size="2"&gt;&lt;b&gt;Expenses &lt;/b&gt;($)&lt;/font&gt;</rr:ExpenseExampleByYearHeading>
  <rr:StrategyHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt;Principal investment strategies&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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 5.55%. &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; Q3 &amp;#8217;09, 11.00%&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, -7.29% &lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="2"&gt;&lt;b&gt;Average annual total returns (%) &lt;/b&gt;&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="1"&gt;&lt;b&gt;as of 12-31-11&lt;/b&gt;&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_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:OperatingExpensesCaption contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="2"&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;</rr:OperatingExpensesCaption>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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:PerformanceAvailabilityPhone contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">1-800-225-5291</rr:PerformanceAvailabilityPhone>
  <rr:ExpenseExampleByYearHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="2"&gt;&lt;b&gt;Expenses &lt;/b&gt;($)&lt;/font&gt;</rr:ExpenseExampleByYearHeading>
  <rr:ExpenseExampleNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_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:StrategyHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Principal investment strategies&lt;/font&gt;</rr:StrategyHeading>
  <rr:BarChartClosingTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_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 5.79%. &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; Q3 &amp;#8217;09, 11.14%&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, -7.19% &lt;/font&gt;</rr:BarChartClosingTextBlock>
  <rr:PerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="2"&gt;&lt;b&gt;Average annual total returns &lt;/b&gt;(%)&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="1"&gt;&lt;b&gt;as of 12-31-11&lt;/b&gt;&lt;/font&gt;</rr:PerformanceTableHeading>
  <rr:PerformanceInformationIllustratesVariabilityOfReturns contextRef="Duration_02Oct2011_01Oct2012S000000646_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:PerformanceAvailabilityPhone contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;1-888-972-8696&lt;/font&gt;</rr:PerformanceAvailabilityPhone>
  <rr:MaximumDeferredSalesChargeOverOther decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0</rr:MaximumDeferredSalesChargeOverOther>
  <rr:FeeWaiverOrReimbursementOverAssets id="Item_8" decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">-0.0005</rr:FeeWaiverOrReimbursementOverAssets>
  <rr:BarChartTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualTotalReturnsBondFundClassIBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseExampleYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="USD">55</rr:ExpenseExampleYear01>
  <rr:BarChartTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualTotalReturnsBondFundBarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualTotalReturnsBondFundClassR2BarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:BarChartTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAnnualTotalReturnsBondFundClassR6BarChart column period compact * ~&lt;/div&gt;

</rr:BarChartTableTextBlock>
  <rr:ExpenseNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_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:PerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="2"&gt;&lt;b&gt;Average annual total returns (%) &lt;/b&gt;&lt;/font&gt;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="1"&gt;&lt;b&gt;as of 12-31-11&lt;/b&gt;&lt;/font&gt;</rr:PerformanceTableHeading>
  <dei:EntityCentralIndexKey contextRef="Duration_02Oct2011_01Oct2012">0000045288</dei:EntityCentralIndexKey>
  <dei:DocumentPeriodEndDate contextRef="Duration_02Oct2011_01Oct2012">2012-05-31</dei:DocumentPeriodEndDate>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0106</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0176</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0176</rr:ExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0066</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="USD">767</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="USD">849</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="USD">549</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="USD">206</rr:ExpenseExampleYear03>
  <rr:ExpenseExampleNoRedemptionYear01 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="USD">174</rr:ExpenseExampleNoRedemptionYear01>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0783</rr:AnnualReturn2002>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0278</rr:AnnualReturn2005>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">-0.1161</rr:AnnualReturn2008>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0542</rr:AnnualReturn2011>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0736</rr:AnnualReturn2002>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0238</rr:AnnualReturn2005>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">-0.1192</rr:AnnualReturn2008>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_MemberBeforeTax_Member" unitRef="pure">0.0542</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0335</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0352</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_MemberBarclaysCapitalGovernmentCreditBondIndex_Member" unitRef="pure">0.0874</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_MemberBeforeTax_Member" unitRef="pure">0.066</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0439</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0432</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_MemberBarclaysCapitalGovernmentCreditBondIndex_Member" unitRef="pure">0.0585</rr:AverageAnnualReturnYear10>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0486</rr:AnnualReturn2011>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_MemberBeforeTax_Member" unitRef="pure">0.0015</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">-0.0168</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.001</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_MemberBeforeTax_Member" unitRef="pure">-0.0078</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_MemberBeforeTax_Member" unitRef="pure">0.032</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_MemberBarclaysCapitalGovernmentCreditBondIndex_Member" unitRef="pure">0.0874</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_MemberBeforeTax_Member" unitRef="pure">0.0564</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0361</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0359</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_MemberBeforeTax_Member" unitRef="pure">0.0554</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_MemberBeforeTax_Member" unitRef="pure">0.054</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_MemberBarclaysCapitalGovernmentCreditBondIndex_Member" unitRef="pure">0.0585</rr:AverageAnnualReturnYear10>
  <rr:ObjectiveHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Investment objective&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Fees and expenses&lt;/font&gt;</rr:ExpenseHeading>
  <rr:Component1OtherExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0025</rr:Component1OtherExpensesOverAssets>
  <rr:Component2OtherExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0011</rr:Component2OtherExpensesOverAssets>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0109</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="USD">342</rr:ExpenseExampleYear03>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_MemberBeforeTax_Member" unitRef="pure">0.0481</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.029</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0313</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_MemberBarclaysCapitalGovernmentCreditBondIndex_Member" unitRef="pure">0.0874</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_MemberBeforeTax_Member" unitRef="pure">0.0611</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0407</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0401</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_MemberBarclaysCapitalGovernmentCreditBondIndex_Member" unitRef="pure">0.0585</rr:AverageAnnualReturnYear10>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0737</rr:AnnualReturn2002>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Portfolio turnover&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">-0.1197</rr:AnnualReturn2008>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0481</rr:AnnualReturn2011>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Under normal market conditions, the fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in a diversified portfolio of bonds. These may include, but are not limited to, corporate bonds and debentures, as well as U.S. government and agency securities. Most of these securities are investment grade, although the fund may invest up to 25% of assets in high-yield bonds rated as low as CC by Standard &amp;amp; Poor&amp;#8217;s Corporation (S&amp;amp;P) and Ca by Moody&amp;#8217;s Investors Service, Inc. (Moody&amp;#8217;s) and their unrated equivalents. 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&amp;#8217;s portfolio, the subadviser concentrates on sector allocation, industry allocation and security selection: deciding which types of bonds and industries to emphasize at a given time, and then which individual bonds to buy. When making sector and industry allocations, the subadviser tries to anticipate shifts in the business cycle, using top-down analysis to determine which sectors and industries may benefit over the next 12 months.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;In choosing individual securities, the subadviser uses &lt;font style="WHITE-SPACE: nowrap"&gt;bottom-up&lt;/font&gt; research to find securities that appear comparatively undervalued. The subadviser looks at bonds of all quality levels and maturities from many different issuers, potentially including foreign governments and corporations denominated in U.S. dollars or foreign currencies. The fund will not invest more than 10% of its total assets in securities denominated in foreign currencies.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund intends to keep its exposure to interest-rate movements generally in line with those of its peers. The fund may invest in mortgage-related securities and derivatives, which include futures contracts on securities and indexes; options on futures contracts, securities and indexes; 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. The fund&amp;#8217;s investments in U.S. government and agency securities may or may not be supported by the full faith and credit of the United States.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Under normal circumstances, the fund may not invest more than 10% of its assets in cash or cash equivalents.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_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 &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;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.&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;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;Mortgage-backed and asset-backed securities risk &lt;/b&gt;Different types of mortgage-backed securities and asset-backed securities are subject to different combinations of prepayment, extension, interest-rate &lt;font style="WHITE-SPACE: nowrap"&gt;and/or&lt;/font&gt; other market risks.&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; &lt;br/&gt;&lt;br/&gt;</rr:RiskNarrativeTextBlock>
  <rr:BarChartHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 10pt"&gt;&lt;b&gt;Calendar year total returns&amp;nbsp;&amp;#8212; &lt;/b&gt;&lt;/font&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 10pt"&gt; Class&amp;nbsp;I&amp;nbsp;&lt;/font&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 10pt"&gt;(%) &lt;/font&gt;</rr:BarChartHeading>
  <rr:ObjectiveHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt;Investment objective&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt; Fees and expenses &lt;/font&gt;</rr:ExpenseHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt;Portfolio turnover &lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02Oct2011_01Oct2012S000000646_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:PerformanceTableUsesHighestFederalRate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&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.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Under normal market conditions, the fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in a diversified portfolio of bonds. These may include, but are not limited to, corporate bonds and debentures, as well as U.S. government and agency securities. Most of these securities are investment grade, although the fund may invest up to 25% of assets in high-yield bonds rated as low as CC by Standard &amp;amp; Poor&amp;#8217;s Corporation (S&amp;amp;P) and Ca by Moody&amp;#8217;s Investors Service, Inc. (Moody&amp;#8217;s) and their unrated equivalents. 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&amp;#8217;s portfolio, the subadviser concentrates on sector allocation, industry allocation and security selection: deciding which types of bonds and industries to emphasize at a given time, and then which individual bonds to buy. When making sector and industry allocations, the subadviser tries to anticipate shifts in the business cycle, using top-down analysis to determine which sectors and industries may benefit over the next 12 months.&lt;/font&gt;  &lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;In choosing individual securities, the subadviser uses &lt;font style="WHITE-SPACE: nowrap"&gt;bottom-up&lt;/font&gt; research to find securities that appear comparatively undervalued. The subadviser looks at bonds of all quality levels and maturities from many different issuers, potentially including foreign governments and corporations denominated in U.S. dollars or foreign currencies. The fund will not invest more than 10% of its total assets in securities denominated in foreign currencies.&lt;/font&gt;  &lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund intends to keep its exposure to interest-rate movements generally in line with those of its peers. The fund may invest in mortgage-related securities and derivatives, which include futures contracts on securities and indexes; options on futures contracts, securities and indexes; 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. The fund&amp;#8217;s investments in U.S. government and agency securities may or may not be supported by the full faith and credit of the United States.&lt;/font&gt;  &lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Under normal circumstances, the fund may not invest more than 10% of its assets in cash or cash equivalents.&lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_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;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.&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;br /&gt;&lt;br /&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;br /&gt;&lt;br /&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;br /&gt;&lt;br /&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;br /&gt;&lt;br /&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;br /&gt;&lt;br /&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;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;Mortgage-backed and asset-backed securities risk &lt;/b&gt;Different types of mortgage-backed securities and asset-backed securities are subject to different combinations of prepayment, extension, interest-rate &lt;font style="WHITE-SPACE: nowrap"&gt;and/or&lt;/font&gt; other market risks.&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:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;September 30, 2013&lt;/font&gt;</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:BarChartHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b " size="2"&gt;&lt;b&gt;Calendar year total returns &amp;#8212; Class R2&lt;/b&gt; (%)&lt;/font&gt;</rr:BarChartHeading>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">September 30, 2013</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:RiskLoseMoney contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">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:PerformanceTableUsesHighestFederalRate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&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.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_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:RiskLoseMoney contextRef="Duration_02Oct2011_01Oct2012S000000646_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:BarChartHighestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.11</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_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:BarChartLowestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.1107</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_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:BarChartLowestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ObjectiveHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt;Investment objective&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt;Fees and Expenses &lt;/font&gt;</rr:ExpenseHeading>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt;Portfolio turnover  &lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Under normal market conditions, the fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in a diversified portfolio of bonds. These may include, but are not limited to, corporate bonds and debentures, as well as U.S. government and agency securities. Most of these securities are investment grade, although the fund may invest up to 25% of assets in high-yield bonds rated as low as CC by Standard &amp;amp; Poor&amp;#8217;s Corporation (S&amp;amp;P) and Ca by Moody&amp;#8217;s Investors Service, Inc. (Moody&amp;#8217;s) and their unrated equivalents. 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&amp;#8217;s portfolio, the subadviser concentrates on sector allocation, industry allocation and security selection: deciding which types of bonds and industries to emphasize at a given time, and then which individual bonds to buy. When making sector and industry allocations, the subadviser tries to anticipate shifts in the business cycle, using top-down analysis to determine which sectors and industries may benefit over the next 12 months.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;In choosing individual securities, the subadviser uses &lt;font style="WHITE-SPACE: nowrap"&gt;bottom-up&lt;/font&gt; research to find securities that appear comparatively undervalued. The subadviser looks at bonds of all quality levels and maturities from many different issuers, potentially including foreign governments and corporations denominated in U.S. dollars or foreign currencies. The fund will not invest more than 10% of its total assets in securities denominated in foreign currencies.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund intends to keep its exposure to interest-rate movements generally in line with those of its peers. The fund may invest in mortgage-related securities and derivatives, which include futures contracts on securities and indexes; options on futures contracts, securities and indexes; 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. The fund&amp;#8217;s investments in U.S. government and agency securities may or may not be supported by the full faith and credit of the United States.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Under normal circumstances, the fund may not invest more than 10% of its assets in cash or cash equivalents.&lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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;Fixed-income securities risk &lt;/b&gt;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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.&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;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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;Lower-rated fixed-income securities risk and high-yield securities risk &lt;/b&gt;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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;Mortgage-backed and asset-backed securities risk &lt;/b&gt;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Different types of mortgage-backed securities and asset-backed securities are subject to different combinations of prepayment, extension, interest-rate &lt;font style="WHITE-SPACE: nowrap"&gt;and/or&lt;/font&gt; other market risks. &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;&lt;/font&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&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:BarChartHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b " size="2"&gt;&lt;b&gt;Calendar year total returns &amp;#8212; Class A &lt;/b&gt;(%)&lt;/font&gt;</rr:BarChartHeading>
  <rr:ObjectiveHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Investment objective&lt;/font&gt;</rr:ObjectiveHeading>
  <rr:ExpenseHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Fees and expenses&lt;/font&gt;</rr:ExpenseHeading>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;September 30, 2013&lt;/font&gt;</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:RiskLoseMoney contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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:BarChartHighestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.11</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_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:BarChartLowestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:PortfolioTurnoverHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Portfolio turnover&lt;/font&gt;</rr:PortfolioTurnoverHeading>
  <rr:StrategyNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Under normal market conditions, the fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in a diversified portfolio of bonds. These may include, but are not limited to, corporate bonds and debentures, as well as U.S. government and agency securities. Most of these securities are investment grade, although the fund may invest up to 25% of assets in high-yield bonds rated as low as CC by Standard &amp;amp; Poor&amp;#8217;s Corporation (S&amp;amp;P) and Ca by Moody&amp;#8217;s Investors Service, Inc. (Moody&amp;#8217;s) and their unrated equivalents. 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&amp;#8217;s portfolio, the subadviser concentrates on sector allocation, industry allocation and security selection: deciding which types of bonds and industries to emphasize at a given time, and then which individual bonds to buy. When making sector and industry allocations, the subadviser tries to anticipate shifts in the business cycle, using top-down analysis to determine which sectors and industries may benefit over the next 12 months.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;In choosing individual securities, the subadviser uses bottom-up research to find securities that appear comparatively undervalued. The subadviser looks at bonds of all quality levels and maturities from many different issuers, potentially including foreign governments and corporations denominated in U.S. dollars or foreign currencies. The fund will not invest more than 10% of its total assets in securities denominated in foreign currencies.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;The fund intends to keep its exposure to interest-rate movements generally in line with those of its peers. The fund may invest in mortgage-related securities and derivatives, which include futures contracts on securities and indexes; options on futures contracts, securities and indexes; 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. The fund&amp;#8217;s investments in U.S. government and agency securities may or may not be supported by the full faith and credit of the United States.&lt;/font&gt;&lt;br/&gt;&lt;br/&gt; &lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Under normal circumstances, the fund may not invest more than 10% of its assets in cash or cash equivalents.&lt;/font&gt;</rr:StrategyNarrativeTextBlock>
  <rr:RiskNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_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 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;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.&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;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;Mortgage-backed and asset-backed securities risk &lt;/b&gt;Different types of mortgage-backed securities and asset-backed securities are subject to different combinations of prepayment, extension, interest-rate and/or other market risks.&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:BarChartHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49 " size="2"&gt;&lt;b&gt;Calendar year total returns &amp;#8212; &lt;/b&gt;Class R6 (%)&lt;/font&gt;</rr:BarChartHeading>
  <rr:ExpenseExampleNoRedemptionByYearCaption contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b " size="2"&gt;&lt;b&gt;Kept&lt;/b&gt;&lt;/font&gt;</rr:ExpenseExampleNoRedemptionByYearCaption>
  <rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;September 30, 2013&lt;/font&gt;</rr:FeeWaiverOrReimbursementOverAssetsDateOfTermination>
  <rr:PerformanceTableUsesHighestFederalRate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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:RiskLoseMoney contextRef="Duration_02Oct2011_01Oct2012S000000646_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:PerformanceTableUsesHighestFederalRate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&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.&lt;/font&gt;</rr:PerformanceTableUsesHighestFederalRate>
  <rr:PerformanceTableNotRelevantToTaxDeferred contextRef="Duration_02Oct2011_01Oct2012S000000646_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>
  <rr:BarChartHighestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member">2009-09-30</rr:BarChartHighestQuarterlyReturnDate>
  <rr:BarChartHighestQuarterlyReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.1114</rr:BarChartHighestQuarterlyReturn>
  <rr:LowestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_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:BarChartLowestQuarterlyReturnDate contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member">2008-12-31</rr:BarChartLowestQuarterlyReturnDate>
  <rr:ExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0059</rr:ExpensesOverAssets>
  <rr:ExpenseExampleYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="USD">184</rr:ExpenseExampleYear03>
  <rr:PerformanceTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAverageAnnualTotalReturnsTransposedBondFundClassI column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_MemberBeforeTax_Member" unitRef="pure">0.0543</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0344</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0352</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear01 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_MemberBarclaysCapitalGovernmentCreditBondIndex_Member" unitRef="pure">0.0874</rr:AverageAnnualReturnYear01>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_MemberBeforeTax_Member" unitRef="pure">0.0665</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.046</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0446</rr:AverageAnnualReturnYear10>
  <rr:AverageAnnualReturnYear10 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_MemberBarclaysCapitalGovernmentCreditBondIndex_Member" unitRef="pure">0.0585</rr:AverageAnnualReturnYear10>
  <rr:PerformanceTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAverageAnnualTotalReturnsTransposedBondFund column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:PerformanceTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAverageAnnualTotalReturnsTransposedBondFundClassR2 column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:AnnualReturn2002 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0791</rr:AnnualReturn2002>
  <rr:AnnualReturn2008 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">-0.1152</rr:AnnualReturn2008>
  <rr:AnnualReturn2011 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0543</rr:AnnualReturn2011>
  <rr:PerformanceTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleAverageAnnualTotalReturnsTransposedBondFundClassR6 column period compact * ~&lt;/div&gt;

</rr:PerformanceTableTextBlock>
  <rr:ProspectusDate contextRef="Duration_02Oct2011_01Oct2012">2012-10-01</rr:ProspectusDate>
  <dei:DocumentEffectiveDate contextRef="Duration_02Oct2011_01Oct2012">2012-10-01</dei:DocumentEffectiveDate>
  <dei:AmendmentFlag contextRef="Duration_02Oct2011_01Oct2012">false</dei:AmendmentFlag>
  <rr:MaximumCumulativeSalesChargeOverOther xsi:nil="true" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="pure" />
  <rr:MaximumCumulativeSalesChargeOverOther decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.045</rr:MaximumCumulativeSalesChargeOverOther>
  <rr:MaximumCumulativeSalesChargeOverOther xsi:nil="true" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="pure" />
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0048</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0048</rr:ManagementFeesOverAssets>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0048</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.003</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.01</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0028</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0028</rr:OtherExpensesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0028</rr:OtherExpensesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0101</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0171</rr:NetExpensesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0171</rr:NetExpensesOverAssets>
  <rr:MaximumCumulativeSalesChargeOverOther decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0</rr:MaximumCumulativeSalesChargeOverOther>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0048</rr:ManagementFeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0018</rr:OtherExpensesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0061</rr:NetExpensesOverAssets>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="USD">1682</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="USD">1884</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="USD">2069</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="USD">818</rr:ExpenseExampleYear10>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="USD">767</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_Member" unitRef="USD">549</rr:ExpenseExampleNoRedemptionYear03>
  <rr:ExpenseExampleNoRedemptionYear03 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_Member" unitRef="USD">549</rr:ExpenseExampleNoRedemptionYear03>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0503</rr:AnnualReturn2004>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0491</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0534</rr:AnnualReturn2007>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.2915</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.1323</rr:AnnualReturn2010>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0453</rr:AnnualReturn2004>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0445</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.049</rr:AnnualReturn2007>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_MemberBeforeTax_Member" unitRef="pure">0.075</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0511</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">0.0497</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_MemberBarclaysCapitalGovernmentCreditBondIndex_Member" unitRef="pure">0.0655</rr:AverageAnnualReturnYear05>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.2843</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.1284</rr:AnnualReturn2010>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_MemberBeforeTax_Member" unitRef="pure">0.0604</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0384</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.0383</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001855_MemberProspectusClassBAndCShares_MemberBeforeTax_Member" unitRef="pure">0.0596</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001856_MemberProspectusClassBAndCShares_MemberBeforeTax_Member" unitRef="pure">0.0629</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_MemberBarclaysCapitalGovernmentCreditBondIndex_Member" unitRef="pure">0.0655</rr:AverageAnnualReturnYear05>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;To seek a high level of current income consistent with prudent investment risk.&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0048</rr:ManagementFeesOverAssets>
  <rr:DistributionAndService12b1FeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0025</rr:DistributionAndService12b1FeesOverAssets>
  <rr:OtherExpensesOverAssets id="Item_9" decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0036</rr:OtherExpensesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0104</rr:NetExpensesOverAssets>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_MemberBeforeTax_Member" unitRef="pure">0.0699</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0478</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0465</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_MemberBarclaysCapitalGovernmentCreditBondIndex_Member" unitRef="pure">0.0655</rr:AverageAnnualReturnYear05>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.045</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0235</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0442</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.0485</rr:AnnualReturn2007>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.2844</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.1284</rr:AnnualReturn2010>
  <rr:RiskHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Principal risks &lt;/font&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Past performance &lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_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 &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;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; &lt;br/&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;To seek a high level of current income consistent with prudent investment risk. &lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:PerformanceAdditionalMarketIndex contextRef="Duration_02Oct2011_01Oct2012S000000646_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:RiskHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt;Principal risks &lt;/font&gt;</rr:RiskHeading>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member" unitRef="pure">0.76</rr:PortfolioTurnoverRate>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt;Past performance &lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_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;/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;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;&lt;br /&gt;&lt;br /&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;Class R2 shares of the fund commenced operations on March 1, 2012. Because Class R2 shares of the fund do not have a full calendar year of performance, the returns are those of Class A shares that have been recalculated to apply the estimated gross fees and expenses of Class R2 shares.&lt;/font&gt;</rr:PerformanceNarrativeTextBlock>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member" unitRef="pure">0.76</rr:PortfolioTurnoverRate>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_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:PerformancePastDoesNotIndicateFuture contextRef="Duration_02Oct2011_01Oct2012S000000646_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_01Oct2012S000000646_MemberProspectusClassRTwoShares_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:RiskNotInsuredDepositoryInstitution contextRef="Duration_02Oct2011_01Oct2012S000000646_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:PerformanceAdditionalMarketIndex contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_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:HighestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_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:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">-0.073</rr:BarChartLowestQuarterlyReturn>
  <rr:YearToDateReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_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_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_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:HighestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_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:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001857_MemberProspectusClassIShares_Member" unitRef="pure">-0.0726</rr:BarChartLowestQuarterlyReturn>
  <rr:ObjectivePrimaryTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;To seek a high level of current income consistent with prudent investment risk.&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:RiskHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt;Principal risks&lt;/font&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #00386b" size="4"&gt;Past performance&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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:ObjectivePrimaryTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;To seek a high level of current income consistent with prudent investment risk.&lt;/font&gt;</rr:ObjectivePrimaryTextBlock>
  <rr:PortfolioTurnoverRate decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member" unitRef="pure">0.76</rr:PortfolioTurnoverRate>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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:PerformancePastDoesNotIndicateFuture contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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_01Oct2012S000000646_MemberProspectusClassBAndCShares_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_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_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:HighestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_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:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000001854_MemberProspectusClassBAndCShares_Member" unitRef="pure">-0.0729</rr:BarChartLowestQuarterlyReturn>
  <rr:RiskHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Principal risks&lt;/font&gt;</rr:RiskHeading>
  <rr:BarChartAndPerformanceTableHeading contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;font style="FONT-FAMILY: Arial, Helvetica; color: #003f49" size="4"&gt;Past performance&lt;/font&gt;</rr:BarChartAndPerformanceTableHeading>
  <rr:PerformanceNarrativeTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_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;/font&gt;&lt;br/&gt;&lt;br/&gt;&lt;font style="FONT-FAMILY: Arial, Helvetica; font-size: 8pt"&gt;November 9, 1973 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:PortfolioTurnoverRate decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member" unitRef="pure">0.76</rr:PortfolioTurnoverRate>
  <rr:RiskNotInsuredDepositoryInstitution contextRef="Duration_02Oct2011_01Oct2012S000000646_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:PerformancePastDoesNotIndicateFuture contextRef="Duration_02Oct2011_01Oct2012S000000646_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:PerformanceAdditionalMarketIndex contextRef="Duration_02Oct2011_01Oct2012S000000646_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_01Oct2012S000000646_MemberC000106442_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:HighestQuarterlyReturnLabel contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_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:BarChartLowestQuarterlyReturn decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">-0.0719</rr:BarChartLowestQuarterlyReturn>
  <rr:MaximumCumulativeSalesChargeOverOther decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000113488_MemberProspectusClassRTwoShares_Member" unitRef="pure">0</rr:MaximumCumulativeSalesChargeOverOther>
  <rr:MaximumCumulativeSalesChargeOverOther decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0</rr:MaximumCumulativeSalesChargeOverOther>
  <rr:ManagementFeesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0048</rr:ManagementFeesOverAssets>
  <rr:OtherExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0011</rr:OtherExpensesOverAssets>
  <rr:NetExpensesOverAssets decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0054</rr:NetExpensesOverAssets>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassIShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleExpenseExampleBondFundClassI column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ExpenseExampleYear10 decimals="INF" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="USD">733</rr:ExpenseExampleYear10>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_MemberBeforeTax_Member" unitRef="pure">0.0755</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributions_MemberS000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0531</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012AfterTaxesOnDistributionsAndSales_MemberS000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.051</rr:AverageAnnualReturnYear05>
  <rr:AverageAnnualReturnYear05 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_MemberBarclaysCapitalGovernmentCreditBondIndex_Member" unitRef="pure">0.0655</rr:AverageAnnualReturnYear05>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleExpenseExampleBondFund column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:ExpenseExampleNoRedemptionTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleExpenseExampleNoRedemptionBondFund column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleNoRedemptionTableTextBlock>
  <rr:AnnualReturn2004 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0502</rr:AnnualReturn2004>
  <rr:AnnualReturn2005 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0286</rr:AnnualReturn2005>
  <rr:AnnualReturn2006 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0494</rr:AnnualReturn2006>
  <rr:AnnualReturn2007 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.0537</rr:AnnualReturn2007>
  <rr:AnnualReturn2009 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.2908</rr:AnnualReturn2009>
  <rr:AnnualReturn2010 decimals="4" contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberC000106442_MemberProspectusClassRSixShares_Member" unitRef="pure">0.134</rr:AnnualReturn2010>
  <rr:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRSixShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleExpenseExampleBondFundClassR6 column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <rr:BarChartDoesNotReflectSalesLoads contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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. Calendar year total returns are shown only for Class A shares and would be different for other share classes.&lt;/font&gt;</rr:BarChartDoesNotReflectSalesLoads>
  <rr:PerformanceTableOneClassOfAfterTaxShown contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassBAndCShares_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:ExpenseExampleWithRedemptionTableTextBlock contextRef="Duration_02Oct2011_01Oct2012S000000646_MemberProspectusClassRTwoShares_Member">&lt;div style="display:none"&gt;~ http://www.jhfunds.com/role/ScheduleExpenseExampleBondFundClassR2 column period compact * ~&lt;/div&gt;

</rr:ExpenseExampleWithRedemptionTableTextBlock>
  <link:footnoteLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">
    <link:loc xlink:type="locator" xlink:href="#Item_2" xlink:label="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:loc xlink:type="locator" xlink:href="#Item_3" xlink:label="FeeWaiverOrReimbursementOverAssets" />
    <link:footnote xlink:type="resource" xlink:label="footnote_FeeWaiverOrReimbursementOverAssets" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_FeeWaiverOrReimbursementOverAssets">The adviser has contractually agreed to waive a portion of its management fee and/or reimburse or pay operating expenses of the fund in order to reduce the total annual fund operating expenses for Class A, Class B and Class C shares by 0.05% of the fund's average daily net assets. These fee waivers and/or reimbursements expire on September 30, 2013, unless renewed by mutual agreement of the fund and the adviser based upon a determination that this is appropriate under the circumstances at that time.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="FeeWaiverOrReimbursementOverAssets" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets" />
    <link:loc xlink:type="locator" xlink:href="#Item_4" xlink:label="Item_4_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_4_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_5" xlink:label="Item_5_lbl" />
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="Item_5_lbl" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets" use="optional" priority="0" order="1.0" />
    <link:loc xlink:type="locator" xlink:href="#Item_6" xlink:label="FeeWaiverOrReimbursementOverAssets_2" />
    <link:footnote xlink:type="resource" xlink:label="footnote_FeeWaiverOrReimbursementOverAssets_2" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_FeeWaiverOrReimbursementOverAssets_2">The adviser has contractually agreed to waive a portion of its management fee and/or reimburse or pay operating expenses of the fund in order to reduce the total annual fund operating expenses for Class I shares by 0.05% of the fund's average daily net assets. This fee waiver and/or reimbursement expires on September 30, 2013, unless renewed by mutual agreement of the fund and the adviser based upon a determination that this is appropriate under the circumstances at that time.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="FeeWaiverOrReimbursementOverAssets_2" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_2" />
    <link:loc xlink:type="locator" xlink:href="#Item_8" xlink:label="FeeWaiverOrReimbursementOverAssets_3" />
    <link:footnote xlink:type="resource" xlink:label="footnote_FeeWaiverOrReimbursementOverAssets_3" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_FeeWaiverOrReimbursementOverAssets_3">The adviser has contractually agreed to waive a portion of its management fee and/or reimburse or pay operating expenses of the fund in order to reduce the total annual fund operating expenses for Class R6 shares by 0.05% of the fund's average daily net assets. These fee waivers and/or reimbursements expire on September 30, 2013, unless renewed by mutual agreement of the fund and the adviser based upon a determination that this is appropriate under the circumstances at that time.</link:footnote>
    <link:footnoteArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/fact-footnote" xlink:from="FeeWaiverOrReimbursementOverAssets_3" xlink:to="footnote_FeeWaiverOrReimbursementOverAssets_3" />
    <link:loc xlink:type="locator" xlink:href="#Item_9" 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_7" xlink:label="FeeWaiverOrReimbursementOverAssets_4" />
    <link:footnote xlink:type="resource" xlink:label="footnote_FeeWaiverOrReimbursementOverAssets_4" xlink:role="http://www.xbrl.org/2003/role/footnote" xml:lang="en-US" id="footnote_FeeWaiverOrReimbursementOverAssets_4">The adviser has contractually agreed to waive a portion of its management fee and/or reimburse or pay operating expenses of the fund in order to reduce the total annual fund operating expenses for Class R2 shares by 0.05% of the fund's average daily net assets. These fee waivers and/or reimbursements expire on September 30, 2013, unless renewed by mutual agreement of the fund and the adviser based upon a determination that this is appropriate under the circumstances at that time.</link:footnote>
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  </link:footnoteLink>
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