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Investment Goal</oef:ObjectiveHeading>
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shareholders&#x2019; capital.&lt;/p&gt;</oef:ObjectivePrimaryTextBlock>
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and Expenses of the Fund</oef:ExpenseHeading>
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if you buy, hold and sell shares of the Fund. &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:bold; text-decoration:none;"&gt;You may pay other fees (including on Class 
R6 and Advisor Class shares), such as brokerage commissions and other fees to financial intermediaries, 
which are not reflected in the tables and examples below.&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; You may qualify for sales charge discounts 
in Class A if you and your family invest, or agree to invest in the future, at least $100,000 in Franklin 
Templeton funds and certain other funds distributed through Franklin Distributors, LLC, the Fund&#x2019;s 
distributor. More information about these and other discounts is available from your financial professional 
and under &#x201c;Your Account&#x201d; on page 35 in the Fund&#x2019;s Prospectus and under &#x201c;Buying and Selling Shares&#x201d; 
on page 46 of the Fund&#x2019;s Statement of Additional Information. In addition, more information about sales 
charge discounts and waivers for purchases of shares through specific financial intermediaries is set 
forth in Appendix A &#x2013; &#x201c;Intermediary Sales Charge Discounts and Waivers&#x201d; to the Fund&#x2019;s prospectus.&lt;/span&gt;&lt;/p&gt;</oef:ExpenseNarrativeTextBlock>
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Templeton funds and certain other funds distributed through Franklin Distributors, LLC, the Fund&#x2019;s 
distributor.</oef:ExpenseBreakpointDiscounts>
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      decimals="INF"
      id="ixv-13240"
      unitRef="pure">0</oef:MaximumSalesChargeImposedOnPurchasesOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOfferingPrice
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="_23_"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOfferingPrice
      contextRef="Context_20260430_20260430_C000018346Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="_24_"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOfferingPrice
      contextRef="Context_20260430_20260430_C000018348Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13243"
      unitRef="pure">0.0100</oef:MaximumDeferredSalesChargeOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOfferingPrice
      contextRef="Context_20260430_20260430_C000194409Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13244"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOfferingPrice>
    <oef:MaximumDeferredSalesChargeOverOfferingPrice
      contextRef="Context_20260430_20260430_C000018349Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13245"
      unitRef="pure">0</oef:MaximumDeferredSalesChargeOverOfferingPrice>
    <oef:OperatingExpensesCaption
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13246">Annual 
Fund Operating Expenses (expenses that you pay each year as a percentage of the value 
of your investment)</oef:OperatingExpensesCaption>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13247"
      unitRef="pure">0.0045</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20260430_20260430_C000018346Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13248"
      unitRef="pure">0.0045</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20260430_20260430_C000018348Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13249"
      unitRef="pure">0.0045</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20260430_20260430_C000194409Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13250"
      unitRef="pure">0.0045</oef:ManagementFeesOverAssets>
    <oef:ManagementFeesOverAssets
      contextRef="Context_20260430_20260430_C000018349Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13251"
      unitRef="pure">0.0045</oef:ManagementFeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13252"
      unitRef="pure">0.0025</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Context_20260430_20260430_C000018346Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13253"
      unitRef="pure">0.0010</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Context_20260430_20260430_C000018348Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13254"
      unitRef="pure">0.0065</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Context_20260430_20260430_C000194409Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13255"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:DistributionAndService12b1FeesOverAssets
      contextRef="Context_20260430_20260430_C000018349Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13256"
      unitRef="pure">0</oef:DistributionAndService12b1FeesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13257"
      unitRef="pure">0.0008</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20260430_20260430_C000018346Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13258"
      unitRef="pure">0.0008</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20260430_20260430_C000018348Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13259"
      unitRef="pure">0.0008</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20260430_20260430_C000194409Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13260"
      unitRef="pure">0.0003</oef:OtherExpensesOverAssets>
    <oef:OtherExpensesOverAssets
      contextRef="Context_20260430_20260430_C000018349Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13261"
      unitRef="pure">0.0008</oef:OtherExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13262"
      unitRef="pure">0.0078</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20260430_20260430_C000018346Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13263"
      unitRef="pure">0.0063</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20260430_20260430_C000018348Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13264"
      unitRef="pure">0.0118</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20260430_20260430_C000194409Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13265"
      unitRef="pure">0.0048</oef:ExpensesOverAssets>
    <oef:ExpensesOverAssets
      contextRef="Context_20260430_20260430_C000018349Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13266"
      unitRef="pure">0.0053</oef:ExpensesOverAssets>
    <oef:ExpenseExampleHeading
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13267">Example</oef:ExpenseExampleHeading>
    <oef:ExpenseExampleNarrativeTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-776">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;This 
Example is intended to help you compare the cost of investing in the Fund with the cost of investing 
in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated 
and then redeem all of your shares at the end of the period. The Example also assumes that your investment 
has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual 
costs may be higher or lower, based on these assumptions your costs would be:&lt;/p&gt;</oef:ExpenseExampleNarrativeTextBlock>
    <oef:ExpenseExampleYear01
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13268"
      unitRef="usd">452</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13269"
      unitRef="usd">615</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13270"
      unitRef="usd">792</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13271"
      unitRef="usd">1304</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear01
      contextRef="Context_20260430_20260430_C000018346Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13272"
      unitRef="usd">437</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20260430_20260430_C000018346Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13273"
      unitRef="usd">569</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20260430_20260430_C000018346Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13274"
      unitRef="usd">713</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20260430_20260430_C000018346Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13275"
      unitRef="usd">1132</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear01
      contextRef="Context_20260430_20260430_C000018348Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13276"
      unitRef="usd">220</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20260430_20260430_C000018348Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13277"
      unitRef="usd">375</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20260430_20260430_C000018348Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13278"
      unitRef="usd">650</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20260430_20260430_C000018348Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13279"
      unitRef="usd">1322</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear01
      contextRef="Context_20260430_20260430_C000194409Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13280"
      unitRef="usd">49</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20260430_20260430_C000194409Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13281"
      unitRef="usd">154</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20260430_20260430_C000194409Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13282"
      unitRef="usd">269</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20260430_20260430_C000194409Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13283"
      unitRef="usd">604</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleYear01
      contextRef="Context_20260430_20260430_C000018349Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13284"
      unitRef="usd">54</oef:ExpenseExampleYear01>
    <oef:ExpenseExampleYear03
      contextRef="Context_20260430_20260430_C000018349Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13285"
      unitRef="usd">170</oef:ExpenseExampleYear03>
    <oef:ExpenseExampleYear05
      contextRef="Context_20260430_20260430_C000018349Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13286"
      unitRef="usd">297</oef:ExpenseExampleYear05>
    <oef:ExpenseExampleYear10
      contextRef="Context_20260430_20260430_C000018349Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13287"
      unitRef="usd">665</oef:ExpenseExampleYear10>
    <oef:ExpenseExampleNoRedemptionByYearCaption
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13288">If you do not sell your shares:</oef:ExpenseExampleNoRedemptionByYearCaption>
    <oef:ExpenseExampleNoRedemptionYear01
      contextRef="Context_20260430_20260430_C000018348Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13289"
      unitRef="usd">120</oef:ExpenseExampleNoRedemptionYear01>
    <oef:ExpenseExampleNoRedemptionYear03
      contextRef="Context_20260430_20260430_C000018348Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13290"
      unitRef="usd">375</oef:ExpenseExampleNoRedemptionYear03>
    <oef:ExpenseExampleNoRedemptionYear05
      contextRef="Context_20260430_20260430_C000018348Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13291"
      unitRef="usd">650</oef:ExpenseExampleNoRedemptionYear05>
    <oef:ExpenseExampleNoRedemptionYear10
      contextRef="Context_20260430_20260430_C000018348Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13292"
      unitRef="usd">1322</oef:ExpenseExampleNoRedemptionYear10>
    <oef:PortfolioTurnoverHeading
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13293">  
Portfolio Turnover</oef:PortfolioTurnoverHeading>
    <oef:PortfolioTurnoverTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-967">&lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;The Fund pays transaction costs, such as 
commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover 
rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in 
a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, 
affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate 
was 9.99% of the average value of its portfolio.&lt;/p&gt;</oef:PortfolioTurnoverTextBlock>
    <oef:PortfolioTurnoverRate
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13295"
      unitRef="pure">0.0999</oef:PortfolioTurnoverRate>
    <oef:StrategyHeading
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13296">  
Principal Investment Strategies</oef:StrategyHeading>
    <oef:StrategyNarrativeTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-975">&lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;Under normal market conditions, the Fund 
invests at least 80% of its total assets in investment grade municipal securities whose interest is free 
from federal income taxes, including the federal alternative minimum tax.&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Serif; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; Although the Fund tries 
to invest all of its assets in tax-free securities, it is possible that up to 20% of the Fund's total 
assets may be in securities that pay interest that &lt;/span&gt;&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Serif; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;may 
be subject to the federal alternative minimum tax and in securities that pay taxable interest.&lt;/span&gt;&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;The 
Fund only buys municipal securities rated, at the time of purchase, in one of the top four ratings categories 
by one or more U.S. nationally recognized rating services (or unrated or short-term rated securities 
of comparable credit quality).&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;The Fund may invest in municipal securities issued by U.S. territories. The Fund 
does not necessarily focus its investments in a particular state or territory.&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;Although the investment 
manager will search for investments across a large number of municipal securities that finance different 
types of projects, from time to time, based on economic conditions, the Fund may have significant positions 
in municipal securities that finance similar types of projects.&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;The investment manager selects securities 
that it believes will provide the best balance between risk and return within the Fund&#x2019;s range of allowable 
investments and typically invests with a long-term time horizon. This means it generally holds securities 
in the Fund&#x2019;s portfolio for income purposes, although the investment manager may sell a security at 
any time if it believes it could help the Fund meet its goal. With a focus on income, individual securities 
are considered for purchase or sale based on various factors and considerations, including credit profile, 
risk, structure, pricing, portfolio impact, duration management, restructuring, opportunistic trading 
and tax loss harvesting opportunities.&lt;/p&gt;</oef:StrategyNarrativeTextBlock>
    <oef:StrategyPortfolioConcentration
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-976">Under normal market conditions, the Fund 
invests at least 80% of its total assets in investment grade municipal securities whose interest is free 
from federal income taxes, including the federal alternative minimum tax.</oef:StrategyPortfolioConcentration>
    <fnd:NmRule35d1EightyPctInvstmntPlcyTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13298">Under normal market conditions, the Fund 
invests at least 80% of its total assets in investment grade municipal securities whose interest is free 
from federal income taxes, including the federal alternative minimum tax</fnd:NmRule35d1EightyPctInvstmntPlcyTextBlock>
    <fnd:NmRule35d1TermDfnSmryTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13299">Under normal market conditions, the Fund 
invests at least 80% of its total assets in investment grade municipal securities whose interest is free 
from federal income taxes, including the federal alternative minimum tax</fnd:NmRule35d1TermDfnSmryTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_PrincipalRisks2_S000006760Summary1Member"
      id="ixv-1005">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:13.0pt; font-family:Arial; text-align:left; color:#004C97; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:4.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:normal; text-decoration:none;"&gt; &lt;/span&gt;&lt;a href="" id="x5x2"&gt;&lt;/a&gt;&lt;span style="font-size:13.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:normal; text-decoration:none;"&gt; 
&lt;/span&gt;&lt;span style="font-size:13.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:normal; text-decoration:none;"&gt;Principal Risks&lt;/span&gt;&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;You could lose money by investing in the Fund. Mutual fund 
shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured 
by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. 
government.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_RiskLoseMoneyMember_S000006760Summary1Member"
      id="ixv-13300">You could lose money by investing in the Fund.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_RiskNotInsuredMember_S000006760Summary1Member"
      id="ixv-13301">Mutual fund 
shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured 
by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. 
government.</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_InterestRate2_S000006760Summary1Member"
      id="ixv-1012">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Interest 
Rate:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
 When interest rates rise, debt security prices generally fall. The opposite is also generally true: 
debt security prices rise when interest rates fall. Interest rate changes are influenced by a number 
of factors, including government policy, monetary policy, inflation expectations, perceptions of risk, 
and supply of and demand for bonds. In general, securities with longer maturities or durations are more 
sensitive to interest rate changes. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_Credit2_S000006760Summary1Member"
      id="ixv-1016">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Credit:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;  An issuer of debt securities may fail 
to make interest payments or repay principal when due, in whole or in part. Changes in an issuer's financial 
strength or in a security's or government's credit rating may affect a security's value. A change in 
the credit rating of a municipal bond insurer that insures securities in the Fund&#x2019;s portfolio may affect 
the value of the securities it insures, the Fund&#x2019;s share price and Fund performance. The Fund might 
also be adversely impacted by the inability of an insurer to meet its insurance obligations.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_Liquidity2_S000006760Summary1Member"
      id="ixv-1038">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Liquidity:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
 The trading market for a particular security or type of security or other investments in which the Fund 
invests may become less liquid or even illiquid. Reduced liquidity will have an adverse impact on the 
Fund&#x2019;s ability to sell such securities or other investments when necessary to meet the Fund&#x2019;s liquidity 
needs, which may arise or increase in response to a specific economic event or because the investment 
manager wishes to purchase particular investments or believes that a higher level of liquidity would 
be advantageous. Reduced liquidity will also generally lower the value of such securities or other investments. 
Market prices for such securities or other investments may be relatively volatile.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_TaxLegislativeandPoliticalChanges2_S000006760Summary1Member"
      id="ixv-1042">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Tax Legislative 
and Political Changes:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;  The municipal securities market could be significantly affected by adverse political 
and legislative changes or litigation at the federal or state level. The value of municipal bonds is 
closely tied to the benefits of tax-exempt income to investors. Significant revisions of federal income 
tax laws or regulations revising income tax rates or the tax-exempt character of municipal bonds, or 
even proposed changes and deliberations on this topic by the federal government, could cause municipal 
bond prices to fall. For example, lower federal income tax rates would reduce certain relative advantages 
of owning municipal bonds, and lower state income tax rates could have similar effects. In addition, 
the application of corporate minimum tax rates to financial statement income may have the effect of reducing 
demand for municipal bonds among corporate investors, which may in turn impact municipal bond prices.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_Tax-ExemptSecurities2_S000006760Summary1Member"
      id="ixv-1046">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Tax-Exempt 
Securities:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;  Failure of a municipal security issuer to comply with applicable tax requirements 
may make income paid thereon taxable, resulting in a decline in the security&#x2019;s value. In addition, 
there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current 
federal income tax exemption on municipal securities or otherwise adversely affect the current federal 
or state tax status of municipal securities.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_Market2_S000006760Summary1Member"
      id="ixv-1050">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Market:  &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The market values of 
securities or other investments owned by the Fund will go up or down, sometimes rapidly or unpredictably. 
The market value of a security or other investment may be reduced by market activity or other results 
of supply and demand unrelated to the issuer. This is a basic risk associated with all investments. When 
there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, 
prices tend to rise. In addition, the value of the Fund&#x2019;s investments may go up or down due to general 
market or other conditions that are not specifically related to a particular issuer, such as: real or 
perceived adverse economic changes, including widespread liquidity issues and defaults in one or more 
industries; changes in interest, inflation or exchange rates; unexpected natural and man-made world events, 
such as diseases or disasters; financial, political or social disruptions, including terrorism and war; 
and U.S. trade disputes or other disputes with specific countries that could result in additional tariffs, 
trade barriers and/or investment restrictions in certain securities in those &lt;/span&gt;&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;countries. 
Any of these conditions can adversely affect the economic prospects of many companies, sectors, nations, 
regions and the market in general, in ways that cannot necessarily be foreseen.&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;Ongoing or threatened 
armed conflicts throughout the world have caused and could continue to cause significant market disruptions 
and volatility. The hostilities and sanctions resulting from those hostilities could have a significant 
adverse impact on certain investments of the Fund as well as the Fund&#x2019;s performance and liquidity.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_States2_S000006760Summary1Member"
      id="ixv-1075">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;States:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
 The Fund&#x2019;s portfolio is generally widely diversified among issuers of municipal securities. However, 
to the extent that the Fund has exposure from time to time to the municipal securities of a particular 
state, events in that state may affect the Fund&#x2019;s investments and performance. These events may include 
economic or political policy changes, tax base erosion, unfunded pension and healthcare liabilities, 
constitutional limits on tax increases, budget deficits and other financial difficulties, and changes 
in the credit ratings assigned to municipal issuers of the state. The same is true of events in U.S. 
territories, to the extent that the Fund has exposure to any particular territory at any given time.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_Focus2_S000006760Summary1Member"
      id="ixv-1079">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Focus:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
 The Fund may invest more than 25% of its assets in municipal securities that finance similar types of 
projects, such as utilities, hospitals, higher education and transportation. A change that affects one 
project, such as proposed legislation on the financing of the project, a shortage of the materials needed 
for the project, or a declining need for the project, would likely affect all similar projects, thereby 
increasing market risk.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_Income2_S000006760Summary1Member"
      id="ixv-1083">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Income:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;  The Fund's distributions to shareholders 
may decline when prevailing interest rates fall, when the Fund experiences defaults on debt securities 
it holds or when the Fund realizes a loss upon the sale of a debt security. &lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_Prepayment2_S000006760Summary1Member"
      id="ixv-1087">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Prepayment:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
 Prepayment risk occurs when a debt security can be repaid in whole or in part prior to the security's 
maturity and the Fund must reinvest the proceeds it receives, during periods of declining interest rates, 
in securities that pay a lower rate of interest. Also, if a security has been purchased at a premium, 
the value of the premium would be lost in the event of prepayment. Prepayments generally increase when 
interest rates fall.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_Inflation2_S000006760Summary1Member"
      id="ixv-1091">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Inflation:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:bold; text-decoration:none;"&gt;  &lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;The market price of debt securities generally 
falls as inflation increases because the purchasing power of the future income and repaid principal is 
expected to be worth less when received by the Fund. Debt securities that pay a fixed rather than variable 
interest rate are especially vulnerable to inflation risk because variable-rate debt securities may be 
able to participate, over the long term, in rising interest rates which have historically corresponded 
with long-term inflationary trends.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_BondInsurers2_S000006760Summary1Member"
      id="ixv-1114">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Bond 
Insurers:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;  Market conditions or changes to ratings criteria could adversely impact the 
ratings of municipal bond insurance companies. Downgrades and withdrawal of ratings from municipal bond 
insurers have substantially limited the availability of insurance sought by municipal bond issuers thereby 
reducing the supply of insured municipal securities.&lt;/span&gt;&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;Because of the consolidation among municipal 
bond insurers the Fund is subject to additional risks including the risk that credit risk may be concentrated 
among fewer insurers and the risk that events involving one or more municipal bond insurers could have 
a significant adverse effect on the value of the securities insured by an insurer and on the municipal 
markets as a whole.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_UnratedDebtSecurities2_S000006760Summary1Member"
      id="ixv-1119">&lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Unrated Debt Securities:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;  Certain unrated debt 
securities determined by the investment manager to be of comparable credit quality to rated securities 
which the Fund may purchase may pay a higher interest rate than such rated debt securities and be subject 
to a greater risk of illiquidity or price changes. Less public information and independent credit analysis 
are typically available about unrated securities or issuers, and therefore they may be subject to greater 
risk of default.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_Management2_S000006760Summary1Member"
      id="ixv-1123">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Management:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt;  The Fund is subject to management risk 
because it is an actively managed investment portfolio. The Fund's investment manager applies investment 
techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee 
that these decisions will produce the desired results.&lt;/span&gt;&lt;/p&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_Cybersecurity2_S000006760Summary1Member"
      id="ixv-1127">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; font-style:normal;"&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; color:#004C97; font-weight:bold; text-decoration:none;"&gt;Cybersecurity:&lt;/span&gt;&lt;span style="font-size:9.0pt; font-family:Arial; font-style:normal; font-weight:normal; text-decoration:none;"&gt; 
 Cybersecurity incidents, both intentional and unintentional, may allow an unauthorized party to gain 
access to Fund assets, Fund or customer data (including private shareholder information), or proprietary 
information, cause the Fund, the investment manager, and/or their service providers (including, but not 
limited to, Fund accountants, custodians, sub-custodians, transfer agents and financial intermediaries) 
to suffer data breaches, data corruption or loss of operational functionality or prevent Fund investors 
from purchasing, redeeming or exchanging shares or receiving distributions. The investment manager has 
limited ability to prevent or mitigate cybersecurity incidents affecting third party service providers, 
and such third party service providers may have limited indemnification obligations to the Fund or the 
investment manager. Cybersecurity incidents may result in financial losses to the Fund and its shareholders, 
and substantial costs may be incurred in an effort to prevent or mitigate future cybersecurity incidents. 
Issuers of securities in which the Fund invests are also subject to cybersecurity risks, and the value 
of these securities could decline if the issuers experience cybersecurity incidents.&lt;/span&gt;&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;Because 
technology is frequently changing (including the development of artificial intelligence and machine learning), 
new ways to carry out cyber attacks are always developing. Therefore, there is a chance that some risks 
have not been identified or prepared for, or that an attack may not be detected, which puts limitations 
on the &lt;/p&gt;

&lt;p style="margin-top:revert; margin-bottom:revert;font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;Fund's 
ability to plan for or respond to a cyber attack. Like other funds and business enterprises, the Fund, 
the investment manager, and their service providers are subject to the risk of cyber incidents occurring 
from time to time. The rapid development and increasingly widespread use of artificial intelligence technologies 
could increase the effectiveness of cyber attacks and exacerbate the risks.&lt;/p&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13302">  
Performance</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-1158">&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;The following bar chart and table provide some indication 
of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year 
to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 
10 years or since inception, as applicable, compared with those of a broad measure of market performance. 
The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund 
will perform in the future. You can obtain updated performance information at www.franklintempleton.com 
or by calling (800) DIAL BEN/342-5236.&lt;/p&gt;&lt;p style="margin-top:revert; margin-bottom:revert; font-size:9.0pt; font-family:Arial; text-align:left; font-weight:normal; text-decoration:none;"&gt;Sales charges are not reflected in the bar chart, and if those 
charges were included, returns would be less than those shown.&lt;/p&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13304">The following bar chart and table provide some indication 
of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year 
to year for Class A shares. The table shows how the Fund's average annual returns for 1 year, 5 years, 
10 years or since inception, as applicable, compared with those of a broad measure of market performance.</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13305">The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund 
will perform in the future.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:PerformanceAvailabilityWebSiteAddress
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13306">franklintempleton.com</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:PerformanceAvailabilityPhone
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13307">(800) DIAL BEN/342-5236</oef:PerformanceAvailabilityPhone>
    <oef:BarChartDoesNotReflectSalesLoads
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13308">Sales charges are not reflected in the bar chart, and if those 
charges were included, returns would be less than those shown.</oef:BarChartDoesNotReflectSalesLoads>
    <oef:BarChartHeading
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-13309">Class A Annual Total Returns</oef:BarChartHeading>
    <oef:BarChartClosingTextBlock
      contextRef="Context_20260430_20260430_S000006760Member_S000006760Summary1Member"
      id="ixv-1164">&lt;table cellpadding="0" cellspacing="0" style="border-collapse:collapse" width="100%"&gt;&lt;tr style="font-size:1pt;"&gt;&lt;td style="width:17.33%;"&gt;&#160;&lt;/td&gt;&lt;td style="width:68%;"&gt;&#160;&lt;/td&gt;&lt;td style="width:14.67%;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top; border-bottom:0.5pt; border-bottom-style:solid; border-bottom-color:#A7A7A7; border-top:0.5pt; border-top-style:solid; border-top-color:#A7A7A7;"&gt;&lt;p style="font-size:8.5pt; font-family:Sans-Serif; font-style:normal; text-align:left; font-weight:normal; text-decoration:none;"&gt;Best Quarter: &lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top; border-bottom:0.5pt; border-bottom-style:solid; border-bottom-color:#A7A7A7; border-top:0.5pt; border-top-style:solid; border-top-color:#A7A7A7;"&gt;&lt;p style="font-size:8.5pt; font-family:Sans-Serif; font-style:normal; text-align:right; font-weight:normal; text-decoration:none;"&gt;2023, Q4&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top; border-bottom:0.5pt; border-bottom-style:solid; border-bottom-color:#A7A7A7; border-top:0.5pt; border-top-style:solid; border-top-color:#A7A7A7;"&gt;&lt;p style="font-size:8.5pt; font-family:Sans-Serif; font-style:normal; text-align:right; font-weight:normal; text-decoration:none;"&gt;8.15%&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top; border-bottom:0.5pt; border-bottom-style:solid; border-bottom-color:#A7A7A7; border-top:0.5pt; border-top-style:solid; border-top-color:#A7A7A7;"&gt;&lt;p style="font-size:8.5pt; font-family:Sans-Serif; font-style:normal; text-align:left; font-weight:normal; text-decoration:none;"&gt;Worst Quarter: &lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top; border-bottom:0.5pt; border-bottom-style:solid; border-bottom-color:#A7A7A7; border-top:0.5pt; border-top-style:solid; border-top-color:#A7A7A7;"&gt;&lt;p style="font-size:8.5pt; font-family:Sans-Serif; font-style:normal; text-align:right; font-weight:normal; text-decoration:none;"&gt;2022, Q1&lt;/p&gt;&lt;/td&gt;&lt;td style="vertical-align:top; border-bottom:0.5pt; border-bottom-style:solid; border-bottom-color:#A7A7A7; border-top:0.5pt; border-top-style:solid; border-top-color:#A7A7A7;"&gt;&lt;p style="font-size:8.5pt; font-family:Sans-Serif; font-style:normal; text-align:right; font-weight:normal; text-decoration:none;"&gt;-6.81%&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;table cellpadding="2" cellspacing="0" style="border-collapse:collapse" width="100%"&gt;&lt;tr style="font-size:1pt;"&gt;&lt;td style="width:100%;"&gt;&#160;&lt;/td&gt;&lt;/tr&gt;&lt;tr&gt;&lt;td style="vertical-align:top; border-bottom:0.5pt; border-bottom-style:solid; border-bottom-color:#A7A7A7; font-size:1pt;"&gt;&lt;p style="font-size:8.5pt; font-family:Sans-Serif; font-style:normal; text-align:left; font-weight:normal; text-decoration:none;"&gt;As of June 30, 2026, the 
Fund&#x2019;s year-to-date return was 2.91%.&lt;/p&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;
</oef:BarChartClosingTextBlock>
    <oef:HighestQuarterlyReturnLabel
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      id="ixv-13310">Best Quarter</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      id="ixv-13311">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13312"
      unitRef="pure">0.0815</oef:BarChartHighestQuarterlyReturn>
    <oef:LowestQuarterlyReturnLabel
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      id="ixv-13313">Worst Quarter</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      id="ixv-13314">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:BarChartLowestQuarterlyReturn
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      decimals="INF"
      id="ixv-13315"
      unitRef="pure">-0.0681</oef:BarChartLowestQuarterlyReturn>
    <oef:YearToDateReturnLabel
      contextRef="Context_20260430_20260430_C000199717Member_S000006760Member_S000006760Summary1Member"
      id="ixv-13316">As of June 30, 2026, the 
Fund&#x2019;s year-to-date return was 2.91%.</oef:YearToDateReturnLabel>
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31, 2025</oef:PerformanceTableHeading>
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        <link:footnote id="fn1_" xlink:label="fn1_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:7.0pt; font-family:Sans-Serif; font-style:normal; text-align:left; font-weight:normal; text-decoration:none;">There 
is a 1% contingent deferred sales charge that applies to investments of $250,000 or more (see "Investments 
of $250,000 or More" under "Choosing a Share Class") and purchases by certain retirement plans without 
an initial sales charge on shares sold within 18 months of purchase.</xhtml:p></link:footnote>
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        <link:footnote id="fn2_" xlink:label="fn2_" xlink:role="http://www.xbrl.org/2003/role/footnote" xlink:type="resource" xml:lang="en-US"><xhtml:p style="font-size:7.0pt; font-family:Sans-Serif; font-style:normal; text-align:left; font-weight:normal; text-decoration:none;">Since inception August 1, 2017.</xhtml:p></link:footnote>
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