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&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs of a $10,000&lt;br/&gt;investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;51&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.49&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2026_C000006121Member"
      decimals="INF"
      id="h_1_920dc08a_616e_4419_afe3_33bbacbe550d"
      unitRef="USD">51</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2026_C000006121Member"
      decimals="4"
      id="h_2_635c999f_b28f_453a_b347_3ff54e207669"
      unitRef="pure">0.0049</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2026_C000006121Member"
      id="t_14_d1fbef4c_730c_d5ec_554c_229a9140d8d0">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 0px;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt; &lt;/div&gt; &lt;ul style="counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid-page; page-break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the reporting period ended June 30, 2026, the Fund&#x2019;s Institutional Shares returned 6.36%.&lt;/div&gt; &lt;/li&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg Municipal Bond Index, returned 7.03%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;The Fund&#x2019;s positive return reflected contributions from both income and positive price performance. Positions in longer-term bonds made meaningful contributions to absolute performance, led by those in the 12- to 15-year, 15- to 18-year, and 20- to 25-year areas. From a quality perspective, holdings in AA and A rated bonds contributed the most. Transportation, tax-backed states, and corporate-backed securities were the largest contributors at the sector level.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;At a time of positive market performance, all major segments of the Fund posted gains. A few individual securities finished with losses, however, most notably high-yield issues in the transportation and charter schools sectors.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;&lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt;&lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2026_C000006121Member"
      id="t_15_e965e4f9_1956_4c3e_adf6_60016e228728">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 5pt;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;Fund performance&lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Cumulative performance: July 1, 2016 through June 30, 2026&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt; text-align: center;"&gt;
&lt;img alt="Fund Performance - Growth of 10K" src="g166521chartimages_6938521.jpg" style="width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; padding: 0px; margin: 0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2026_C000006121Member"
      id="t_16_c9b9b6e2_740c_528c_1f2f_71ca7ea40990">
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;6.36&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;0.64&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.91&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;"&gt;Bloomberg Municipal Bond Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;7.03&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.05&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;2.15&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_C000006121Member"
      id="t_21_84bc72cd_1554_ece8_c159_0777c3a89e2e">Institutional Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_C000006121Member"
      decimals="4"
      id="h_3_9b04b07d_9ac5_41ca_a244_01c5349ec3af"
      unitRef="pure">0.0636</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_C000006121Member"
      decimals="4"
      id="h_4_559dbea9_a0d2_4f1c_8c71_f619a9013529"
      unitRef="pure">0.0064</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_C000006121Member"
      decimals="4"
      id="h_5_1d80310d_070e_40c7_bab2_0ab456018420"
      unitRef="pure">0.0191</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      id="t_22_3e873edf_1c32_7cda_f04d_99087dc0a03e">Bloomberg Municipal Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_6_3e3783d6_108c_4bea_b60d_8a59915e5f4d"
      unitRef="pure">0.0703</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_7_ed7cc193_76a4_4949_a13a_e2792637d67e"
      unitRef="pure">0.0105</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_8_666d3321_0881_4887_a7ad_5030eadf458a"
      unitRef="pure">0.0215</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2026_C000006121Member"
      id="t_17_27707a4e_6617_b824_3da6_48cdbe2adadc">
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;5,768,861,371&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;519&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;21,057,679&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;54&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260630_C000006121Member"
      decimals="INF"
      id="h_9_045b6c90_ef5d_4134_b45e_04d2f8b8a2dd"
      unitRef="USD">5768861371</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260630_C000006121Member"
      decimals="INF"
      id="h_10_f7006daa_402e_47e7_9395_c4f31da0ab92"
      unitRef="Holding">519</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2026_C000006121Member"
      decimals="INF"
      id="h_11_f6a9e7b4_0fbe_44bb_828e_bd06d4847ee2"
      unitRef="USD">21057679</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2026_C000006121Member"
      decimals="4"
      id="h_12_5b07d535_344f_4b92_a186_9f0638d8fe69"
      unitRef="pure">0.54</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2026_C000006121Member"
      id="t_18_4c6ba476_a891_aac0_840e_7cbe2f14ff38">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2026_C000006121Member"
      id="t_19_935bffa4_ea8f_d7aa_0ccf_cbadd96228df">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2026_C000006121Member"
      id="t_20_049818c6_6b37_fd90_4060_9b94ca8e93d0">Visit &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2026_C000006121Member"
      id="t_9_e710649b_cfec_49ad_8108_fa91b03ff4b5"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of June 30, 2026)&lt;/div&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;&lt;strong&gt;Sector&lt;/strong&gt;&lt;strong&gt; allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Sector&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Transportation&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;20.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;State&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;18.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Corporate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;15.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Utilities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;County/City/Special District/School District&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Health&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;9.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Housing&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Education&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;4.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Tobacco&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;&lt;span style="white-space: nowrap;"&gt;Other&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Credit quality allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Credit Rating&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AAA/Aaa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;14.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AA/Aa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;55.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;A&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;19.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BBB/Baa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BB/Ba&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;B&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;N/R&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;6.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Ten largest sectors are presented. Additional sectors are found in Other.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
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      id="h_13_f4fa4fb9_33dc_4dab_b39c_dee8355a18ee"
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      id="h_25_c1bf4c58_ccd9_4109_8132_1c2d59c13674"
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    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006121Member_StandardPoorsARatingMember"
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      id="h_26_b1a50803_e673_4f10_a52c_816852db7f58"
      unitRef="pure">0.190</oef:PctOfTotalInv>
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      contextRef="TI20260630_C000006121Member_StandardPoorsBBBRatingMember"
      decimals="4"
      id="h_27_d1043ecd_0e1a_4c6e_9d0b_b6154ea5262f"
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    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006121Member_StandardPoorsBBRatingMember"
      decimals="4"
      id="h_28_5caeef08_c2ba_4f30_84f0_9c7b36b24c6d"
      unitRef="pure">0.004</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006121Member_StandardPoorsBRatingMember"
      decimals="4"
      id="h_29_45d581ca_e5f7_401d_a6e4_1ddeccd6ff4c"
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      id="h_30_bc4f4669_4f25_432c_a0bc_c934687d61b5"
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    <oef:CreditQualityExplanationTextBlock
      contextRef="FY2026_C000006121Member"
      id="t_24_1873cb39_54ec_a9ac_e412_31e458abcadd">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</oef:CreditQualityExplanationTextBlock>
    <oef:CreditRatingsSelectionTextBlock
      contextRef="FY2026_C000006121Member"
      id="t_25_35120b1b_efeb_73cc_6fa6_eb710fc8e4cd">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc.</oef:CreditRatingsSelectionTextBlock>
    <oef:FundName
      contextRef="FY2026_C000100249Member"
      id="t_19_aa476a56_8977_2ef7_08ef_4898d502df88">BlackRock National Municipal Fund</oef:FundName>
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      id="t_20_8b9d6e7c_827b_b53c_2678_395e0f10181a">Service Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2026_C000100249Member"
      id="t_21_9d04d18e_f4b0_6d92_52b3_6ef68b8f65a8">BNMSX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2026_C000100249Member"
      id="t_10_181d88c3_0e6e_42ed_b47f_05074b967549">This annual shareholder report contains important information about BlackRock National Municipal Fund (the &#x201c;Fund&#x201d;) for the period of July 1, 2025 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2026_C000100249Member"
      id="t_11_ed2396d0_3707_4f35_bf2a_b3d7df1c8f1b">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2026_C000100249Member"
      id="t_12_70963e28_1b68_4aa6_a555_e39e5b378ce6">You can find additional information about the Fund at &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2026_C000100249Member"
      id="t_13_fa37c7c3_5a40_4061_b0dc_c103c3d4ae47">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2026_C000100249Member"
      id="t_14_a5df8427_5520_402b_86cf_85826df420a9">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2026_C000100249Member"
      id="t_22_0a2f2e73_1360_bd73_86e4_86bba93428ed">&lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs of a $10,000&lt;br/&gt;investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Service Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;76&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.74&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2026_C000100249Member"
      decimals="INF"
      id="h_31_c5ce869d_634f_4fd4_898c_f4a5bc3512b9"
      unitRef="USD">76</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2026_C000100249Member"
      decimals="4"
      id="h_32_38151146_26d0_40b8_b744_dce30b66f5ae"
      unitRef="pure">0.0074</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2026_C000100249Member"
      id="t_23_31a87ae4_47f3_4bbf_2de7_4fa10b043240">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 0px;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt; &lt;/div&gt; &lt;ul style="counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid-page; page-break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the reporting period ended June 30, 2026, the Fund&#x2019;s Service Shares returned 6.10%.&lt;/div&gt; &lt;/li&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg Municipal Bond Index, returned 7.03%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;The Fund&#x2019;s positive return reflected contributions from both income and positive price performance. Positions in longer-term bonds made meaningful contributions to absolute performance, led by those in the 12- to 15-year, 15- to 18-year, and 20- to 25-year areas. From a quality perspective, holdings in AA and A rated bonds contributed the most. Transportation, tax-backed states, and corporate-backed securities were the largest contributors at the sector level.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;At a time of positive market performance, all major segments of the Fund posted gains. A few individual securities finished with losses, however, most notably high-yield issues in the transportation and charter schools sectors.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;&lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt;&lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2026_C000100249Member"
      id="t_24_9e25dd28_e382_e6bf_eb77_7a27e5cd9abb">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 5pt;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;Fund performance&lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Cumulative performance: July 1, 2016 through June 30, 2026&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt; text-align: center;"&gt;
&lt;img alt="Fund Performance - Growth of 10K" src="g166521chartimages_6938513.jpg" style="width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; padding: 0px; margin: 0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
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&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Service Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;6.10&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;0.39&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.66&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;"&gt;Bloomberg Municipal Bond Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;7.03&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.05&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;2.15&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_C000100249Member"
      id="t_30_090a9f30_379b_f055_59b5_6cbfe2cfd988">Service Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_C000100249Member"
      decimals="4"
      id="h_33_7a221c39_3833_4857_9e79_6093f75fe5aa"
      unitRef="pure">0.0610</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_C000100249Member"
      decimals="4"
      id="h_34_c330cdbf_06fc_46e5_a20a_151597b6ee15"
      unitRef="pure">0.0039</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_C000100249Member"
      decimals="4"
      id="h_35_2a13d2e3_5175_4cc8_8603_cdbf0478d013"
      unitRef="pure">0.0166</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      id="t_31_cc7e106f_88f4_86f2_d2ab_2f9fa65b534a">Bloomberg Municipal Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_36_e7e46853_ead5_4a79_87db_053b76d74175"
      unitRef="pure">0.0703</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_37_0984d4f2_f381_4278_beb5_f2ae62e027e9"
      unitRef="pure">0.0105</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_38_ca040c71_7e8b_4a18_86c2_5509adb57f60"
      unitRef="pure">0.0215</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2026_C000100249Member"
      id="t_26_f3c78cec_4c26_e597_1c6e_ef8618882418">
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;5,768,861,371&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;519&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;21,057,679&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;54&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260630_C000100249Member"
      decimals="INF"
      id="h_39_599783d8_bd19_44f3_9b2a_f7b9941382f7"
      unitRef="USD">5768861371</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260630_C000100249Member"
      decimals="INF"
      id="h_40_c88e55b8_30e5_45e1_8eb0_ce4aa9517235"
      unitRef="Holding">519</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2026_C000100249Member"
      decimals="INF"
      id="h_41_3dac15fc_06ef_4f6c_b302_408a820b77cd"
      unitRef="USD">21057679</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2026_C000100249Member"
      decimals="4"
      id="h_42_9deaff6c_0d08_4d66_a93b_808304111952"
      unitRef="pure">0.54</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2026_C000100249Member"
      id="t_27_265d1e16_c9c7_0aa9_785c_30ce78e05ad0">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2026_C000100249Member"
      id="t_28_55195764_4138_2943_1036_dd8ff135e73c">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2026_C000100249Member"
      id="t_29_a01dcec5_6171_c98a_5851_be573ae9c7c6">Visit &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2026_C000100249Member"
      id="t_18_4fb3ca59_94fc_439b_877d_b80c54e0df7a"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of June 30, 2026)&lt;/div&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;&lt;strong&gt;Sector&lt;/strong&gt;&lt;strong&gt; allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Sector&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Transportation&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;20.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;State&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;18.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Corporate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;15.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Utilities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;County/City/Special District/School District&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Health&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;9.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Housing&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Education&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;4.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Tobacco&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;&lt;span style="white-space: nowrap;"&gt;Other&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Credit quality allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Credit Rating&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AAA/Aaa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;14.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AA/Aa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;55.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;A&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;19.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BBB/Baa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BB/Ba&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;B&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;N/R&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;6.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Ten largest sectors are presented. Additional sectors are found in Other.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
    <oef:PctOfTotalInv
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      decimals="4"
      id="h_43_7352ed19_8ce3_4fd0_8ade_d39e551ac0b1"
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      id="h_44_e5985218_4417_4ef1_928b_4b3fe1a48d4d"
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      id="h_45_25144445_e67b_4693_9f44_0aabad8d6027"
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      id="h_46_5f0b786d_de70_4b99_9011_3c198f9e9e48"
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      id="h_47_aa4b2928_cd40_4724_a14f_508c0f3f7710"
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      id="h_50_3ed37439_a7d8_4c2f_b8c5_967aec466b0e"
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      id="h_51_e3d969fc_aa1c_461a_94c3_da6362afefc1"
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      contextRef="TI20260630_C000100249Member_TobaccoMember"
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      id="h_52_1c137b71_27b9_4dfc_a902_51702cd24f20"
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      id="h_53_63ec0d71_5c1e_42cc_a373_0b33c0684017"
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      id="h_54_1e7dcb0c_1c02_4d19_b5c9_72e243616ad2"
      unitRef="pure">0.145</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000100249Member_StandardPoorsAARatingMember"
      decimals="4"
      id="h_55_624b64f0_4243_4e7b_8d93_bbdce6226aee"
      unitRef="pure">0.554</oef:PctOfTotalInv>
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      contextRef="TI20260630_C000100249Member_StandardPoorsARatingMember"
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      id="h_56_13fe33a4_d59e_4275_9892_9fba00c142d9"
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      id="h_57_b75fa6b5_588e_4055_9764_67415d8d9161"
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    <oef:PctOfTotalInv
      contextRef="TI20260630_C000100249Member_StandardPoorsBBRatingMember"
      decimals="4"
      id="h_58_e576355c_94c7_41f8_bcaa_b9828f96c1e6"
      unitRef="pure">0.004</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000100249Member_StandardPoorsBRatingMember"
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      id="h_59_75a34741_370f_4284_a07a_37fdb5dbd309"
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    <oef:CreditQualityExplanationTextBlock
      contextRef="FY2026_C000100249Member"
      id="t_33_459920aa_0a46_bb73_73f4_4d88cecf3097">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</oef:CreditQualityExplanationTextBlock>
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      contextRef="FY2026_C000100249Member"
      id="t_34_e2f089d1_6ae3_8dfb_04c7_9fa15f96d6d1">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc.</oef:CreditRatingsSelectionTextBlock>
    <oef:FundName
      contextRef="FY2026_C000006118Member"
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      contextRef="FY2026_C000006118Member"
      id="t_19_8716e113_47db_4297_a78a_e4cfd78b97fa">This annual shareholder report contains important information about BlackRock National Municipal Fund (the &#x201c;Fund&#x201d;) for the period of July 1, 2025 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2026_C000006118Member"
      id="t_20_49f75f8c_4fb1_42f3_bbae_58c4bb2da369">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2026_C000006118Member"
      id="t_21_4a619aa2_9428_45bc_b08d_42d769b492e5">You can find additional information about the Fund at &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2026_C000006118Member"
      id="t_22_1e84c24b_f1e4_42d4_a8bb_d150856ee503">blackrock.com/fundreports</oef:AddlInfoWebsite>
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      id="t_23_5cae93fb_b050_4070_91d7_12f2dc7b4abd">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
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      contextRef="FY2026_C000006118Member"
      id="t_31_1336a0e9_330c_9aa3_43fa_ea6ed44a8651"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs of a $10,000&lt;br/&gt;investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;76&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.74&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2026_C000006118Member"
      decimals="INF"
      id="h_61_a5919f99_797a_4763_9ce8_b110cf129ae7"
      unitRef="USD">76</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2026_C000006118Member"
      decimals="4"
      id="h_62_bced9b77_be7c_41b2_b4f0_b07c6f7e4a9e"
      unitRef="pure">0.0074</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2026_C000006118Member"
      id="t_32_7f712466_4102_663f_7929_fb16aac1cafc"> &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 0px;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt; &lt;/div&gt; &lt;ul style="counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid-page; page-break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the reporting period ended June 30, 2026, the Fund&#x2019;s Investor A Shares returned 6.10%.&lt;/div&gt; &lt;/li&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg Municipal Bond Index, returned 7.03%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;The Fund&#x2019;s positive return reflected contributions from both income and positive price performance. Positions in longer-term bonds made meaningful contributions to absolute performance, led by those in the 12- to 15-year, 15- to 18-year, and 20- to 25-year areas. From a quality perspective, holdings in AA and A rated bonds contributed the most. Transportation, tax-backed states, and corporate-backed securities were the largest contributors at the sector level.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;At a time of positive market performance, all major segments of the Fund posted gains. A few individual securities finished with losses, however, most notably high-yield issues in the transportation and charter schools sectors.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;&lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt;&lt;/div&gt; &lt;/div&gt; </oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2026_C000006118Member"
      id="t_33_3a69a858_c8c5_c011_4e74_bc967c1efe08"> &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 5pt;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;Fund performance&lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Cumulative performance: July 1, 2016 through June 30, 2026&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt; text-align: center;"&gt;
&lt;img alt="Fund Performance - Growth of 10K" src="g166521chartimages_6938520.jpg" style="width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; padding: 0px; margin: 0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt; </oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2026_C000006118Member"
      id="t_34_cd351e3a_0846_c890_400f_b1f1f9365d5e"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;6.10&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;0.39&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.66&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Investor A Shares (with sales charge)&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.59&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;(0.48&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.22&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;"&gt;Bloomberg Municipal Bond Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;7.03&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.05&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;2.15&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_C000006118Member_WithoutSalesLoadMember"
      id="t_35_51d565f8_d136_1603_ce42_245079c239f0">Investor A Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_C000006118Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_63_f215590b_bdb4_40a0_bd9b_bf19e67e65d0"
      unitRef="pure">0.0610</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_C000006118Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_64_841323d1_10ba_4f76_be0c_4b8097920145"
      unitRef="pure">0.0039</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_C000006118Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_65_eae427fc_089e_4ec5_b0c8_bcfc09c7b603"
      unitRef="pure">0.0166</oef:AvgAnnlRtrPct>
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      contextRef="FY2026_C000006118Member"
      id="t_36_098e3b07_ee18_bb4e_a2f1_b898c14b14f6">Investor A Shares (with sales charge)</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_C000006118Member"
      decimals="4"
      id="h_66_d709f58e_0d2d_4972_bc1f_aaa26e1be483"
      unitRef="pure">0.0159</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_C000006118Member"
      decimals="4"
      id="h_67_d72fd9f6_3cb6_41cd_bb57_3cab8c28936d"
      unitRef="pure">-0.0048</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_C000006118Member"
      decimals="4"
      id="h_68_096fca14_1ace_4598_bf86_73c043854898"
      unitRef="pure">0.0122</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      id="t_37_e2d2e38d_9ece_3f51_b017_6225f3c67a1d">Bloomberg Municipal Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_69_b726544b_7892_46c2_b106_a64f9c12967e"
      unitRef="pure">0.0703</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_70_b9f9f138_42bb_4ef7_a732_e10089cf9837"
      unitRef="pure">0.0105</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_71_0213187b_c766_452a_a214_383f2d7d3eea"
      unitRef="pure">0.0215</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2026_C000006118Member"
      id="t_38_aa0baef6_b563_5139_3e73_2550a031f502"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;5,768,861,371&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;519&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;21,057,679&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;54&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260630_C000006118Member"
      decimals="INF"
      id="h_72_cfa7f807_1507_47e8_aa83_835dd4079ef0"
      unitRef="USD">5768861371</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260630_C000006118Member"
      decimals="INF"
      id="h_73_1c23f62f_94b8_453a_a706_218a82f5df97"
      unitRef="Holding">519</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2026_C000006118Member"
      decimals="INF"
      id="h_74_33427909_5d9d_4002_a658_70bea88be173"
      unitRef="USD">21057679</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2026_C000006118Member"
      decimals="4"
      id="h_75_c63273bc_cac1_471c_83f3_6995d5cc87e4"
      unitRef="pure">0.54</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2026_C000006118Member"
      id="t_39_a48cb8c0_66a3_65ec_f2dd_aecfc08cada1">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2026_C000006118Member"
      id="t_40_12ee5a10_1779_a7c6_3bb0_64f74c4bee3a">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2026_C000006118Member"
      id="t_41_dfceba18_9b9b_4a10_a2a5_408f2c20f5cb">Visit &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2026_C000006118Member"
      id="t_27_cc30508e_e9b5_4ef1_9f5e_39f2d7eb9d33"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of June 30, 2026)&lt;/div&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;&lt;strong&gt;Sector&lt;/strong&gt;&lt;strong&gt; allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Sector&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Transportation&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;20.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;State&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;18.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Corporate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;15.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Utilities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;County/City/Special District/School District&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Health&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;9.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Housing&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Education&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;4.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Tobacco&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;&lt;span style="white-space: nowrap;"&gt;Other&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Credit quality allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Credit Rating&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AAA/Aaa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;14.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AA/Aa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;55.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;A&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;19.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BBB/Baa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BB/Ba&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;B&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;N/R&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;6.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Ten largest sectors are presented. Additional sectors are found in Other.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
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    <oef:CreditQualityExplanationTextBlock
      contextRef="FY2026_C000006118Member"
      id="t_42_b09794e8_d444_6054_a868_30aa5c751ae7">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</oef:CreditQualityExplanationTextBlock>
    <oef:CreditRatingsSelectionTextBlock
      contextRef="FY2026_C000006118Member"
      id="t_43_58bd6212_79a5_67ef_38b3_5260c7a2f787">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc.</oef:CreditRatingsSelectionTextBlock>
    <oef:FundName
      contextRef="FY2026_C000038033Member"
      id="t_37_6067487c_f741_5ba2_6642_8f93d84d54dc">BlackRock National Municipal Fund</oef:FundName>
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      contextRef="FY2026_C000038033Member"
      id="t_38_7a882fd7_05bc_09c8_8e40_ec0348c16e65">Investor C Shares</oef:ClassName>
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      contextRef="FY2026_C000038033Member"
      id="t_39_be0b224a_c255_5333_2bbb_a8b55b69a8e8">MFNLX</dei:TradingSymbol>
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      contextRef="FY2026_C000038033Member"
      id="t_28_45d85a5f_c892_44a0_a6d5_58f69517751c">This annual shareholder report contains important information about BlackRock National Municipal Fund (the &#x201c;Fund&#x201d;) for the period of July 1, 2025 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2026_C000038033Member"
      id="t_29_ec50ab3a_bea7_4b31_869b_4f2b9cbe32fb">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
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      contextRef="FY2026_C000038033Member"
      id="t_30_59eda1f3_9d58_4e96_9a4a_d6cf818c7ce7">You can find additional information about the Fund at &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2026_C000038033Member"
      id="t_31_f34961e4_d53d_4a07_99bc_460aa4c2879d">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2026_C000038033Member"
      id="t_32_eddfaa79_bf0b_4d24_8b1c_a34f19395c39">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2026_C000038033Member"
      id="t_40_4c22ea31_8d86_7734_a812_92c3b11ba719"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs of a $10,000&lt;br/&gt;investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;153&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;1.49&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
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      id="h_94_f549e772_8f0c_4db2_a480_deffb4a488d1"
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    <oef:ExpenseRatioPct
      contextRef="FY2026_C000038033Member"
      decimals="4"
      id="h_95_312ea617_1d96_44a5_a187_c3319dc78ab6"
      unitRef="pure">0.0149</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2026_C000038033Member"
      id="t_41_fa778db4_59e2_637e_5895_52c6b588bf0e"> &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 0px;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt; &lt;/div&gt; &lt;ul style="counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid-page; page-break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the reporting period ended June 30, 2026, the Fund&#x2019;s Investor C Shares returned 5.31%.&lt;/div&gt; &lt;/li&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg Municipal Bond Index, returned 7.03%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;The Fund&#x2019;s positive return reflected contributions from both income and positive price performance. Positions in longer-term bonds made meaningful contributions to absolute performance, led by those in the 12- to 15-year, 15- to 18-year, and 20- to 25-year areas. From a quality perspective, holdings in AA and A rated bonds contributed the most. Transportation, tax-backed states, and corporate-backed securities were the largest contributors at the sector level.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;At a time of positive market performance, all major segments of the Fund posted gains. A few individual securities finished with losses, however, most notably high-yield issues in the transportation and charter schools sectors.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;&lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt;&lt;/div&gt; &lt;/div&gt; </oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2026_C000038033Member"
      id="t_42_209ea9c8_ef5f_c9a8_fa99_e6dad4ee3b75"> &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 5pt;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;Fund performance&lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Cumulative performance: July 1, 2016 through June 30, 2026&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt; text-align: center;"&gt;
&lt;img alt="Fund Performance - Growth of 10K" src="g166521chartimages_6938522.jpg" style="width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; padding: 0px; margin: 0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt; </oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2026_C000038033Member"
      id="t_43_5888bbff_9ddc_a436_6fa3_d53071dfa4b7"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;5.31&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;(0.38&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.05&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Investor C Shares (with sales charge)&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;4.31&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;(0.38&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;)&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.05&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;"&gt;Bloomberg Municipal Bond Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;7.03&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.05&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;2.15&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_C000038033Member_WithoutSalesLoadMember"
      id="t_44_089e0049_3229_6410_9a5e_f3b055f485d1">Investor C Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_C000038033Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_96_63650a5e_f7d2_421a_8d67_dff876011adc"
      unitRef="pure">0.0531</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_C000038033Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_97_1e054a36_86fa_4551_a5a2_8a24cbadffae"
      unitRef="pure">-0.0038</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_C000038033Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_98_3dfbbb0f_5d9a_42bc_b2a9_16ab7714a18c"
      unitRef="pure">0.0105</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_C000038033Member"
      id="t_45_64c37f93_07b3_4b70_682a_7c272412e6e3">Investor C Shares (with sales charge)</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_C000038033Member"
      decimals="4"
      id="h_99_694a6f27_b332_4b47_a320_cebecb38620d"
      unitRef="pure">0.0431</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_C000038033Member"
      decimals="4"
      id="h_100_2bebb74c_af32_4889_8da5_32ddaf37beb8"
      unitRef="pure">-0.0038</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_C000038033Member"
      decimals="4"
      id="h_101_78cdf221_1517_41d1_880a_6c0524e75a08"
      unitRef="pure">0.0105</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      id="t_46_5faccbe0_9d27_a49c_d173_33ed55413d1a">Bloomberg Municipal Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_102_e71e68f5_ac20_4e28_a281_476857c64123"
      unitRef="pure">0.0703</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_103_cb1316f8_ef5a_4907_9c4d_27f9507373e4"
      unitRef="pure">0.0105</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_104_d5856ab3_7820_4bd9_a6c8_c824dd67d704"
      unitRef="pure">0.0215</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2026_C000038033Member"
      id="t_47_87a936d6_ad42_cec0_25a1_eb279e0b4a96"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;5,768,861,371&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;519&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;21,057,679&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;54&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260630_C000038033Member"
      decimals="INF"
      id="h_105_3c8824f3_1124_4b50_a056_a08352fd3fa7"
      unitRef="USD">5768861371</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260630_C000038033Member"
      decimals="INF"
      id="h_106_b949558c_99e3_456d_a8da_7e1760ab5754"
      unitRef="Holding">519</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2026_C000038033Member"
      decimals="INF"
      id="h_107_895cde39_ed06_4396_bb16_53c7f523e874"
      unitRef="USD">21057679</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2026_C000038033Member"
      decimals="4"
      id="h_108_86446087_0d33_46eb_a1e5_7fe61f6835f3"
      unitRef="pure">0.54</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2026_C000038033Member"
      id="t_48_015a004d_44c7_2a34_ff8f_47ce4c291819">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2026_C000038033Member"
      id="t_49_19ab4f79_80c9_d77b_1cbb_11fefb214645">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2026_C000038033Member"
      id="t_50_5443a2a7_f396_d9f7_d59c_c1bd56a71b77">Visit &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2026_C000038033Member"
      id="t_36_74c0159e_7808_4bf0_9b47_9b8451d49263"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of June 30, 2026)&lt;/div&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;&lt;strong&gt;Sector&lt;/strong&gt;&lt;strong&gt; allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Sector&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Transportation&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;20.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;State&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;18.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Corporate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;15.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Utilities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;County/City/Special District/School District&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Health&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;9.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Housing&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Education&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;4.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Tobacco&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;&lt;span style="white-space: nowrap;"&gt;Other&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Credit quality allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Credit Rating&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AAA/Aaa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;14.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AA/Aa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;55.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;A&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;19.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BBB/Baa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BB/Ba&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;B&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;N/R&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;6.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Ten largest sectors are presented. Additional sectors are found in Other.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_TransportationSectorMember"
      decimals="4"
      id="h_109_4be7e230_30bb_4e80_9c16_b9f0a726fb02"
      unitRef="pure">0.200</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_StateMember"
      decimals="4"
      id="h_110_9169ca4e_8671_417f_8381_b9a5c681557a"
      unitRef="pure">0.183</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_CorporateSectorMember"
      decimals="4"
      id="h_111_9880456f_300d_46f9_b0ed_b3164712ec9d"
      unitRef="pure">0.157</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_UtilitiesSectorMember"
      decimals="4"
      id="h_112_38acbb2a_e1e2_4668_891b_8bd9cc13352a"
      unitRef="pure">0.114</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_CountyCitySpecialDistrictSchoolDistrictMember"
      decimals="4"
      id="h_113_02fefa44_4629_43ff_85fb_784f3bf8ef31"
      unitRef="pure">0.111</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_HealthMember"
      decimals="4"
      id="h_114_677611d6_23af_4680_bf25_eefbad89cbd9"
      unitRef="pure">0.099</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_HousingMember"
      decimals="4"
      id="h_115_ff9fbe44_696f_4750_8742_70e2074426f4"
      unitRef="pure">0.052</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_EducationMember"
      decimals="4"
      id="h_116_61f15de6_23f2_49eb_b31f_1e809c843129"
      unitRef="pure">0.045</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_FixedIncomeFundsMember"
      decimals="4"
      id="h_117_3f240184_173f_4b72_aeae_fb202ff76b9d"
      unitRef="pure">0.019</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_TobaccoMember"
      decimals="4"
      id="h_118_8f74093d_2a17_4147_beaa_c1f1a6d73431"
      unitRef="pure">0.010</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_UnclassifiedSectorMember"
      decimals="4"
      id="h_119_1fce7984_ee66_4065_b0a0_2277412c5906"
      unitRef="pure">0.010</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_StandardPoorsAAARatingMember"
      decimals="4"
      id="h_120_742300d1_212b_4163_9e5a_fb07ad614eac"
      unitRef="pure">0.145</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_StandardPoorsAARatingMember"
      decimals="4"
      id="h_121_a9737757_7cf1_4a53_a8b6_ab6a727bbda5"
      unitRef="pure">0.554</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_StandardPoorsARatingMember"
      decimals="4"
      id="h_122_c6759649_156b_4199_8dc9_3b0107849dd2"
      unitRef="pure">0.190</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_StandardPoorsBBBRatingMember"
      decimals="4"
      id="h_123_81d9fc70_dbd0_40e4_aa0c_6dcafb047d8b"
      unitRef="pure">0.032</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_StandardPoorsBBRatingMember"
      decimals="4"
      id="h_124_cc89c8bc_ffe5_4b33_8812_e69dc2b46673"
      unitRef="pure">0.004</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_StandardPoorsBRatingMember"
      decimals="4"
      id="h_125_74868663_438b_43bb_93ec_26ad7fcbd041"
      unitRef="pure">0.008</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038033Member_NRMember"
      decimals="4"
      id="h_126_0d391130_70e9_451f_80e4_023a06e4d5eb"
      unitRef="pure">0.067</oef:PctOfTotalInv>
    <oef:CreditQualityExplanationTextBlock
      contextRef="FY2026_C000038033Member"
      id="t_51_36ba3834_d5e9_eb89_b142_ca6fc83463e0">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</oef:CreditQualityExplanationTextBlock>
    <oef:CreditRatingsSelectionTextBlock
      contextRef="FY2026_C000038033Member"
      id="t_52_13699fec_f554_dcc4_52a7_4508a9d4a631">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc.</oef:CreditRatingsSelectionTextBlock>
    <oef:FundName
      contextRef="FY2026_C000100250Member"
      id="t_46_0df9ae79_b16d_8d48_4f1e_ec7ab8a64fdf">BlackRock National Municipal Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2026_C000100250Member"
      id="t_47_97484248_fb49_9d02_420f_4c2259cb228e">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2026_C000100250Member"
      id="t_48_be8f3c60_9c20_1134_bffd_7158d6fc7227">BNMLX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2026_C000100250Member"
      id="t_37_2621c858_bb07_417a_83b1_f167898b5bb4">This annual shareholder report contains important information about BlackRock National Municipal Fund (the &#x201c;Fund&#x201d;) for the period of July 1, 2025 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2026_C000100250Member"
      id="t_38_e209c758_7940_4223_9bd9_21ae7bda1105">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2026_C000100250Member"
      id="t_39_3cc0515c_172a_4b9f_b3c1_49e6ce28375b">You can find additional information about the Fund at &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2026_C000100250Member"
      id="t_40_812f3048_18cd_480f_9a3e_6aafd7287f6b">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2026_C000100250Member"
      id="t_41_4b5ae90b_95cb_475e_9e21_ef0598698793">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2026_C000100250Member"
      id="t_49_9f15e4cd_6d2b_10e2_4794_d2fea892ec6b"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;  &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;  
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs of a $10,000&lt;br/&gt;investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;45&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.44&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2026_C000100250Member"
      decimals="INF"
      id="h_127_8f0c3588_534b_4375_bd4e_04d543cbf7f6"
      unitRef="USD">45</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2026_C000100250Member"
      decimals="4"
      id="h_128_82a09451_739e_455c_aa1a_a165ccfac1d4"
      unitRef="pure">0.0044</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2026_C000100250Member"
      id="t_50_838828e4_17e0_dd92_0477_2aa3ea7e65e5"> &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 0px;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt; &lt;/div&gt; &lt;ul style="counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid-page; page-break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the reporting period ended June 30, 2026, the Fund&#x2019;s Class K Shares returned 6.41%.&lt;/div&gt; &lt;/li&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg Municipal Bond Index, returned 7.03%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;The Fund&#x2019;s positive return reflected contributions from both income and positive price performance. Positions in longer-term bonds made meaningful contributions to absolute performance, led by those in the 12- to 15-year, 15- to 18-year, and 20- to 25-year areas. From a quality perspective, holdings in AA and A rated bonds contributed the most. Transportation, tax-backed states, and corporate-backed securities were the largest contributors at the sector level.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;At a time of positive market performance, all major segments of the Fund posted gains. A few individual securities finished with losses, however, most notably high-yield issues in the transportation and charter schools sectors.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;&lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt;&lt;/div&gt; &lt;/div&gt; </oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2026_C000100250Member"
      id="t_51_425ed786_40f3_77f0_de6b_eb2bb1c0604a"> &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 5pt;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;Fund performance&lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Cumulative performance: July 1, 2016 through June 30, 2026&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt; text-align: center;"&gt;
&lt;img alt="Fund Performance - Growth of 10K" src="g166521chartimages_6938523.jpg" style="width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; padding: 0px; margin: 0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt; </oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2026_C000100250Member"
      id="t_54_8b757946_c4e0_af23_44b0_bfd9143b9454"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;6.41&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;0.69&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.96&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;"&gt;Bloomberg Municipal Bond Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;7.03&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.05&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;2.15&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_C000100250Member"
      id="t_52_61909b24_0754_feee_319c_76991ead7790">Class K Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_C000100250Member"
      decimals="4"
      id="h_129_1a60c739_532d_4677_a532_ccb84420fdbc"
      unitRef="pure">0.0641</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_C000100250Member"
      decimals="4"
      id="h_130_821f0670_92e3_4cc7_afec_a4af4815f88b"
      unitRef="pure">0.0069</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_C000100250Member"
      decimals="4"
      id="h_131_7ff16cae_8db5_46db_acd2_805d6022c7c9"
      unitRef="pure">0.0196</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      id="t_53_bac64c02_929b_d07f_14ea_bd5228194594">Bloomberg Municipal Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_132_b31f4c20_793f_4d72_a47f_2119fa475466"
      unitRef="pure">0.0703</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_133_8a2e4774_a21b_49fe_b63a_466406eee407"
      unitRef="pure">0.0105</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_134_2389699e_cf39_4ffb_a076_c777960a429c"
      unitRef="pure">0.0215</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2026_C000100250Member"
      id="t_55_a42708ae_7526_a480_d9fa_885200b8b467"> 
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;5,768,861,371&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;519&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;21,057,679&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;54&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260630_C000100250Member"
      decimals="INF"
      id="h_135_353f220b_fdc7_4d32_83e8_700e326a087c"
      unitRef="USD">5768861371</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260630_C000100250Member"
      decimals="INF"
      id="h_136_467471e7_30a3_4e94_9379_d9f5e6f0571e"
      unitRef="Holding">519</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2026_C000100250Member"
      decimals="INF"
      id="h_137_8d8ad1ea_88d4_4efe_823d_c0408fe39d1f"
      unitRef="USD">21057679</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2026_C000100250Member"
      decimals="4"
      id="h_138_ea92cb02_99d7_4e1d_8712_e00f28e61352"
      unitRef="pure">0.54</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2026_C000100250Member"
      id="t_56_f165f287_80b1_dfa0_5588_613db7a93655">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2026_C000100250Member"
      id="t_57_36200ef5_9f01_0d79_6e00_a68bd5fcf94f">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2026_C000100250Member"
      id="t_58_a3ebaed0_6509_4ca9_7154_52324f27b8a6">Visit &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2026_C000100250Member"
      id="t_61_61580f6c_3c06_4085_1510_c962a89cfa04"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of June 30, 2026)&lt;/div&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;&lt;strong&gt;Sector&lt;/strong&gt;&lt;strong&gt; allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Sector&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Transportation&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;20.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;State&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;18.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Corporate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;15.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Utilities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;County/City/Special District/School District&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Health&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;9.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Housing&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Education&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;4.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Fixed Income Funds&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Tobacco&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;&lt;span style="white-space: nowrap;"&gt;Other&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;1.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Credit quality allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Credit Rating&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AAA/Aaa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;14.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AA/Aa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;55.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;A&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;19.0&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BBB/Baa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;3.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BB/Ba&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;B&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;N/R&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;6.7&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;*&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Ten largest sectors are presented. Additional sectors are found in Other.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
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      contextRef="TI20260630_C000100250Member_TransportationSectorMember"
      decimals="4"
      id="h_139_443eea6e_3cbd_43fd_9c00_9f2a0dafff75"
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      id="h_141_56ea9a51_d466_4a4b_a720_e0e432ad7c0d"
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      id="h_146_fa06eab7_331b_44dc_a91e_f2733de2a23f"
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      decimals="4"
      id="h_147_8543e886_eb06_45f4_be29_75b20909881d"
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      decimals="4"
      id="h_148_8bec0433_354f_4c93_9434_ad29e63adb3d"
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      decimals="4"
      id="h_149_9d9b7bce_6ccb_4f4e_973f_f835b48fc39d"
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      id="h_150_4bc68a49_e121_421b_a89a_71550f4e3e3d"
      unitRef="pure">0.145</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000100250Member_StandardPoorsAARatingMember"
      decimals="4"
      id="h_151_f67fae59_8a2e_47bf_b31e_e61633083374"
      unitRef="pure">0.554</oef:PctOfTotalInv>
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      decimals="4"
      id="h_152_6fd07bb6_e5b5_4028_b9a1_a09e07c0f927"
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    <oef:PctOfTotalInv
      contextRef="TI20260630_C000100250Member_StandardPoorsBBBRatingMember"
      decimals="4"
      id="h_153_5b1e6317_c8a9_448c_88b9_3af3498126b5"
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    <oef:PctOfTotalInv
      contextRef="TI20260630_C000100250Member_StandardPoorsBBRatingMember"
      decimals="4"
      id="h_154_2be0f390_4e53_4009_934d_fc12bae6e5da"
      unitRef="pure">0.004</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000100250Member_StandardPoorsBRatingMember"
      decimals="4"
      id="h_155_fe019c02_6ae4_4d6f_a127_5351b86984f9"
      unitRef="pure">0.008</oef:PctOfTotalInv>
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      id="h_156_02d901e1_67dc_4c68_bf50_a255555e8445"
      unitRef="pure">0.067</oef:PctOfTotalInv>
    <oef:CreditQualityExplanationTextBlock
      contextRef="FY2026_C000100250Member"
      id="t_60_8291633b_c463_55b4_2857_57b508203bcb">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</oef:CreditQualityExplanationTextBlock>
    <oef:CreditRatingsSelectionTextBlock
      contextRef="FY2026_C000100250Member"
      id="t_59_20ad72be_4cee_aac1_2f08_dcc13335bd82">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc.</oef:CreditRatingsSelectionTextBlock>
    <oef:FundName
      contextRef="FY2026_C000006125Member"
      id="t_55_ce62d758_e1eb_b777_3ae5_39ccedfdd9bc">BlackRock Short Duration Muni Fund</oef:FundName>
    <oef:ClassName
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      id="t_56_f82f7c1e_50bf_fb96_b552_888acf94d8ba">Institutional Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2026_C000006125Member"
      id="t_57_5ec6274c_8913_9d07_70a7_fc6c391269df">MALMX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2026_C000006125Member"
      id="t_46_298723da_ddaf_499e_9c68_485fcd611e50">This annual shareholder report contains important information about BlackRock Short Duration Muni Fund (the &#x201c;Fund&#x201d;) for the period of July 1, 2025 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2026_C000006125Member"
      id="t_47_e1397a75_e5f2_4fdb_9ea8_549b108efcd0">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2026_C000006125Member"
      id="t_48_5bc77f3a_65b7_4795_98db_79b427e3101e">You can find additional information about the Fund at &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2026_C000006125Member"
      id="t_49_dd1f2738_6363_47eb_b4d8_e7ea257ab889">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2026_C000006125Member"
      id="t_50_08540244_913c_462e_a98b_72e7306dcbc6">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
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      contextRef="FY2026_C000006125Member"
      id="t_58_002d6ae7_051b_b4cf_e208_5dd26162616a">&lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs of a $10,000&lt;br/&gt;investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;37&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.36&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2026_C000006125Member"
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      id="h_157_6bca0e32_31b9_485d_b24e_b67ef5409efa"
      unitRef="USD">37</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2026_C000006125Member"
      decimals="4"
      id="h_158_aa81e2e1_2593_461b_9848_c1f76a8a8fc5"
      unitRef="pure">0.0036</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2026_C000006125Member"
      id="t_59_0ec98f82_fdc7_83f3_d1e8_d0b14c561d19">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 0px;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt; &lt;/div&gt; &lt;ul style="counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid-page; page-break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the reporting period ended June 30, 2026, the Fund&#x2019;s Institutional Shares returned 4.36%.&lt;/div&gt; &lt;/li&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg Municipal Bond Index returned 7.03% and the Bloomberg Municipal 1-5 Year Index, returned 3.32%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;The addition of duration (interest rate sensitivity) at the beginning of the period was the largest contributor to performance given the strength in the municipal market through the end of February 2026. Although this aspect of the Fund&#x2019;s positioning detracted thereafter, the net effect was a meaningful positive. A preference for bonds with seven- to 10-year maturities over short-term debt was an additional contributor. Holdings in lower-rated bonds, which benefited from both their above-average yields and a compression in yield spreads, further helped results. At the sector level, positions in corporate-backed, healthcare, and transportation issues were the most notable contributors.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;At a time of positive market performance, all major segments of the Fund posted gains. A few individual securities finished with losses, however, most notably in the transportation sector.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;&lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt;&lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2026_C000006125Member"
      id="t_60_e0979f96_8036_2140_ef14_b7f378a29c63">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 5pt;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;Fund performance&lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Cumulative performance: July 1, 2016 through June 30, 2026&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt; text-align: center;"&gt;
&lt;img alt="Fund Performance - Growth of 10K" src="g166521chartimages_6938512.jpg" style="width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; padding: 0px; margin: 0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2026_C000006125Member"
      id="t_61_4d63e3ef_7d8b_5ae4_fefb_6641a53758ef">
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Institutional Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;4.36&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;2.19&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.64&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Bloomberg Municipal Bond Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;7.03&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.05&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;2.15&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;"&gt;Bloomberg Municipal 1-5 Year Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;3.32&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.55&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.66&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
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      id="t_62_1789cdd7_3b7d_edb4_a8b6_6bbc707cb1f9">Institutional Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_184_dc931211_dee0_3941_7be8_4c8e9a33cdfb"
      unitRef="pure">0.0436</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_C000006125Member"
      decimals="4"
      id="h_185_4217a9d6_08d8_1237_c220_577615c76671"
      unitRef="pure">0.0219</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_C000006125Member"
      decimals="4"
      id="h_186_5b24bded_52a4_41c9_62e7_d935b04f7bd6"
      unitRef="pure">0.0164</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      id="t_68_39719c82_bcfd_d6e5_2180_0515101e16a8">Bloomberg Municipal Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_159_0ddc84d3_0e4f_44c9_8a8f_b0edbf0c33b3"
      unitRef="pure">0.0703</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_160_279c0a60_72b9_444a_ab90_81cfbc72b15e"
      unitRef="pure">0.0105</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_161_4f5f7bbd_bb49_4fc9_9d61_eb29627953f8"
      unitRef="pure">0.0215</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipal15YearIndexMember"
      id="t_69_2acfdc07_f882_30b7_9c66_828df9330076">Bloomberg Municipal 1-5 Year Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_162_3564cfe9_7826_4dc1_bc2e_b7dfaa071cba"
      unitRef="pure">0.0332</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_163_74a23059_3e29_4d44_8f4d_0c7baf8be990"
      unitRef="pure">0.0155</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_164_25d7edf0_159b_4e30_836a_8808fd159064"
      unitRef="pure">0.0166</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2026_C000006125Member"
      id="t_70_599ed29d_49ee_1181_b656_1e294bf2b037">
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;505,136,384&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;227&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;1,191,659&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;44&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260630_C000006125Member"
      decimals="INF"
      id="h_165_00864f8f_b865_48bf_9744_dfc2bebade11"
      unitRef="USD">505136384</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260630_C000006125Member"
      decimals="INF"
      id="h_166_8e3f530f_0274_45c9_8a49_e00ff3ca3479"
      unitRef="Holding">227</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2026_C000006125Member"
      decimals="INF"
      id="h_167_183a3520_6405_4f8b_886e_51b97ea7fd0d"
      unitRef="USD">1191659</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2026_C000006125Member"
      decimals="4"
      id="h_168_690e2b90_e624_430a_a800_8ffc9711ae8a"
      unitRef="pure">0.44</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2026_C000006125Member"
      id="t_63_4bf8bf98_c665_f9ff_646b_61b61bfcc988">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2026_C000006125Member"
      id="t_64_b19bc4ae_721f_0f01_ac8a_49f7682b52fa">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2026_C000006125Member"
      id="t_65_4b3c3cea_c201_1c6b_26ba_c20330ce6c8d">Visit &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2026_C000006125Member"
      id="t_54_4d28fc65_e82f_449b_afae_030217e9c2d4"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of June 30, 2026)&lt;/div&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;&lt;strong&gt;Sector&lt;/strong&gt;&lt;strong&gt; allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Sector&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Corporate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;28.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Transportation&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;18.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Health&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;16.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Housing&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;State&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;9.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;County/City/Special District/School District&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Utilities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Education&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Tobacco&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;Construction &amp;amp; Engineering&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;0.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Credit quality allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Credit Rating&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AAA/Aaa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;6.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AA/Aa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;42.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;A&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;38.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BBB/Baa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;8.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;N/R&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;4.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
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      id="h_169_7f30c39b_c79d_4933_91df_d81a157e4dba"
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      id="h_180_e06b68ff_d839_4320_99cf_abe040262aff"
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      id="h_181_9d552f73_b1c0_47dc_8fbc_0312b60a631d"
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      decimals="4"
      id="h_182_fd62119d_6338_4445_b7ea_e81467265a17"
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      id="h_183_c9053783_b2ec_4f00_90e4_e80794aa356a"
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    <oef:CreditQualityExplanationTextBlock
      contextRef="FY2026_C000006125Member"
      id="t_67_db225727_1eed_a910_9bb7_3fc1219ceaaf">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</oef:CreditQualityExplanationTextBlock>
    <oef:CreditRatingsSelectionTextBlock
      contextRef="FY2026_C000006125Member"
      id="t_66_ad7abcf5_2449_c244_1d4f_139093b4f8a3">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc.</oef:CreditRatingsSelectionTextBlock>
    <oef:FundName
      contextRef="FY2026_C000038034Member"
      id="t_60_abaeda4f_f8f6_64b6_feda_99ea3df0c2c1">BlackRock Short Duration Muni Fund</oef:FundName>
    <oef:ClassName
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      id="t_61_f3306468_160d_6d0d_f946_3e1113b60caa">Investor A Shares</oef:ClassName>
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      contextRef="FY2026_C000038034Member"
      id="t_55_3988b7f7_fe84_4d9f_9495_16a0729a4a44">This annual shareholder report contains important information about BlackRock Short Duration Muni Fund (the &#x201c;Fund&#x201d;) for the period of July 1, 2025 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2026_C000038034Member"
      id="t_56_404b7361_840a_4efa_918c_eb32224b5780">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2026_C000038034Member"
      id="t_57_4852ba6a_607f_4e0a_85a6_ba894bbbfa3a">You can find additional information about the Fund at &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2026_C000038034Member"
      id="t_58_5a3b6daa_e438_4048_9601_f78b6f36f7e2">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2026_C000038034Member"
      id="t_59_77c7e966_d71a_401f_b0bc_561fa29d045d">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2026_C000038034Member"
      id="t_63_88c42cce_11f1_2598_8590_fb9430ab8b7f">&lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs of a $10,000&lt;br/&gt;investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;61&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.60&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2026_C000038034Member"
      decimals="INF"
      id="h_184_58af3949_7f79_4f05_9429_83cc339dd210"
      unitRef="USD">61</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2026_C000038034Member"
      decimals="4"
      id="h_185_58b94332_e9a6_4d7f_81ba_4be513188427"
      unitRef="pure">0.0060</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2026_C000038034Member"
      id="t_64_8c16ae24_bb2a_dcc5_df3b_a9f4ca419c00">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 0px;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt; &lt;/div&gt; &lt;ul style="counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid-page; page-break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the reporting period ended June 30, 2026, the Fund&#x2019;s Investor A Shares returned 4.21%.&lt;/div&gt; &lt;/li&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg Municipal Bond Index returned 7.03% and the Bloomberg Municipal 1-5 Year Index, returned 3.32%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;The addition of duration (interest rate sensitivity) at the beginning of the period was the largest contributor to performance given the strength in the municipal market through the end of February 2026. Although this aspect of the Fund&#x2019;s positioning detracted thereafter, the net effect was a meaningful positive. A preference for bonds with seven- to 10-year maturities over short-term debt was an additional contributor. Holdings in lower-rated bonds, which benefited from both their above-average yields and a compression in yield spreads, further helped results. At the sector level, positions in corporate-backed, healthcare, and transportation issues were the most notable contributors.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;At a time of positive market performance, all major segments of the Fund posted gains. A few individual securities finished with losses, however, most notably in the transportation sector.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;&lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt;&lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2026_C000038034Member"
      id="t_65_8b7a2990_c0e0_ca63_ae6a_d67451b9e4b7">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 5pt;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;Fund performance&lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Cumulative performance: July 1, 2016 through June 30, 2026&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt; text-align: center;"&gt;
&lt;img alt="Fund Performance - Growth of 10K" src="g166521chartimages_6938514.jpg" style="width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; padding: 0px; margin: 0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2026_C000038034Member"
      id="t_66_c6698ddd_3f9a_187e_36b5_d6889bd21ebf">
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Investor A Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;4.21&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.95&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.41&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Investor A Shares (with sales charge)&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.09&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.33&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.10&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Bloomberg Municipal Bond Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;7.03&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.05&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;2.15&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;"&gt;Bloomberg Municipal 1-5 Year Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;3.32&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.55&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.66&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
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      id="t_74_5ff4c320_fd93_7599_4103_74c2b5d34b7a">Investor A Shares (with sales charge)</oef:LineGraphAndTableMeasureName>
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      id="h_186_8b29bed6_0021_4449_b5f8_627a84ee17d7"
      unitRef="pure">0.0109</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      id="h_187_7a447a16_05e2_4304_9483_3ded1d86ace6"
      unitRef="pure">0.0133</oef:AvgAnnlRtrPct>
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      id="h_188_2696f412_3f66_4024_a3a2_aecb23ed0bf1"
      unitRef="pure">0.0110</oef:AvgAnnlRtrPct>
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      id="t_76_17899261_9c32_4230_9d20_af025d3b005d">Bloomberg Municipal Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
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      id="h_189_7a331464_17dc_4bc7_8ace_83d5b65bf10a"
      unitRef="pure">0.0703</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
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      decimals="4"
      id="h_190_d9bab81a_6d02_4511_b9f8_3a859f1798fa"
      unitRef="pure">0.0105</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_191_53fdd713_25e8_4e57_9b55_aa83ebbc1db5"
      unitRef="pure">0.0215</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipal15YearIndexMember"
      id="t_77_268e2eec_c948_ad25_47e5_202438a50517">Bloomberg Municipal 1-5 Year Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_192_615d6d29_fded_4993_a14e_9007d3b89f2a"
      unitRef="pure">0.0332</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_193_94a7830e_7a1c_4430_b058_032ef3118296"
      unitRef="pure">0.0155</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_194_af654010_0cfa_4e9c_a4a6_59a0c5b6f8e5"
      unitRef="pure">0.0166</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2026_C000038034Member"
      id="t_67_05727d9b_9ec9_b0d0_74fd_056632f3907c">
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;505,136,384&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;227&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;1,191,659&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;44&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260630_C000038034Member"
      decimals="INF"
      id="h_195_a2e042db_d0bf_4962_966a_dab8761fa2b8"
      unitRef="USD">505136384</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260630_C000038034Member"
      decimals="INF"
      id="h_196_f4b462a6_8d4d_44a5_b8a5_71381d57a837"
      unitRef="Holding">227</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2026_C000038034Member"
      decimals="INF"
      id="h_197_6732d4fa_b011_4078_8b2e_9d52167b9c78"
      unitRef="USD">1191659</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2026_C000038034Member"
      decimals="4"
      id="h_198_e8fd0738_c13e_426a_8ed1_3a6b41d5d9b1"
      unitRef="pure">0.44</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2026_C000038034Member"
      id="t_68_a0d54201_04ae_f2ac_f20c_6894dc5bca83">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2026_C000038034Member"
      id="t_69_53e04776_cb5d_bf74_db2f_c214d103705d">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2026_C000038034Member"
      id="t_70_9d767a75_1de8_54f6_2d73_eeb0e536e95e">Visit &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2026_C000038034Member"
      id="t_71_79405308_09d3_a76c_4cba_494365138d6a">&lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;&lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of June 30, 2026)&lt;/div&gt;
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;&lt;strong&gt;Sector&lt;/strong&gt;&lt;strong&gt; allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Sector&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Corporate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;28.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Transportation&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;18.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Health&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;16.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Housing&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;State&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;9.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;County/City/Special District/School District&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Utilities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Education&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Tobacco&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;Construction &amp;amp; Engineering&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;0.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Credit quality allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Credit Rating&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AAA/Aaa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;6.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AA/Aa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;42.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;A&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;38.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BBB/Baa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;8.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;N/R&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;4.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;
&lt;table style="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.&lt;/div&gt; &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:HoldingsTableTextBlock>
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      id="h_199_52b2d27c_1278_4f08_ad72_d34124d59a8f"
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      id="h_202_c47ba84f_ff01_4190_b641_6e4cdf1fb146"
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      id="h_203_afd28669_3705_41c6_b81d_96c0e19074ca"
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      id="h_206_7b0df64f_c812_4f93_b452_2cc056f7e155"
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      id="h_207_0ba1d9d8_9a40_415e_8e6d_22ddb1584b42"
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      id="h_208_2de42994_888e_4b5b_b24f_e4e918387ef6"
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      id="h_209_1b6e7fb1_06c8_4f64_ba4c_ad1ca87e66e4"
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    <oef:PctOfTotalInv
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      id="h_210_e66b5bc9_c037_41e7_a89e_b427ce2b9ae7"
      unitRef="pure">0.423</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000038034Member_StandardPoorsARatingMember"
      decimals="4"
      id="h_211_77059491_d7c4_44c5_b49a_af3c495b33c1"
      unitRef="pure">0.381</oef:PctOfTotalInv>
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      contextRef="TI20260630_C000038034Member_StandardPoorsBBBRatingMember"
      decimals="4"
      id="h_212_682731a2_3290_4092_8a3f_18ca9db7a673"
      unitRef="pure">0.089</oef:PctOfTotalInv>
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      decimals="4"
      id="h_213_c9b89930_4227_40ad_ac05_68e59304204b"
      unitRef="pure">0.043</oef:PctOfTotalInv>
    <oef:CreditQualityExplanationTextBlock
      contextRef="FY2026_C000038034Member"
      id="t_72_abead73d_ef3f_a003_acb4_1fc19fe2f577">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</oef:CreditQualityExplanationTextBlock>
    <oef:CreditRatingsSelectionTextBlock
      contextRef="FY2026_C000038034Member"
      id="t_73_12cfceae_b83d_4056_210a_e8ec58a2006c">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc.</oef:CreditRatingsSelectionTextBlock>
    <oef:FundName
      contextRef="FY2026_C000006122Member"
      id="t_73_a0889fa7_9d64_485f_2ef6_81d5a11030f1">BlackRock Short Duration Muni Fund</oef:FundName>
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      contextRef="FY2026_C000006122Member"
      id="t_74_eb4b3a9a_7e0d_a356_9d81_62c0b53ae4fc">Investor A1 Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2026_C000006122Member"
      id="t_75_e3c06c3c_3244_a927_a98f_edb284b2d817">MDLMX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2026_C000006122Member"
      id="t_64_effc7561_ec61_4ae0_b030_174956077e98">This annual shareholder report contains important information about BlackRock Short Duration Muni Fund (the &#x201c;Fund&#x201d;) for the period of July 1, 2025 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2026_C000006122Member"
      id="t_65_e6d60df8_f106_4a6a_bfef_f97f724497c8">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2026_C000006122Member"
      id="t_66_bc07bf46_23a2_4033_ab2a_242926317b54">You can find additional information about the Fund at &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2026_C000006122Member"
      id="t_67_f4e38fe8_2889_44b0_8c2d_19515bfca509">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2026_C000006122Member"
      id="t_68_e539fddb_0b10_40e1_a01b_c38489399258">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2026_C000006122Member"
      id="t_76_212e975b_a506_1699_38d5_f1d9bb3b5ebc">&lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs of a $10,000&lt;br/&gt;investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor A1 Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;47&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.46&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2026_C000006122Member"
      decimals="INF"
      id="h_214_70b3ee18_987f_402f_8e01_bd282c593f22"
      unitRef="USD">47</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2026_C000006122Member"
      decimals="4"
      id="h_215_ad931f0e_b59c_4d15_ba0d_aa1d51be9a14"
      unitRef="pure">0.0046</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2026_C000006122Member"
      id="t_77_9b2a860a_10d0_ce12_a6f9_d530e9ab5d0e">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 0px;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt; &lt;/div&gt; &lt;ul style="counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid-page; page-break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the reporting period ended June 30, 2026, the Fund&#x2019;s Investor A1 Shares returned 4.25%.&lt;/div&gt; &lt;/li&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg Municipal Bond Index returned 7.03% and the Bloomberg Municipal 1-5 Year Index, returned 3.32%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;The addition of duration (interest rate sensitivity) at the beginning of the period was the largest contributor to performance given the strength in the municipal market through the end of February 2026. Although this aspect of the Fund&#x2019;s positioning detracted thereafter, the net effect was a meaningful positive. A preference for bonds with seven- to 10-year maturities over short-term debt was an additional contributor. Holdings in lower-rated bonds, which benefited from both their above-average yields and a compression in yield spreads, further helped results. At the sector level, positions in corporate-backed, healthcare, and transportation issues were the most notable contributors.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;At a time of positive market performance, all major segments of the Fund posted gains. A few individual securities finished with losses, however, most notably in the transportation sector.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;&lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt;&lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2026_C000006122Member"
      id="t_78_c80d4756_b7b0_9d8b_e26c_b28451dbec5d">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 5pt;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;Fund performance&lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Cumulative performance: July 1, 2016 through June 30, 2026&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt; text-align: center;"&gt;
&lt;img alt="Fund Performance - Growth of 10K" src="g166521chartimages_6938516.jpg" style="width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; padding: 0px; margin: 0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2026_C000006122Member"
      id="t_79_2652365e_34ac_35e0_a381_4e4a31d3cfa1">
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Investor A1 Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;4.25&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;2.09&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.54&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Bloomberg Municipal Bond Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;7.03&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.05&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;2.15&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;"&gt;Bloomberg Municipal 1-5 Year Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;3.32&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.55&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.66&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_C000006122Member"
      id="t_80_937c7ea0_3248_4e6c_51a2_ecb472aa7612">Investor A1 Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_C000006122Member"
      decimals="4"
      id="h_241_2edf7609_8723_7e84_49ef_54f6454da4fc"
      unitRef="pure">0.0425</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_C000006122Member"
      decimals="4"
      id="h_242_5bbcd70c_335b_e095_cda5_3256f39c251c"
      unitRef="pure">0.0209</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_C000006122Member"
      decimals="4"
      id="h_243_c9b21eb8_7135_4fe9_7483_294184341115"
      unitRef="pure">0.0154</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      id="t_81_6474e7e0_71ce_2882_6607_e61cd4f5d81e">Bloomberg Municipal Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_216_d80b9986_621e_403b_a9f1_3774a6e9f749"
      unitRef="pure">0.0703</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_217_2c3f4c28_6fd2_4dd4_a956_c38c8bc1a8cd"
      unitRef="pure">0.0105</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_218_2393649f_7ff3_4722_a03d_ea9bbecfa14c"
      unitRef="pure">0.0215</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipal15YearIndexMember"
      id="t_82_27ac12cd_f9ee_8154_0673_d41f01fa0429">Bloomberg Municipal 1-5 Year Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_219_dd4a6638_a577_4a6a_8592_8edfbe16fa8b"
      unitRef="pure">0.0332</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_220_4589c013_7a01_4ccf_b71d_2700d7666c2d"
      unitRef="pure">0.0155</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_221_9d9e0427_3699_481f_8427_a4928e648011"
      unitRef="pure">0.0166</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2026_C000006122Member"
      id="t_83_bffc8e03_274f_8107_8175_173c10dc3a35">
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;505,136,384&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;227&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;1,191,659&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;44&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
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      decimals="INF"
      id="h_222_7e2f092b_58d8_489c_9a1d_b6a382d3ead1"
      unitRef="USD">505136384</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260630_C000006122Member"
      decimals="INF"
      id="h_223_139d712c_0d36_481d_954f_1cac440d8c51"
      unitRef="Holding">227</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2026_C000006122Member"
      decimals="INF"
      id="h_224_03bc5981_40aa_4ea6_acde_32aa1ff15a69"
      unitRef="USD">1191659</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2026_C000006122Member"
      decimals="4"
      id="h_225_2068c5c6_7563_4ff3_a561_8fa1ff2641fc"
      unitRef="pure">0.44</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2026_C000006122Member"
      id="t_84_85fe91ce_4391_707a_0ced_2c6b02fcc4ef">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2026_C000006122Member"
      id="t_85_900d3e08_8eeb_f529_7f87_28d6f9168925">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2026_C000006122Member"
      id="t_86_e909e1bb_bc2a_e264_e043_173b53726869">Visit &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2026_C000006122Member"
      id="t_72_fdbf21a0_1d06_4da1_b75e_59c188aaa172"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of June 30, 2026)&lt;/div&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;&lt;strong&gt;Sector&lt;/strong&gt;&lt;strong&gt; allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Sector&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Corporate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;28.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Transportation&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;18.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Health&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;16.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Housing&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;State&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;9.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;County/City/Special District/School District&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Utilities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Education&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Tobacco&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;Construction &amp;amp; Engineering&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;0.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Credit quality allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Credit Rating&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AAA/Aaa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;6.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AA/Aa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;42.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;A&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;38.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BBB/Baa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;8.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;N/R&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;4.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
    <oef:PctOfTotalInv
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      id="h_226_0de91b63_8119_4129_97f1_21227b308ffc"
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      id="h_227_7ba1fb57_5cf1_4246_9062_1a18c4de6023"
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      id="h_228_ecf7c4a7_f697_4d11_948f_95d0bf1b8d1e"
      unitRef="pure">0.162</oef:PctOfTotalInv>
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      decimals="4"
      id="h_229_fee89077_3312_4f90_8b8e_ac6aeccdbf38"
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      id="h_230_47358251_b051_4402_8f3a_5ffed76f8b9e"
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      id="h_231_126a8602_d1a6_4a6f_99cd_3034775a0532"
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      id="h_232_1db8cdf3_6ebb_4446_89b8_e25bc0524673"
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      contextRef="TI20260630_C000006122Member_EducationMember"
      decimals="4"
      id="h_233_02e6d179_0cc0_4935_bbec_c9a29e725d24"
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    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006122Member_TobaccoMember"
      decimals="4"
      id="h_234_053030a6_3ef3_4bea_a363_3762d22043fa"
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    <oef:PctOfTotalInv
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      id="h_235_5a3a45f6_d588_484b_9962_3aa44b8c0a0d"
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    <oef:PctOfTotalInv
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      id="h_236_45e0ce65_3b74_4218_ac1d_e3841a165a43"
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    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006122Member_StandardPoorsAARatingMember"
      decimals="4"
      id="h_237_244b193f_2b69_46df_a626_d5b9295cb535"
      unitRef="pure">0.423</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006122Member_StandardPoorsARatingMember"
      decimals="4"
      id="h_238_461ba1df_1b46_4b4e_8db7_603cf77c1194"
      unitRef="pure">0.381</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006122Member_StandardPoorsBBBRatingMember"
      decimals="4"
      id="h_239_949d9534_8402_42ad_b69a_111b28ddb9b3"
      unitRef="pure">0.089</oef:PctOfTotalInv>
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      contextRef="TI20260630_C000006122Member_NRMember"
      decimals="4"
      id="h_240_1b8189ca_73b7_4984_b119_5d3edf72aa86"
      unitRef="pure">0.043</oef:PctOfTotalInv>
    <oef:CreditQualityExplanationTextBlock
      contextRef="FY2026_C000006122Member"
      id="t_88_7806e323_7017_91f6_60e4_fe7cfba1c0fc">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</oef:CreditQualityExplanationTextBlock>
    <oef:CreditRatingsSelectionTextBlock
      contextRef="FY2026_C000006122Member"
      id="t_87_a4ae5899_3e19_f735_cd90_e636af4fdb40">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc.</oef:CreditRatingsSelectionTextBlock>
    <oef:FundName
      contextRef="FY2026_C000006124Member"
      id="t_82_b63d1af1_3295_d03e_bd5b_67dbcbdc0901">BlackRock Short Duration Muni Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2026_C000006124Member"
      id="t_83_19d60fa9_37e6_4bfc_44d3_59e9522220b5">Investor C Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2026_C000006124Member"
      id="t_84_fba13e75_9de9_5e6f_0254_d172dd55bcdf">MFLMX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2026_C000006124Member"
      id="t_73_dd1a4746_bf6e_42c6_9cb4_fcb3d3815da8">This annual shareholder report contains important information about BlackRock Short Duration Muni Fund (the &#x201c;Fund&#x201d;) for the period of July 1, 2025 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2026_C000006124Member"
      id="t_74_0ac62e02_895a_4818_a490_7923dfe0b4b2">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2026_C000006124Member"
      id="t_75_5cc43c80_86ec_4506_90ec_f96cd42f2a05">You can find additional information about the Fund at &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2026_C000006124Member"
      id="t_76_226e40ad_f475_4e1b_8acc_e28a28693dc7">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2026_C000006124Member"
      id="t_77_23ae97a0_a729_45c3_a491_4ec83da47960">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2026_C000006124Member"
      id="t_85_81e080ac_8473_0365_e3cb_44b9f9e69c1a">&lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs of a $10,000&lt;br/&gt;investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;138&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;1.36&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
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      decimals="INF"
      id="h_241_763d2d54_dbf2_4f2a_8442_870efa938cd9"
      unitRef="USD">138</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
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      id="h_242_7133b983_6495_4393_8e60_268d36aa13d0"
      unitRef="pure">0.0136</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2026_C000006124Member"
      id="t_86_c35a37db_7b24_e4f5_b4c3_dd02fba832ab">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 0px;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt; &lt;/div&gt; &lt;ul style="counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid-page; page-break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the reporting period ended June 30, 2026, the Fund&#x2019;s Investor C Shares returned 3.35%.&lt;/div&gt; &lt;/li&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg Municipal Bond Index returned 7.03% and the Bloomberg Municipal 1-5 Year Index, returned 3.32%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;The addition of duration (interest rate sensitivity) at the beginning of the period was the largest contributor to performance given the strength in the municipal market through the end of February 2026. Although this aspect of the Fund&#x2019;s positioning detracted thereafter, the net effect was a meaningful positive. A preference for bonds with seven- to 10-year maturities over short-term debt was an additional contributor. Holdings in lower-rated bonds, which benefited from both their above-average yields and a compression in yield spreads, further helped results. At the sector level, positions in corporate-backed, healthcare, and transportation issues were the most notable contributors.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;At a time of positive market performance, all major segments of the Fund posted gains. A few individual securities finished with losses, however, most notably in the transportation sector.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;&lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt;&lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2026_C000006124Member"
      id="t_87_8c8a358e_b2c5_2c1d_1227_d0993600fe3e">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 5pt;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;Fund performance&lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Cumulative performance: July 1, 2016 through June 30, 2026&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt; text-align: center;"&gt;
&lt;img alt="Fund Performance - Growth of 10K" src="g166521chartimages_6938515.jpg" style="width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; padding: 0px; margin: 0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2026_C000006124Member"
      id="t_88_c5b99dcf_cdad_534d_fb82_d757aaa5f853">
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Investor C Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;3.35&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.16&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;0.78&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Investor C Shares (with sales charge)&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;2.35&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.16&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;0.78&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Bloomberg Municipal Bond Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;7.03&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.05&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;2.15&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;"&gt;Bloomberg Municipal 1-5 Year Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;3.32&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.55&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.66&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_C000006124Member_WithoutSalesLoadMember"
      id="t_89_78cd14b7_af6f_87f3_7700_3f45ee17ab4e">Investor C Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_C000006124Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_271_ad29a93a_f34b_d2f7_548c_c55ac33cd6ff"
      unitRef="pure">0.0335</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_C000006124Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_272_40677c35_278a_ffdd_d190_528d0413ad88"
      unitRef="pure">0.0116</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_C000006124Member_WithoutSalesLoadMember"
      decimals="4"
      id="h_273_20bb2c32_9ab3_7e68_d9ff_d22e8fe329bd"
      unitRef="pure">0.0078</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_C000006124Member"
      id="t_90_f991c230_242f_c98c_3752_5db7e89b5250">Investor C Shares (with sales charge)</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_C000006124Member"
      decimals="4"
      id="h_243_7a170345_8e35_4b66_98a6_477466b943d8"
      unitRef="pure">0.0235</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_C000006124Member"
      decimals="4"
      id="h_244_74457d7d_30d6_4dcc_979d_54da64cb2e8f"
      unitRef="pure">0.0116</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_C000006124Member"
      decimals="4"
      id="h_245_6797fe57_7031_4627_ba45_5ffb1d3cc53d"
      unitRef="pure">0.0078</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      id="t_91_f80cb4b1_fb77_b429_c514_29d4ee0055bd">Bloomberg Municipal Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_246_3a755894_b98d_471f_9941_6c4bd3595289"
      unitRef="pure">0.0703</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_247_34a45112_6e55_436a_ba18_0fcca0b718d2"
      unitRef="pure">0.0105</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_248_0329f149_3889_4375_8991_1463724d3b5c"
      unitRef="pure">0.0215</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipal15YearIndexMember"
      id="t_92_ee5d8366_f149_6fa4_2220_67d76ef01b68">Bloomberg Municipal 1-5 Year Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_249_ad0701be_a4d5_4242_bc20_29cd7d1bfec2"
      unitRef="pure">0.0332</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_250_efdef18a_499a_45b4_a46e_5c8587565c6e"
      unitRef="pure">0.0155</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_251_8eb1e1fb_14fd_4f76_888b_7ff3a388af7f"
      unitRef="pure">0.0166</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2026_C000006124Member"
      id="t_93_cad6aeea_efd3_bc84_5412_9672c62cc960">
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;505,136,384&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;227&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;1,191,659&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;44&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260630_C000006124Member"
      decimals="INF"
      id="h_252_3247f31b_6502_4e58_a66e_ce5930a92a9c"
      unitRef="USD">505136384</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260630_C000006124Member"
      decimals="INF"
      id="h_253_8e0b4e0a_4385_407e_9a36_7b5b89283520"
      unitRef="Holding">227</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2026_C000006124Member"
      decimals="INF"
      id="h_254_3e98bc1e_0935_460c_853b_a2545f428c08"
      unitRef="USD">1191659</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2026_C000006124Member"
      decimals="4"
      id="h_255_570c0dcb_9410_473a_90f6_564b61154e38"
      unitRef="pure">0.44</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2026_C000006124Member"
      id="t_94_29de6359_a041_d734_fd20_e71195b12a55">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2026_C000006124Member"
      id="t_95_5fee172c_1ddf_1d3c_c23b_434b3b2a0da2">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2026_C000006124Member"
      id="t_96_33a84650_94d3_af98_16aa_f4c228c3d152">Visit &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2026_C000006124Member"
      id="t_81_b499715c_1caa_4649_93d0_a0247b3e3b9b"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of June 30, 2026)&lt;/div&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;&lt;strong&gt;Sector&lt;/strong&gt;&lt;strong&gt; allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Sector&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Corporate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;28.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Transportation&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;18.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Health&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;16.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Housing&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;State&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;9.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;County/City/Special District/School District&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Utilities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Education&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Tobacco&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;Construction &amp;amp; Engineering&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;0.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Credit quality allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Credit Rating&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AAA/Aaa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;6.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AA/Aa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;42.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;A&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;38.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BBB/Baa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;8.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;N/R&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;4.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="width: 100%; border-collapse: collapse; break-inside: avoid-page; page-break-inside: avoid; margin-top: 0px;"&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006124Member_CorporateSectorMember"
      decimals="4"
      id="h_256_4b112439_03df_41b6_815a_439f8aff9663"
      unitRef="pure">0.286</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006124Member_TransportationSectorMember"
      decimals="4"
      id="h_257_29e8639c_1629_4d59_b092_14ff1af20870"
      unitRef="pure">0.181</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006124Member_HealthMember"
      decimals="4"
      id="h_258_59ab0911_590c_48f0_bdb5_d5ebf0fdee97"
      unitRef="pure">0.162</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006124Member_HousingMember"
      decimals="4"
      id="h_259_78ae3317_512a_4f1a_ad08_0c67faae8ac8"
      unitRef="pure">0.112</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006124Member_StateMember"
      decimals="4"
      id="h_260_0edf4598_5a20_4a18_bcbf_d4975d12cac2"
      unitRef="pure">0.095</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006124Member_CountyCitySpecialDistrictSchoolDistrictMember"
      decimals="4"
      id="h_261_29047662_0fe4_4e20_9833_921b8ae10646"
      unitRef="pure">0.076</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006124Member_UtilitiesSectorMember"
      decimals="4"
      id="h_262_7b6b4549_ee2a_4814_af33_a07af9f6d94f"
      unitRef="pure">0.058</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006124Member_EducationMember"
      decimals="4"
      id="h_263_08d3cf43_5728_44e1_aa0b_e9ab43c5d33d"
      unitRef="pure">0.023</oef:PctOfTotalInv>
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      contextRef="TI20260630_C000006124Member_TobaccoMember"
      decimals="4"
      id="h_264_deec35b6_ef83_49c2_a1b4_34988beae2b8"
      unitRef="pure">0.006</oef:PctOfTotalInv>
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      contextRef="TI20260630_C000006124Member_ConstructionAndEngineeringMember"
      decimals="4"
      id="h_265_7b9ae535_d48f_4a47_a003_fcf887fb025b"
      unitRef="pure">0.001</oef:PctOfTotalInv>
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      contextRef="TI20260630_C000006124Member_StandardPoorsAAARatingMember"
      decimals="4"
      id="h_266_0f741861_2e49_4d39_a313_b02a783479c3"
      unitRef="pure">0.064</oef:PctOfTotalInv>
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      contextRef="TI20260630_C000006124Member_StandardPoorsAARatingMember"
      decimals="4"
      id="h_267_19453327_7ef7_4e82_b685_fc9135afda9f"
      unitRef="pure">0.423</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006124Member_StandardPoorsARatingMember"
      decimals="4"
      id="h_268_ff083bd2_909b_45d9_ade0_140dc474bc53"
      unitRef="pure">0.381</oef:PctOfTotalInv>
    <oef:PctOfTotalInv
      contextRef="TI20260630_C000006124Member_StandardPoorsBBBRatingMember"
      decimals="4"
      id="h_269_b8248443_fd48_4df3_a9db_95036b58b237"
      unitRef="pure">0.089</oef:PctOfTotalInv>
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      contextRef="TI20260630_C000006124Member_NRMember"
      decimals="4"
      id="h_270_500ae07e_a3f4_41f3_a20e_c09222dd3e6b"
      unitRef="pure">0.043</oef:PctOfTotalInv>
    <oef:CreditQualityExplanationTextBlock
      contextRef="FY2026_C000006124Member"
      id="t_98_cc613a0b_e11e_8668_8b39_0d15332325ff">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.</oef:CreditQualityExplanationTextBlock>
    <oef:CreditRatingsSelectionTextBlock
      contextRef="FY2026_C000006124Member"
      id="t_97_a1ccd69c_bf04_e50c_de09_76f0c3e7f359">For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc.</oef:CreditRatingsSelectionTextBlock>
    <oef:FundName
      contextRef="FY2026_C000038035Member"
      id="t_91_b6384388_181c_dca0_27fd_266563c30fef">BlackRock Short Duration Muni Fund</oef:FundName>
    <oef:ClassName
      contextRef="FY2026_C000038035Member"
      id="t_92_16ed0250_c905_6cc9_5164_5f1803bff5b0">Class K Shares</oef:ClassName>
    <dei:TradingSymbol
      contextRef="FY2026_C000038035Member"
      id="t_93_bcec1219_fc80_eafd_f99a_31cfc74d2591">MPLMX</dei:TradingSymbol>
    <oef:AnnlOrSemiAnnlStatementTextBlock
      contextRef="FY2026_C000038035Member"
      id="t_82_b5f9d57b_15b8_4675_a0c3_0801eb2571b6">This annual shareholder report contains important information about BlackRock Short Duration Muni Fund (the &#x201c;Fund&#x201d;) for the period of July 1, 2025 to June 30, 2026.</oef:AnnlOrSemiAnnlStatementTextBlock>
    <oef:ShareholderReportAnnualOrSemiAnnual
      contextRef="FY2026_C000038035Member"
      id="t_83_183721c3_429b_40a0_913c_928107f1763b">annual shareholder report</oef:ShareholderReportAnnualOrSemiAnnual>
    <oef:AddlInfoTextBlock
      contextRef="FY2026_C000038035Member"
      id="t_84_2486108a_06c9_488e_80f0_580c932f4fae">You can find additional information about the Fund at &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com/fundreports&lt;/span&gt;. You can also request this information by contacting us at (800) 441&#x2011;7762.</oef:AddlInfoTextBlock>
    <oef:AddlInfoWebsite
      contextRef="FY2026_C000038035Member"
      id="t_85_770bcf58_4046_4b96_9dbd_7767c906b9b9">blackrock.com/fundreports</oef:AddlInfoWebsite>
    <oef:AddlInfoPhoneNumber
      contextRef="FY2026_C000038035Member"
      id="t_86_b6952372_19ee_4094_90aa_a2ae554c5ea0">(800) 441&#x2011;7762</oef:AddlInfoPhoneNumber>
    <oef:ExpensesTextBlock
      contextRef="FY2026_C000038035Member"
      id="t_94_28466664_89e1_50c4_c2f0_639ef5072cfc">&lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;What were the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; costs for the &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt;&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;(based on a hypothetical $10,000 investment)&lt;/div&gt;
&lt;table style="margin-top: 2pt; break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); vertical-align: bottom; text-align: left; padding: 2pt 0 2pt 0;"&gt;Class name&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs of a $10,000&lt;br/&gt;investment&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; color: rgb(0, 0, 0); font-kerning: none; font-weight: bold; line-height: 11pt; background-color: rgb(255, 206, 0); text-align: center; vertical-align: bottom; padding: 2pt 0 2pt 0;"&gt;Costs paid as a percentage of a&lt;br/&gt;$10,000 investment&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; vertical-align: bottom; font-size: 8pt; line-height: 10pt; text-align: left; padding: 4pt 0 2pt 0;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; padding: 4pt 0 2pt 0;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;32&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; vertical-align: bottom; text-align: center; font-size: 8pt; line-height: 10pt; white-space: nowrap; padding: 4pt 0 2pt 0;"&gt;0.31&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:ExpensesTextBlock>
    <oef:ExpensesPaidAmt
      contextRef="FY2026_C000038035Member"
      decimals="INF"
      id="h_271_35965abc_44de_49d8_a284_09ba24c2f459"
      unitRef="USD">32</oef:ExpensesPaidAmt>
    <oef:ExpenseRatioPct
      contextRef="FY2026_C000038035Member"
      decimals="4"
      id="h_272_87586bb6_2ee7_45f7_abfd_0b73c315bcf9"
      unitRef="pure">0.0031</oef:ExpenseRatioPct>
    <oef:FactorsAffectingPerfTextBlock
      contextRef="FY2026_C000038035Member"
      id="t_95_0fd1dc5a_6154_8ee0_ef4b_b38bff4aa447">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 0px;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;&lt;b&gt;How did the &lt;/b&gt; &lt;b&gt;Fund&lt;/b&gt; &lt;b&gt; perform &lt;/b&gt; &lt;b&gt;last year&lt;/b&gt; &lt;b&gt;?&lt;/b&gt;&lt;/div&gt; &lt;/div&gt; &lt;ul style="counter-reset: numberedlisting 0 letteringlisting 0 letteredhead 0 lcrmnhead 0 ucletteredhead 0 ucrmnhead 0; break-inside: avoid-page; page-break-inside: avoid; padding: 0; margin: 3.5pt 0 3.5pt 0;"&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the reporting period ended June 30, 2026, the Fund&#x2019;s Class K Shares returned 4.41%.&lt;/div&gt; &lt;/li&gt; &lt;li style="font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); padding-left: 4pt; list-style-type: disc; font-size: 8pt; line-height: 12.32pt; text-align: justify; margin-left: 34px;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: inherit; margin: 0px;"&gt;For the same period, the Fund&#x2019;s benchmark, the Bloomberg Municipal Bond Index returned 7.03% and the Bloomberg Municipal 1-5 Year Index, returned 3.32%.&lt;/div&gt; &lt;/li&gt; &lt;/ul&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What contributed to performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;The addition of duration (interest rate sensitivity) at the beginning of the period was the largest contributor to performance given the strength in the municipal market through the end of February 2026. Although this aspect of the Fund&#x2019;s positioning detracted thereafter, the net effect was a meaningful positive. A preference for bonds with seven- to 10-year maturities over short-term debt was an additional contributor. Holdings in lower-rated bonds, which benefited from both their above-average yields and a compression in yield spreads, further helped results. At the sector level, positions in corporate-backed, healthcare, and transportation issues were the most notable contributors.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid; margin-bottom: 3.5pt;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-size: 10pt; font-weight: normal; letter-spacing: normal; text-transform: none; color: rgb(0, 0, 0); margin: 0px 0px 5pt 0px;"&gt;What detracted from performance?&lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;At a time of positive market performance, all major segments of the Fund posted gains. A few individual securities finished with losses, however, most notably in the transportation sector.&lt;/div&gt; &lt;/div&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify; margin: 0px 0px 3.5pt 0px;"&gt;&lt;i&gt;The views expressed reflect the opinions of BlackRock as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results.&lt;/i&gt;&lt;/div&gt; &lt;/div&gt;</oef:FactorsAffectingPerfTextBlock>
    <oef:LineGraphTableTextBlock
      contextRef="FY2026_C000038035Member"
      id="t_96_f5ee005c_f2bb_2b48_018c_c582e98a31e8">&lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-bottom: 5pt;"&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); break-inside: avoid-page; page-break-inside: avoid;"&gt; &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;Fund performance&lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Cumulative performance: July 1, 2016 through June 30, 2026&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; margin: 0px;"&gt;Initial investment of $10,000&lt;/div&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); margin-top: 5pt; margin-bottom: 5pt; text-align: center;"&gt;
&lt;img alt="Fund Performance - Growth of 10K" src="g166521chartimages_6938517.jpg" style="width: 525pt;"/&gt; &lt;/div&gt; &lt;div style="font-family: 'arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); padding-left: 10pt; margin-bottom: 7.2pt;"&gt; &lt;div style="font-family: 'arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; text-indent: -10pt; padding: 0px; margin: 0px;"&gt;&#160;See &#x201c;Average annual total returns&#x201d; for additional information on fund performance.&lt;/div&gt; &lt;/div&gt; &lt;/div&gt;</oef:LineGraphTableTextBlock>
    <oef:AvgAnnlRtrTableTextBlock
      contextRef="FY2026_C000038035Member"
      id="t_97_f37b43e4_43f6_4c3f_0842_1f0e51db07a5">
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-style: normal; font-size: 10pt; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Average annual total returns&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-size: 9pt; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;1 Year&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;5 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;10 Years&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-weight: normal; font-style: italic; font-size: 8pt; line-height: 10pt; vertical-align: bottom; white-space: nowrap; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Class K Shares&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;4.41&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;2.25&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.69&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 6pt;"&gt;Bloomberg Municipal Bond Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;7.03&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;1.05&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 0 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 0 0;"&gt;2.15&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; text-align: left; overflow-x: hidden; font-weight: normal; width: 100%; vertical-align: bottom; text-indent: -6pt; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 6pt;"&gt;Bloomberg Municipal 1-5 Year Index&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;3.32&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.55&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 6pt 1.6pt 0;"&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-size: 8pt; line-height: 10pt; padding: 2pt 0 1.6pt 0;"&gt;1.66&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-size: 8pt; line-height: 10pt; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AvgAnnlRtrTableTextBlock>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_C000038035Member"
      id="t_102_62f29bf0_7085_9c45_0e0e_4a42021b518a">Class K Shares</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_C000038035Member"
      decimals="4"
      id="h_298_f097051f_a3b4_3fd2_3dc3_c3c20dbae8d1"
      unitRef="pure">0.0441</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_C000038035Member"
      decimals="4"
      id="h_299_1764d454_4128_baf9_4a5f_04e0e1d60e77"
      unitRef="pure">0.0225</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_C000038035Member"
      decimals="4"
      id="h_300_93a6f650_df8c_645b_fcf9_99abeba18a03"
      unitRef="pure">0.0169</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      id="t_103_8f12e9db_a72a_50c2_e923_0e5934fc835d">Bloomberg Municipal Bond Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_273_0917780f_2456_4062_8bbb_8396c1fc4c6a"
      unitRef="pure">0.0703</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_274_48eae73f_cf8c_4f57_bbde_11bfe0d6b3d9"
      unitRef="pure">0.0105</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipalBondIndexMember"
      decimals="4"
      id="h_275_c18c52e9_ef95_49fc_9ab3_3671a0722fb6"
      unitRef="pure">0.0215</oef:AvgAnnlRtrPct>
    <oef:LineGraphAndTableMeasureName
      contextRef="FY2026_BloombergMunicipal15YearIndexMember"
      id="t_104_74464fcc_c75d_bee5_1fac_853944c058c6">Bloomberg Municipal 1-5 Year Index</oef:LineGraphAndTableMeasureName>
    <oef:AvgAnnlRtrPct
      contextRef="FY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_276_f9809dbe_900c_4496_93c6_9c0eb245ccb7"
      unitRef="pure">0.0332</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="FiveY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_277_232917cf_18bb_4ae8_83a8_238be93e1118"
      unitRef="pure">0.0155</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="TenY2026_BloombergMunicipal15YearIndexMember"
      decimals="4"
      id="h_278_920ba0a9_8083_4c30_aa0e_64a6aa3f5432"
      unitRef="pure">0.0166</oef:AvgAnnlRtrPct>
    <oef:AddlFundStatisticsTextBlock
      contextRef="FY2026_C000038035Member"
      id="t_98_c49e65bd_6d96_8868_dbff_6231d6e5dbf6">
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); vertical-align: bottom; width: auto; font-weight: bold; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;Key Fund statistics&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Assets&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;505,136,384&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Number of Portfolio Holdings&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;227&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 0 6pt;"&gt;Net Investment Advisory Fees&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 0 6pt;"&gt;&lt;span style="float: none;"&gt;$&lt;/span&gt;1,191,659&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-size: 8pt; line-height: 10pt; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;Portfolio Turnover Rate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; white-space: nowrap; font-size: 8pt; line-height: 10pt; width: 12%; vertical-align: bottom; padding: 1.6pt 6pt 1.6pt 6pt;"&gt;44&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;</oef:AddlFundStatisticsTextBlock>
    <us-gaap:AssetsNet
      contextRef="TI20260630_C000038035Member"
      decimals="INF"
      id="h_279_67b370b7_c741_4f76_bcb1_988078971894"
      unitRef="USD">505136384</us-gaap:AssetsNet>
    <oef:HoldingsCount
      contextRef="TI20260630_C000038035Member"
      decimals="INF"
      id="h_280_844a71f0_161a_451b_ab3a_f1f457162c0c"
      unitRef="Holding">227</oef:HoldingsCount>
    <oef:AdvisoryFeesPaidAmt
      contextRef="FY2026_C000038035Member"
      decimals="INF"
      id="h_281_eb28f90a_7bb4_4fd5_8dd8_381fd504493a"
      unitRef="USD">1191659</oef:AdvisoryFeesPaidAmt>
    <us-gaap:InvestmentCompanyPortfolioTurnover
      contextRef="FY2026_C000038035Member"
      decimals="4"
      id="h_282_a989375e_57ad_4aa2_85f6_0e81d39b8fa8"
      unitRef="pure">0.44</us-gaap:InvestmentCompanyPortfolioTurnover>
    <oef:PerformancePastDoesNotIndicateFuture
      contextRef="FY2026_C000038035Member"
      id="t_99_f98af39b_4a97_9e6b_5192_890a48c76598">Past performance is not an indication of future results.</oef:PerformancePastDoesNotIndicateFuture>
    <oef:NoDeductionOfTaxesTextBlock
      contextRef="FY2026_C000038035Member"
      id="t_100_50dcdf93_883b_5f20_5451_ac9129159475">Performance results do not reflect the deduction of taxes that a shareholder would pay on fund distributions or on the redemption or sale of fund shares.</oef:NoDeductionOfTaxesTextBlock>
    <oef:UpdPerfInfoLocationTextBlock
      contextRef="FY2026_C000038035Member"
      id="t_107_7ec961d4_6dda_5121_7c53_ee0d46055042">Visit &lt;span style="color: rgb(0, 0, 0); font-weight: bold; text-decoration-line: none; font-family: 'arial'; font-size: 8pt; line-height: 10.4pt; text-align: justify;"&gt;blackrock.com&lt;/span&gt; for more recent performance information.</oef:UpdPerfInfoLocationTextBlock>
    <oef:HoldingsTableTextBlock
      contextRef="FY2026_C000038035Member"
      id="t_90_cb6d7371_5107_48f7_a24e_4a1264456be1"> &lt;div style="font-family: 'arial'; font-kerning: none; font-weight: bold; font-size: 10pt; color: rgb(0, 0, 0); margin: 0px 0px -0.18pt 0px;"&gt;What did the Fund invest in?&lt;/div&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; text-align: justify; font-size: 9pt; line-height: 11.4pt; margin: 0px;"&gt;(as of June 30, 2026)&lt;/div&gt;  
&lt;table style="page-break-inside: avoid; break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 0 1.5pt 0;"&gt;&lt;strong&gt;Sector&lt;/strong&gt;&lt;strong&gt; allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-family: 'arial'; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; vertical-align: bottom; text-indent: -6pt; width: auto; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Sector&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;em&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/em&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 6pt;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Corporate&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;28.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Transportation&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;18.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Health&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;16.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Housing&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;11.2&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;State&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;9.5&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;County/City/Special District/School District&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;7.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Utilities&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;5.8&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Education&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;2.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Tobacco&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;0.6&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;Construction &amp;amp; Engineering&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;0.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; width: auto; white-space: nowrap; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
&lt;table style="break-inside: avoid-page; page-break-inside: avoid; table-layout: auto; width: 100%; border-collapse: collapse; margin-top: 0px;"&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; background-color: rgb(255, 206, 0); border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td colspan="3" style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); white-space: nowrap; vertical-align: bottom; width: auto; font-weight: normal; font-style: normal; font-size: 10pt; line-height: normal; text-align: left; text-indent: 0; letter-spacing: normal; text-transform: none; font-kerning: none; margin-top: 0; margin-bottom: 0; padding: 2pt 6pt 1.5pt 0;"&gt;&lt;strong&gt;Credit quality allocation&lt;/strong&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-after: avoid; break-inside: avoid-page; page-break-inside: avoid; height: auto; font-style: italic; font-size: 8pt; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;Credit Rating&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;Percent of Total&lt;br/&gt;Investments&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; text-align: left; width: auto; font-size: 8pt; white-space: nowrap; vertical-align: bottom; padding: 1.6pt 0 0 0;"&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AAA/Aaa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;6.4&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;AA/Aa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;42.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;A&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;38.1&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 0 6pt;"&gt;BBB/Baa&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 0 0;"&gt;8.9&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 0 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; line-height: 10pt; border-bottom-color: rgb(0, 0, 0); border-bottom-style: solid; border-bottom-width: 0.5pt;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; font-weight: normal; text-align: left; width: 100%; vertical-align: bottom; text-indent: -6pt; padding: 1.6pt 0 1.6pt 6pt;"&gt;N/R&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; text-align: right; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 2pt 0 1.6pt 0;"&gt;4.3&lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); vertical-align: bottom; font-kerning: none; text-align: left; white-space: nowrap; width: auto; font-style: normal; font-size: 8pt; line-height: 10pt; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial; padding: 1.6pt 0 1.6pt 0;"&gt;&lt;span style="visibility: hidden; margin-left: -7pt;"&gt;%&lt;/span&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/table&gt;  
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&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: initial; text-indent: 0; padding: 1.6pt 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(a)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; text-indent: 0; width: 100%; padding: 1.6pt 0 0 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, sector sub-classifications may differ from those utilized by the Fund for compliance purposes.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(b)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;Excludes short-term securities.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; 
&lt;tr style="break-inside: avoid-page; page-break-inside: avoid; height: auto; border-bottom-color: initial; border-bottom-style: none; border-bottom-width: initial;"&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; overflow-x: hidden; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; width: initial; vertical-align: top; text-indent: 0; padding: 0 6pt 0 0;"&gt; &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;&#x200b;&lt;sup style="vertical-align: 0.5em; font-size: smaller; line-height: 0px;"&gt;(c)&lt;/sup&gt;&lt;/div&gt; &lt;/td&gt; 
&lt;td style="break-inside: avoid-page; page-break-inside: avoid; font-family: 'Arial'; font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; width: 100%; padding: 0;"&gt;  &lt;div style="font-weight: normal; color: rgb(0, 0, 0); font-kerning: none; font-family: 'arial'; font-style: normal; font-size: 7pt; line-height: 9pt; text-align: justify; vertical-align: top; padding: 0px; margin: 0px;"&gt;For purposes of this report, credit quality ratings shown above reflect the highest rating assigned by either S&amp;amp;P Global Ratings or Moody&#x2019;s Investors Service, Inc. if ratings differ. These rating agencies are independent, nationally recognized statistical rating organizations and are widely used. Investment grade ratings are credit ratings of BBB/Baa or higher. Below investment grade ratings are credit ratings of BB/Ba or lower. Investments designated N/R are not rated by either rating agency. Unrated investments do not necessarily indicate low credit quality. Credit quality ratings are subject to change.&lt;/div&gt;  &lt;/td&gt; &lt;/tr&gt; &lt;/table&gt; </oef:HoldingsTableTextBlock>
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