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      id="a4e09ac7-c3ad-4847-af2b-94f4c954dd27">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;The fund seeks to provide income exempt from regular federal income tax. The fund is an actively-managed exchange-traded fund (&#x201c;ETF&#x201d;) that does not seek to replicate the performance of a specific index.&lt;/span&gt;</oef:ObjectivePrimaryTextBlock>
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      id="bd150762-2b54-4321-96de-ea479a934b65">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;These are the fees and expenses that you will pay when you buy, hold and sell shares. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;You may also pay other fees, such as brokerage commissions and other fees to financial intermediaries on the purchase and sale of shares of the fund, which are not reflected in the table and example below.&lt;/span&gt;</oef:ExpenseNarrativeTextBlock>
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      id="cbb627ab-4080-42cc-9097-edb0c21fa52f">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;This Example is intended to help you compare the cost of investing in the fund with the cost of investing in other funds. The Example assumes that you invest $10,000 in the fund for the time periods indicated and then sell all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the fund's operating expenses remain the same. The Example does not take into account brokerage commissions that you may pay on your purchases and sales of shares of the fund. It also does not include the transaction fees on purchases and redemptions of Creation Units (defined herein), because those fees will not be &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;imposed on retail investors. Although your actual costs may be higher or lower, based on these assumptions your costs would be:&lt;/span&gt;</oef:ExpenseExampleNarrativeTextBlock>
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      id="c6b30b7c-cfc6-49c9-b9ff-5ef86f69fa3a">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Main investments.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Under normal circumstances, the fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in securities issued by municipalities across the United States and its territories that are classified as &#x201c;municipal infrastructure revenue&#x201d; bonds whose income is free from regular federal income tax.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;For purposes of this 80% investment policy, &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;&#x201c;municipal infrastructure revenue bonds&#x201d; are those municipal securities whose proceeds are used for infrastructure purposes in one of the following areas: transportation (airports, seaports, bridges, toll roads, tunnels, parking facilities, or similar); recreation (convention centers, stadiums, sports complexes, or similar); utility (electric public power, water/sewer, sanitation, or similar); or industrial economic development (solid waste recovery, malls, shopping centers, or similar); and whose principal and interest repayments come from a pledged revenue &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;source (e.g., tolls, sales tax, registration fees, user fees) or a double-barreled revenue stream (a pledged revenue stream and a general obligation pledge).&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;The fund considers &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;any investments in municipal securities that pay interest subject to the alternative minimum tax (&#x201c;AMT&#x201d;) as part of the 80% of the fund&#x2019;s net assets that must be invested in municipal securities.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;The fund invests in municipal securities of any credit quality or maturity exempt from regular federal income tax that are issued by states, cities, counties, districts, their respective agencies, or other tax-exempt issuers and have been issued with the intention of funding federal, state and local infrastructure projects, such as water and sewer systems, public sewer systems, toll roads, bridges, tunnels and many other public use projects. The fund may invest in municipal securities that are subject to the AMT and state and local taxes. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-style:italic;"&gt;The fund may invest an unlimited amount of its net assets in municipal securities whose income is subject to the AMT.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;The fund may invest in private activity bonds, industrial development bonds, special tax bonds and transportation bonds. Private activity bonds are issued by municipalities and other public authorities to finance development of industrial facilities for use by a private enterprise. Industrial development bonds are a specific type of revenue bond backed by the credit and security of a private user and therefore have more potential risk. The interest from industrial development bonds, when distributed by the fund as &#x201c;exempt-interest dividends&#x201d; to shareholders, may be subject to the US federal alternative minimum tax applicable to individuals. Special tax bonds are payable for and secured by the revenues derived by a municipality from a particular tax (e.g., tax on the rental of a hotel room, on the purchase of food and beverages, on the rental of automobiles or on the consumption of liquor). Special tax bonds are not secured by the general tax revenues of the municipality, and they do not represent general obligations of the municipality. Transportation bonds are obligations of issuers that own and operate public transit systems, ports, highways, turnpikes, bridges and other transportation systems.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Under normal market conditions, portfolio management intends to invest primarily (i.e., more than 50% of the fund&#x2019;s assets) in investment grade municipal securities, or if unrated, municipal securities determined by the Advisor to be of similar quality. Although portfolio management may adjust the dollar-weighted average effective maturity of the fund&#x2019;s portfolio, portfolio management generally intends to keep it between five and ten years.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Management process.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; Portfolio management looks for securities that appear to offer the best opportunity to meet the fund&#x2019;s investment objective. In making investment decisions, portfolio management typically weighs a number of factors against each other, from economic outlooks and possible interest rate movements to changes in supply and demand within the municipal bond market. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;When evaluating any individual security and its issuer, portfolio management may consider a number of factors including the security&#x2019;s credit quality and terms, such as coupon, maturity date and call date, as well as the issuer&#x2019;s capital structure, leverage, and ability to meet its current obligations.&lt;/span&gt;</oef:StrategyNarrativeTextBlock>
    <fnd:NmRule35d1EightyPctInvstmntPlcyTextBlock
      contextRef="S000040498"
      id="x_328ea565-cc96-4304-a892-4435213fdd7c">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Under normal circumstances, the fund will invest at least 80% of its net assets, plus the amount of any borrowings for investment purposes, in securities issued by municipalities across the United States and its territories that are classified as &#x201c;municipal infrastructure revenue&#x201d; bonds whose income is free from regular federal income tax.&lt;/span&gt;</fnd:NmRule35d1EightyPctInvstmntPlcyTextBlock>
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      contextRef="S000040498"
      id="cffcd0a6-9d7e-48e6-953d-30736b12f95f">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;For purposes of this 80% investment policy, &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;&#x201c;municipal infrastructure revenue bonds&#x201d; are those municipal securities whose proceeds are used for infrastructure purposes in one of the following areas: transportation (airports, seaports, bridges, toll roads, tunnels, parking facilities, or similar); recreation (convention centers, stadiums, sports complexes, or similar); utility (electric public power, water/sewer, sanitation, or similar); or industrial economic development (solid waste recovery, malls, shopping centers, or similar); and whose principal and interest repayments come from a pledged revenue &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;source (e.g., tolls, sales tax, registration fees, user fees) or a double-barreled revenue stream (a pledged revenue stream and a general obligation pledge).&lt;/span&gt;</fnd:NmRule35d1TermDfnSmryTextBlock>
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      contextRef="S000040498"
      id="d6c4fc3b-928b-412e-becd-372f4765aca0">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;The fund considers &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;any investments in municipal securities that pay interest subject to the alternative minimum tax (&#x201c;AMT&#x201d;) as part of the 80% of the fund&#x2019;s net assets that must be invested in municipal securities.&lt;/span&gt;</fnd:NmRule35d1TermSlctnCritSmryTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskLoseMoneyMember"
      id="x_80b147e8-6250-416f-b8b0-30b0e7be6ea1">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;There are several risk factors that could hurt the fund&#x2019;s performance, cause you to lose money or cause the fund&#x2019;s performance to trail that of other investments. The fund may not achieve its investment objective, and is not intended to be a complete investment program. &lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskNotInsuredDepositoryInstitutionMember"
      id="b1d75c44-62aa-40f6-936f-0864a168d2f9">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;An investment&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; in the fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskMunicipalSecuritiesRiskMember"
      id="x_7c34ccdc-49b7-42f1-acb2-e9f76b7a8611">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Municipal securities risk. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Municipal instruments may be susceptible to periods of economic stress, which could affect the market values and marketability of many or all municipal obligations of issuers in a state, U.S. territory, or possession. Municipal securities are subject to the risk that litigation, legislation or other political events, local business or economic conditions or the bankruptcy of the issuer could have a significant effect on an issuer&#x2019;s ability to make payments of principal and/or interest. Certain municipalities may have difficulty meeting their obligations due to, among other reasons, changes in underlying demographics. Municipal securities can be significantly affected by political changes as well as uncertainties in the municipal market related to taxation, legislative changes or the rights of municipal security holders. Because many municipal securities are issued to finance similar projects, especially those relating to education, health care, transportation, utilities and water and sewer, conditions in those sectors can affect the overall municipal market. In addition, changes in the financial condition of an individual municipal issuer can affect the overall municipal market. Municipal securities may include revenue bonds, which are generally backed by revenue from a specific project or tax. The issuer of a revenue bond makes interest and principal payments from revenues generated from a particular source or facility, such as a tax on particular property or revenues generated from a municipal water or sewer utility or an airport.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Revenue bonds generally are not backed by the full faith and credit and general taxing power of the issuer. The market for municipal bonds may be less liquid than for taxable bonds. There may be less information available on the financial condition of issuers of municipal securities than for public corporations.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Municipal securities may also have exposure to potential physical risks resulting from climate change, including extreme weather, flooding and fires. Climate risks, if they materialize, can adversely impact a municipal issuer&#x2019;s financial plans in current or future years or may impair a facility &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;or other source generating revenues backing a municipal issuer&#x2019;s revenue bonds. As a result, the impact of climate risks may adversely impact the value of the fund&#x2019;s shares.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskInterestRateRiskMember"
      id="ba26bd83-d49b-4131-8114-b9bfe0d6cff9">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Interest rate risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; When interest rates rise, prices of debt securities generally decline. The longer the duration of the fund&#x2019;s debt securities, the more sensitive the fund will be to interest rate changes. (As a general rule, a 1% rise in interest rates means a 1% fall in value for every year of duration.) Interest rates can change in response to the supply and demand for credit, government and/or central bank monetary policy and action, inflation rates and other factors. Changes in monetary policy made by central banks or governments are likely to affect the level of interest rates. Changing interest rates may have unpredictable effects on markets, may result in heightened market volatility and potential illiquidity and may detract from fund performance to the extent the fund is exposed to such interest rates and/or volatility. Rising interest rates could cause the value of the fund's investments &#x2014; and therefore its share price as well &#x2014; to decline. A rising interest rate environment may cause investors to move out of fixed-income securities and related markets on a large scale, which could adversely affect the price and liquidity of such securities and could also result in increased redemptions from the fund.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskCreditRiskMember"
      id="d3859f79-8896-4770-829c-997c11f5afbf">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Credit risk. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;The fund&#x2019;s performance could be hurt if an issuer of a debt security suffers an adverse change in financial condition that results in a payment default, security downgrade or inability to meet a financial obligation. Credit risk is greater for lower-rated securities. Because the issuers of junk bonds may be in uncertain financial health, the prices of their debt securities could be more vulnerable to bad economic news, or even the expectation of bad news, than investment-grade debt securities. Credit ratings may not be an accurate assessment of credit risk.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskMarketDisruptionRiskMember"
      id="d2f025af-de76-4bc9-98d6-5c703cb742a9">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Market disruption risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; Economies and financial markets throughout the world have become increasingly interconnected, which has increased the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. This includes reliance on global supply chains that are susceptible to disruptions resulting from, among other things, war and other armed conflicts, tariffs, extreme weather events, and natural disasters. Such supply chain disruptions can lead to, and have led to, economic and market disruptions that have far-reaching effects on financial markets worldwide. The value of the fund&#x2019;s investments may be negatively affected by adverse changes in overall economic or market conditions, such as the level of economic activity and productivity, unemployment and labor force participation rates, inflation or deflation (and expectations for inflation or deflation), interest rates, demand and supply for particular products or resources including labor, debt levels and credit ratings, and trade policies, among other factors. Such adverse conditions may contribute to an overall economic contraction across &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;entire economies or markets, which may negatively impact the profitability of issuers operating in those economies or markets. In addition, geopolitical and other globally interconnected occurrences, including war and other armed conflicts, terrorism, economic uncertainty or financial crises, contagion, tariffs and trade disputes, government debt crises (including defaults or downgrades) or uncertainty about government debt payments, government shutdowns, public health crises, natural disasters, supply chain disruptions, climate change and related events or conditions, have led, and in the future may lead, to disruptions in the US and world economies and markets, which may increase financial market volatility and have significant adverse direct or indirect effects on the fund and its investments. Ongoing trade disputes between the United States and other countries may lead to tariffs and investment restrictions, negatively impacting affected companies and their securities. These disputes can also harm the economies of the United States and its trading partners, as well as financial markets overall. Adverse market conditions or disruptions could cause the fund to lose money, experience significant redemptions, and encounter operational difficulties. Although multiple asset classes may be affected by adverse market conditions or a particular market disruption, the duration and effects may not be the same for all types of assets.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Current military and other armed conflicts in various geographic regions, including those in Europe and the Middle East, among others, can lead to, and have led to, economic and market disruptions, which may not be limited to the geographic region in which the conflict is occurring. Such conflicts can also result, and have resulted in some cases, in sanctions being levied by the United States, the European Union and/or other countries against countries or other actors involved in the conflict. In addition, such conflicts and related sanctions can adversely affect regional and global energy, commodities, financial and other markets and thus could affect the value of the fund's investments. The extent and duration of any military or other armed conflict, related sanctions and resulting economic and market disruptions are impossible to predict, but could be substantial.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Other market disruption events include pandemic spread of viruses, such as the novel coronavirus known as COVID-19, which have caused significant uncertainty, market volatility, decreased economic and other activity, increased government activity, including economic stimulus measures, and supply chain disruptions, and may adversely affect the fund and its investments.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;In addition, markets are becoming increasingly susceptible to disruption events resulting from the use of new and emerging technologies, such as artificial intelligence, to engage in cyber-attacks or to take over the websites and/or social media accounts of companies, governmental entities or public officials, or to otherwise pose as or &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;impersonate such, which then may be used to disseminate false or misleading information that can cause volatility in financial markets or for the securities of a particular company, group of companies, industry or other class of assets.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Adverse market conditions or particular market disruptions, such as those discussed above, may magnify the impact of each of the other risks described in this &#x201c;MAIN RISKS&#x201d; section and may increase volatility in one or more markets in which the fund invests leading to the potential for greater losses for the fund.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskFixedIncomeSecuritiesRiskMember"
      id="a9cd47f1-02a9-4427-a9bf-d31619420c5d">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Fixed income securities risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; Fixed-income securities are subject to the risk of the issuer&#x2019;s inability to meet principal and interest payments on its obligations (i.e., credit risk) and are subject to price volatility resulting from, among other things, interest rate sensitivity, market perception of the creditworthiness of the issuer, willingness of broker-dealers and other market participants to make markets in the applicable securities, and general market liquidity (i.e., market risk). Lower rated fixed-income securities have greater volatility because there is less certainty that principal and interest payments will be made as scheduled. There is a risk that a lack of liquidity or other adverse credit market conditions may hamper the fund&#x2019;s ability to transact in fixed income securities.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskMarketRiskMember"
      id="x_9b193e06-84a6-4a44-aafc-42b6501acb6f">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Market risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; Deteriorating market conditions might cause a general weakness in the market that reduces the prices of securities in that market. Developments in a particular class of debt securities or the stock market could also adversely affect the fund by reducing the relative attractiveness of debt securities as an investment.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskPrivateActivityBondsRiskMember"
      id="x_8d74647d-8f0f-4132-b84a-bb457d393dbf">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Private activity bonds risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; The issuers of private activity bonds in which the fund may invest may be negatively impacted by conditions affecting either the general credit of the user of the private activity project or the project itself. The fund&#x2019;s private activity bond holdings also may pay interest subject to the AMT.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskIndustrialDevelopmentBondRiskMember"
      id="d3a4c61d-9fdc-405e-9d23-b81c24770dd2">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Industrial development bond risk. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Industrial development bonds are issued by or on behalf of public authorities to obtain funds to finance various public and/or privately operated facilities, including those for business and manufacturing, housing, sports, pollution control, airport, mass transit, port and parking facilities. Industrial development bonds are normally secured only by the revenues from the project and not by state or local government tax payments. Consequently, the credit quality of these securities is dependent upon the ability of the user of the facilities financed by the bonds and any guarantor to meet its financial obligations. Payment of interest on and repayment of principal on such bonds are the responsibility of the user and/or any guarantor. These bonds are subject to a wide variety of risks, many of which relate to the nature of the specific project. Generally, the value and credit quality of these bonds are sensitive to the risks related to an economic slowdown.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskSpecialTaxBondRiskMember"
      id="cef290a8-9737-423c-bd6d-9f7a3b13bd82">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Special tax bond risk. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Special tax bonds are usually backed and payable through a single tax, or series of special taxes such as incremental property taxes. The failure of the tax levy to generate adequate revenue to pay the debt service on the bonds may cause the value of the bonds to decline. Adverse conditions and developments affecting a particular project may result in lower revenues to the issuer of the municipal securities, which may adversely affect the value of the fund&#x2019;s portfolio.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskTransportationBondRiskMember"
      id="cd2c4610-f13a-4d49-b4e8-e0f13edcff54">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Transportation bond risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; Transportation bonds may be issued to finance the construction of airports, toll roads, highways or other transit facilities. Airport bonds are dependent on the general stability of the airline industry and on the stability of a specific carrier who uses the airport as a hub. Air traffic generally follows broader economic trends and is also affected by the price and availability of fuel. Toll road bonds are also affected by the cost and availability of fuel as well as toll levels, the presence of competing roads and the general economic health of an area. Fuel costs and availability also affect other transportation related securities, as do the presence of alternate forms of transportation, such as public transportation. Municipal securities that are issued to finance a particular transportation project often depend solely on revenues from that project to make principal and interest payments. Adverse conditions and developments affecting a particular project may result in lower revenues to the issuer of the municipal securities.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskWaterAndSewerBondRiskMember"
      id="x_1f1e1fa0-0ade-42e4-9ac1-421c46716c00">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Water and sewer bond risk. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Water and sewer revenue bonds are often considered to have relatively secure credit as a result of their issuer&#x2019;s importance, monopoly status and generally unimpeded ability to raise rates. Despite this, lack of water supply due to insufficient rain, run off or snowpack has led to past defaults. Further, public resistance to rate increases, costly environmental litigation and federal environmental mandates are challenges faced by issuers of water and sewer bonds.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskActiveETFManagementRiskMember"
      id="b5ebc228-0107-44bd-adf8-d47578ffd484">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Active ETF management risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; As an actively-managed ETF, the fund is subject to the risk that the investment strategies, techniques and analyses utilized by the Advisor in managing the fund may be flawed and may not produce the desired results. This could cause the fund to lose value or its investment results to lag relevant benchmarks or other funds with similar objectives. Additionally, as an actively-managed ETF that does not seek to replicate the performance of a specific index, the fund may have a higher degree of portfolio turnover and incur higher transaction costs than passively-managed ETFs that do seek to replicate the performance of a specific index.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskSecuritySelectionRiskMember"
      id="e451cf9d-70ca-477a-b9c3-37d5509d040e">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Security selection risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; The securities in the fund&#x2019;s portfolio may decline in value. Portfolio management could be wrong in its analysis of industries, companies, economic trends, the relative attractiveness of different securities or other matters.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskGeographicFocusRiskMember"
      id="ce789f77-7dcc-4b36-a8cd-de5daea0528e">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Geographic focus risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; To the extent that the fund invests a significant portion of its assets in the securities of issuers in a single state, region or sector of the municipal securities market, performance can be more volatile than that of a fund that invests more broadly. As an example, factors affecting a state, region or sector, such as severe fiscal difficulties, an economic downturn, court rulings, increased expenditures on domestic security or reduced monetary support from the federal government, could over time impair the ability of a state, region or sector to repay its obligations.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskFocusRiskMember"
      id="e9d347b5-0d68-4cca-92e5-1868a4d7fce3">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Focus risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; To the extent that the fund focuses its investments in particular industries, asset classes or sectors of the economy, any market price movements, regulatory or technological changes, or economic conditions affecting issuers in those industries, asset classes or sectors may have a significant impact on the fund&#x2019;s performance. The fund may become more focused in particular industries, asset classes or sectors of the economy as a result of changes in the valuation of the fund&#x2019;s investments or fluctuations in the fund&#x2019;s assets, and the fund is not required to reduce such exposures under these circumstances.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskPrepaymentRiskMember"
      id="x_017427ef-6ee8-4e53-8568-bde239d3ef05">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Prepayment and extension risk. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;When interest rates fall, issuers of high interest debt obligations may pay off the debts earlier than expected (prepayment risk), and the fund may have to reinvest the proceeds at lower yields. When interest rates rise, issuers of lower interest debt obligations may pay off the debts later than expected (extension risk), thus keeping the fund&#x2019;s assets tied up in lower interest debt obligations. Ultimately, any changes or unexpected behavior in interest rates could increase the volatility of the fund&#x2019;s share price and yield and could hurt fund performance.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskInflationRiskMember"
      id="c296c627-d939-4519-a07f-b972edfc77a4">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Inflation risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; Inflation risk is the risk that the real value of certain assets or real income from investments (the value of such assets or income after accounting for inflation) will be less in the future as inflation decreases the value of money. Inflation, and investors&#x2019; expectation of future inflation, can impact the current value of the fund's portfolio, resulting in lower asset values and losses to shareholders. This risk may be elevated compared to historical market conditions and could be impacted by monetary policy measures and the current interest rate environment.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskLiquidityRiskMember"
      id="f66d1b17-aee1-428d-b3de-4898ccf91015">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Liquidity risk. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;In certain situations, it may be difficult or impossible to sell an investment at an acceptable price. This risk can be ongoing for any security that does not trade actively or in large volumes, for any security that trades primarily on smaller markets, and for investments that typically trade only among a limited number of large investors (such as restricted securities). In unusual market conditions, even normally liquid securities may be affected by a degree of liquidity risk. This may affect only certain securities or an overall securities market.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Although the fund primarily seeks to redeem shares of the fund on an in-kind basis, if the fund is forced to sell underlying investments at reduced prices or under unfavorable &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;conditions to meet redemption requests or other cash needs, the fund may suffer a loss or recognize a gain that may be distributed to shareholders as a taxable distribution. This may be magnified in circumstances where redemptions from the fund may be higher than normal.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskTaxRiskMember"
      id="acf756a7-1cd1-42f4-8da7-e512b17cb0ed">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Tax risk. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Income from municipal securities held by the fund could be declared taxable because of unfavorable changes in tax laws, adverse interpretations by the Internal Revenue Service or state tax authorities, or noncompliant conduct of a securities issuer. In such event, the value of such securities would likely fall, hurting fund performance, and shareholders may be required to pay additional taxes. In addition, the fund may invest an unlimited amount of its net assets in municipal securities whose income is subject to the AMT. Further, a portion of the fund&#x2019;s otherwise exempt-interest distributions may be taxable to those shareholders subject to the AMT.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskPricingRiskMember"
      id="x_27107b6f-4be0-4337-8d6d-c16f321aa997">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Pricing risk. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;If market conditions make it difficult to value some investments, the fund may value these investments using more subjective methods and the value determined for an investment may be materially different from the value realized upon such investment&#x2019;s sale.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskIssuerSpecificRiskMember"
      id="b24058a3-cfa6-41df-9245-3d6d0fe10361">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Issuer-specific risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; The value of an individual security or particular type of security may be more volatile than the market as a whole and may perform differently from the value of the market as a whole.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskMarketPriceRiskMember"
      id="x_9c0b101a-fb8f-4e7e-b770-51b1e3c0c26f">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Market price risk. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Fund shares are listed for trading on an exchange and are bought and sold in the secondary market at market prices. The market prices of shares will fluctuate, in some cases materially, in response to changes in the NAV and supply and demand for shares. As a result, the trading prices of shares may deviate significantly from the NAV during periods of market volatility. The Advisor cannot predict whether shares will trade above, below or at their NAV. Given the fact that shares can be created and redeemed in Creation Units (defined below), the Advisor believes that large discounts or premiums to the NAV of shares should not be sustained in the long-term. If market makers exit the business or are unable to continue making markets in fund shares, shares may trade at a discount to NAV like closed-end fund shares and may even face delisting (that is, investors would no longer be able to trade shares in the secondary market). Further, while the creation/redemption feature is designed to make it likely that shares normally will trade close to the value of the fund&#x2019;s holdings, disruptions to creations and redemptions, including disruptions at market makers, APs or other market participants, or during periods of significant market volatility, may result in market prices that differ significantly from the value of the fund&#x2019;s holdings. Although market makers will generally take advantage of differences between the NAV and the market price of fund shares through arbitrage opportunities, there is no guarantee that they will do so. In addition, the securities held by the fund may be traded in markets that close at a different time than the exchange on which the fund&#x2019;s shares trade. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Liquidity in those securities may be reduced after the applicable closing times. Accordingly, during the time when the exchange is open but after the applicable market closing, fixing or settlement times, bid-ask spreads and the resulting premium or discount to the shares&#x2019; NAV is likely to widen. If the markets for the fund&#x2019;s portfolio securities experience decreased liquidity, the trading markets for the fund&#x2019;s shares may also become less liquid with corresponding widening in the bid-ask spreads and differences between the market price and NAV of the fund&#x2019;s shares. Further, secondary markets may be subject to irregular trading activity, wide bid-ask spreads and extended trade settlement periods, which could cause a material decline in the fund&#x2019;s market price. The fund&#x2019;s investment results are measured based upon the daily NAV of the fund. Investors purchasing and selling shares in the secondary market may not experience investment results consistent with those experienced by those APs creating and redeeming shares directly with the fund at NAV.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskOperationalAndTechnologyRiskMember"
      id="x_292e8a53-ac15-4601-bb7b-ed8bb1f57347">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Operational and technology risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; The fund and the entities with which it interacts directly or indirectly, including the fund&#x2019;s service providers and counterparties, issuers of securities held by the fund and other market participants, are susceptible to operational and technology risks, including those related to human errors, processing errors, communication errors, system failures, cybersecurity incidents, and the use of artificial intelligence, among others, which may impair the fund&#x2019;s operations and/or result in losses for the fund. For example, the fund&#x2019;s or its service providers&#x2019; assets or sensitive or confidential information may be misappropriated, data may be corrupted and operations may be disrupted (e.g., cyber-attacks, operational failures or broader disruptions may cause the release of private shareholder information or confidential fund information, interfere with the processing of shareholder transactions, impact the ability to calculate the fund&#x2019;s net asset value and impede trading). Market events and disruptions also may trigger a volume of transactions that overloads current information technology and communication systems and processes, impacting the ability to conduct the fund&#x2019;s operations.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;While the fund and its service providers may establish business continuity and other plans and processes that seek to address the possibility of and fallout from cyber-attacks, disruptions or failures, there are inherent limitations in such plans and systems, including that they do not apply to third parties, such as fund counterparties, issuers of securities held by the fund or other market participants, as well as the possibility that certain risks have not been identified or that unknown threats may emerge in the future and there is no assurance that such plans and processes will be effective. Among other situations, disruptions (for example, pandemics or health crises) that cause prolonged periods of remote work or significant employee absences at the fund&#x2019;s service providers could impact the ability to conduct the fund&#x2019;s operations. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;In addition, the fund cannot directly control any cybersecurity plans and systems, including artificial intelligence, put in place by its service providers, fund counterparties, issuers of securities held by the fund or other market participants.&lt;/span&gt;</oef:RiskTextBlock>
    <oef:RiskTextBlock
      contextRef="S000040498_RiskAuthorizedParticipantConcentrationRiskMember"
      id="x_7dbd96ad-e2b5-4ca0-bb4c-13f4db3fd22a">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;"&gt;Authorized Participant concentration risk.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; The fund may have a limited number of financial institutions that may act as Authorized Participants (&#x201c;APs&#x201d;). Only APs who have entered into agreements with the fund&#x2019;s distributor may engage in creation or redemption transactions directly with the fund (as described in the section of this Prospectus entitled &#x201c;Buying and Selling Shares&#x201d;). If those APs exit the business or are unable to process creation and/or redemption orders, (including in situations where APs have limited or diminished access to capital required to post collateral) and no other AP is able to step forward to create and redeem in either of these cases, shares may trade at a discount to NAV like closed-end fund shares and may even face delisting (that is, investors would no longer be able to trade shares in the secondary market).&lt;/span&gt;</oef:RiskTextBlock>
    <oef:BarChartAndPerformanceTableHeading
      contextRef="S000040498"
      id="bb4aded4-1be0-4edf-bc79-5d3af29edba0">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;font-weight:bold;text-transform:uppercase;"&gt;Past Performance&lt;/span&gt;</oef:BarChartAndPerformanceTableHeading>
    <oef:PerformanceNarrativeTextBlock
      contextRef="S000040498"
      id="x_3c7607b2-b837-4697-b644-960c30e6f68c">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;How a fund's returns vary from year to year can give an idea of its risk; so can comparing fund performance to market performance as measured by one or more indexes. The fund&#x2019;s average annual total returns are compared to a required broad-based securities market index and may also be compared to a more narrowly based index that the Advisor believes more closely aligns with the fund&#x2019;s investment strategy.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; Past performance may not indicate future &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;results.&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; All performance figures below assume that dividends&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; and distributions were reinvested. For more recent performance figures, go to &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Xtrackers.com&lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; (the website does not form a part of this prospectus) or call the telephone number included in this prospectus.&lt;/span&gt;&lt;span style="font-family:Arial;font-size:10pt;"&gt;Prior to August 4, 2026, the fund operated with a different investment strategy. The fund operated as a passive ETF that tracked the Solactive Municipal Infrastructure Revenue Bond Index. Fund returns prior to August 4, 2026 reflect fund returns when it was tracking the Solactive Municipal Infrastructure Revenue Bond Index. Performance information for the Solactive Municipal Infrastructure Revenue Bond Index is included in the Average Annual Total Returns table below for informational purposes.&lt;/span&gt;</oef:PerformanceNarrativeTextBlock>
    <oef:PerformanceInformationIllustratesVariabilityOfReturns
      contextRef="S000040498"
      id="x_2c4896d1-14c8-414c-acfd-e2a2b412dc0f">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;How a fund's returns vary from year to year can give an idea of its risk; so can comparing fund performance to market performance as measured by one or more indexes. The fund&#x2019;s average annual total returns are compared to a required broad-based securities market index and may also be compared to a more narrowly based index that the Advisor believes more closely aligns with the fund&#x2019;s investment strategy.&lt;/span&gt;</oef:PerformanceInformationIllustratesVariabilityOfReturns>
    <oef:PerformancePastDoesNotIndicateFuture
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      id="x_0237d263-2ce6-40a1-8ccf-251d66dc5ad3">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt; Past performance may not indicate future &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;results.&lt;/span&gt;</oef:PerformancePastDoesNotIndicateFuture>
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      id="x_700fd4d8-6e16-4fe8-b16f-070fe2c3db5f">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Xtrackers.com&lt;/span&gt;</oef:PerformanceAvailabilityWebSiteAddress>
    <oef:BarChartHeading
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      id="b853009e-d777-4c69-8329-c46d788ed319">&lt;span style="font-family:Arial;font-size:10pt;text-transform:uppercase;"&gt;CALENDAR YEAR TOTAL RETURNS&lt;/span&gt;&lt;span style="font-family:Arial;font-size:8pt;"&gt;(%)&lt;/span&gt;</oef:BarChartHeading>
    <oef:BarChartClosingTextBlock
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      id="a196fa38-b6d4-4148-af6e-66685b1d416f">&lt;span style="font-family:Arial;font-size:8pt;font-weight:bold;"&gt;Returns&lt;/span&gt;&lt;span style="font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0.0pt;"&gt;Period ending&lt;/span&gt;&lt;span style="font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0.0pt;"&gt;Best Quarter&lt;/span&gt;&lt;span style="font-family:Arial;font-size:8pt;width:22.01pt;"&gt;10.13&lt;/span&gt;&lt;span style="font-family:Arial;font-size:8pt;margin-left:0.0pt;"&gt;December 31, 2023&lt;/span&gt;&lt;span style="font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0.0pt;"&gt;Worst Quarter&lt;/span&gt;&lt;span style="font-family:Arial;font-size:8pt;width:22.01pt;"&gt;-8.56&lt;/span&gt;&lt;span style="font-family:Arial;font-size:8pt;margin-left:0.0pt;"&gt;March 31, 2022&lt;/span&gt;&lt;span style="font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0.0pt;"&gt;Year-to-Date&lt;/span&gt;&lt;span style="font-family:Arial;font-size:8pt;width:22.01pt;"&gt;3.34&lt;/span&gt;&lt;span style="font-family:Arial;font-size:8pt;margin-left:0.0pt;"&gt;June 30, 2026&lt;/span&gt;</oef:BarChartClosingTextBlock>
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      id="f8ffcaff-b61f-4f08-ab48-3967d4c7165b">&lt;span style="font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0.0pt;"&gt;Best Quarter&lt;/span&gt;</oef:HighestQuarterlyReturnLabel>
    <oef:BarChartHighestQuarterlyReturn
      contextRef="S000040498_C000125719"
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      id="x_25b2832e-f352-44c4-9bad-15a9bd51333d"
      unitRef="pure">0.1013</oef:BarChartHighestQuarterlyReturn>
    <oef:BarChartHighestQuarterlyReturnDate
      contextRef="S000040498_C000125719"
      id="x_3f572b23-ccb3-49c4-85d5-f6be520999c2">2023-12-31</oef:BarChartHighestQuarterlyReturnDate>
    <oef:LowestQuarterlyReturnLabel
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      id="e1ac8080-09fe-4234-8fe4-c28baa87f3d8">&lt;span style="font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0.0pt;"&gt;Worst Quarter&lt;/span&gt;</oef:LowestQuarterlyReturnLabel>
    <oef:BarChartLowestQuarterlyReturn
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      decimals="4"
      id="x_6e45ecd3-0b6a-4de9-a7fc-c494f84585a4"
      unitRef="pure">-0.0856</oef:BarChartLowestQuarterlyReturn>
    <oef:BarChartLowestQuarterlyReturnDate
      contextRef="S000040498_C000125719"
      id="x_186f4e36-2b29-4bec-9cc7-95d2873dce2e">2022-03-31</oef:BarChartLowestQuarterlyReturnDate>
    <oef:YearToDateReturnLabel
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      id="c0dc8865-2aaa-4556-9dad-08a9bafde495">&lt;span style="font-family:Arial;font-size:8pt;font-weight:bold;margin-left:0.0pt;"&gt;Year-to-Date&lt;/span&gt;</oef:YearToDateReturnLabel>
    <oef:BarChartYearToDateReturn
      contextRef="S000040498_C000125719"
      decimals="4"
      id="x_763f8820-ed20-4d88-b458-c8610fb98013"
      unitRef="pure">0.0334</oef:BarChartYearToDateReturn>
    <oef:BarChartYearToDateReturnDate
      contextRef="S000040498_C000125719"
      id="ebe12c20-3461-40e7-9374-fe6b00ea3b06">2026-06-30</oef:BarChartYearToDateReturnDate>
    <oef:PerformanceTableHeading
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      id="x_43039f43-6045-472a-9476-b515f99861dc">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;text-transform:uppercase;"&gt;Average Annual Total Returns&lt;/span&gt;
&lt;br/&gt;&lt;span style="color:#000000;font-family:Arial;font-size:8pt;"&gt;(For periods ended 12/31/2025 expressed as a %)&lt;/span&gt;</oef:PerformanceTableHeading>
    <oef:PerformanceTableNarrativeTextBlock
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      id="x_7258eb79-8d49-488d-84e7-81b7591bf591">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;All after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of any state or local tax. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;Your own &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;actual after-tax returns will depend on your tax situation and may differ from what is shown here. &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;After-tax returns &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;are not relevant to investors who hold shares of the fund in tax-deferred accounts such as individual retirement accounts (&#x201c;IRAs&#x201d;) or employee-sponsored retirement plans.&lt;/span&gt;</oef:PerformanceTableNarrativeTextBlock>
    <oef:PerformanceTableUsesHighestFederalRate
      contextRef="S000040498"
      id="x_54e974a3-3a58-4674-b19d-a6419b544591">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;All after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of any state or local tax. &lt;/span&gt;</oef:PerformanceTableUsesHighestFederalRate>
    <oef:PerformanceTableNotRelevantToTaxDeferred
      contextRef="S000040498"
      id="x_950e6304-60b8-496e-a908-12a426eca26d">&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;After-tax returns &lt;/span&gt;&lt;span style="color:#000000;font-family:Arial;font-size:10pt;"&gt;are not relevant to investors who hold shares of the fund in tax-deferred accounts such as individual retirement accounts (&#x201c;IRAs&#x201d;) or employee-sponsored retirement plans.&lt;/span&gt;</oef:PerformanceTableNotRelevantToTaxDeferred>
    <oef:PerfInceptionDate
      contextRef="C000125719_ReturnBeforeTaxesMember"
      id="x_95c73205-5a97-4302-a59f-fc0297caf257">2013-06-04</oef:PerfInceptionDate>
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      contextRef="C000125719_ReturnBeforeTaxesMember_01Jan2025_31Dec2025"
      decimals="4"
      id="aa99895f-f14c-4fe2-ba71-a49ba845097d"
      unitRef="pure">0.0113</oef:AvgAnnlRtrPct>
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      contextRef="C000125719_ReturnBeforeTaxesMember_01Jan2021_31Dec2025"
      decimals="4"
      id="x_38a98e86-3208-456a-ac7c-8dd62ea04b49"
      unitRef="pure">-0.0041</oef:AvgAnnlRtrPct>
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      contextRef="C000125719_ReturnBeforeTaxesMember_01Jan2016_31Dec2025"
      decimals="4"
      id="x_01b03055-eae9-46c1-94a5-3b49c443f668"
      unitRef="pure">0.0218</oef:AvgAnnlRtrPct>
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      contextRef="C000125719_AfterTaxesOnDistributionsMember_01Jan2025_31Dec2025"
      decimals="4"
      id="x_8dc57928-42e9-41ad-81e7-c801565d1bc6"
      unitRef="pure">0.0113</oef:AvgAnnlRtrPct>
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      contextRef="C000125719_AfterTaxesOnDistributionsMember_01Jan2021_31Dec2025"
      decimals="4"
      id="bdbbb534-f66e-4eac-aaa6-4b0571027cac"
      unitRef="pure">-0.0041</oef:AvgAnnlRtrPct>
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      contextRef="C000125719_AfterTaxesOnDistributionsMember_01Jan2016_31Dec2025"
      decimals="4"
      id="x_78b67bb2-6f6e-4028-a384-a886f0ebae52"
      unitRef="pure">0.0218</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000125719_AfterTaxesOnDistributionsAndSalesMember_01Jan2025_31Dec2025"
      decimals="4"
      id="x_1ddedeb7-32c5-476b-999b-b4af075bf2a0"
      unitRef="pure">0.0206</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="C000125719_AfterTaxesOnDistributionsAndSalesMember_01Jan2021_31Dec2025"
      decimals="4"
      id="x_48cc0782-92ec-4e6d-8012-5f91baa1a523"
      unitRef="pure">0.0033</oef:AvgAnnlRtrPct>
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      contextRef="C000125719_AfterTaxesOnDistributionsAndSalesMember_01Jan2016_31Dec2025"
      decimals="4"
      id="a0ba3287-2ea9-4b8a-b169-e5dc7fd9ed40"
      unitRef="pure">0.0232</oef:AvgAnnlRtrPct>
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      contextRef="_SolactiveMunicipalInfrastructureRevenueBondIndexMember_01Jan2025_31Dec2025"
      decimals="4"
      id="f008ffce-ee7e-4bde-8cac-6f46baf9848d"
      unitRef="pure">0.0425</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="_SolactiveMunicipalInfrastructureRevenueBondIndexMember_01Jan2021_31Dec2025"
      decimals="4"
      id="d537965a-090d-4d50-ba69-e0324ddb4109"
      unitRef="pure">0.0080</oef:AvgAnnlRtrPct>
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      contextRef="_SolactiveMunicipalInfrastructureRevenueBondIndexMember_01Jan2016_31Dec2025"
      decimals="4"
      id="x_86bbaaa1-bf88-4675-8bf4-ec9d0e98dcdc"
      unitRef="pure">0.0234</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="_BloombergMunicipalBondIndexMember_01Jan2025_31Dec2025"
      decimals="4"
      id="x_0a41a116-06d0-4d30-924b-546051c975ca"
      unitRef="pure">0.0193</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="_BloombergMunicipalBondIndexMember_01Jan2021_31Dec2025"
      decimals="4"
      id="fb91a270-bc8a-4cbf-a148-80cf93700488"
      unitRef="pure">-0.0002</oef:AvgAnnlRtrPct>
    <oef:AvgAnnlRtrPct
      contextRef="_BloombergMunicipalBondIndexMember_01Jan2016_31Dec2025"
      decimals="4"
      id="c8109fe6-f548-4f90-9b03-6f49238e7485"
      unitRef="pure">0.0256</oef:AvgAnnlRtrPct>
    <oef:PerformanceTableClosingTextBlock
      contextRef="S000040498"
      id="x_01441f21-dea5-4a24-bc95-2f4d4faaa16d">&lt;span style="font-family:Arial;font-size:10pt;"&gt;Prior to August 4, 2026, the fund tracked the Solactive Municipal Infrastructure Revenue Bond Index.&lt;/span&gt;</oef:PerformanceTableClosingTextBlock>
    <oef:PerformanceTableMarketIndexChanged
      contextRef="S000040498"
      id="x_635119cb-fc75-490a-954b-bef42a187d7e">&lt;span style="font-family:Arial;font-size:10pt;"&gt;Prior to August 4, 2026, the fund tracked the Solactive Municipal Infrastructure Revenue Bond Index.&lt;/span&gt;</oef:PerformanceTableMarketIndexChanged>
</xbrl>
