v3.24.3
Label Element Value
Risk Return Abstract rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName HARTFORD FUNDS EXCHANGE-TRADED TRUST
Prospectus Date rr_ProspectusDate Nov. 27, 2024
Hartford Schroders Tax-Aware Bond ETF  
Risk Return Abstract rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading <span style="color:#000000;font-family:Arial Narrow;font-size:20pt;font-weight:bold;">Hartford Schroders Tax-Aware Bond ETF Summary Section</span>
Objective [Heading] rr_ObjectiveHeading <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">INVESTMENT OBJECTIVE. </span>
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock The Fund seeks total return on an after-tax basis.
Expense [Heading] rr_ExpenseHeading <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">YOUR EXPENSES.</span>
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock The table below describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table or the example below.
Operating Expenses Caption [Text] rr_OperatingExpensesCaption <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">Annual Fund Operating Expenses</span><span style="color:#000000;font-family:Arial Narrow;font-size:10pt;"> (expenses that you pay each year as a percentage of the value of your investment):</span>
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading <span style="font-family:Arial Narrow;font-size:11pt;font-weight:bold;">Portfolio Turnover. </span>
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance. During the fiscal year ended July 31, 2024, the Fund’s portfolio turnover rate was 60% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 60.00%
Expense Example [Heading] rr_ExpenseExampleHeading <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">Example.</span>
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock The example below is intended to help you compare the cost of investing in the Fund with the cost of investing in other exchange-traded funds. The example assumes that: ●Your investment has a 5% return each year ●The Fund’s operating expenses remain the same Your actual costs may be higher or lower. Based on these assumptions, for every $10,000 invested, you would pay the following expenses if you sell all of your shares at the end of each time period indicated:
Strategy [Heading] rr_StrategyHeading <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">PRINCIPAL INVESTMENT STRATEGY. </span>
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock The Fund seeks to achieve its investment objective by investing in a diversified portfolio of fixed income debt instruments of varying maturities. Under normal circumstances, the Fund invests at least 80% of its assets in U.S. dollar-denominated, investment-grade fixed income debt instruments. Fixed income debt instruments include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public or private-sector entities. The fixed income debt instruments in which the Fund may invest include securities issued or guaranteed by the U.S. government and its agencies, government-sponsored enterprise securities, corporate bonds, mortgage-backed securities (including “to be announced” or “TBA” transactions), asset-backed securities, municipal securities, sovereign debt and debt securities issued by supranational organizations. They may pay fixed, variable, or floating interest rates. “Investment-grade” securities are securities that are rated by at least one major rating agency in one of its top four rating categories, or, if unrated, are determined by the Fund’s sub-advisers to be of similar quality, at the time of purchase. In the case of a split rated security (that is, two or more rating agencies give a security different ratings), the average rating shall apply. The Fund may invest without limit in U.S. dollar denominated foreign securities. The Fund may also invest a portion of its assets in cash and cash equivalents. Schroder Investment Management North America Inc. (“SIMNA”) serves as the Fund’s sub-adviser. SIMNA may use a sub-sub-adviser, Schroder Investment Management North America Limited (“SIMNA Ltd.”), which is an affiliate. References to “Sub-Advisers” include SIMNA Ltd., as applicable, with respect to its role as the Fund’s sub-sub-adviser. The Fund may invest in fixed income securities of any maturity or duration. The Fund’s effective duration may vary over time depending on the Sub-Advisers’ assessment of market and economic conditions and other factors. The Fund may trade securities actively. In seeking to achieve the Fund’s investment objective, the Sub-Advisers employ a tax-aware investing strategy that attempts to realize total return for shareholders, primarily in the form of current income and price appreciation, by balancing investment considerations and tax considerations. “Total return” consists of income earned on the Fund’s investments, plus capital appreciation, if any. The Sub-Advisers allocate the Fund’s assets among taxable and tax-exempt investments with no limitation on the amount of assets that may be invested in either category. The Fund is eligible to pay “exempt-interest dividends” only if 50% of the value of its total assets is invested in tax-exempt securities at the end of each quarter of its taxable year. At times, the Fund’s investments in municipal securities may be substantial depending on the Sub-Advisers’ outlook on the market. In particular, the Fund may invest more than 25% of its total assets in municipal securities of issuers in each of California, New York and Texas. It is important to understand that the Fund is not limited to investing solely in assets that generate tax-exempt income and may make both taxable and tax-exempt distributions to shareholders. Among the techniques and strategies used by the Fund in seeking tax-efficient management are the following: investing in municipal securities, the interest from which is exempt from federal income tax (but not necessarily the federal alternative minimum tax (“AMT”) or state income tax); investing in taxable securities where after-tax valuation is favorable; attempting to minimize net realized short-term capital gain; and employing a long-term approach to investing. When making investment decisions for the Fund, the Sub-Advisers take into consideration the maximum federal tax rates. The Fund’s decision to purchase or sell a security or make investments in a particular sector is based on relative value considerations. In analyzing the relative attractiveness of a particular security or sector, the Sub-Advisers assess an issue’s historical relationships to other bonds, technical factors including supply and demand and fundamental risk and reward relationships. As part of this analysis, the Sub-Advisers also consider sector exposures, interest rate duration, yield and the relationship between yields and maturity dates. In addition, the Sub-Advisers integrate financially material environmental, social and governance (“ESG”) characteristics (where available for an issuer) into their investment process. ESG characteristics are one of several factors that contribute to the Sub-Advisers’ overall evaluation of the risk and return potential of an investment. As part of its tax-aware strategy, the Fund typically sells securities when the anticipated performance benefit justifies the resulting gain. This strategy often includes minimizing the sale of securities with large unrealized gains, holding securities long enough to avoid short-term capital gains taxes, selling securities with a higher cost basis first and offsetting capital gains realized in one security by selling another security at a capital loss. In addition, the Fund may engage in transactions involving derivatives. Derivative transactions may include exchange-traded futures contracts. The Fund will normally use derivatives to supplement the effective management of its duration profile, to gain exposure to particular securities or markets, in connection with hedging transactions, or for purposes of efficient portfolio management, including managing cash flows or as part of the Fund’s risk management process.
Risk [Heading] rr_RiskHeading <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">PRINCIPAL RISKS. </span>
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">PAST PERFORMANCE.</span>
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock The performance information below provides some indication of the risks of investing in the Fund by comparing the Fund’s performance to a broad measure of market performance.Keep in mind that past performance does not indicate future results. Updated performance information is available at hartfordfunds.com. The bar chart shows the Fund’s performance for each calendar year since the Fund’s inception.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;"> The performance information below provides some indication of the risks of investing in the Fund by comparing the Fund’s performance to a broad measure of market performance.</span>
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">hartfordfunds.com</span>
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">Keep in mind that past performance does not indicate future results.</span>
Bar Chart [Heading] rr_BarChartHeading <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">Total returns by calendar year</span>
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock During the periods shown in the chart above:ReturnsQuarter EndedBest Quarter Return8.93%December 31, 2023Worst Quarter Return-5.67%March 31, 2022Theyear-to-datereturn of the Fund as ofSeptember 30, 2024was3.17%.
Performance Table Heading rr_PerformanceTableHeading <span style="font-family:Arial Narrow;font-size:11pt;font-weight:bold;">Average Annual Total Returns.</span>
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate <span style="font-family:Arial Narrow;font-size:10pt;">After-tax returns are calculated </span><span style="font-family:Arial Narrow;font-size:10pt;">using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes.</span>
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred <span style="font-family:Arial Narrow;font-size:10pt;">Actual after-tax returns, which depend on an investor’s particular tax situation, may differ from those shown and are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.</span>
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher <span style="font-family:Arial Narrow;font-size:10pt;">In some instances, the “Return After Taxes on Distributions and Sale of Fund Shares” may be greater than “Return Before Taxes” because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains.</span>
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock The table below shows returns for the Fund over time compared to those of a broad-based market index, which is the Fund’s performance index and its regulatory index. After-tax returns are calculated using the historical highest individual U.S. federal marginal income tax rates and do not reflect the impact of state and local taxes.In some instances, the “Return After Taxes on Distributions and Sale of Fund Shares” may be greater than “Return Before Taxes” because the investor is assumed to be able to use the capital loss from the sale of Fund shares to offset other taxable gains.Actual after-tax returns, which depend on an investor’s particular tax situation, may differ from those shown and are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts. Updated performance information is available by visiting our website at hartfordfunds.com.
Caption rr_AverageAnnualReturnCaption <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">Average annual total returns for periods ending December 31, 2023</span>
Hartford Schroders Tax-Aware Bond ETF | Risk Lose Money [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock When you sell your shares they may be worth more or less than what you paid for them, which means that you could lose money as a result of your investment.
Hartford Schroders Tax-Aware Bond ETF | Risk Not Insured Depository Institution [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Hartford Schroders Tax-Aware Bond ETF | Market Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Market Risk –  Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Securities of a company may decline in value due to its financial prospects and activities, including certain operational impacts, such as data breaches and cybersecurity attacks. Securities may also decline in value due to general market and economic movements and trends, including adverse changes to credit markets, or as a result of other events such as geopolitical events, natural disasters, or widespread pandemics (such as COVID-19) or other adverse public health developments.
Hartford Schroders Tax-Aware Bond ETF | Interest Rate Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Interest Rate Risk –  The risk that your investment may go down in value when interest rates rise, because when interest rates rise, the prices of bonds and fixed rate loans fall. A wide variety of factors can cause interest rates to rise, including central bank monetary policies and inflation rates. Generally, the longer the maturity of a bond or fixed rate loan, the more sensitive it is to this risk. Falling interest rates also create the potential for a decline in the Fund’s income. These risks are greater during periods of rising inflation. Volatility in interest rates and in fixed income markets may increase the risk that the Fund’s investment in fixed income securities will go down in value. Actions taken by the Federal Reserve Board or foreign central banks to stimulate or stabilize economic growth, such as decreases or increases in short-term interest rates, may adversely affect markets, which could, in turn, negatively impact Fund performance.
Hartford Schroders Tax-Aware Bond ETF | Municipal Securities Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Municipal Securities Risk –  Municipal securities risks include the possibility that the issuer may be unable to pay interest or repay principal on a timely basis or at all, the relative lack of information about certain issuers of municipal securities, and the possibility of future legislative changes which could affect the market for and value of municipal securities. In addition, state or local political or economic conditions and developments can adversely affect the securities issued by state and local governments. The value of the municipal securities owned by the Fund also may be adversely affected by future changes in federal or state income tax laws, including tax rate reductions or the determination that municipal securities are subject to taxation.
Hartford Schroders Tax-Aware Bond ETF | Credit Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Credit Risk –  Credit risk is the risk that the issuer of a security or other instrument will not be able to make principal and interest payments when due. Changes in an issuer’s financial strength, credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. The degree of credit risk depends on both the financial condition of the issuer and the terms of the obligation. Periods of market volatility may increase credit risk.
Hartford Schroders Tax-Aware Bond ETF | US Government Securities Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock U.S. Government Securities Risk –  Treasury obligations may differ in their interest rates, maturities, times of issuance and other characteristics. Securities backed by the U.S. Treasury or the full faith and credit of the United States are guaranteed only as to the timely payment of interest and principal when held to maturity. Accordingly, the current market values for these securities will fluctuate with changes in interest rates. Obligations of U.S. Government agencies and authorities are supported by varying degrees of credit but generally are not backed by the full faith and credit of the U.S. Government. No assurance can be given that the U.S. Government will provide financial support to its agencies and authorities if it is not obligated by law to do so. In addition, the value of U.S. Government securities may be affected by changes in the credit rating of the U.S. Government. U.S. Government securities are also subject to the risk that the U.S. Treasury will be unable to meet its payment obligations.
Hartford Schroders Tax-Aware Bond ETF | Mortgage Related And Asset Backed Securities Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Mortgage-Related and Asset-Backed Securities Risk –  Mortgage-related and asset-backed securities represent interests in “pools” of mortgages or other assets, including consumer loans or receivables held in trust. These mortgage-related or asset-backed securities are subject to credit risk, interest rate risk, “prepayment risk” (the risk that borrowers will repay a loan more quickly in periods of falling interest rates) and “extension risk” (the risk that borrowers will repay a loan more slowly in periods of rising interest rates). If the Fund invests in mortgage-related or asset-backed securities that are subordinated to other interests in the same mortgage or asset pool, the Fund may only receive payments after the pool’s obligations to other investors have been satisfied. An unexpectedly high rate of defaults on the mortgages held by a mortgage pool may limit substantially the pool’s ability to make payments of principal or interest to the Fund, reducing the values of those securities or in some cases rendering them worthless. The risk of such defaults is generally higher in the case of mortgage pools that include so-called “subprime” mortgages. The Fund may purchase or sell mortgage-backed securities on a delayed delivery or forward commitment basis through the TBA market. Uniform Mortgage-Backed Securities, which generally align the characteristics of Fannie Mae and Freddie Mac certificates, are a recent innovation and the effect they may have on the market for mortgage-related securities is uncertain.
Hartford Schroders Tax-Aware Bond ETF | To Be Announced TBA Transactions Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock To Be Announced (TBA) Transactions Risk –  TBA investments include when-issued and delayed delivery securities and forward commitments. TBA transactions involve the risk that the security the Fund buys will lose value prior to its delivery. The Fund is subject to this risk whether or not the Fund takes delivery of the securities on the settlement date for a transaction. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund loses both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price. The Fund may also take a short position in a TBA investment when it owns or has the right to obtain, at no added cost, identical securities. If the Fund takes such a short position, it may reduce the risk of a loss if the price of the securities declines in the future, but will lose the opportunity to profit if the price rises. TBA transactions may also result in a higher portfolio turnover rate and/or increased capital gains for the Fund.
Hartford Schroders Tax-Aware Bond ETF | Liquidity Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Liquidity Risk –  The risk that the market for a particular investment or type of investment is or becomes relatively illiquid, making it difficult for the Fund to sell that investment at an advantageous time or price. Illiquidity may be due to events relating to the issuer of the securities, market events, rising interest rates, economic conditions or investor perceptions. Illiquid securities may be difficult to value and their value may be lower than the market price of comparable liquid securities, which would negatively affect the Fund’s performance.
Hartford Schroders Tax-Aware Bond ETF | Call Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Call Risk –  Call risk is the risk that an issuer, especially during a period of falling interest rates, may redeem a security by repaying it early, which may reduce the Fund’s income if the proceeds are reinvested at lower interest rates.
Hartford Schroders Tax-Aware Bond ETF | Derivatives Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Derivatives Risk –  Derivatives are instruments whose value depends on, or is derived from, the value of an underlying asset, reference rate or index. Derivatives may be riskier than other types of investments because they may be more sensitive to changes in economic or market conditions than other types of investments and could result in losses that significantly exceed the Fund’s original investment. Successful use of derivative instruments by the Fund depends on the Sub-Advisers’ judgment with respect to a number of factors and the Fund’s performance could be worse and/or more volatile than if it had not used these instruments. In addition, the fluctuations in the value of derivatives may not correlate perfectly with the value of any portfolio assets being hedged, the performance of the asset class to which the Sub-Advisers seek exposure, or the overall securities markets.
Hartford Schroders Tax-Aware Bond ETF | Futures And Options Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Futures and Options Risk –  Futures and options may be more volatile than direct investments in the securities underlying the futures and options, may not correlate perfectly to the underlying securities, may involve additional costs, and may be illiquid. Futures and options also may involve the use of leverage as the Fund may make a small initial investment relative to the risk assumed, which could result in losses greater than if futures or options had not been used. Futures and options are also subject to the risk that the other party to the transaction may default on its obligation.
Hartford Schroders Tax-Aware Bond ETF | Leverage Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Leverage Risk –  Certain transactions, such as the use of derivatives, may give rise to leverage. Leverage can increase market exposure, increase volatility in the Fund, magnify investment risks, and cause losses to be realized more quickly. The use of leverage may cause the Fund to liquidate portfolio positions to satisfy its obligations when it may not be advantageous to do so.
Hartford Schroders Tax-Aware Bond ETF | Counterparty Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Counterparty Risk –  The risk that the counterparty in a transaction by the Fund may be unable or unwilling to make timely principal, interest or settlement payments, or otherwise to honor its obligations.
Hartford Schroders Tax-Aware Bond ETF | Foreign Investments Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Foreign Investments Risk –  Investments in foreign securities may be riskier, more volatile, and less liquid than investments in U.S. securities. Differences between the U.S. and foreign regulatory regimes and securities markets, including the less stringent investor protection, less stringent accounting, corporate governance, financial reporting and disclosure standards of some foreign markets, as well as political and economic developments in foreign countries and regions and the U.S. (including the imposition of sanctions, tariffs, or other governmental restrictions), may affect the value of the Fund’s investments in foreign securities. Changes in currency exchange rates may also adversely affect the Fund’s foreign investments.
Hartford Schroders Tax-Aware Bond ETF | State Specific Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock State-Specific Risk –  A fund that may invest more than 25% of its total assets in municipal securities of issuers in one or more states is subject to the risk that the economies of the states in which it invests, and the revenues supporting the municipal securities, may decline. Investing significantly in one or more states means that the Fund may be more exposed to negative political or economic factors in those states than a fund that invests more widely.
Hartford Schroders Tax-Aware Bond ETF | Market Price Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Market Price Risk –  The net asset value (“NAV”) of the Fund’s shares and the value of your investment may fluctuate. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV and changes in the intraday value of the Fund’s holdings, as well as the relative supply of and demand for the shares on the Fund’s listing exchange. Although it is expected that the Fund’s shares will remain listed on the exchange, disruptions to creations and redemptions, the existence of market volatility or lack of an active trading market for the shares (including through a trading halt), as well as other factors, may result in the shares trading significantly above (at a premium to) or below (at a discount to) the Fund’s NAV or the intraday value of the Fund’s holdings. In addition, because liquidity in certain underlying portfolio securities may fluctuate over time, shares of the Fund may, at times, trade at a larger than normal premium or discount to NAV. In addition, to the extent certain of the Fund’s portfolio securities are trading on days or at times the Fund’s shares are not trading, bid-ask spreads and the resulting premium or discount to the NAV of the Fund’s shares may widen. During such periods, you may be unable to sell your shares or may incur significant losses if you sell your shares. There are various methods by which investors can purchase and sell shares and various types of orders that may be placed. Investors should consult their financial intermediary before purchasing or selling shares of the Fund. Neither the investment manager nor the Fund’s Sub-Advisers can predict whether the Fund’s shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. In addition, unlike many ETFs, the Fund is not an index fund. The Fund is actively managed and does not seek to replicate the performance of a specified index. There can be no assurance as to whether and/or to what extent the Fund’s shares will trade at premiums or discounts to NAV or to the intraday value of the Fund’s holdings.
Hartford Schroders Tax-Aware Bond ETF | Cash Transactions Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Cash Transactions Risk –  The Fund may effect creations and redemptions partly or wholly for cash, rather than through in-kind distributions of securities. Because the Fund may effect redemptions for cash rather than in-kind, the Fund may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and it may subsequently recognize gains on such sales that the Fund might not have recognized if it were to distribute portfolio securities in-kind. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that primarily or wholly effects creations and redemptions in-kind. Moreover, cash transactions may have to be carried out over several days if the securities markets are relatively illiquid at the time the Fund must sell securities and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to purchasers and redeemers of Creation Units in the form of creation and redemption transaction fees. As a result of these factors, the spreads between the bid and the offered prices of the Fund’s shares may be wider than those of shares of ETFs that primarily or wholly transact in-kind.
Hartford Schroders Tax-Aware Bond ETF | Active Investment Management Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Active Investment Management Risk –  The risk that, if the Sub-Advisers’ investment strategy does not perform as expected, the Fund could underperform its peers or lose money.
Hartford Schroders Tax-Aware Bond ETF | Authorized Participant Concentration Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Authorized Participant Concentration Risk –  Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of intermediaries that act as authorized participants on an agency basis (i.e., on behalf of other market participants), and none of these authorized participants are or will be obligated to engage in creation or redemption transactions. To the extent that these intermediaries exit the business or are unable to or choose not to proceed with creation and/or redemption orders with respect to the Fund and no other authorized participant is able to step forward to create or redeem, Fund shares may trade at a premium or discount to NAV and possibly face trading halts and/or delisting.
Hartford Schroders Tax-Aware Bond ETF | Active Trading Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Active Trading Risk –  Active trading could increase the Fund’s transaction costs and may increase your tax liability as compared to a fund with less active trading policies. These effects may adversely affect Fund performance.
Hartford Schroders Tax-Aware Bond ETF | ESG Integration Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock ESG Integration Risk –  Integrating financially material ESG analysis into the investment process carries the risk that the Fund may perform differently from funds that do not integrate ESG into their analysis, or funds that evaluate different ESG characteristics. ESG characteristics are one of several factors that may be considered and as a result, the Fund’s investments may not have favorable ESG characteristics or high ESG ratings.
Hartford Schroders Tax-Aware Bond ETF | Hartford Schroders Tax-Aware Bond ETF  
Risk Return Abstract rr_RiskReturnAbstract  
Management fees rr_ManagementFeesOverAssets 0.39%
Distribution and service (12b-1) fees rr_DistributionAndService12b1FeesOverAssets none
Other expenses rr_OtherExpensesOverAssets none
Total annual fund operating expenses rr_ExpensesOverAssets 0.39%
Year 1 rr_ExpenseExampleYear01 $ 40
Year 3 rr_ExpenseExampleYear03 125
Year 5 rr_ExpenseExampleYear05 219
Year 10 rr_ExpenseExampleYear10 $ 493
2019 rr_AnnualReturn2019 7.87%
2020 rr_AnnualReturn2020 5.56%
2021 rr_AnnualReturn2021 0.02%
2022 rr_AnnualReturn2022 (8.45%)
2023 rr_AnnualReturn2023 6.68%
Year to Date Return, Label rr_YearToDateReturnLabel <span style="font-family:Arial Narrow;font-size:10pt;margin-left:0.0pt;">year-to-date</span>
Bar Chart, Year to Date Return, Date rr_BarChartYearToDateReturnDate Sep. 30, 2024
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn 3.17%
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel <span style="font-family:Arial;font-size:9pt;font-weight:bold;margin-left:0.0pt;">Best Quarter Return</span>
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Dec. 31, 2023
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 8.93%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel <span style="font-family:Arial;font-size:9pt;font-weight:bold;margin-left:0.0pt;">Worst Quarter Return</span>
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2022
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (5.67%)
Hartford Schroders Tax-Aware Bond ETF | After Taxes on Distributions | Hartford Schroders Tax-Aware Bond ETF  
Risk Return Abstract rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.24%
5 Years rr_AverageAnnualReturnYear05 1.75%
Since Inception rr_AverageAnnualReturnSinceInception 1.77%
Hartford Schroders Tax-Aware Bond ETF | Return Before Taxes | Hartford Schroders Tax-Aware Bond ETF  
Risk Return Abstract rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.68%
5 Years rr_AverageAnnualReturnYear05 2.15%
Since Inception rr_AverageAnnualReturnSinceInception 2.15%
Hartford Schroders Tax-Aware Bond ETF | After Taxes on Distributions and Sale of Fund Shares | Hartford Schroders Tax-Aware Bond ETF  
Risk Return Abstract rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.89%
5 Years rr_AverageAnnualReturnYear05 1.83%
Since Inception rr_AverageAnnualReturnSinceInception 1.84%
Hartford Schroders Tax-Aware Bond ETF | Bloomberg Municipal Bond Index (reflects no deduction for fees, expenses or taxes)  
Risk Return Abstract rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 6.40%
5 Years rr_AverageAnnualReturnYear05 2.25%
Since Inception rr_AverageAnnualReturnSinceInception 2.37%