Prospectus: Share Class [Axis] Series [Axis] Series S000061914 [Member] Hartford AAA CLO ETF Hartford AAA CLO ETF Member S000073398 [Member] Hartford Schroders Commodity Strategy ETF Hartford Schroders Commodity Strategy ETF Member S000067959 [Member] Hartford Core Bond ETF Hartford Core Bond ETF Member S000073664 [Member] Hartford Large Cap Growth ETF Hartford Large Cap Growth ETF Member S000058871 [Member] Hartford Municipal Opportunities ETF Hartford Municipal Opportunities ETF Member S000081376 [Member] Hartford Quality Value ETF Hartford Quality Value ETF Member S000073404 [Member] Hartford Strategic Income ETF Hartford Strategic Income ETF Member S000058872 [Member] Hartford Schroders Tax-Aware Bond ETF Hartford Schroders Tax-Aware Bond ETF Member S000057958 [Member] Hartford Total Return Bond ETF Hartford Total Return Bond ETF Member Share Classes C000200624 [Member] Hartford AAA CLO ETF Hartford AAA CLO ETF C000230267 [Member] Hartford Schroders Commodity Strategy ETF Hartford Schroders Commodity Strategy ETF C000217911 [Member] Hartford Core Bond ETF Hartford Core Bond ETF C000230731 [Member] Hartford Large Cap Growth ETF Hartford Large Cap Growth ETF C000193047 [Member] Hartford Municipal Opportunities ETF Hartford Municipal Opportunities ETF C000244148 [Member] Hartford Quality Value ETF Hartford Quality Value ETF C000230284 [Member] Hartford Strategic Income ETF Hartford Strategic Income ETF C000193049 [Member] Hartford Schroders Tax-Aware Bond ETF Hartford Schroders Tax-Aware Bond ETF C000189003 [Member] Hartford Total Return Bond ETF Hartford Total Return Bond ETF Document Type Period End Date Document Period End Date Registrant Name CIK Entity Central Index Key Amendment Flag Trading Symbol Document Creation Date Effective Date Document Effective Date Prospectus Date Legal Entity Identifier Entity Inv Company Type Amendment Description Net Expenses (as a percentage of Assets) Total annual fund operating expenses after fee waiver Total annual fund operating expenses after fee waiver Expenses (as a percentage of Assets) Total annual fund operating expenses Total annual fund operating expenses Management Fees (as a percentage of Assets) Management fees Distribution and Service (12b-1) Fees Distribution and service (12b-1) fees Distribution or Similar (Non 12b-1) Fees Other Expenses (as a percentage of Assets): Other Expenses Other expenses Component1 Other Expenses Expenses of the Subsidiary Component2 Other Expenses Component3 Other Expenses Acquired Fund Fees and Expenses Fee Waiver or Reimbursement Fee waiver Performance Measure [Axis] Document [Axis] Prospectus Coregistrant [Axis] Coregistrant [Domain] After Taxes on Distributions Before Taxes After Taxes on Distributions and Sales Return Before Taxes [Member] Return Before Taxes Member Return Before Taxes After Taxeson Distributionsand Saleof Fund Shares [Member] After Taxeson Distributionsand Saleof Fund Shares Member After Taxes on Distributions and Sale of Fund Shares J P Morgan C L O I E A A A Index [Member] J P Morgan C L O I E A A A Index Member JP Morgan CLOIE AAA Index (reflects no deduction for fees, expenses or taxes) Bloomberg One Three Year U S Government Credit Index [Member] Bloomberg One Three Year U S Government Credit Index Member Bloomberg 1-3 Year US Government/Credit Index (reflects no deduction for fees, expenses or taxes) Bloomberg U S Aggregate Bond Index [Member] Bloomberg U S Aggregate Bond Index Member Bloomberg US Aggregate Bond Index (reflects no deduction for fees, expenses or taxes) Risk [Axis] All Risks [Member] Risk Nondiversified Status [Member] Risk Lose Money [Member] Risk Money Market Fund Price Fluctuates [Member] Risk Money Market Fund May Impose Fees or Suspend Sales [Member] Risk Money Market Fund May Not Preserve Dollar [Member] Risk Money Market Fund Sponsor May Not Provide Support [Member] Risk Not Insured Depository Institution [Member] Risk Not Insured [Member] Market Risk [Member] Market Risk [Member] Interest Rate Risk [Member] Interest Rate Risk [Member] Credit Risk [Member] Credit Risk [Member] Collateralized Loan Obligations Risk [Member] Collateralized Loan Obligations Risk [Member] CLO Manager Risk [Member] CLO Manager Risk [Member] Extended Settlement Risk [Member] Extended Settlement Risk [Member] Sector Risk [Member] Sector Risk [Member] Loans And Loan Participations Risk [Member] Loans And Loan Participations Risk [Member] Call Risk [Member] Call Risk [Member] Restricted Securities Risk [Member] Restricted Securities Risk [Member] Liquidity Risk [Member] Liquidity Risk [Member] Foreign Investments Risk [Member] Foreign Investments Risk [Member] Event Risk [Member] Event Risk [Member] US Government Securities Risk [Member] US Government Securities Risk [Member] Active Investment Management Risk [Member] Active Investment Management Risk [Member] Market Price Risk [Member] Market Price Risk [Member] Cash Transactions Risk [Member] Cash Transactions Risk [Member] Authorized Participant Concentration Risk [Member] Authorized Participant Concentration Risk [Member] Risk/Return [Heading] Objective [Heading] Objective, Primary [Text Block] Expense [Heading] Expense Narrative [Text Block] Operating Expenses Caption [Text] Portfolio Turnover [Heading] Portfolio Turnover [Text Block] Portfolio Turnover, Rate Expenses Restated to Reflect Current [Text] Expense Example [Heading] Expense Example Narrative [Text Block] Year 1 Expense Example, with Redemption, 1 Year Year 3 Expense Example, with Redemption, 3 Years Year 5 Expense Example, with Redemption, 5 Years Year 10 Expense Example, with Redemption, 10 Years Strategy [Heading] Strategy Narrative [Text Block] Risk [Heading] Risk [Text Block] Bar Chart and Performance Table [Heading] Performance Narrative [Text Block] Performance Information Illustrates Variability of Returns [Text] Performance Additional Market Index [Text] Performance Availability Website Address [Text] Performance Past Does Not Indicate Future [Text] Bar Chart [Heading] 2019 Annual Return 2019 2020 Annual Return 2020 2021 Annual Return 2021 2022 Annual Return 2022 2023 Annual Return 2023 Bar Chart Closing [Text Block] Year to Date Return, Label Bar Chart, Year to Date Return, Date Bar Chart, Year to Date Return Highest Quarterly Return, Label Highest Quarterly Return, Date Highest Quarterly Return Lowest Quarterly Return, Label Lowest Quarterly Return, Date Lowest Quarterly Return Performance Table Heading Performance Table Market Index Changed Performance Table Uses Highest Federal Rate Performance Table Not Relevant to Tax Deferred Performance Table Explanation after Tax Higher Performance Table Narrative Caption Average Annual Return, Caption 1 Year 5 Years Since Inception Objective, Secondary [Text Block] Shareholder Fees Caption [Text] Shareholder Fees Column [Text] Maximum Cumulative Sales Charge (as a percentage of Offering Price) Maximum Cumulative Sales Charge (as a percentage) Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) Maximum Deferred Sales Charge (as a percentage of Offering Price) Maximum Deferred Sales Charge (as a percentage) Maximum Sales Charge on Reinvested Dividends and Distributions (as a percentage) Redemption Fee (as a percentage of Amount Redeemed) Redemption Fee (as a percentage of Amount Redeemed) Redemption Fee Redemption Fee Exchange Fee (as a percentage of Amount Redeemed) Exchange Fee Maximum Account Fee (as a percentage of Assets) Maximum Account Fee Shareholder Fee, Other Operating Expenses Column [Text] Fee Waiver or Reimbursement over Assets, Date of Termination Expense Footnotes [Text Block] Expenses Deferred Charges [Text Block] Expenses Range of Exchange Fees [Text Block] Expense Breakpoint Discounts [Text] Expense Breakpoint, Minimum Investment Required [Amount] Expenses Represent Both Master and Feeder [Text] Expenses Explanation of Nonrecurring Account Fee [Text] Other Expenses, New Fund, Based on Estimates [Text] Acquired Fund Fees and Expenses, Based on Estimates [Text] Expenses Other Expenses Had Extraordinary Expenses Been Included [Text] Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] Expense Example by Year [Heading] Expense Example by, Year, Caption [Text] Expense Example, No Redemption Narrative [Text Block] Expense Example, No Redemption, By Year, Caption [Text] Expense Example, No Redemption, 1 Year 1 Year Expense Example, No Redemption, 3 Years 3 Years Expense Example, No Redemption, 5 Years 5 Years Expense Example, No Redemption, 10 Years 10 Years Expense Example Footnotes [Text Block] Expense Example Closing [Text Block] Strategy Portfolio Concentration [Text] Risk Footnotes [Text Block] Risk Closing [Text Block] Risk Caption Risk Column [Text] Performance One Year or Less [Text] Performance Availability Phone [Text] Bar Chart Narrative [Text Block] Bar Chart Does Not Reflect Sales Loads [Text] Annual Return Caption [Text] Caption Annual Return, Column [Text] Column Annual Return, Inception Date Inception Date Annual Return 1990 Annual Return 1991 Annual Return 1992 Annual Return 1993 Annual Return 1994 Annual Return 1995 Annual Return 1996 Annual Return 1997 Annual Return 1998 Annual Return 1999 Annual Return 2000 Annual Return 2001 Annual Return 2002 Annual Return 2003 Annual Return 2004 Annual Return 2005 Annual Return 2006 Annual Return 2007 Annual Return 2008 Annual Return 2009 Annual Return 2010 Annual Return 2011 Annual Return 2012 Annual Return 2013 Annual Return 2014 2014 Annual Return 2015 2015 Annual Return 2016 2016 Annual Return 2017 2017 Annual Return 2018 2018 Annual Return 2024 Annual Return 2025 Bar Chart Footnotes [Text Block] Bar Chart, Reason Selected Class Different from Immediately Preceding Period [Text] Bar Chart, Returns for Class Not Offered in Prospectus [Text] Performance Table Does Reflect Sales Loads Index No Deduction for Fees, Expenses, Taxes [Text] Performance Table One Class of after Tax Shown [Text] Performance Table Footnotes, Reason Performance Information for Class Different from Immediately Preceding Period [Text] Performance Table Footnotes Performance Table Closing [Text Block] Average Annual Return, Column Name Label 10 Years 10 Years Inception Date Money Market Seven Day Yield, Caption [Text] Money Market Seven Day Yield Column [Text] Money Market Seven Day Yield Phone Money Market Seven Day Yield Money Market Seven Day Tax Equivalent Yield Thirty Day Yield Caption Thirty Day Yield Column [Text] Thirty Day Yield Phone Thirty Day Yield Thirty Day Tax Equivalent Yield Supplement to Prospectus [Text Block] Bloomberg Commodity Index Total Return [Member] Bloomberg Commodity Index Total Return Member Bloomberg Commodity Index Total Return (reflects no deduction for fees, expenses or taxes) S P Five Hundred Index [Member] S P Five Hundred Index Member S&P 500 Index (reflects no deduction for fees, expenses or taxes) Commodity Related Investments Risk [Member] Commodity Related Investments Risk [Member] Derivatives Risk [Member] Derivatives Risk [Member] Futures And Options Risk [Member] Futures And Options Risk [Member] Leverage Risk [Member] Leverage Risk [Member] Counterparty Risk [Member] Counterparty Risk [Member] Swaps Risk [Member] Swaps Risk [Member] Commodity Linked Derivatives Risk [Member] Commodity Linked Derivatives Risk [Member] Subsidiary Risk [Member] Subsidiary Risk [Member] Equity Risk [Member] Equity Risk [Member] Forward Currency Contracts Risk [Member] Forward Currency Contracts Risk [Member] Currency Risk [Member] Currency Risk [Member] Volatility Risk [Member] Volatility Risk [Member] Valuation Risk [Member] Valuation Risk [Member] Active Trading Risk [Member] Active Trading Risk [Member] ESG Integration Risk [Member] ESG Integration Risk [Member] Mortgage Related And Asset Backed Securities Risk [Member] Mortgage Related And Asset Backed Securities Risk [Member] To Be Announced TBA Transactions Risk [Member] To Be Announced TBA Transactions Risk [Member] Portfolio Turnover, Rate Including TBA Roll Transactions Portfolio Turnover, Rate Including TBA Roll Transactions Portfolio Turnover, Rate Including TB Roll Transactions Russell One Thousand Growth Index [Member] Russell One Thousand Growth Index Member Russell 1000 Growth Index (reflects no deduction for fees, expenses or taxes) Russell One Thousand Index [Member] Russell One Thousand Index Member Russell 1000 Index (reflects no deduction for fees, expenses or taxes) Large Cap Securities Risk [Member] Large Cap Securities Risk [Member] Growth Investing Style Risk [Member] Growth Investing Style Risk [Member] Sector Investment Risk [Member] Sector Investment Risk [Member] Bloomberg Municipal Bond One One Five Year Blend One One Seven Index [Member] Bloomberg Municipal Bond One One Five Year Blend One One Seven Index Member Bloomberg Municipal Bond 1-15 Year Blend (1-17) Index (reflects no deduction for fees, expenses or taxes) Bloomberg Municipal Bond Index [Member] Bloomberg Municipal Bond Index Member Bloomberg Municipal Bond Index (reflects no deduction for fees, expenses or taxes) Municipal Securities Risk [Member] Municipal Securities Risk [Member] High Yield Investments Risk [Member] High Yield Investments Risk [Member] Russell One Thousand Value Index [Member] Russell One Thousand Value Index Member Russell 1000 Value Index (reflects no deduction for fees, expenses or taxes) Value Investing Style Risk [Member] Value Investing Style Risk [Member] Dividend Risk [Member] Dividend Risk [Member] Emerging Markets Risk [Member] Emerging Markets Risk [Member] Sovereign Debt Risk [Member] Sovereign Debt Risk [Member] State Specific Risk [Member] State Specific Risk [Member]