Shareholder Report |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jul. 31, 2026
USD ($)
Holding
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| Shareholder Report [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Document Type | N-CSR | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Amendment Flag | false | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Registrant Name | Hartford Funds Exchange-Traded Trust | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Central Index Key | 0001501825 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Investment Company Type | N-1A | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Document Period End Date | Jul. 31, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000189003 [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Hartford Total Return Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Hartford Total Return Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | HTRB | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Security Exchange Name | NYSEArca | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Hartford Total Return Bond ETF (the "Fund") for the period of August 1, 2025 to July 31, 2026. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at hartfordfunds.com/reports-etf. You can also request this information by contacting us by calling 1‑800‑456‑7526. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period.
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| Additional Information Phone Number | 1‑800‑456‑7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment)
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| Expenses Paid, Amount | $ 29 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.29% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what impacted its performance? Management's Discussion of Fund Performance United States (U.S.) fixed income sectors generated positive total returns during the trailing twelve-month period ended July 31, 2026. The period was defined by elevated macro uncertainty, with increasingly divergent regional policy paths, persistent inflation, and shifting geopolitical risks. On an excess return basis, credit sectors produced positive returns over duration-equivalent government bonds on tighter spreads, strong investor demand, and positive fund flows. Most developed markets’ sovereign yields finished the period higher, though the move was not uniform. U.S. Treasury yields were volatile throughout the period as markets balanced resilient economic growth, persistent inflation, and evolving expectations for Federal Reserve policy. The performance described below is relative to the Bloomberg US Aggregate Bond Index, the Fund’s performance benchmark. Top Contributors to Performance
Top Detractors to Performance
The Fund held tactical interest rate positions during the period, including interest rate futures and swaps. Overall duration and yield curve positioning detracted from relative results. During the period, the Fund used currency forwards and options to implement non-U.S. rate and currency positions which had a negligible impact on performance, in aggregate. Credit default swaps (CDX, CDS) and credit swaps ITRAXX were used to manage credit exposure and overall portfolio risk. High yield credit default swaps positions had a positive impact on performance during the period, and investment grade CDX also had a small positive impact. The views expressed reflect the opinions of Wellington Management Company, LLP as of the date of this report and are subject to change based on what we consider to be changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
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| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | Comparison of Change in Value of $ 10,000 Investment The graph below represents the hypothetical growth of a $10,000 investment in the Fund and the comparative index. The Fund’s past performance is not a good predictor of the Fund’s future performance. |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Sep. 27, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Material Change Date | Nov. 26, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit hartfordfunds.com for the most recent performance information. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 2,208,622,351 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 1,799 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 6,287,749 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 94.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of July 31, 2026
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| Holdings [Text Block] | Graphical Representation of Holdings as of July 31, 2026 The table below shows the investment makeup of the Fund, representing the percentage of net assets of the Fund. Composition by Security Type
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| Material Fund Change [Text Block] | Material Fund Changes This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's prospectus dated November 26, 2025, which is currently available at hartfordfunds.com/reports-etf or upon request by calling 1-800-456-7526 or sending an e-mail to orders@mysummaryprospectus.com. Effective as of November 26, 2025, “Counterparty Risk” was added as a principal risk of the Fund.
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| Material Fund Change Risks Change [Text Block] | Effective as of November 26, 2025, “Counterparty Risk” was added as a principal risk of the Fund.
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| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's prospectus dated November 26, 2025, which is currently available at hartfordfunds.com/reports-etf or upon request by calling 1-800-456-7526 or sending an e-mail to orders@mysummaryprospectus.com.
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| Updated Prospectus Phone Number | 1-800-456-7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Prospectus Email Address | orders@mysummaryprospectus.com | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Prospectus Web Address | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000193047 [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Hartford Municipal Opportunities ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Hartford Municipal Opportunities ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | HMOP | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Security Exchange Name | NYSEArca | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Hartford Municipal Opportunities ETF (the "Fund") for the period of August 1, 2025 to July 31, 2026. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at hartfordfunds.com/reports-etf. You can also request this information by contacting us by calling 1‑800‑456‑7526. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Phone Number | 1‑800‑456‑7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment)
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| Expenses Paid, Amount | $ 30 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.29% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what impacted its performance? Management's Discussion of Fund Performance United States (U.S.) fixed income sectors generated positive total returns during the trailing twelve-month period ended July 31, 2026. The period was defined by elevated macro uncertainty, with increasingly divergent regional policy paths, persistent inflation, and shifting geopolitical risks. On an excess return basis, credit sectors produced positive returns over duration-equivalent government bonds on tighter spreads, strong investor demand, and positive fund flows. Most developed markets’ sovereign yields finished the period higher, though the move was not uniform. U.S. Treasury yields were volatile throughout the period as markets balanced resilient economic growth, persistent inflation, and evolving expectations for Federal Reserve policy. The performance described below is relative to the Bloomberg Municipal 1-15 Year Blend (1-17) Index, the Fund’s performance benchmark. Top Contributors to Performance
Top Detractors to Performance
The views expressed reflect the opinions of Wellington Management Company, LLP as of the date of this report and are subject to change based on what we consider to be changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
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| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | Comparison of Change in Value of $ 10,000 Investment The graph below represents the hypothetical growth of a $10,000 investment in the Fund and the comparative indices. The Fund’s past performance is not a good predictor of the Fund’s future performance. |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Dec. 13, 2017 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit hartfordfunds.com for the most recent performance information. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 784,488,265 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 624 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 1,972,452 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 36.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of July 31, 2026
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| Holdings [Text Block] | Graphical Representation of Holdings as of July 31, 2026 The table below shows the investment makeup of the Fund, representing the percentage of net assets of the Fund. Composition by State
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| C000193049 [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Hartford Schroders Tax-Aware Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Hartford Schroders Tax-Aware Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | HTAB | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Security Exchange Name | NYSEArca | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Hartford Schroders Tax-Aware Bond ETF (the "Fund") for the period of August 1, 2025 to July 31, 2026. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at hartfordfunds.com/reports-etf. You can also request this information by contacting us by calling 1‑800‑456‑7526. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period.
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| Additional Information Phone Number | 1‑800‑456‑7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment)
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| Expenses Paid, Amount | $ 40 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.39% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what impacted its performance? Management's Discussion of Fund Performance United States (U.S.) fixed income sectors, as measured by the Bloomberg Aggregate Bond Index, generated positive total returns during the trailing twelve-month period ending July 31, 2026. Credit sectors produced positive excess returns over duration-equivalent government bonds despite spreads remaining relatively unchanged for the period as the extra income earned resulted in outperformance relative to duration-neutral Treasuries. Other risk assets such as Agency Mortgages were notably ahead of credit as lower rate volatility was supportive. Tax-Exempt Municipals were generally the best Investment-Grade sector in terms of excess returns to Treasuries as elevated yields attracted consistent cash flows into the sector despite heavy supply. The performance described below is relative to the Bloomberg Municipal Bond Index, the Fund’s performance benchmark. Top Contributors to Performance
Top Detractors to Performance
The views expressed in this section reflect the opinions of the Fund's sub-adviser, Schroder Investment Management North America Ltd. as of the date of this report and are subject to change based on changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
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| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | Comparison of Change in Value of $ 10,000 Investment The graph below represents the hypothetical growth of a $10,000 investment in the Fund and the comparative index. The Fund’s past performance is not a good predictor of the Fund’s future performance. |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Apr. 18, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Material Change Date | Nov. 26, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit hartfordfunds.com for the most recent performance information. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 288,206,377 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 173 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 1,261,819 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 59.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of July 31, 2026
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| Holdings [Text Block] | Graphical Representation of Holdings as of July 31, 2026 The table below shows the investment makeup of the Fund, representing the percentage of net assets of the Fund. Composition by Security Type
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| Material Fund Change [Text Block] | Material Fund Changes This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's prospectus dated November 26, 2025, which is currently available at hartfordfunds.com/reports-etf or upon request by calling 1-800-456-7526 or sending an e-mail to orders@mysummaryprospectus.com. Effective as of November 26, 2025, the Fund’s principal investment strategy was revised to remove the reference to investments in to-be-announced transactions (TBAs). In addition, “To-Be-Announced (TBA) Transactions Risk” was removed from the principal risk of the Fund and designated instead as a secondary risk.
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| Material Fund Change Strategies [Text Block] | Effective as of November 26, 2025, the Fund’s principal investment strategy was revised to remove the reference to investments in to-be-announced transactions (TBAs). In addition, “To-Be-Announced (TBA) Transactions Risk” was removed from the principal risk of the Fund and designated instead as a secondary risk.
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| Material Fund Change Risks Change [Text Block] | In addition, “To-Be-Announced (TBA) Transactions Risk” was removed from the principal risk of the Fund and designated instead as a secondary risk. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's prospectus dated November 26, 2025, which is currently available at hartfordfunds.com/reports-etf or upon request by calling 1-800-456-7526 or sending an e-mail to orders@mysummaryprospectus.com.
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| Updated Prospectus Phone Number | 1-800-456-7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Prospectus Email Address | orders@mysummaryprospectus.com | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Prospectus Web Address | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000200624 [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Hartford AAA CLO ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Hartford AAA CLO ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | TRPA | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Security Exchange Name | CboeBZX | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Hartford AAA CLO ETF (the "Fund") for the period of August 1, 2025 to July 31, 2026. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at hartfordfunds.com/reports-etf. You can also request this information by contacting us by calling 1‑800‑456‑7526. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Phone Number | 1‑800‑456‑7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment)
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| Expenses Paid, Amount | $ 25 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.24% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what impacted its performance? Management's Discussion of Fund Performance United States (U.S.) fixed income sectors generated positive total returns during the trailing twelve-month period ended July 31, 2026. The period was defined by elevated macro uncertainty, with increasingly divergent regional policy paths, persistent inflation, and shifting geopolitical risks. On an excess return basis, credit sectors produced positive returns over duration-equivalent government bonds on tighter spreads, strong investor demand, and positive fund flows. Most developed markets’ sovereign yields finished the period higher, though the move was not uniform. U.S. Treasury yields were volatile throughout the period as markets balanced resilient economic growth, persistent inflation, and evolving expectations for Federal Reserve policy. The performance described below is relative to the JP Morgan CLOIE AAA Index, the Fund’s performance benchmark. Top Contributors to Performance
Top Detractors to Performance
The views expressed reflect the opinions of Wellington Management Company, LLP as of the date of this report and are subject to change based on what we consider to be changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
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| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | Comparison of Change in Value of $ 10,000 Investment The graph below represents the hypothetical growth of a $10,000 investment in the Fund and the comparative index. The Fund’s past performance is not a good predictor of the Fund’s future performance. |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | May 30, 2018 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit hartfordfunds.com for the most recent performance information. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 110,757,494 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 136 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 254,038 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 51.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of July 31, 2026
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| Holdings [Text Block] | Graphical Representation of Holdings as of July 31, 2026 The table below shows the investment makeup of the Fund, representing the percentage of net assets of the Fund. Composition by Security Type
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| C000217911 [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Hartford Core Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Hartford Core Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | HCRB | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Security Exchange Name | CboeBZX | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Hartford Core Bond ETF (the "Fund") for the period of August 1, 2025 to July 31, 2026. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at hartfordfunds.com/reports-etf. You can also request this information by contacting us by calling 1‑800‑456‑7526. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period.
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| Additional Information Phone Number | 1‑800‑456‑7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment)
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| Expenses Paid, Amount | $ 29 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.29% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what impacted its performance? Management's Discussion of Fund Performance United States (U.S.) fixed income sectors generated positive total returns during the trailing twelve-month period ended July 31, 2026. The period was defined by elevated macro uncertainty, with increasingly divergent regional policy paths, persistent inflation, and shifting geopolitical risks. On an excess return basis, credit sectors produced positive returns over duration-equivalent government bonds on tighter spreads, strong investor demand, and positive fund flows. Most developed markets’ sovereign yields finished the period higher, though the move was not uniform. U.S. Treasury yields were volatile throughout the period as markets balanced resilient economic growth, persistent inflation, and evolving expectations for Federal Reserve policy. The performance described below is relative to the Bloomberg US Aggregate Bond Index, the Fund’s performance benchmark. Top Contributors to Performance
Top Detractors to Performance
The Fund held tactical interest rate positions during the period, including interest rate futures, swaps and options. Overall duration and yield curve positioning detracted from relative results. Credit default swaps (CDX, CDS) were used to manage credit exposure and overall portfolio risk, this position had a small positive impact on performance. The views expressed reflect the opinions of Wellington Management Company, LLP as of the date of this report and are subject to change based on what we consider to be changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
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| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | Comparison of Change in Value of $ 10,000 Investment The graph below represents the hypothetical growth of a $10,000 investment in the Fund and the comparative index. The Fund’s past performance is not a good predictor of the Fund’s future performance. |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Feb. 19, 2020 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Material Change Date | Nov. 26, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit hartfordfunds.com for the most recent performance information. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 398,559,320 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 788 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 1,027,920 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 72.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of July 31, 2026
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| Holdings [Text Block] | Graphical Representation of Holdings as of July 31, 2026 The table below shows the investment makeup of the Fund, representing the percentage of net assets of the Fund. Composition by Security Type
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| Material Fund Change [Text Block] | Material Fund Changes This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's prospectus dated November 26, 2025, which is currently available at hartfordfunds.com/reports-etf or upon request by calling 1-800-456-7526 or sending an e-mail to orders@mysummaryprospectus.com. Effective as of November 26, 2025, “Counterparty Risk” was added as a principal risk of the Fund.
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| Material Fund Change Risks Change [Text Block] | Effective as of November 26, 2025, “Counterparty Risk” was added as a principal risk of the Fund.
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| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's prospectus dated November 26, 2025, which is currently available at hartfordfunds.com/reports-etf or upon request by calling 1-800-456-7526 or sending an e-mail to orders@mysummaryprospectus.com.
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| Updated Prospectus Phone Number | 1-800-456-7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Prospectus Email Address | orders@mysummaryprospectus.com | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Prospectus Web Address | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000230284 [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Hartford Strategic Income ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Hartford Strategic Income ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | HFSI | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Security Exchange Name | CboeBZX | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Hartford Strategic Income ETF (the "Fund") for the period of August 1, 2025 to July 31, 2026. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at hartfordfunds.com/reports-etf. You can also request this information by contacting us by calling 1‑800‑456‑7526. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period.
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| Additional Information Phone Number | 1‑800‑456‑7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment)
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| Expenses Paid, Amount | $ 50 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.49% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what impacted its performance? Management's Discussion of Fund Performance United States (U.S.) fixed income sectors generated positive total returns during the trailing twelve-month period ended July 31, 2026. The period was defined by elevated macro uncertainty, with increasingly divergent regional policy paths, persistent inflation, and shifting geopolitical risks. On an excess return basis, credit sectors produced positive returns over duration-equivalent government bonds on tighter spreads, strong investor demand, and positive fund flows. Most developed markets’ sovereign yields finished the period higher, though the move was not uniform. U.S. Treasury yields were volatile throughout the period as markets balanced resilient economic growth, persistent inflation, and evolving expectations for Federal Reserve policy. The performance described below is relative to the Bloomberg US Aggregate Index, the Fund’s performance benchmark. Top Contributors to Performance
Top Detractors to Performance
During the period, the Fund used futures, currency forwards and currency options to implement non-U.S. rate and currency positions and also made use of interest rate swaps and total return swaps to manage interest rate risk and duration of the portfolio. This derivative positioning aided relative results, in aggregate. Credit swaps (CDS, CDX and iTRAXX) were used to manage credit exposure and overall portfolio risk. High yield credit derivative positions contributed positively to results. The views expressed reflect the opinions of Wellington Management Company, LLP as of the date of this report and are subject to change based on what we consider to be changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
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| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | Comparison of Change in Value of $ 10,000 Investment The graph below represents the hypothetical growth of a $10,000 investment in the Fund and the comparative index. The Fund’s past performance is not a good predictor of the Fund’s future performance. |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Sep. 21, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Material Change Date | Nov. 26, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit hartfordfunds.com for the most recent performance information. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 1,072,099,870 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 1,412 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 2,587,946 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 211.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of July 31, 2026
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| Holdings [Text Block] | Graphical Representation of Holdings as of July 31, 2026 The table below shows the investment makeup of the Fund, representing the percentage of net assets of the Fund. Composition by Security Type
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| Material Fund Change [Text Block] | Material Fund Changes This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's prospectus dated November 26, 2025, which is currently available at hartfordfunds.com/reports-etf or upon request by calling 1-800-456-7526 or sending an e-mail to orders@mysummaryprospectus.com. Effective as of November 26, 2025, “Counterparty Risk” was added as a principal risk of the Fund.
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| Material Fund Change Risks Change [Text Block] | Effective as of November 26, 2025, “Counterparty Risk” was added as a principal risk of the Fund.
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| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's prospectus dated November 26, 2025, which is currently available at hartfordfunds.com/reports-etf or upon request by calling 1-800-456-7526 or sending an e-mail to orders@mysummaryprospectus.com.
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| Updated Prospectus Phone Number | 1-800-456-7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Prospectus Email Address | orders@mysummaryprospectus.com | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Prospectus Web Address | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000230731 [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Hartford Large Cap Growth ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Hartford Large Cap Growth ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | HFGO | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Security Exchange Name | CboeBZX | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Hartford Large Cap Growth ETF (the "Fund") for the period of August 1, 2025 to July 31, 2026. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at hartfordfunds.com/reports-etf. You can also request this information by contacting us by calling 1‑800‑456‑7526. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Phone Number | 1‑800‑456‑7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment)
|
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| Expenses Paid, Amount | $ 62 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.59% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what impacted its performance? Management's Discussion of Fund Performance United States (U.S.) equities, as measured by the Russell 1000 Growth Index, posted positive results for the twelve-month period ending July 31, 2026. The performance described below is relative to the Russell 1000 Growth Index, the Fund’s performance benchmark. Top Contributors to Performance
Top Detractors to Performance
The views expressed reflect the opinions of Wellington Management Company, LLP as of the date of this report and are subject to change based on what we consider to be changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
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| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | Comparison of Change in Value of $ 10,000 Investment The graph below represents the hypothetical growth of a $10,000 investment in the Fund and the comparative indices. The Fund’s past performance is not a good predictor of the Fund’s future performance. |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Nov. 09, 2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit hartfordfunds.com for the most recent performance information. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 200,832,093 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 50 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 1,071,403 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 94.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of July 31, 2026
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| Holdings [Text Block] | Graphical Representation of Holdings as of July 31, 2026 The table below shows the investment makeup of the Fund, representing the percentage of net assets of the Fund. Composition by Sector *
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| C000244148 [Member] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Hartford Alpha Capture Value ETF(formerly, Hartford Quality Value ETF) | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Hartford Alpha Capture Value ETF(formerly, Hartford Quality Value ETF) | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | ACVU | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Security Exchange Name | CboeBZX | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Hartford Alpha Capture Value ETF (the "Fund") for the period of August 1, 2025 to July 31, 2026. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at hartfordfunds.com/reports-etf. You can also request this information by contacting us by calling 1‑800‑456‑7526. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Material Fund Change Notice [Text Block] | This report describes changes to the Fund that occurred during the reporting period.
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| Additional Information Phone Number | 1‑800‑456‑7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment)
|
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| Expenses Paid, Amount | $ 52 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.45% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what impacted its performance? Management's Discussion of Fund Performance The Fund transitioned from the Hartford Quality Value ETF to the Hartford Alpha Capture Value ETF during the twelve-month period. The commentary covers the period since inception of the Hartford Alpha Capture Value ETF: April 30, 2026 through July 31, 2026. United States (U.S.) value equities, as measured by the Russell 1000 Value Index, rose over the three-month period ending July 31, 2026. Despite anxiety about the inflationary impacts of the U.S.-Iran conflict and the prospect of higher interest rates, equity markets were propelled to a series of record highs by robust corporate earnings, elevated earnings-growth expectations, solid economic data, and massive demand for Artificial Intelligence (AI). The performance described below is relative to the Russell 1000 Value Index, the Fund’s performance benchmark. Top Contributors to Performance
Top Detractors to Performance
The views expressed reflect the opinions of Wellington Management Company, LLP as of the date of this report and are subject to change based on what we consider to be changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
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| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | Comparison of Change in Value of $ 10,000 Investment The graph below represents the hypothetical growth of a $10,000 investment in the Fund and the comparative indices. The Fund’s past performance is not a good predictor of the Fund’s future performance. |
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| Average Annual Return [Table Text Block] |
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| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Material Change Date | Apr. 30, 2026 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit hartfordfunds.com for the most recent performance information. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 180,275,911 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 108 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 811,471 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 118.00% | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of July 31, 2026
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| Holdings [Text Block] | Graphical Representation of Holdings as of July 31, 2026 The table below shows the investment makeup of the Fund, representing the percentage of net assets of the Fund. Composition by Sector *
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| Material Fund Change [Text Block] | Material Fund Changes This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's prospectus dated November 26, 2025, which is currently available at hartfordfunds.com/reports-etf or upon request by calling 1-800-456-7526 or sending an e-mail to orders@mysummaryprospectus.com. Effective as of April 30, 2026, the Fund's name, ticker symbol, principal investment strategy, and portfolio manager were changed. As a result of the changes to the principal investment strategy, the principal risks of Quantitative Investing Risk and Active Trading Risk were added.
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| Material Fund Change Name [Text Block] | Effective as of April 30, 2026, the Fund's name, ticker symbol, principal investment strategy, and portfolio manager were changed. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Material Fund Change Strategies [Text Block] | Effective as of April 30, 2026, the Fund's name, ticker symbol, principal investment strategy, and portfolio manager were changed. As a result of the changes to the principal investment strategy, the principal risks of Quantitative Investing Risk and Active Trading Risk were added.
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| Material Fund Change Risks Change [Text Block] | As a result of the changes to the principal investment strategy, the principal risks of Quantitative Investing Risk and Active Trading Risk were added. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Summary of Change Legend [Text Block] | This is a summary of certain changes to the Fund since August 1, 2025. For more complete information, you may review the Fund's prospectus dated November 26, 2025, which is currently available at hartfordfunds.com/reports-etf or upon request by calling 1-800-456-7526 or sending an e-mail to orders@mysummaryprospectus.com.
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| Updated Prospectus Phone Number | 1-800-456-7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Prospectus Email Address | orders@mysummaryprospectus.com | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Prospectus Web Address | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Shareholder Report [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Hartford Dynamic Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Hartford Dynamic Bond ETF | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | DYNB | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Security Exchange Name | NASDAQ | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Hartford Dynamic Bond ETF (the "Fund") for the period of September 23, 2025 (commencement of operations of Fund) to July 31, 2026. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at hartfordfunds.com/reports-etf. You can also request this information by contacting us by calling 1‑800‑456‑7526. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Phone Number | 1‑800‑456‑7526 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | hartfordfunds.com/reports-etf | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expenses [Text Block] | What were the Fund costs for the last year? (Based on a hypothetical $10,000 investment)
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| Expenses Paid, Amount | $ 51 | [1] | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.60% | [2] | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | How did the Fund perform last year and what impacted its performance? Management's Discussion of Fund Performance United States (U.S.) fixed income sectors generated positive total returns during the trailing twelve-month period ended July 31, 2026. The period was defined by elevated macro uncertainty, with increasingly divergent regional policy paths, persistent inflation, and shifting geopolitical risks. On an excess return basis, credit sectors produced positive returns over duration-equivalent government bonds on tighter spreads, strong investor demand, and positive fund flows. Most developed markets’ sovereign yields finished the period higher, though the move was not uniform. U.S. Treasury yields were volatile throughout the period as markets balanced resilient economic growth, persistent inflation, and evolving expectations for Federal Reserve policy. The performance described below is relative to the Bloomberg US Aggregate Bond Index, the Fund’s performance benchmark, since the ETF inception date of September 23, 2025. Top Contributors to Performance
Top Detractors to Performance
During the period, the Fund employed the tactical use of interest rate futures and credit default index swaps to hedge exposure and gain liquid exposure to credit risk. Credit default index swaps contributed positively to performance while interest rate future positions had a negligible impact on results. The views expressed reflect the opinions of Wellington Management Company, LLP as of the date of this report and are subject to change based on what we consider to be changes in market, economic or other conditions. These views are not intended to be a forecast of future events and are no guarantee of future results. |
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| Performance Past Does Not Indicate Future [Text] | The Fund’s past performance is not a good predictor of the Fund’s future performance. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | Comparison of Change in Value of $ 10,000 Investment The graph below represents the hypothetical growth of a $10,000 investment in the Fund and the comparative index. The Fund’s past performance is not a good predictor of the Fund’s future performance. |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Sep. 23, 2025 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption or sale of Fund shares. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Updated Performance Information Location [Text Block] | Visit hartfordfunds.com for the most recent performance information. | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 61,972,942 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 168 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 229,035 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 808.00% | [3] | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | Key Fund Statistics as of July 31, 2026
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| Holdings [Text Block] | Graphical Representation of Holdings as of July 31, 2026 The table below shows the investment makeup of the Fund, representing the percentage of net assets of the Fund. Composition by Security Type
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