Shareholder Report |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Jun. 30, 2026
USD ($)
Holding
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| Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Document Type | N-CSR | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Amendment Flag | false | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Registrant Name | Virtus Managed Account Completion Shares (MACS) Trust | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Central Index Key | 0002025137 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Entity Investment Company Type | N-1A | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Document Period End Date | Jun. 30, 2026 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C000252210 [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Virtus Newfleet ABS MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Virtus Newfleet ABS MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | VMADX | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Virtus Newfleet ABS MACS (“Fund”) for the period of July 1, 2025 to June 30, 2026. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.virtus.com/investor-resources/completion-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Phone Number | 1‑800‑243‑1574 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | https://www.virtus.com/investor-resources/completion-fund-documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | What factors impacted Fund performance over the reporting period? The Fund’s overweight positions in credit cards, timeshares, and unsecured consumer loans, that is, those without collateral, all contributed to performance relative to the ICE BofA 1-3 Year A-BBB U.S. Corporate Index (the "Index") for the 12-month period. Due to a strong economy, spending by U.S. consumers proved resilient during the period. The Fund’s exposure to the consumer, particularly through bonds that were lower in the capital structure, performed well as investor demand for these securities increased. Bonds that are lower in the capital structure have a lower likelihood of being repaid in the event of a default by the bond issuer. The following table outlines key factors that materially affected the Fund’s performance during the reporting period.
The preceding information is the opinion of portfolio management only through the end of the period stated. Any such opinions are subject to change at any time based upon market or other conditions and should not be relied upon as investment advice. Performance figures assume reinvestment of distributions and exclude the effect of sales charges. Performance data quoted represents past results. Past performance is no guarantee of future results, and there is no guarantee that market forecasts will be realized.
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| Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | How has the Fund historically performed? The following graph compares the initial and subsequent account values at the end of each of the most recently completed fiscal years from inception (February 5, 2025). It assumes a $10,000 initial investment from inception, in appropriate broad-based securities market and style-specific indexes for the same period. Performance assumes reinvestment of dividends and capital gain distributions. GROWTH OF $10,000 |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Feb. 05, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 32,401,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 86 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 39.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of June 30, 2026)
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| Holdings [Text Block] | Asset Allocation(1)
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| C000252211 [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Virtus Newfleet CMBS MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Virtus Newfleet CMBS MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | VMAEX | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Virtus Newfleet CMBS MACS (“Fund”) for the period of July 1, 2025 to June 30, 2026. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.virtus.com/investor-resources/completion-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Phone Number | 1‑800‑243‑1574 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | https://www.virtus.com/investor-resources/completion-fund-documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | What factors impacted Fund performance over the reporting period? The Fund slightly outperformed the Bloomberg CMBS Erisa Eligible Bond Index (the "Index"), driven by overall positive credit selection and an overall shorter duration relative to the Index. Duration measures a bond’s or fund’s sensitivity to interest rate or other changes (such as changes in a bond’s yield), and is expressed as several years or days. The higher the number, the greater the risk. The Fund’s exposure to Single Asset Single Borrower (SASB) deals, specifically those backed by trophy office buildings and hospitality properties, was a contributing factor for the period. In addition, the commercial real estate sector increased the availability of transactional data during the period. This provided increased transparency for property valuations, which improved demand for the asset class. The following table outlines key factors that materially affected the Fund’s performance during the reporting period.
The preceding information is the opinion of portfolio management only through the end of the period stated. Any such opinions are subject to change at any time based upon market or other conditions and should not be relied upon as investment advice. Performance figures assume reinvestment of distributions and exclude the effect of sales charges. Performance data quoted represents past results. Past performance is no guarantee of future results, and there is no guarantee that market forecasts will be realized.
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| Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | How has the Fund historically performed? The following graph compares the initial and subsequent account values at the end of each of the most recently completed fiscal years from inception (February 5, 2025). It assumes a $10,000 initial investment from inception, in appropriate broad-based securities market and style-specific indexes for the same period. Performance assumes reinvestment of dividends and capital gain distributions. GROWTH OF $10,000 |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Feb. 05, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 16,550,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 22 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 33.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of June 30, 2026)
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| Holdings [Text Block] | Asset Allocation(1)
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| C000252212 [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Virtus Newfleet Floating Rate MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Virtus Newfleet Floating Rate MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | VMAFX | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Virtus Newfleet Floating Rate MACS (“Fund”) for the period of July 1, 2025 to June 30, 2026. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.virtus.com/investor-resources/completion-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Phone Number | 1‑800‑243‑1574 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | https://www.virtus.com/investor-resources/completion-fund-documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | What factors impacted Fund performance over the reporting period? The Fund lagged the S&P UBS Leveraged Loan Index for the 12-month period. An overweight to higher-quality loans and an underweight to lower-rated credits added value as higher quality outperformed. Industry positioning was also additive, led by a meaningful underweight to technology, which reached new price lows and saw spreads widen amid concerns about artificial intelligence ("AI")-related disruption over the period. Spread refers to the additional yield over the yield of a risk-free government bond. Underperformance was driven almost entirely by issue selection in three food, packaging, and cable issues that underwent liability management exercises (LMEs). In an LME, a company proactively restructures its debt out of court, which could have negative implications for certain current loan holders. The Fund’s residual cash position was a modest drag during a period of positive loan returns. Selection was otherwise constructive across much of the quality spectrum—including BBB-, split BB-, BB-, and split B-rated issues—as well as in manufacturing, broadcasting, and chemicals. The following table outlines key factors that materially affected the Fund’s performance during the reporting period.
The preceding information is the opinion of portfolio management only through the end of the period stated. Any such opinions are subject to change at any time based upon market or other conditions and should not be relied upon as investment advice. Performance figures assume reinvestment of distributions and exclude the effect of sales charges. Performance data quoted represents past results. Past performance is no guarantee of future results, and there is no guarantee that market forecasts will be realized.
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| Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | How has the Fund historically performed? The following graph compares the initial and subsequent account values at the end of each of the most recently completed fiscal years from inception (February 5, 2025). It assumes a $10,000 initial investment from inception, in appropriate broad-based securities market and style-specific indexes for the same period. Performance assumes reinvestment of dividends and capital gain distributions. GROWTH OF $10,000 |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Feb. 05, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 15,622,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 179 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 49.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of June 30, 2026)
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| Holdings [Text Block] | Asset Allocation(1)
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| C000252213 [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Virtus Newfleet High Yield MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Virtus Newfleet High Yield MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | VMAHX | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Virtus Newfleet High Yield MACS (“Fund”) for the period of July 1, 2025 to June 30, 2026. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.virtus.com/investor-resources/completion-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Phone Number | 1‑800‑243‑1574 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | https://www.virtus.com/investor-resources/completion-fund-documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | What factors impacted Fund performance over the reporting period? Positive issue selection in technology, financial/lease, and satellite, as well as positive issue selection within the single-B rating tier, contributed to the Fund’s outperformance relative to the Bloomberg U.S. High Yield 2% Issuer Capped Bond Index (the "Index"). Issue selection in media cable, consumer products, and industrial other hurt relative performance. The biggest contributors to absolute performance for the 12-month period were bonds issued by Rackspace Technology, Ferrellgas, Community Health, Texas Capital Bancshares, and Telesat Canada. The biggest detractors from absolute performance were bonds issued by CSC Holdings, Kronos Acquisition, Unifrax, SGUS LLC, and Ineos Quattro. The following table outlines key factors that materially affected the Fund’s performance during the reporting period.
The preceding information is the opinion of portfolio management only through the end of the period stated. Any such opinions are subject to change at any time based upon market or other conditions and should not be relied upon as investment advice. Performance figures assume reinvestment of distributions and exclude the effect of sales charges. Performance data quoted represents past results. Past performance is no guarantee of future results, and there is no guarantee that market forecasts will be realized.
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| Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | How has the Fund historically performed? The following graph compares the initial and subsequent account values at the end of each of the most recently completed fiscal years from inception (February 5, 2025). It assumes a $10,000 initial investment from inception, in appropriate broad-based securities market and style-specific indexes for the same period. Performance assumes reinvestment of dividends and capital gain distributions. GROWTH OF $10,000 |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Feb. 05, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 20,596,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 213 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 48.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of June 30, 2026)
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| Holdings [Text Block] | Asset Allocation(1)
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| C000252214 [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Virtus Newfleet RMBS MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Virtus Newfleet RMBS MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | VMAJX | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Virtus Newfleet RMBS MACS (“Fund”) for the period of July 1, 2025 to June 30, 2026. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.virtus.com/investor-resources/completion-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Phone Number | 1‑800‑243‑1574 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | https://www.virtus.com/investor-resources/completion-fund-documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | What factors impacted Fund performance over the reporting period? The Fund’s yield curve positioning during the period emphasized shorter maturities in an effort to reduce exposure to interest rate risk. A yield curve is a line chart that compares the interest rates of bonds with the same credit quality but different maturity dates. This positioning, as well as an underweight to U.S. agency mortgage-backed securities (MBS), detracted from performance for the period relative to the Bloomberg U.S. Mortgage-Backed Securities Index (the "Index"). Short-term interest rates rose faster than long-term rates during the reporting period, causing the yield curve to flatten, an indicator of a potential economic downturn. The Fund’s yield curve positioning helped to mitigate losses. However, the Index’s agency MBS credit spreads tightened more than the Fund’s non-agency residential mortgage-backed securities (RMBS). Spread refers to the additional yield over the yield of a risk-free government bond. The Index’s holdings benefited from a government announcement launching a large $200 billion agency MBS purchase program, which drove spreads tighter. The Fund’s 100% exposure to RMBS over agency MBS offered competitive risk-adjusted yields but was met with record levels of new issue supply during the period. This weighed on new issue pricing levels versus the Index. A resilient economy and housing market caused valuations of RMBS to tighten and remain firm despite the record supply, allowing for positive total returns. The following table outlines key factors that materially affected the Fund’s performance during the reporting period.
The preceding information is the opinion of portfolio management only through the end of the period stated. Any such opinions are subject to change at any time based upon market or other conditions and should not be relied upon as investment advice. Performance figures assume reinvestment of distributions and exclude the effect of sales charges. Performance data quoted represents past results. Past performance is no guarantee of future results, and there is no guarantee that market forecasts will be realized.
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| Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | How has the Fund historically performed? The following graph compares the initial and subsequent account values at the end of each of the most recently completed fiscal years from inception (February 5, 2025). It assumes a $10,000 initial investment from inception, in appropriate broad-based securities market and style-specific indexes for the same period. Performance assumes reinvestment of dividends and capital gain distributions. GROWTH OF $10,000 |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Feb. 05, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 31,858,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 80 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 16.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of June 30, 2026)
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| Holdings [Text Block] | Asset Allocation(1)
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| C000252215 [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Virtus Seix High Yield MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Virtus Seix High Yield MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | VMAKX | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Virtus Seix High Yield MACS (“Fund”) for the period of July 1, 2025 to June 30, 2026. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.virtus.com/investor-resources/completion-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Phone Number | 1‑800‑243‑1574 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | https://www.virtus.com/investor-resources/completion-fund-documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | What factors impacted Fund performance over the reporting period? The Fund’s underweight to the riskiest parts of the high yield market, as well as security selection in the BB and single-B ratings cohorts led it to underperform the ICE BofA U.S. High Yield Index (the "Index") for the 12-month period. Lower-rated credits outpaced higher-rated credits for the fiscal year. Additionally, certain industries were negatively affected by a projected disruption to their business models from artificial intelligence ("AI"). The Fund focuses on higher-quality, non-registered issues within the high yield space. While the allocation to higher quality enabled the Fund to participate in the market’s performance overall, it was a detractor for the year on a relative basis. For the 12-month period, top industry contributors to relative performance included building construction, technology, and diversified manufacturing/other industrial. Industry detractors from relative performance included financials, services/environmental, and healthcare/pharmaceuticals. The following table outlines key factors that materially affected the Fund’s performance during the reporting period.
The preceding information is the opinion of portfolio management only through the end of the period stated. Any such opinions are subject to change at any time based upon market or other conditions and should not be relied upon as investment advice. Performance figures assume reinvestment of distributions and exclude the effect of sales charges. Performance data quoted represents past results. Past performance is no guarantee of future results, and there is no guarantee that market forecasts will be realized.
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| Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | How has the Fund historically performed? The following graph compares the initial and subsequent account values at the end of each of the most recently completed fiscal years from inception (February 5, 2025). It assumes a $10,000 initial investment from inception, in appropriate broad-based securities market and style-specific indexes for the same period. Performance assumes reinvestment of dividends and capital gain distributions. GROWTH OF $10,000 |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Feb. 05, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 8,488,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 126 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 36.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of June 30, 2026)
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| Holdings [Text Block] | Asset Allocation(1)
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| C000252216 [Member] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report [Line Items] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fund Name | Virtus Stone Harbor EMD MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Class Name | Virtus Stone Harbor EMD MACS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Trading Symbol | VMALX | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual or Semi-Annual Statement [Text Block] | This annual shareholder report contains important information about the Virtus Stone Harbor EMD MACS (“Fund”) for the period of July 1, 2025 to June 30, 2026. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Shareholder Report Annual or Semi-Annual | annual shareholder report | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information [Text Block] | You can find additional information about the Fund at https://www.virtus.com/investor-resources/completion-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Phone Number | 1‑800‑243‑1574 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Information Website | https://www.virtus.com/investor-resources/completion-fund-documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Expense Ratio, Percent | 0.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Factors Affecting Performance [Text Block] | What factors impacted Fund performance over the reporting period? Country and issue selection decisions had a positive impact on performance relative to the J.P. Morgan CEMBI Broad Diversified Index (the "Index"), for the reporting period. Exposures in all regions contributed to performance. Issue selection in Argentina was the single largest contributor, while overweights in Ghana and Ukraine were also significant contributors. In terms of industry attribution, an overweight to energy exploration & production (E&P) was a large contributor to performance, as was issue selection in the electric industry. The Fund’s overweight to Brazil negatively impacted performance, as did issue selection in the services/other industry. Overweight exposure to lower-quality credits had a positive impact, as did the Fund’s underweight to higher-rated credits. Issue selection within BB-rated bonds detracted from relative returns. The following table outlines key factors that materially affected the Fund’s performance during the reporting period.
The preceding information is the opinion of portfolio management only through the end of the period stated. Any such opinions are subject to change at any time based upon market or other conditions and should not be relied upon as investment advice. Performance figures assume reinvestment of distributions and exclude the effect of sales charges. Performance data quoted represents past results. Past performance is no guarantee of future results, and there is no guarantee that market forecasts will be realized.
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| Performance Past Does Not Indicate Future [Text] | Past performance does not guarantee future results. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Line Graph [Table Text Block] | How has the Fund historically performed? The following graph compares the initial and subsequent account values at the end of each of the most recently completed fiscal years from inception (February 5, 2025). It assumes a $10,000 initial investment from inception, in appropriate broad-based securities market and style-specific indexes for the same period. Performance assumes reinvestment of dividends and capital gain distributions. GROWTH OF $10,000 |
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| Average Annual Return [Table Text Block] |
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| Performance Inception Date | Feb. 05, 2025 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| No Deduction of Taxes [Text Block] | The above table and graph do not reflect the deduction of taxes that a shareholder would pay on fund distributions or the redemption of shares. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Net Assets | $ 5,196,000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Holdings Count | Holding | 146 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Advisory Fees Paid, Amount | $ 0 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Investment Company Portfolio Turnover | 40.00% | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Additional Fund Statistics [Text Block] | KEY FUND STATISTICS (as of June 30, 2026)
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| Holdings [Text Block] | Asset Allocation(1)
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