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Virtus Seix High Yield Fund  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Virtus Seix High Yield Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The fund has an investment objective of seeking high income and, secondarily, capital appreciation.
Objective, Secondary [Text Block] rr_ObjectiveSecondaryTextBlock secondarily, capital appreciation.
Expense [Heading] rr_ExpenseHeading Fees and Expenses
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

The tables below illustrate the fees and expenses that you may pay if you buy, hold and sell shares of the fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below. You may qualify for sales charge discounts in Class A Shares if you and your family invest, or agree to invest in the future, at least $50,000 in Virtus Funds. More information on these and other discounts is available: (i) from your financial professional or other financial intermediary; (ii) under “Sales Charges” on page 87 of the fund’s prospectus; and (iii) with respect to purchase of shares through specific intermediaries, in Appendix A to the fund’s prospectus, entitled “Intermediary Sales Charge Discounts and Waivers.”

The Virtus Seix High Yield Fund, a series of Virtus Asset Trust, is the successor of the RidgeWorth Seix High Yield Fund, a series of RidgeWorth Funds (“Predecessor Fund”), resulting from a reorganization of the Predecessor Fund with and into the fund.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the fund’s performance. During the most recent fiscal year, the fund’s portfolio turnover rate was 72% of the average value of its portfolio.

Portfolio Turnover, Rate rr_PortfolioTurnoverRate 72.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts You may qualify for sales charge discounts in Class A Shares if you and your family invest, or agree to invest in the future, at least $50,000 in Virtus Funds.
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods or continued to hold them. The example also assumes that your investment has a 5% return each year, that the fund’s operating expenses remain the same and that the expense reimbursement agreement remains in place for the contractual period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] rr_ExpenseExampleByYearCaption Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

Under normal circumstances, the fund invests in various types of lower-rated, higher yielding debt instruments, including corporate obligations, floating rate loans and other debt obligations. The fund may invest in debt obligations of U.S. and non-U.S. issuers, including emerging market debt. The fund’s investment in non-U.S. issuers may at times be significant.

Under normal circumstances, the fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in high yield securities. These securities will be chosen from the broad universe of available U.S. dollar denominated, high yield securities rated below investment grade by the ICE BofA US Cash Pay High Yield Index or unrated securities that the subadviser believes are of comparable quality. Such securities are commonly known as “junk bonds” and present greater risks than investment grade bonds. Although the fund seeks to achieve its investment objective primarily through investment in high yield securities, the fund may invest up to 20% of its net assets in investment grade instruments.

The fund will be managed with a duration that is close to the fund’s comparative benchmark, the ICE BofA US High Yield BB-B Constrained Index, which is generally between 3 and 6 years. Duration measures a bond or fund’s sensitivity to interest rate or other changes (such as changes in a bond’s yield) and is expressed as a number of years or days. The higher the number, the greater the risk. Under normal circumstances, for example, if a portfolio has a duration of 5 years, its value will change by 5% if yields change by 1%. Shorter duration bonds generally result in lower expected volatility. The fund may also invest a portion of its assets in instruments that are restricted as to resale.

In addition, to implement its investment strategy, the fund may buy or sell derivative instruments (such as swaps, including credit default swaps, futures and warrants) to use as a substitute for a purchase or sale of a position in the underlying assets and/or as part of a strategy designed to reduce exposure to other risks, such as interest rate or credit risks. The fund may count the value of certain derivatives with below investment grade fixed income characteristics towards its policy to invest, under normal circumstances, at least 80% of its net assets in high yield securities.
Strategy Portfolio Concentration [Text] rr_StrategyPortfolioConcentration Under normal circumstances, the fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in high yield securities.
Risk [Heading] rr_RiskHeading Principal Risks
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance Information
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

The fund has adopted the past performance of the Predecessor Fund as its own. The Predecessor Fund and the fund have identical investment objectives and strategies. The bar chart and table below provide some indication of the potential risks of investing in the fund. The fund’s past performance, before and after taxes, is not necessarily an indication of how the fund will perform in the future.

The bar chart shows changes in the fund’s and Predecessor Fund’s performance from year to year over a 10-year period. The table shows how the fund’s and Predecessor Fund’s average annual returns compare to those of a broad-based securities market index and a style-specific index that reflects the market sectors in which the fund invests. Updated performance information is available at virtus.com or by calling 800-243-1574.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The fund has adopted the past performance of the Predecessor Fund as its own. The Predecessor Fund and the fund have identical investment objectives and strategies. The bar chart and table below provide some indication of the potential risks of investing in the fund.
Performance Additional Market Index [Text] rr_PerformanceAdditionalMarketIndex ICE BofA US High Yield BB-B Constrained Index (reflects no deduction for fees, expenses or taxes) 6.84% 3.64% 4.87% 4.91%      The Bloomberg U.S. Aggregate Bond Index measures the U.S. investment grade fixed rate bond market. The index is calculated on a total return basis. The index is unmanaged and not available for direct investment.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 800-243-1574
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress virtus.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The fund’s past performance, before and after taxes, is not necessarily an indication of how the fund will perform in the future.
Bar Chart [Heading] rr_BarChartHeading Calendar year total returns for Class I Shares (includes returns of the Predecessor Fund)
Bar Chart Does Not Reflect Sales Loads [Text] rr_BarChartDoesNotReflectSalesLoads Returns do not reflect sales charges applicable to other share classes and would be lower if they did.
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock
      

Best Quarter:

2020, Q2:

10.53%

Worst Quarter:

2020, Q1:

-10.41%
Performance Table Heading rr_PerformanceTableHeading Average Annual Total Returns (for the periods ended 12/31/24; includes returns of the Predecessor Fund)
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. After-tax returns are shown only for Class I Shares; after-tax returns for other classes will vary. Actual after-tax returns depend on the investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities. In certain cases, the Return After Taxes on Distributions and Sale of Fund Shares for a period may be higher than other return figures for the same period. This will occur when a capital loss is realized upon the sale of fund shares and provides an assumed tax benefit that increases the return.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after-tax returns depend on the investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities.
Performance Table One Class of after Tax Shown [Text] rr_PerformanceTableOneClassOfAfterTaxShown After-tax returns are shown only for Class I Shares; after-tax returns for other classes will vary.
Performance Table Explanation after Tax Higher rr_PerformanceTableExplanationAfterTaxHigher In certain cases, the Return After Taxes on Distributions and Sale of Fund Shares for a period may be higher than other return figures for the same period. This will occur when a capital loss is realized upon the sale of fund shares and provides an assumed tax benefit that increases the return.
Performance Table Closing [Text Block] rr_PerformanceTableClosingTextBlock

The Bloomberg U.S. Aggregate Bond Index measures the U.S. investment grade fixed rate bond market. The index is calculated on a total return basis. The index is unmanaged and not available for direct investment.

The ICE BofA US High Yield BB-B Constrained Index measures performance of BB/B U.S. dollar-denominated corporate bonds publicly issued in the U.S. domestic market, and is restricted to a maximum of 2% per issuer. The index is calculated on a total return basis. The index is unmanaged and not available for direct investment.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. After-tax returns are shown only for Class I Shares; after-tax returns for other classes will vary. Actual after-tax returns depend on the investor’s tax situation and may differ from those shown. After-tax returns are not relevant to investors who hold fund shares in tax-deferred accounts or to shares held by non-taxable entities. In certain cases, the Return After Taxes on Distributions and Sale of Fund Shares for a period may be higher than other return figures for the same period. This will occur when a capital loss is realized upon the sale of fund shares and provides an assumed tax benefit that increases the return.
Virtus Seix High Yield Fund | Principal Risks  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

Principal Risks

The fund may not achieve its objective(s), and it is not intended to be a complete investment program. The value of the fund’s investments that supports your share value may decrease. If between the time you purchase shares and the time you sell shares the value of the fund’s investments decreases, you will lose money. Investment values can decrease for a number of reasons. Conditions affecting the overall economy, specific industries or companies in which the fund invests can be worse than expected, and investments may fail to perform as the subadviser expects. As a result, the value of your shares may decrease. Purchase and redemption activities by fund shareholders may impact the management of the fund and its ability to achieve its investment objective(s). The principal risks of investing in the fund are identified below.
Virtus Seix High Yield Fund | Risk Lose Money [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock If between the time you purchase shares and the time you sell shares the value of the fund’s investments decreases, you will lose money.
Virtus Seix High Yield Fund | Credit Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> Credit Risk: If the issuer of a debt instrument fails to pay interest or principal in a timely manner, or negative perceptions exist in the market of the issuer’s ability to make such payments, the price of the security may decline.
Virtus Seix High Yield Fund | Interest Rate Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> Interest Rate Risk: The values of debt instruments may rise or fall in response to changes in interest rates, and this risk may be enhanced for securities with longer maturities.
Virtus Seix High Yield Fund | High-Yield/High-Risk Fixed Income Securities (Junk Bonds) Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> High-Yield/High-Risk Fixed Income Securities (Junk Bonds) Risk: There is a greater risk of issuer default, less liquidity, and increased price volatility related to high-yield/high-risk securities than investment grade securities, and high-yield/high-risk securities are generally considered to be speculative.
Virtus Seix High Yield Fund | Foreign Investing Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> Foreign Investing Risk: Investing in foreign securities subjects the fund to additional risks such as increased volatility; currency fluctuations; less liquidity; less publicly available information about the foreign investment; and political, regulatory, economic, and market risk.
Virtus Seix High Yield Fund | Market Volatility Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> Market Volatility Risk: The value of the securities in the fund may go up or down in response to the prospects of individual companies and/or general economic conditions. Price changes may be short- or long-term. Local, regional or global events such as war or military conflict (e.g., Russia’s invasion of Ukraine), geopolitical risk, acts of terrorism, the spread of infectious illness or other public health issue, recessions, tariffs and other restrictions on trade, or the threat or potential of one or more such events and developments, could have a significant impact on the fund and its investments, including hampering the ability of the fund’s portfolio manager(s) to invest the fund’s assets as intended.
Virtus Seix High Yield Fund | Bank Loan Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> Bank Loan Risk: In addition to the risks typically associated with high-yield/high-risk fixed income securities, bank loans may be unsecured or not fully collateralized, may be subject to restrictions on resale, may be less liquid and may trade infrequently on the secondary market. Bank loans settle on a delayed basis; thus, sale proceeds may not be available to meet redemptions for a substantial period of time after the sale of the loan.
Virtus Seix High Yield Fund | Derivatives Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> Derivatives Risk: Derivatives and other similar instruments (collectively referred to in this section as “derivatives”) may include, among other things, futures, options, forwards and swap agreements and may be used in order to hedge portfolio risks, create leverage or attempt to increase returns. Investments in derivatives may result in increased volatility and the fund may incur a loss greater than its principal investment.
Virtus Seix High Yield Fund | Emerging Market Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> Emerging Market Risk: Emerging markets securities may be more volatile, or more greatly affected by negative conditions, than those of their counterparts in more established foreign markets. Such securities may also be subject to Sanctions Risk.
Virtus Seix High Yield Fund | Sanctions Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> Sanctions Risk: The imposition of sanctions and other similar measures could cause a decline in the value and/or liquidity of securities issued by or tied to the sanctioned country and increase market volatility and disruption in the sanctioned country and throughout the world. Sanctions and other similar measures could limit or prevent the fund from buying and selling securities (in the sanctioned country and other markets), significantly delay or prevent the settlement of transactions, and negatively impact the fund’s liquidity and performance.
Virtus Seix High Yield Fund | Illiquid and Restricted Securities Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> Illiquid and Restricted Securities Risk: Certain securities in which the fund invests may be difficult to sell at the time and price beneficial to the fund, for example due to low trading volumes or legal restrictions.
Virtus Seix High Yield Fund | Income Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> Income Risk: Income received from the fund may vary widely over the short- and long-term and/or be less than anticipated if the proceeds from maturing securities in the fund are reinvested in lower-yielding securities.
Virtus Seix High Yield Fund | Prepayment/Call Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> Prepayment/Call Risk: Issuers may prepay or call their fixed rate obligations when interest rates fall, forcing the fund to reinvest in obligations with lower interest rates and the fund may not benefit fully from the increase in value that other fixed income investments experience when interest rates decline.
Virtus Seix High Yield Fund | Redemption Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> Redemption Risk: One or more large shareholders or groups of shareholders may redeem their holdings in the fund, resulting in an adverse impact on remaining shareholders in the fund by causing the fund to take actions it would not otherwise have taken.
Virtus Seix High Yield Fund | Unrated Fixed Income Securities Risk  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock

> Unrated Fixed Income Securities Risk: If the subadviser is unable to accurately assess the quality of an unrated fixed income security, the fund may invest in a security with greater risk than intended, or the securities may be more difficult to sell than anticipated.
Virtus Seix High Yield Fund | Bloomberg U.S. Aggregate Bond Index  
Risk/Return: rr_RiskReturnAbstract  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
Label rr_AverageAnnualReturnLabel Bloomberg U.S. Aggregate Bond Index
1 Year rr_AverageAnnualReturnYear01 1.25%
5 Years rr_AverageAnnualReturnYear05 (0.33%)
10 Years rr_AverageAnnualReturnYear10 1.35%
Since Inception rr_AverageAnnualReturnSinceInception 0.86%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 2016
Virtus Seix High Yield Fund | ICE BofA US High Yield BB-B Constrained Index  
Risk/Return: rr_RiskReturnAbstract  
Index No Deduction for Fees, Expenses, Taxes [Text] rr_IndexNoDeductionForFeesExpensesTaxes (reflects no deduction for fees, expenses or taxes)
Label rr_AverageAnnualReturnLabel ICE BofA US High Yield BB-B Constrained Index
1 Year rr_AverageAnnualReturnYear01 6.84%
5 Years rr_AverageAnnualReturnYear05 3.64%
10 Years rr_AverageAnnualReturnYear10 4.87%
Since Inception rr_AverageAnnualReturnSinceInception 4.91%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 2016
Virtus Seix High Yield Fund | Class A Shares  
Risk/Return: rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol HYPSX
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 3.75%
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and Shareholder Servicing (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Other Expenses rr_OtherExpensesOverAssets 0.39%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.09%
Less: Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.27%) [1]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 0.82% [1]
1 Year rr_ExpenseExampleYear01 $ 456
3 Years rr_ExpenseExampleYear03 683
5 Years rr_ExpenseExampleYear05 928
10 Years rr_ExpenseExampleYear10 1,631
1 Year rr_ExpenseExampleNoRedemptionYear01 456
3 Years rr_ExpenseExampleNoRedemptionYear03 683
5 Years rr_ExpenseExampleNoRedemptionYear05 928
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,631
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 2.84%
5 Years rr_AverageAnnualReturnYear05 3.34%
10 Years rr_AverageAnnualReturnYear10 4.08%
Virtus Seix High Yield Fund | Class I Shares  
Risk/Return: rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol SAMHX
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and Shareholder Servicing (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.37%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.82%
Less: Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.18%) [1]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 0.64% [1]
1 Year rr_ExpenseExampleYear01 $ 65
3 Years rr_ExpenseExampleYear03 244
5 Years rr_ExpenseExampleYear05 437
10 Years rr_ExpenseExampleYear10 997
1 Year rr_ExpenseExampleNoRedemptionYear01 65
3 Years rr_ExpenseExampleNoRedemptionYear03 244
5 Years rr_ExpenseExampleNoRedemptionYear05 437
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 997
Annual Return 2015 rr_AnnualReturn2015 (4.91%)
Annual Return 2016 rr_AnnualReturn2016 13.30%
Annual Return 2017 rr_AnnualReturn2017 6.99%
Annual Return 2018 rr_AnnualReturn2018 (1.70%)
Annual Return 2019 rr_AnnualReturn2019 12.91%
Annual Return 2020 rr_AnnualReturn2020 9.93%
Annual Return 2021 rr_AnnualReturn2021 3.88%
Annual Return 2022 rr_AnnualReturn2022 (10.51%)
Annual Return 2023 rr_AnnualReturn2023 12.87%
Annual Return 2024 rr_AnnualReturn2024 7.04%
Bar Chart, Year to Date Return rr_BarChartYearToDateReturn none
Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 10.53%
Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2020
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (10.41%)
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 7.04%
5 Years rr_AverageAnnualReturnYear05 4.30%
10 Years rr_AverageAnnualReturnYear10 4.68%
Virtus Seix High Yield Fund | Class I Shares | After Taxes on Distributions  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions
1 Year rr_AverageAnnualReturnYear01 4.11%
5 Years rr_AverageAnnualReturnYear05 2.02%
10 Years rr_AverageAnnualReturnYear10 2.34%
Virtus Seix High Yield Fund | Class I Shares | After Taxes on Distributions and Sales  
Risk/Return: rr_RiskReturnAbstract  
Label rr_AverageAnnualReturnLabel Return After Taxes on Distributions and Sale of Fund Shares
1 Year rr_AverageAnnualReturnYear01 4.11%
5 Years rr_AverageAnnualReturnYear05 2.29%
10 Years rr_AverageAnnualReturnYear10 2.52%
Virtus Seix High Yield Fund | Class R6 Shares  
Risk/Return: rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol HYIZX
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (as a percentage of Offering Price) rr_MaximumDeferredSalesChargeOverOfferingPrice none
Management Fees rr_ManagementFeesOverAssets 0.45%
Distribution and Shareholder Servicing (12b-1) Fees rr_DistributionAndService12b1FeesOverAssets none
Other Expenses rr_OtherExpensesOverAssets 0.23%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.68%
Less: Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets (0.15%) [1]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 0.53% [1]
1 Year rr_ExpenseExampleYear01 $ 54
3 Years rr_ExpenseExampleYear03 202
5 Years rr_ExpenseExampleYear05 364
10 Years rr_ExpenseExampleYear10 832
1 Year rr_ExpenseExampleNoRedemptionYear01 54
3 Years rr_ExpenseExampleNoRedemptionYear03 202
5 Years rr_ExpenseExampleNoRedemptionYear05 364
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 832
Label rr_AverageAnnualReturnLabel Return Before Taxes
1 Year rr_AverageAnnualReturnYear01 7.29%
5 Years rr_AverageAnnualReturnYear05 4.45%
Since Inception rr_AverageAnnualReturnSinceInception 5.26%
Inception Date rr_AverageAnnualReturnInceptionDate Aug. 01, 2016
[1]

The fund’s investment adviser has contractually agreed to limit the fund’s total operating expenses (excluding certain expenses, such as front-end or contingent deferred sales charges, taxes, leverage and borrowing expenses (such as commitment, amendment and renewal expenses on credit or redemption facilities), interest, brokerage commissions, expenses incurred in connection with any merger or reorganization, unusual or infrequently occurring expenses (such as litigation), acquired fund fees and expenses, and dividend expenses, if any) so that such expenses do not exceed 0.82% for Class A Shares, 0.64% for Class I Shares and 0.53% for Class R6 Shares through April 30, 2026. Prior to April 30, 2026, only the fund’s Board may modify or terminate the expense limitation agreement. Following the contractual period, the adviser may discontinue these expense reimbursement arrangements at any time. Under certain conditions, the adviser may recapture operating expenses reimbursed and/or fees waived under these arrangements for a period of three years following the date such waiver or reimbursement occurred, provided that the recapture does not cause the fund to exceed its expense limit in effect at the time of the waiver or reimbursement, and any in effect at the time of recapture, after repayment is taken into account.