| Label | Element | Value | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Virtus NFJ International Value Fund | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk/Return [Heading] | oef_RiskReturnHeading | Virtus NFJ International Value Fund | |||||||||||||||||
| Objective [Heading] | oef_ObjectiveHeading | Investment Objective | |||||||||||||||||
| Objective, Primary [Text Block] | oef_ObjectivePrimaryTextBlock | The fund seeks long-term growth of capital and income. |
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| Expense Heading [Optional Text] | oef_ExpenseHeading | Fees and Expenses | |||||||||||||||||
| Expense Narrative [Text Block] | oef_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 93 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.” |
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| Shareholder Fees Caption [Optional Text] | oef_ShareholderFeesCaption | Shareholder Fees (fees paid directly from your investment) | |||||||||||||||||
| Operating Expenses Caption [Optional Text] | oef_OperatingExpensesCaption | Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | |||||||||||||||||
| Portfolio Turnover [Heading] | oef_PortfolioTurnoverHeading | Portfolio Turnover | |||||||||||||||||
| Portfolio Turnover [Text Block] | oef_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 93% of the average value of its portfolio. |
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| Portfolio Turnover, Rate | oef_PortfolioTurnoverRate | 93.00% | |||||||||||||||||
| Expense Breakpoint Discounts [Text] | oef_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] | oef_ExpenseBreakpointMinimumInvestmentRequiredAmount | $ 50,000 | |||||||||||||||||
| Expense Example [Heading] | oef_ExpenseExampleHeading | Example | |||||||||||||||||
| Expense Example Narrative [Text Block] | oef_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: |
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| Expense Example by, Year, Caption [Text] | oef_ExpenseExampleByYearCaption | Although your actual costs may be higher or lower, based on these assumptions your costs would be: | |||||||||||||||||
| Strategy [Heading] | oef_StrategyHeading | Principal Investment Strategies | |||||||||||||||||
| Strategy Narrative [Text Block] | oef_StrategyNarrativeTextBlock | Under normal circumstances, the fund invests at least 80% of its net assets (plus borrowings made for investment purposes) in common stocks and other equity securities (such as preferred stocks, convertible securities and warrants) of value companies. As of the date of this prospectus, the fund’s subadviser considers value companies for this purpose to be those companies whose securities the portfolio managers believe have attractive valuation and fundamental strength. The fund normally invests primarily in non-U.S. companies with market capitalizations greater than $1 billion. Equity securities represent an ownership interest, or the right to acquire an ownership interest, in an issuer. Equity securities include common stocks (including depositary receipts evidencing ownership of common stock), preferred stocks and other preferred securities, convertible securities, rights and warrants, and other securities, such as hybrid securities and trust preferred securities, believed to have equity-like characteristics. The fund normally invests significantly in securities that the portfolio managers expect will generate income (for example, by paying dividends). The fund may invest up to 50% of its assets in emerging market securities and may invest a portion of its assets in equity securities of companies located in China. The fund may also achieve its exposure to non-U.S. equity securities through investing in American Depositary Receipts (ADRs). The fund may also invest in real estate investment trusts (REITs) and real estate-related investments. The portfolio managers partition the fund’s selection universe by industry and then identify what they believe to be the most attractively valued securities in each industry to determine potential holdings for the fund representing a broad range of industry groups. The portfolio managers use initial parameters and quantitative tools to narrow the fund’s selection universe and also review and consider fundamental changes. After narrowing the universe through a combination of qualitative analysis and fundamental research, the portfolio managers select securities for the fund. |
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| Summary of Definition of Rule 35d-1 Term in Fund Name [Text Block] | fnd_NmRule35d1TermDfnSmryTextBlock | As of the date of this prospectus, the fund’s subadviser considers value companies for this purpose to be those companies whose securities the portfolio managers believe have attractive valuation and fundamental strength. The fund normally invests primarily in non-U.S. companies with market capitalizations greater than $1 billion. Equity securities represent an ownership interest, or the right to acquire an ownership interest, in an issuer. Equity securities include common stocks (including depositary receipts evidencing ownership of common stock), preferred stocks and other preferred securities, convertible securities, rights and warrants, and other securities, such as hybrid securities and trust preferred securities, believed to have equity-like characteristics. | |||||||||||||||||
| Rule 35d-1 Eighty Percent Investment Policy [Text Block] | fnd_NmRule35d1EightyPctInvstmntPlcyTextBlock | Under normal circumstances, the fund invests at least 80% of its net assets (plus borrowings made for investment purposes) in common stocks and other equity securities (such as preferred stocks, convertible securities and warrants) of value companies. | |||||||||||||||||
| Strategy Portfolio Concentration [Text] | oef_StrategyPortfolioConcentration | Under normal circumstances, the fund invests at least 80% of its net assets (plus borrowings made for investment purposes) in common stocks and other equity securities (such as preferred stocks, convertible securities and warrants) of value companies. | |||||||||||||||||
| Bar Chart and Performance Table [Heading] | oef_BarChartAndPerformanceTableHeading | Performance Information | |||||||||||||||||
| Performance Narrative [Text Block] | oef_PerformanceNarrativeTextBlock | 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 performance from year to year over a 10-year period. The table shows how the fund’s average annual returns compare to those of a broad-based securities market index. Updated performance information is available at virtus.com or by calling 800-243-1574. |
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| Performance Information Illustrates Variability of Returns [Text] | oef_PerformanceInformationIllustratesVariabilityOfReturns | The bar chart and table below provide some indication of the potential risks of investing in the fund. | |||||||||||||||||
| Performance Additional Market Index [Text] | oef_PerformanceAdditionalMarketIndex | The MSCI ACWI ex USA Index (net) is a free float-adjusted market capitalization-weighted index that measures equity performance of developed and emerging markets, excluding the United States. The index is calculated on a total return basis with net dividends reinvested. The index is unmanaged and not available for direct investment. | |||||||||||||||||
| Performance Availability Phone [Text] | oef_PerformanceAvailabilityPhone | 800-243-1574 | |||||||||||||||||
| Performance Availability Website Address [Text] | oef_PerformanceAvailabilityWebSiteAddress | virtus.com | |||||||||||||||||
| Performance Past Does Not Indicate Future [Text] | oef_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] | oef_BarChartHeading | Calendar year total returns for Institutional Class Shares | |||||||||||||||||
| Bar Chart Does Not Reflect Sales Loads [Text] | oef_BarChartDoesNotReflectSalesLoads | Returns do not reflect sales charges applicable to other share classes and would be lower if they did. | |||||||||||||||||
| Bar Chart Closing [Text Block] | oef_BarChartClosingTextBlock |
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| Performance Table Heading | oef_PerformanceTableHeading | Average Annual Total Returns (for the periods ended 12/31/25) | |||||||||||||||||
| Index No Deduction for Fees, Expenses, or Taxes [Text] | oef_IndexNoDeductionForFeesExpensesTaxes | (reflects no deduction for fees or expenses) | |||||||||||||||||
| Performance Table Uses Highest Federal Rate | oef_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 Institutional Class 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. | |||||||||||||||||
| Performance Table One Class of after Tax Shown [Text] | oef_PerformanceTableOneClassOfAfterTaxShown | After-tax returns are shown only for Institutional Class Shares; after-tax returns for other classes will vary. | |||||||||||||||||
| Performance Table Explanation after Tax Higher | oef_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] | oef_PerformanceTableClosingTextBlock | The MSCI ACWI ex USA Index (net) is a free float-adjusted market capitalization-weighted index that measures equity performance of developed and emerging markets, excluding the United States. The index is calculated on a total return basis with net dividends reinvested. 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 Institutional Class 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. |
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| Virtus NFJ International Value Fund | Principal Risks | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_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 (in alphabetical order after the first six risks). |
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| Virtus NFJ International Value Fund | Risk Lose Money [Member] | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_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 NFJ International Value Fund | Market Volatility Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_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. |
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| Virtus NFJ International Value Fund | Issuer Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | > Issuer Risk: The fund will be affected by factors specific to the issuers of securities and other instruments in which the fund invests, including actual or perceived changes in the financial condition or business prospects of such issuers. |
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| Virtus NFJ International Value Fund | Equity Securities Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | > Equity Securities Risk: The value of the stocks held by the fund may be negatively affected by the financial market, industries in which the fund invests, or issuer-specific events. Focus on a particular style or in small or medium-sized companies may enhance that risk. |
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| Virtus NFJ International Value Fund | Foreign Investing Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_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. |
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| Virtus NFJ International Value Fund | Emerging Market Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_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. |
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| Virtus NFJ International Value Fund | Investing in China Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | > Investing in China Risk: The government of China maintains strict currency controls in order to achieve economic, trade and political objectives and regularly intervenes in the currency market. The Chinese government also plays a major role in the country’s economic policies regarding foreign investments. Foreign investors are subject to the risk of loss from expropriation or nationalization of their investment assets and property, governmental restrictions on foreign investments and the repatriation of capital invested. In addition, the rapid growth rate of the Chinese economy over the past several years may not continue, and the trend toward economic liberalization and disparities in wealth may result in social disorder, including violence and labor unrest. These and other factors could have a negative impact on the fund’s performance and increase the volatility of an investment in the fund. Certain securities issued by companies located or operating in China, such as China A-shares, are also subject to trading restrictions, quota limitations and less market liquidity, which could pose risks to the fund. |
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| Virtus NFJ International Value Fund | Sanctions Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_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. |
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| Virtus NFJ International Value Fund | Small and Medium Market Capitalization Companies Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | > Small and Medium Market Capitalization Companies Risk: The fund’s investments in small and medium market capitalization companies may increase the volatility and risk of loss to the fund, as compared with investments in larger, more established companies. |
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| Virtus NFJ International Value Fund | Counterparty Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | > Counterparty Risk: There is risk that a party upon whom the fund relies to complete a transaction will default. |
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| Virtus NFJ International Value Fund | Credit Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_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. |
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| Virtus NFJ International Value Fund | Currency Rate Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | > Currency Rate Risk: Fluctuations in the exchange rates between the U.S. dollar and foreign currencies may negatively affect the value of the fund’s shares. |
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| Virtus NFJ International Value Fund | Depositary Receipts Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | > Depositary Receipts Risk: Investments in foreign companies through depositary receipts may expose the fund to the same risks as direct investments in securities of foreign issuers. |
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| Virtus NFJ International Value Fund | Focused Investment Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | > Focused Investment Risk: To the extent the fund focuses its investments on a limited number of issuers, sectors, industries, geographic regions or portfolio themes, it may be subject to increased risk and volatility. |
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| Virtus NFJ International Value Fund | Liquidity Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | > Liquidity Risk: Certain instruments may be difficult or impossible to sell at a time and price beneficial to the fund. |
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| Virtus NFJ International Value Fund | Portfolio Turnover Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | > Portfolio Turnover Risk: The fund’s principal investment strategies may result in a high portfolio turnover rate. See the “Portfolio Turnover” section above for more information about the impact that portfolio turnover can have on your investment. |
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| Virtus NFJ International Value Fund | Preferred Stocks Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | > Preferred Stocks Risk: Preferred stocks may decline in price, fail to pay dividends when expected, or be illiquid. |
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| Virtus NFJ International Value Fund | Real Estate Investment Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | > Real Estate Investment Risk: The fund may be negatively affected by changes in real estate values or economic conditions, credit risk and interest rate fluctuations, changes in the value of the underlying real estate and defaults by lessees and/or borrowers. |
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| Virtus NFJ International Value Fund | Redemption Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_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. The effects of taxable gains resulting from large redemptions of fund shares would particularly impact non-redeeming shareholders who do not hold their fund shares in a tax-advantaged or tax-exempt vehicle. Such large shareholder redemptions, which may occur rapidly or unexpectedly, may cause a fund to sell portfolio securities at times when it would not otherwise do so, which may negatively impact the fund’s net asset value and liquidity. In addition, a large redemption could result in the fund’s current expenses being allocated over a smaller asset base, leading to an increase in the fund’s expense ratio. |
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| Virtus NFJ International Value Fund | Value Stocks Risk | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Risk [Text Block] | oef_RiskTextBlock | > Value Stocks Risk: The fund may underperform when value investing is out of favor or the fund’s investments may not appreciate in value as anticipated. Please see “More Information About Risks of Investing in the Funds” in the fund’s prospectus for a more detailed description of the fund’s risks. |
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| Virtus NFJ International Value Fund | MSCI ACWI ex USA Index (net) | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Average Annual Return, Label [Optional Text] | oef_AverageAnnualReturnLabel | MSCI ACWI ex USA Index (net) | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 32.39% | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 7.91% | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 8.41% | |||||||||||||||||
| Virtus NFJ International Value Fund | Class A Shares | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Trading Symbol | dei_TradingSymbol | AFJAX | |||||||||||||||||
| Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) | oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | 5.50% | |||||||||||||||||
| Maximum Deferred Sales Charge (as a percentage of Offering Price) | oef_MaximumDeferredSalesChargeOverOfferingPrice | 0.00% | |||||||||||||||||
| Management Fees (as a percentage of Assets) | oef_ManagementFeesOverAssets | 0.60% | |||||||||||||||||
| Distribution and Service (12b-1) Fees | oef_DistributionAndService12b1FeesOverAssets | 0.25% | |||||||||||||||||
| Other Expenses (as a percentage of Assets): | oef_OtherExpensesOverAssets | 0.46% | [1] | ||||||||||||||||
| Expenses (as a percentage of Assets) | oef_ExpensesOverAssets | 1.31% | |||||||||||||||||
| Fee Waiver or Reimbursement | oef_FeeWaiverOrReimbursementOverAssets | (0.01%) | [2] | ||||||||||||||||
| Net Expenses (as a percentage of Assets) | oef_NetExpensesOverAssets | 1.30% | [2] | ||||||||||||||||
| Expense Example, with Redemption, 1 Year | oef_ExpenseExampleYear01 | $ 675 | |||||||||||||||||
| Expense Example, with Redemption, 3 Years | oef_ExpenseExampleYear03 | 941 | |||||||||||||||||
| Expense Example, with Redemption, 5 Years | oef_ExpenseExampleYear05 | 1,228 | |||||||||||||||||
| Expense Example, with Redemption, 10 Years | oef_ExpenseExampleYear10 | 2,041 | |||||||||||||||||
| Expense Example, No Redemption, 1 Year | oef_ExpenseExampleNoRedemptionYear01 | 675 | |||||||||||||||||
| Expense Example, No Redemption, 3 Years | oef_ExpenseExampleNoRedemptionYear03 | 941 | |||||||||||||||||
| Expense Example, No Redemption, 5 Years | oef_ExpenseExampleNoRedemptionYear05 | 1,228 | |||||||||||||||||
| Expense Example, No Redemption, 10 Years | oef_ExpenseExampleNoRedemptionYear10 | $ 2,041 | |||||||||||||||||
| Average Annual Return, Label [Optional Text] | oef_AverageAnnualReturnLabel | Return Before Taxes | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 34.07% | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 5.02% | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 5.05% | |||||||||||||||||
| Virtus NFJ International Value Fund | Institutional Class Shares | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Trading Symbol | dei_TradingSymbol | ANJIX | |||||||||||||||||
| Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) | oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | 0.00% | |||||||||||||||||
| Maximum Deferred Sales Charge (as a percentage of Offering Price) | oef_MaximumDeferredSalesChargeOverOfferingPrice | 0.00% | |||||||||||||||||
| Management Fees (as a percentage of Assets) | oef_ManagementFeesOverAssets | 0.60% | |||||||||||||||||
| Distribution and Service (12b-1) Fees | oef_DistributionAndService12b1FeesOverAssets | 0.00% | |||||||||||||||||
| Other Expenses (as a percentage of Assets): | oef_OtherExpensesOverAssets | 0.45% | [1] | ||||||||||||||||
| Expenses (as a percentage of Assets) | oef_ExpensesOverAssets | 1.05% | |||||||||||||||||
| Fee Waiver or Reimbursement | oef_FeeWaiverOrReimbursementOverAssets | (0.10%) | [2] | ||||||||||||||||
| Net Expenses (as a percentage of Assets) | oef_NetExpensesOverAssets | 0.95% | [2] | ||||||||||||||||
| Expense Example, with Redemption, 1 Year | oef_ExpenseExampleYear01 | $ 97 | |||||||||||||||||
| Expense Example, with Redemption, 3 Years | oef_ExpenseExampleYear03 | 324 | |||||||||||||||||
| Expense Example, with Redemption, 5 Years | oef_ExpenseExampleYear05 | 570 | |||||||||||||||||
| Expense Example, with Redemption, 10 Years | oef_ExpenseExampleYear10 | 1,274 | |||||||||||||||||
| Expense Example, No Redemption, 1 Year | oef_ExpenseExampleNoRedemptionYear01 | 97 | |||||||||||||||||
| Expense Example, No Redemption, 3 Years | oef_ExpenseExampleNoRedemptionYear03 | 324 | |||||||||||||||||
| Expense Example, No Redemption, 5 Years | oef_ExpenseExampleNoRedemptionYear05 | 570 | |||||||||||||||||
| Expense Example, No Redemption, 10 Years | oef_ExpenseExampleNoRedemptionYear10 | $ 1,274 | |||||||||||||||||
| Year to Date Return, Label [Optional Text] | oef_YearToDateReturnLabel | Year to Date | |||||||||||||||||
| Bar Chart, Year to Date Return, Date | oef_BarChartYearToDateReturnDate | Sep. 30, 2026 | |||||||||||||||||
| Bar Chart, Year to Date Return | oef_BarChartYearToDateReturn | 17.76% | |||||||||||||||||
| Highest Quarterly Return, Label [Optional Text] | oef_HighestQuarterlyReturnLabel | Best Quarter | |||||||||||||||||
| Highest Quarterly Return, Date | oef_BarChartHighestQuarterlyReturnDate | Dec. 31, 2022 | |||||||||||||||||
| Highest Quarterly Return | oef_BarChartHighestQuarterlyReturn | 20.11% | |||||||||||||||||
| Lowest Quarterly Return, Label [Optional Text] | oef_LowestQuarterlyReturnLabel | Worst Quarter | |||||||||||||||||
| Lowest Quarterly Return, Date | oef_BarChartLowestQuarterlyReturnDate | Mar. 31, 2020 | |||||||||||||||||
| Lowest Quarterly Return | oef_BarChartLowestQuarterlyReturn | (23.81%) | |||||||||||||||||
| Average Annual Return, Label [Optional Text] | oef_AverageAnnualReturnLabel | Return Before Taxes | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 42.41% | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 6.59% | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 6.02% | |||||||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | (6.23%) | |||||||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 23.16% | |||||||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | (15.66%) | |||||||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 22.01% | |||||||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 9.72% | |||||||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 10.27% | |||||||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | (19.02%) | |||||||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 10.67% | |||||||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | (2.24%) | |||||||||||||||||
| Annual Return [Percent] | oef_AnnlRtrPct | 42.41% | |||||||||||||||||
| Virtus NFJ International Value Fund | Institutional Class Shares | After Taxes on Distributions | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Average Annual Return, Label [Optional Text] | oef_AverageAnnualReturnLabel | Return After Taxes on Distributions | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 39.87% | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 6.01% | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 5.18% | |||||||||||||||||
| Virtus NFJ International Value Fund | Institutional Class Shares | After Taxes on Distributions and Sales | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Average Annual Return, Label [Optional Text] | oef_AverageAnnualReturnLabel | Return After Taxes on Distributions and Sale of Fund Shares | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 25.64% | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 5.20% | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 4.52% | |||||||||||||||||
| Virtus NFJ International Value Fund | Class R6 Shares | |||||||||||||||||||
| Risk/Return: | oef_RiskReturnAbstract | ||||||||||||||||||
| Trading Symbol | dei_TradingSymbol | ANAVX | |||||||||||||||||
| Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) | oef_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | 0.00% | |||||||||||||||||
| Maximum Deferred Sales Charge (as a percentage of Offering Price) | oef_MaximumDeferredSalesChargeOverOfferingPrice | 0.00% | |||||||||||||||||
| Management Fees (as a percentage of Assets) | oef_ManagementFeesOverAssets | 0.60% | |||||||||||||||||
| Distribution and Service (12b-1) Fees | oef_DistributionAndService12b1FeesOverAssets | 0.00% | |||||||||||||||||
| Other Expenses (as a percentage of Assets): | oef_OtherExpensesOverAssets | 0.32% | [1] | ||||||||||||||||
| Expenses (as a percentage of Assets) | oef_ExpensesOverAssets | 0.92% | |||||||||||||||||
| Fee Waiver or Reimbursement | oef_FeeWaiverOrReimbursementOverAssets | (0.02%) | [2] | ||||||||||||||||
| Net Expenses (as a percentage of Assets) | oef_NetExpensesOverAssets | 0.90% | [2] | ||||||||||||||||
| Expense Example, with Redemption, 1 Year | oef_ExpenseExampleYear01 | $ 92 | |||||||||||||||||
| Expense Example, with Redemption, 3 Years | oef_ExpenseExampleYear03 | 291 | |||||||||||||||||
| Expense Example, with Redemption, 5 Years | oef_ExpenseExampleYear05 | 507 | |||||||||||||||||
| Expense Example, with Redemption, 10 Years | oef_ExpenseExampleYear10 | 1,129 | |||||||||||||||||
| Expense Example, No Redemption, 1 Year | oef_ExpenseExampleNoRedemptionYear01 | 92 | |||||||||||||||||
| Expense Example, No Redemption, 3 Years | oef_ExpenseExampleNoRedemptionYear03 | 291 | |||||||||||||||||
| Expense Example, No Redemption, 5 Years | oef_ExpenseExampleNoRedemptionYear05 | 507 | |||||||||||||||||
| Expense Example, No Redemption, 10 Years | oef_ExpenseExampleNoRedemptionYear10 | $ 1,129 | |||||||||||||||||
| Average Annual Return, Label [Optional Text] | oef_AverageAnnualReturnLabel | Return Before Taxes | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 42.48% | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 6.64% | |||||||||||||||||
| Average Annual Return, Percent | oef_AvgAnnlRtrPct | 6.07% | |||||||||||||||||
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