| Label | Element | Value | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Virtus KAR Emerging Markets Small-Cap Fund | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk/Return [Heading] | rr_RiskReturnHeading | Virtus KAR Emerging Markets Small-Cap Fund | |||||||||||||
| Objective [Heading] | rr_ObjectiveHeading | Investment Objective | |||||||||||||
| Objective, Primary [Text Block] | rr_ObjectivePrimaryTextBlock | The fund has an investment objective of 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 108 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.” |
|||||||||||||
| 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 24% of the average value of its portfolio. |
|||||||||||||
| Portfolio Turnover, Rate | rr_PortfolioTurnoverRate | 24.00% | |||||||||||||
| 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 | The fund pursues capital appreciation in emerging markets small-cap equities. The fund invests in a select group of small-cap companies believed by the subadviser to be undervalued relative to their future market growth potential. The investment strategy emphasizes companies that the subadviser believes to have a sustainable competitive advantage, strong management and low financial risk and to be able to grow over market cycles. Under normal circumstances, the fund invests at least 80% of its assets in equity or equity-linked securities of small capitalization companies located in emerging markets countries. The fund’s subadviser considers small-capitalization companies to be those companies that, at the time of initial purchase, have market capitalizations of less than $8 billion. Emerging markets countries generally include every nation in the world except the U.S., Canada, Japan, Australia, New Zealand and most nations located in Western Europe. The fund intends to diversify its investments among countries and normally to have represented in the portfolio business activities of a number of different countries. In determining “location” of an issuer, the subadviser primarily relies on the country where the issuer is incorporated. However, the country of risk is ultimately determined based on analysis of the following criteria: actual building address (domicile), primary exchange on which the security is traded and country in which the greatest percentage of company revenue or profit is generated. This evaluation is conducted so as to determine that the issuer’s assets are exposed to the economic fortunes and risks of the designated country. Equity securities in which the fund invests include common stocks, preferred stocks and American Depositary Receipts (ADRs). The subadviser does not use allocation models to restrict the fund’s investments to certain regions, countries or industries. Generally, the fund invests in approximately 30-60 securities at any given time. |
|||||||||||||
| Strategy Portfolio Concentration [Text] | rr_StrategyPortfolioConcentration | Under normal circumstances, the fund invests at least 80% of its assets in equity or equity-linked securities of small capitalization companies located in emerging markets countries. | |||||||||||||
| Risk [Heading] | rr_RiskHeading | Principal Risks | |||||||||||||
| Bar Chart and Performance Table [Heading] | rr_BarChartAndPerformanceTableHeading | Performance Information | |||||||||||||
| Performance Narrative [Text Block] | rr_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 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 bar chart and table below provide some indication of the potential risks of investing in the fund. | |||||||||||||
| Performance Additional Market Index [Text] | rr_PerformanceAdditionalMarketIndex | The MSCI Emerging Markets Index (net) is a free float-adjusted market capitalization-weighted index designed to measure equity market performance in the global emerging markets. 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] | 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 | |||||||||||||
| 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 |
|
|||||||||||||
| Performance Table Heading | rr_PerformanceTableHeading | Average Annual Total Returns (for the periods ended 12/31/24) | |||||||||||||
| 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. | |||||||||||||
| 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 Closing [Text Block] | rr_PerformanceTableClosingTextBlock | The MSCI Emerging Markets Index (net) is a free float-adjusted market capitalization-weighted index designed to measure equity market performance in the global emerging markets. The index is calculated on a total return basis with net dividends reinvested. The index is unmanaged and not available for direct investment. The MSCI Emerging Markets Small Cap Index (net) is a free float-adjusted market capitalization-weighted index designed to measure small cap equity market performance in the global emerging markets. 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 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. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap 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 KAR Emerging Markets Small-Cap Fund | Equity Securities Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_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. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap 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 KAR Emerging Markets Small-Cap 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 KAR Emerging Markets Small-Cap 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 KAR Emerging Markets Small-Cap Fund | Sector Focused Investing Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Sector Focused Investing Risk: Events negatively affecting a particular market sector in which the fund focuses its investments may cause the value of the fund’s shares to decrease, perhaps significantly. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Focused Investment Risk (Industrial-Related Risk) | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Focused Investment Risk (Industrial-Related Risk): To the extent the fund focuses its investments in a limited number of issuers, sectors, industries or geographic regions, it may be subject to increased risk and volatility. Industrial companies are affected by supply and demand both for their specific product or service and for industrial sector products in general. Government regulation, world events, exchange rates and economic conditions, technological developments and liabilities for environmental damage and general civil liabilities will likewise affect the performance of these companies. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap 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), acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events 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 KAR Emerging Markets Small-Cap Fund | Depositary Receipts Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_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. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Developing Market Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Developing Market Risk: Developing markets securities may be more volatile, or more greatly affected by negative conditions, than those of their counterparts in more established foreign markets. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Investing in Brazil Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Investing in Brazil Risk: Investment in Brazilian issuers involves risks that are specific to Brazil, including legal, regulatory, political, currency and economic risks. The Brazilian economy has historically been exposed to high rates of inflation and a high level of debt, each of which may reduce and/or prevent economic growth. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Investing in China Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_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. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Investing in India Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Investing in India Risk: Investments in Indian issuers involve risks that are specific to India, including legal, regulatory, political and economic risks. Political and legal uncertainty, greater government control over the economy, currency fluctuations or blockage, and the risk of nationalization or expropriation of assets may result in higher potential for losses. The securities markets in India are relatively underdeveloped and may subject the fund to higher transaction costs or greater uncertainty than investments in more developed securities markets. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Investing in Indonesia Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Investing in Indonesia Risk: Investments in Indonesian issuers involve risks that are specific to Indonesia, including legal, regulatory, political, economic, currency, security,and natural disaster risks. Political and legal uncertainty, greater government control over the economy, currency fluctuations or blockage, and the risk of disruption to business operations due to national security events and/or natural disasters may result in higher potential for losses. The securities markets in Indonesia are relatively underdeveloped and may subject the fund to higher transaction costs or greater uncertainty than investments in more developed securities markets. In addition, the Indonesian economy is heavily dependent on trading relationships with certain key trading partners, including China, Japan, Singapore and the U.S. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Investing in Malaysia Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Investing in Malaysia Risk: Investments in Malaysian issuers involve risks that are specific to Malaysia, including legal, regulatory, political, currency and economic risks. Among other things, Malaysia’s economy is heavily dependent on trading relationships with certain key trading partners, including the U.S., China, Japan and Singapore. Reduction in spending on Malaysian products and services, or economic or other changes in the U.S. or any of the Asian economies, trade regulations or currency exchange rates may have an adverse impact on the Malaysian economy. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Investing in Poland Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Investing in Poland Risk: Investments in Polish issuers involve risks that are specific to Poland, including legal, regulatory, political, currency and economic risks. Among other things, Poland’s economy is still relatively undeveloped and is heavily dependent on relationships with certain key trading partners, including Germany and other European Union (“EU”) countries. As a result, Poland’s continued growth is dependent on the growth of these economies. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Investing in South Korea Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Investing in South Korea Risk: Investing in South Korean securities has special risks, including political, economic and social instability, and the potential for increasing militarization in North Korea. South Korea’s financial sector has shown certain signs of systemic weakness and illiquidity, which, if exacerbated, could prove to be a material risk for any investments in South Korea. South Korea is dependent on foreign sources for its energy needs. A significant increase in energy prices could have an adverse impact on South Korea’s economy. The South Korean government has historically exercised and continues to exercise substantial influence over many aspects of the private sector. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Investing in Taiwan Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Investing in Taiwan Risk: Taiwan’s geographic proximity and history of political contention with China have resulted in ongoing tensions between the two countries. These tensions may materially affect the Taiwanese economy and its securities market. Taiwan’s economy is export-oriented, so it depends on an open world trade regime and remains vulnerable to fluctuations in the world economy. Rising labor costs and increasing environmental consciousness have led some labor-intensive industries to relocate to countries with cheaper work forces, and continued labor outsourcing may adversely affect the Taiwanese economy. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Currency Rate Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_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. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Equity-Linked Instruments Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Equity-Linked Instruments Risk: The performance of equity-linked instruments is subject to similar risks to those of the referenced equity security, in addition to the risk that the equity-linked instruments fail to replicate the performance of the referenced equity security. Equity-linked instruments also expose the fund to counterparty risk, which could result in a loss of all or part of the fund’s investment. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Frontier Market Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Frontier Market Risk: Frontier market countries generally have smaller economies and less developed capital markets or legal, regulatory and political systems than traditional emerging market countries. As a result, the risks of investing in emerging market countries are magnified in frontier market countries. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Geographic Investment Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Geographic Investment Risk: To the extent the fund invests a significant portion of its assets in the securities of companies of a single country or region, it is more likely to be impacted by events or conditions affecting that country or region. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Geopolitical Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Geopolitical Risk: Some countries and regions in which the fund invests have experienced security concerns, war or threats of war and aggression, terrorism, economic uncertainty, natural and environmental disasters and/or systemic market dislocations that have led, and in the future may lead, to increased short-term market volatility and may have adverse long-term effects on the U.S.and world economies and markets generally, each of which may negatively impact the fund’s investments. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Limited Number of Investments Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Limited Number of Investments Risk: Because the fund may have a limited number of securities, it may be more susceptible to factors adversely affecting its securities than a fund with a greater number of securities. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Liquidity Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Liquidity Risk: Certain instruments may be difficult or impossible to sell at a time and price beneficial to the fund. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Preferred Stocks Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Preferred Stocks Risk: Preferred stocks may decline in price, fail to pay dividends when expected, or be illiquid. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap 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 KAR Emerging Markets Small-Cap Fund | Small Market Capitalization Companies Risk | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Risk [Text Block] | rr_RiskTextBlock | > Small Market Capitalization Companies Risk: The fund’s investments in small market capitalization companies may be less liquid and more vulnerable to adverse business or economic developments, which may increase the volatility and risk of loss to the fund, as compared with investments in larger, more established companies. |
|||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | MSCI Emerging Markets Index (net) | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Index No Deduction for Fees, Expenses, Taxes [Text] | rr_IndexNoDeductionForFeesExpensesTaxes | (reflects no deduction for fees or expenses) | |||||||||||||
| Label | rr_AverageAnnualReturnLabel | MSCI Emerging Markets Index (net) | |||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 7.50% | |||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 1.70% | |||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 3.64% | |||||||||||||
| Since Inception | rr_AverageAnnualReturnSinceInception | 3.32% | |||||||||||||
| Inception Date | rr_AverageAnnualReturnInceptionDate | Aug. 01, 2019 | |||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | MSCI Emerging Markets Small Cap Index (net) | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Index No Deduction for Fees, Expenses, Taxes [Text] | rr_IndexNoDeductionForFeesExpensesTaxes | (reflects no deduction for fees or expenses) | |||||||||||||
| Label | rr_AverageAnnualReturnLabel | MSCI Emerging Markets Small Cap Index (net) | |||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 4.79% | |||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 8.56% | |||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 5.73% | |||||||||||||
| Since Inception | rr_AverageAnnualReturnSinceInception | 9.26% | |||||||||||||
| Inception Date | rr_AverageAnnualReturnInceptionDate | Aug. 01, 2019 | |||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Class A Shares | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Trading Symbol | dei_TradingSymbol | VAESX | |||||||||||||
| Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) | rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice | 5.50% | |||||||||||||
| Maximum Deferred Sales Charge (as a percentage of Offering Price) | rr_MaximumDeferredSalesChargeOverOfferingPrice | none | |||||||||||||
| Management Fees | rr_ManagementFeesOverAssets | 1.20% | |||||||||||||
| Distribution and Shareholder Servicing (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | 0.25% | |||||||||||||
| Other Expenses | rr_OtherExpensesOverAssets | 0.33% | |||||||||||||
| Total Annual Fund Operating Expenses | rr_ExpensesOverAssets | 1.78% | |||||||||||||
| Less: Fee Waiver and/or Expense Reimbursement | rr_FeeWaiverOrReimbursementOverAssets | (0.08%) | [1] | ||||||||||||
| Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement | rr_NetExpensesOverAssets | 1.70% | [1] | ||||||||||||
| 1 Year | rr_ExpenseExampleYear01 | $ 713 | |||||||||||||
| 3 Years | rr_ExpenseExampleYear03 | 1,072 | |||||||||||||
| 5 Years | rr_ExpenseExampleYear05 | 1,454 | |||||||||||||
| 10 Years | rr_ExpenseExampleYear10 | 2,523 | |||||||||||||
| 1 Year | rr_ExpenseExampleNoRedemptionYear01 | 713 | |||||||||||||
| 3 Years | rr_ExpenseExampleNoRedemptionYear03 | 1,072 | |||||||||||||
| 5 Years | rr_ExpenseExampleNoRedemptionYear05 | 1,454 | |||||||||||||
| 10 Years | rr_ExpenseExampleNoRedemptionYear10 | $ 2,523 | |||||||||||||
| Label | rr_AverageAnnualReturnLabel | Return Before Taxes | |||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | (2.31%) | |||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 4.37% | |||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 5.69% | |||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Class C Shares | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Trading Symbol | dei_TradingSymbol | VCESX | |||||||||||||
| 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 | 1.00% | [2] | ||||||||||||
| Management Fees | rr_ManagementFeesOverAssets | 1.20% | |||||||||||||
| Distribution and Shareholder Servicing (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | 1.00% | |||||||||||||
| Other Expenses | rr_OtherExpensesOverAssets | 0.27% | |||||||||||||
| Total Annual Fund Operating Expenses | rr_ExpensesOverAssets | 2.47% | |||||||||||||
| Less: Fee Waiver and/or Expense Reimbursement | rr_FeeWaiverOrReimbursementOverAssets | (0.02%) | [1] | ||||||||||||
| Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement | rr_NetExpensesOverAssets | 2.45% | [1] | ||||||||||||
| 1 Year | rr_ExpenseExampleYear01 | $ 348 | |||||||||||||
| 3 Years | rr_ExpenseExampleYear03 | 768 | |||||||||||||
| 5 Years | rr_ExpenseExampleYear05 | 1,314 | |||||||||||||
| 10 Years | rr_ExpenseExampleYear10 | 2,805 | |||||||||||||
| 1 Year | rr_ExpenseExampleNoRedemptionYear01 | 248 | |||||||||||||
| 3 Years | rr_ExpenseExampleNoRedemptionYear03 | 768 | |||||||||||||
| 5 Years | rr_ExpenseExampleNoRedemptionYear05 | 1,314 | |||||||||||||
| 10 Years | rr_ExpenseExampleNoRedemptionYear10 | $ 2,805 | |||||||||||||
| Label | rr_AverageAnnualReturnLabel | Return Before Taxes | |||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 2.66% | |||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 4.79% | |||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 5.51% | |||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Class I Shares | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Trading Symbol | dei_TradingSymbol | VIESX | |||||||||||||
| 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 | 1.20% | |||||||||||||
| Distribution and Shareholder Servicing (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | none | |||||||||||||
| Other Expenses | rr_OtherExpensesOverAssets | 0.31% | |||||||||||||
| Total Annual Fund Operating Expenses | rr_ExpensesOverAssets | 1.51% | |||||||||||||
| Less: Fee Waiver and/or Expense Reimbursement | rr_FeeWaiverOrReimbursementOverAssets | (0.06%) | [1] | ||||||||||||
| Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement | rr_NetExpensesOverAssets | 1.45% | [1] | ||||||||||||
| 1 Year | rr_ExpenseExampleYear01 | $ 148 | |||||||||||||
| 3 Years | rr_ExpenseExampleYear03 | 471 | |||||||||||||
| 5 Years | rr_ExpenseExampleYear05 | 818 | |||||||||||||
| 10 Years | rr_ExpenseExampleYear10 | 1,796 | |||||||||||||
| 1 Year | rr_ExpenseExampleNoRedemptionYear01 | 148 | |||||||||||||
| 3 Years | rr_ExpenseExampleNoRedemptionYear03 | 471 | |||||||||||||
| 5 Years | rr_ExpenseExampleNoRedemptionYear05 | 818 | |||||||||||||
| 10 Years | rr_ExpenseExampleNoRedemptionYear10 | $ 1,796 | |||||||||||||
| Annual Return 2015 | rr_AnnualReturn2015 | (16.51%) | |||||||||||||
| Annual Return 2016 | rr_AnnualReturn2016 | 16.14% | |||||||||||||
| Annual Return 2017 | rr_AnnualReturn2017 | 31.01% | |||||||||||||
| Annual Return 2018 | rr_AnnualReturn2018 | (5.40%) | |||||||||||||
| Annual Return 2019 | rr_AnnualReturn2019 | 18.28% | |||||||||||||
| Annual Return 2020 | rr_AnnualReturn2020 | 38.88% | |||||||||||||
| Annual Return 2021 | rr_AnnualReturn2021 | (1.65%) | |||||||||||||
| Annual Return 2022 | rr_AnnualReturn2022 | (22.92%) | |||||||||||||
| Annual Return 2023 | rr_AnnualReturn2023 | 21.83% | |||||||||||||
| Annual Return 2024 | rr_AnnualReturn2024 | 3.68% | |||||||||||||
| 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 | 34.75% | |||||||||||||
| Label | rr_LowestQuarterlyReturnLabel | Worst Quarter | |||||||||||||
| Lowest Quarterly Return, Date | rr_BarChartLowestQuarterlyReturnDate | Mar. 31, 2020 | |||||||||||||
| Lowest Quarterly Return | rr_BarChartLowestQuarterlyReturn | (20.54%) | |||||||||||||
| Label | rr_AverageAnnualReturnLabel | Return Before Taxes | |||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 3.68% | |||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 5.87% | |||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 6.58% | |||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Class I Shares | After Taxes on Distributions | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Label | rr_AverageAnnualReturnLabel | Return After Taxes on Distributions | |||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 3.99% | |||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 5.43% | |||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 6.39% | |||||||||||||
| Virtus KAR Emerging Markets Small-Cap 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 | 3.97% | |||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 4.81% | |||||||||||||
| 10 Years | rr_AverageAnnualReturnYear10 | 5.59% | |||||||||||||
| Virtus KAR Emerging Markets Small-Cap Fund | Class R6 Shares | |||||||||||||||
| Risk/Return: | rr_RiskReturnAbstract | ||||||||||||||
| Trading Symbol | dei_TradingSymbol | VRESX | |||||||||||||
| 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 | 1.20% | |||||||||||||
| Distribution and Shareholder Servicing (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | none | |||||||||||||
| Other Expenses | rr_OtherExpensesOverAssets | 0.21% | |||||||||||||
| Total Annual Fund Operating Expenses | rr_ExpensesOverAssets | 1.41% | |||||||||||||
| Less: Fee Waiver and/or Expense Reimbursement | rr_FeeWaiverOrReimbursementOverAssets | (0.11%) | [1] | ||||||||||||
| Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement | rr_NetExpensesOverAssets | 1.30% | [1] | ||||||||||||
| 1 Year | rr_ExpenseExampleYear01 | $ 132 | |||||||||||||
| 3 Years | rr_ExpenseExampleYear03 | 435 | |||||||||||||
| 5 Years | rr_ExpenseExampleYear05 | 761 | |||||||||||||
| 10 Years | rr_ExpenseExampleYear10 | 1,681 | |||||||||||||
| 1 Year | rr_ExpenseExampleNoRedemptionYear01 | 132 | |||||||||||||
| 3 Years | rr_ExpenseExampleNoRedemptionYear03 | 435 | |||||||||||||
| 5 Years | rr_ExpenseExampleNoRedemptionYear05 | 761 | |||||||||||||
| 10 Years | rr_ExpenseExampleNoRedemptionYear10 | $ 1,681 | |||||||||||||
| Label | rr_AverageAnnualReturnLabel | Return Before Taxes | |||||||||||||
| 1 Year | rr_AverageAnnualReturnYear01 | 3.83% | |||||||||||||
| 5 Years | rr_AverageAnnualReturnYear05 | 5.99% | |||||||||||||
| Since Inception | rr_AverageAnnualReturnSinceInception | 6.46% | |||||||||||||
| Inception Date | rr_AverageAnnualReturnInceptionDate | Aug. 01, 2019 | |||||||||||||
| |||||||||||||||