v3.25.4
Fees and Expenses
Sep. 30, 2025
USD ($)
Virtus KAR Capital Growth Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

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 77 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.”
Expense Breakpoint Discounts [Text] 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] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Virtus KAR Capital Growth Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 1.00% [1] 0.00% 0.00%
[1]

The deferred sales charge is imposed on Class C Shares redeemed during the first year only.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Virtus KAR Capital Growth Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Management Fees (as a percentage of Assets) 0.70% 0.70% 0.70% 0.70%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.25% 0.31% 0.28% 0.20%
Expenses (as a percentage of Assets) 1.20% 2.01% 0.98% 0.90%
Fee Waiver or Reimbursement [1] 0.00% 0.00% 0.00% (0.17%)
Net Expenses (as a percentage of Assets) [1] 1.20% 2.01% 0.98% 0.73%
[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 0.73% for Class R6 Shares through January 31, 2027. Prior to January 31, 2027, 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.
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

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 $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods or continued to hold them. The example also assumes that your investment has a 5% return each year, that the fund’s operating expenses remain the same and that the expense reimbursement agreement remains in place for the contractual period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Virtus KAR Capital Growth Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, with Redemption, 1 Year $ 666 $ 304 $ 100 $ 75
Expense Example, with Redemption, 3 Years 910 630 312 270
Expense Example, with Redemption, 5 Years 1,173 1,083 542 482
Expense Example, with Redemption, 10 Years $ 1,925 $ 2,338 $ 1,201 $ 1,092
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Virtus KAR Capital Growth Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, No Redemption, 1 Year $ 666 $ 204 $ 100 $ 75
Expense Example, No Redemption, 3 Years 910 630 312 270
Expense Example, No Redemption, 5 Years 1,173 1,083 542 482
Expense Example, No Redemption, 10 Years $ 1,925 $ 2,338 $ 1,201 $ 1,092
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

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 12% of the average value of its portfolio.

Portfolio Turnover, Rate 12.00%
Virtus KAR Equity Income Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

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 77 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.”
Expense Breakpoint Discounts [Text] 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] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Virtus KAR Equity Income Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 1.00% [1] 0.00% 0.00%
[1]

The deferred sales charge is imposed on Class C Shares redeemed during the first year only.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Virtus KAR Equity Income Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Management Fees (as a percentage of Assets) 0.75% 0.75% 0.75% 0.75%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): [1],[2] 0.37% 0.44% 0.36% 0.29%
Expenses (as a percentage of Assets) 1.37% 2.19% 1.11% 1.04%
Fee Waiver or Reimbursement [3] (0.23%) (0.30%) (0.22%) (0.26%)
Net Expenses (as a percentage of Assets) [3] 1.14% 1.89% 0.89% 0.78%
[1]

Estimated for current fiscal year, as annualized.
[2]

Not included in the table are extraordinary expenses. If such amounts were reflected in this table, the Other Expenses would have been 0.43% for Class A Shares, 0.50% for Class C Shares, 0.42% for Class I Shares and 0.43% for Class R6 Shares.
[3]

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 1.14% for Class A Shares, 1.89% for Class C Shares, 0.89% for Class I Shares and 0.78% for Class R6 Shares through September 12, 2027. Prior to September 12, 2027, 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.
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

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 $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods or continued to hold them. The example also assumes that your investment has a 5% return each year, that the fund’s operating expenses remain the same and that the expense reimbursement agreement remains in place for the contractual period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Virtus KAR Equity Income Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, with Redemption, 1 Year $ 660 $ 292 $ 91 $ 80
Expense Example, with Redemption, 3 Years 926 638 317 289
Expense Example, with Redemption, 5 Years 1,226 1,130 577 533
Expense Example, with Redemption, 10 Years $ 2,076 $ 2,485 $ 1,320 $ 1,233
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Virtus KAR Equity Income Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, No Redemption, 1 Year $ 660 $ 192 $ 91 $ 80
Expense Example, No Redemption, 3 Years 926 638 317 289
Expense Example, No Redemption, 5 Years 1,226 1,130 577 533
Expense Example, No Redemption, 10 Years $ 2,076 $ 2,485 $ 1,320 $ 1,233
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

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 47% of the average value of its portfolio.

Portfolio Turnover, Rate 47.00%
Virtus KAR Mid-Cap Core Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

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 77 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.”
Expense Breakpoint Discounts [Text] 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] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Virtus KAR Mid-Cap Core Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 1.00% [1] 0.00% 0.00%
[1]

The deferred sales charge is imposed on Class C Shares redeemed during the first year only.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Virtus KAR Mid-Cap Core Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Management Fees (as a percentage of Assets) 0.75% 0.75% 0.75% 0.75%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.27% 0.28% 0.27% 0.18%
Expenses (as a percentage of Assets) 1.27% 2.03% 1.02% 0.93%
Fee Waiver or Reimbursement [1] (0.07%) (0.08%) (0.07%) (0.06%)
Net Expenses (as a percentage of Assets) [1] 1.20% 1.95% 0.95% 0.87%
[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 1.20% for Class A Shares, 1.95% for Class C Shares, 0.95% for Class I Shares and 0.87% for Class R6 Shares through January 31, 2027. Prior to January 31, 2027, 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.
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

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 $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods or continued to hold them. The example also assumes that your investment has a 5% return each year, that the fund’s operating expenses remain the same and that the expense reimbursement agreement remains in place for the contractual period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Virtus KAR Mid-Cap Core Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, with Redemption, 1 Year $ 666 $ 298 $ 97 $ 89
Expense Example, with Redemption, 3 Years 924 629 318 290
Expense Example, with Redemption, 5 Years 1,202 1,086 556 509
Expense Example, with Redemption, 10 Years $ 1,994 $ 2,352 $ 1,241 $ 1,138
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Virtus KAR Mid-Cap Core Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, No Redemption, 1 Year $ 666 $ 198 $ 97 $ 89
Expense Example, No Redemption, 3 Years 924 629 318 290
Expense Example, No Redemption, 5 Years 1,202 1,086 556 509
Expense Example, No Redemption, 10 Years $ 1,994 $ 2,352 $ 1,241 $ 1,138
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

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 16% of the average value of its portfolio.

Portfolio Turnover, Rate 16.00%
Virtus KAR Mid-Cap Growth Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

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 77 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.”
Expense Breakpoint Discounts [Text] 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] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Virtus KAR Mid-Cap Growth Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 1.00% [1] 0.00% 0.00%
[1]

The deferred sales charge is imposed on Class C Shares redeemed during the first year only.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Virtus KAR Mid-Cap Growth Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Management Fees (as a percentage of Assets) 0.74% 0.74% 0.74% 0.74%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.27% 0.30% 0.29% 0.19%
Expenses (as a percentage of Assets) 1.26% 2.04% 1.03% 0.93%
Fee Waiver or Reimbursement [1] 0.00% 0.00% 0.00% (0.10%)
Net Expenses (as a percentage of Assets) [1] 1.26% 2.04% 1.03% 0.83%
[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 0.83% for Class R6 Shares through January 31, 2027. Prior to January 31, 2027, 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.
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

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 $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods or continued to hold them. The example also assumes that your investment has a 5% return each year, that the fund’s operating expenses remain the same and that the expense reimbursement agreement remains in place for the contractual period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Virtus KAR Mid-Cap Growth Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, with Redemption, 1 Year $ 671 $ 307 $ 105 $ 85
Expense Example, with Redemption, 3 Years 928 640 328 286
Expense Example, with Redemption, 5 Years 1,204 1,098 569 505
Expense Example, with Redemption, 10 Years $ 1,989 $ 2,369 $ 1,259 $ 1,134
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Virtus KAR Mid-Cap Growth Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, No Redemption, 1 Year $ 671 $ 207 $ 105 $ 85
Expense Example, No Redemption, 3 Years 928 640 328 286
Expense Example, No Redemption, 5 Years 1,204 1,098 569 505
Expense Example, No Redemption, 10 Years $ 1,989 $ 2,369 $ 1,259 $ 1,134
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

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 27% of the average value of its portfolio.

Portfolio Turnover, Rate 27.00%
Virtus KAR Small-Cap Core Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

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 77 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.”
Expense Breakpoint Discounts [Text] 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] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Virtus KAR Small-Cap Core Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 1.00% [1] 0.00% 0.00%
[1]

The deferred sales charge is imposed on Class C Shares redeemed during the first year only.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Virtus KAR Small-Cap Core Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Management Fees (as a percentage of Assets) 0.75% 0.75% 0.75% 0.75%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.29% 0.24% 0.25% 0.17%
Expenses (as a percentage of Assets) 1.29% 1.99% 1.00% 0.92%
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

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 $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods or continued to hold them. The example also assumes that your investment has a 5% return each year and that the fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Virtus KAR Small-Cap Core Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, with Redemption, 1 Year $ 674 $ 302 $ 102 $ 94
Expense Example, with Redemption, 3 Years 936 624 318 293
Expense Example, with Redemption, 5 Years 1,219 1,073 552 509
Expense Example, with Redemption, 10 Years $ 2,021 $ 2,317 $ 1,225 $ 1,131
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Virtus KAR Small-Cap Core Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, No Redemption, 1 Year $ 674 $ 202 $ 102 $ 94
Expense Example, No Redemption, 3 Years 936 624 318 293
Expense Example, No Redemption, 5 Years 1,219 1,073 552 509
Expense Example, No Redemption, 10 Years $ 2,021 $ 2,317 $ 1,225 $ 1,131
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

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 13% of the average value of its portfolio.

Portfolio Turnover, Rate 13.00%
Virtus KAR Small-Cap Growth Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

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 77 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.”
Expense Breakpoint Discounts [Text] 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] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Virtus KAR Small-Cap Growth Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 1.00% [1] 0.00% 0.00%
[1]

The deferred sales charge is imposed on Class C Shares redeemed during the first year only.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Virtus KAR Small-Cap Growth Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Management Fees (as a percentage of Assets) 0.83% 0.83% 0.83% 0.83%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.31% 0.28% 0.29% 0.18%
Expenses (as a percentage of Assets) 1.39% 2.11% 1.12% 1.01%
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

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 $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods or continued to hold them. The example also assumes that your investment has a 5% return each year and that the fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Virtus KAR Small-Cap Growth Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, with Redemption, 1 Year $ 684 $ 314 $ 114 $ 103
Expense Example, with Redemption, 3 Years 966 661 356 322
Expense Example, with Redemption, 5 Years 1,269 1,134 617 558
Expense Example, with Redemption, 10 Years $ 2,127 $ 2,441 $ 1,363 $ 1,236
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Virtus KAR Small-Cap Growth Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, No Redemption, 1 Year $ 684 $ 214 $ 114 $ 103
Expense Example, No Redemption, 3 Years 966 661 356 322
Expense Example, No Redemption, 5 Years 1,269 1,134 617 558
Expense Example, No Redemption, 10 Years $ 2,127 $ 2,441 $ 1,363 $ 1,236
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

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 18% of the average value of its portfolio.

Portfolio Turnover, Rate 18.00%
Virtus KAR Small-Cap Value Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

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 77 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.”
Expense Breakpoint Discounts [Text] 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] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Virtus KAR Small-Cap Value Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 1.00% [1] 0.00% 0.00%
[1]

The deferred sales charge is imposed on Class C Shares redeemed during the first year only.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Virtus KAR Small-Cap Value Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Management Fees (as a percentage of Assets) 0.70% 0.70% 0.70% 0.70%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.27% 0.29% 0.29% 0.19%
Expenses (as a percentage of Assets) 1.22% 1.99% 0.99% 0.89%
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

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 $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods or continued to hold them. The example also assumes that your investment has a 5% return each year and that the fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Virtus KAR Small-Cap Value Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, with Redemption, 1 Year $ 667 $ 302 $ 101 $ 91
Expense Example, with Redemption, 3 Years 916 624 315 284
Expense Example, with Redemption, 5 Years 1,183 1,073 547 493
Expense Example, with Redemption, 10 Years $ 1,946 $ 2,317 $ 1,213 $ 1,096
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Virtus KAR Small-Cap Value Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, No Redemption, 1 Year $ 667 $ 202 $ 101 $ 91
Expense Example, No Redemption, 3 Years 916 624 315 284
Expense Example, No Redemption, 5 Years 1,183 1,073 547 493
Expense Example, No Redemption, 10 Years $ 1,946 $ 2,317 $ 1,213 $ 1,096
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

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 12% of the average value of its portfolio.

Portfolio Turnover, Rate 12.00%
Virtus KAR Small-Mid Cap Core Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

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 77 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.”
Expense Breakpoint Discounts [Text] 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] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Virtus KAR Small-Mid Cap Core Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 1.00% [1] 0.00% 0.00%
[1]

The deferred sales charge is imposed on Class C Shares redeemed during the first year only.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Virtus KAR Small-Mid Cap Core Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Management Fees (as a percentage of Assets) 0.72% 0.72% 0.72% 0.72%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.27% 0.28% 0.26% 0.17%
Expenses (as a percentage of Assets) 1.24% 2.00% 0.98% 0.89%
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

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 $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods or continued to hold them. The example also assumes that your investment has a 5% return each year and that the fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Virtus KAR Small-Mid Cap Core Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, with Redemption, 1 Year $ 669 $ 303 $ 100 $ 91
Expense Example, with Redemption, 3 Years 922 627 312 284
Expense Example, with Redemption, 5 Years 1,194 1,078 542 493
Expense Example, with Redemption, 10 Years $ 1,967 $ 2,327 $ 1,201 $ 1,096
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Virtus KAR Small-Mid Cap Core Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, No Redemption, 1 Year $ 669 $ 203 $ 100 $ 91
Expense Example, No Redemption, 3 Years 922 627 312 284
Expense Example, No Redemption, 5 Years 1,194 1,078 542 493
Expense Example, No Redemption, 10 Years $ 1,967 $ 2,327 $ 1,201 $ 1,096
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

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 15% of the average value of its portfolio.

Portfolio Turnover, Rate 15.00%
Virtus KAR Small-Mid Cap Growth Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

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 77 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.”
Expense Breakpoint Discounts [Text] 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] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Virtus KAR Small-Mid Cap Growth Fund
Class A Shares
Class I Shares
Class R6 Shares
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00%
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Virtus KAR Small-Mid Cap Growth Fund
Class A Shares
Class I Shares
Class R6 Shares
Management Fees (as a percentage of Assets) 0.75% 0.75% 0.75%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 1.26% 1.30% 1.17%
Expenses (as a percentage of Assets) 2.26% 2.05% 1.92%
Fee Waiver or Reimbursement [1] (1.06%) (1.10%) (1.03%)
Net Expenses (as a percentage of Assets) [1] 1.20% 0.95% 0.89%
[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 1.20% for Class A Shares, 0.95% for Class I Shares and 0.89% for Class R6 Shares through January 31, 2027. Prior to January 31, 2027, 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.
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

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 $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods or continued to hold them. The example also assumes that your investment has a 5% return each year, that the fund’s operating expenses remain the same and that the expense reimbursement agreement remains in place for the contractual period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Virtus KAR Small-Mid Cap Growth Fund - USD ($)
Class A Shares
Class I Shares
Class R6 Shares
Expense Example, with Redemption, 1 Year $ 666 $ 97 $ 91
Expense Example, with Redemption, 3 Years 1,121 536 503
Expense Example, with Redemption, 5 Years 1,602 1,002 941
Expense Example, with Redemption, 10 Years $ 2,924 $ 2,291 $ 2,160
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Virtus KAR Small-Mid Cap Growth Fund - USD ($)
Class A Shares
Class I Shares
Class R6 Shares
Expense Example, No Redemption, 1 Year $ 666 $ 97 $ 91
Expense Example, No Redemption, 3 Years 1,121 536 503
Expense Example, No Redemption, 5 Years 1,602 1,002 941
Expense Example, No Redemption, 10 Years $ 2,924 $ 2,291 $ 2,160
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

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 24.00%
Virtus KAR Small-Mid Cap Value Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

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 77 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.”
Expense Breakpoint Discounts [Text] 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] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Virtus KAR Small-Mid Cap Value Fund
Class A Shares
Class I Shares
Class R6 Shares
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 0.00% 0.00%
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Virtus KAR Small-Mid Cap Value Fund
Class A Shares
Class I Shares
Class R6 Shares
Management Fees (as a percentage of Assets) 0.65% 0.65% 0.65%
Distribution and Service (12b-1) Fees 0.25% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 1.66% 1.78% 1.64%
Expenses (as a percentage of Assets) 2.56% 2.43% 2.29%
Fee Waiver or Reimbursement [1] (1.39%) (1.51%) (1.47%)
Net Expenses (as a percentage of Assets) [1] 1.17% 0.92% 0.82%
[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 1.17% for Class A Shares, 0.92% for Class I Shares and 0.82% for Class R6 Shares through January 31, 2027. Prior to January 31, 2027, 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.
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

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 $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods or continued to hold them. The example also assumes that your investment has a 5% return each year, that the fund’s operating expenses remain the same and that the expense reimbursement agreement remains in place for the contractual period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Virtus KAR Small-Mid Cap Value Fund - USD ($)
Class A Shares
Class I Shares
Class R6 Shares
Expense Example, with Redemption, 1 Year $ 663 $ 94 $ 84
Expense Example, with Redemption, 3 Years 1,177 613 574
Expense Example, with Redemption, 5 Years 1,718 1,159 1,091
Expense Example, with Redemption, 10 Years $ 3,187 $ 2,651 $ 2,511
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Virtus KAR Small-Mid Cap Value Fund - USD ($)
Class A Shares
Class I Shares
Class R6 Shares
Expense Example, No Redemption, 1 Year $ 663 $ 94 $ 84
Expense Example, No Redemption, 3 Years 1,177 613 574
Expense Example, No Redemption, 5 Years 1,718 1,159 1,091
Expense Example, No Redemption, 10 Years $ 3,187 $ 2,651 $ 2,511
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

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 20% of the average value of its portfolio.

Portfolio Turnover, Rate 20.00%
Virtus SGA Global Growth Fund  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

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 77 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.”
Expense Breakpoint Discounts [Text] 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] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - Virtus SGA Global Growth Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 1.00% [1] 0.00% 0.00%
[1]

The deferred sales charge is imposed on Class C Shares redeemed during the first year only.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - Virtus SGA Global Growth Fund
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Management Fees (as a percentage of Assets) 0.80% 0.80% 0.80% 0.80%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.31% 0.32% 0.33% 0.23%
Expenses (as a percentage of Assets) 1.36% 2.12% 1.13% 1.03%
Fee Waiver or Reimbursement [1] (0.11%) (0.12%) (0.13%) (0.13%)
Net Expenses (as a percentage of Assets) [1] 1.25% 2.00% 1.00% 0.90%
[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 1.25% for Class A Shares, 2.00% for Class C Shares, 1.00% for Class I Shares and 0.90% for Class R6 Shares through January 31, 2027. Prior to January 31, 2027, 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.
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

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 $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods or continued to hold them. The example also assumes that your investment has a 5% return each year, that the fund’s operating expenses remain the same and that the expense reimbursement agreement remains in place for the contractual period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - Virtus SGA Global Growth Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, with Redemption, 1 Year $ 670 $ 303 $ 102 $ 92
Expense Example, with Redemption, 3 Years 947 652 346 315
Expense Example, with Redemption, 5 Years 1,244 1,128 610 556
Expense Example, with Redemption, 10 Years $ 2,086 $ 2,442 $ 1,363 $ 1,248
Expense Example, No Redemption [Table]
Expense Example, No Redemption - Virtus SGA Global Growth Fund - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, No Redemption, 1 Year $ 670 $ 203 $ 102 $ 92
Expense Example, No Redemption, 3 Years 947 652 346 315
Expense Example, No Redemption, 5 Years 1,244 1,128 610 556
Expense Example, No Redemption, 10 Years $ 2,086 $ 2,442 $ 1,363 $ 1,248
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

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 37% of the average value of its portfolio.

Portfolio Turnover, Rate 37.00%
VIRTUS TACTICAL ALLOCATION FUND  
Prospectus [Line Items]  
Expense Heading [Optional Text] Fees and Expenses
Expense Narrative [Text Block]

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 77 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.”
Expense Breakpoint Discounts [Text] 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] $ 50,000
Shareholder Fees Caption [Optional Text] Shareholder Fees (fees paid directly from your investment)
Shareholder Fees [Table]
Shareholder Fees - VIRTUS TACTICAL ALLOCATION FUND
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) 5.50% 0.00% 0.00% 0.00%
Maximum Deferred Sales Charge (as a percentage of Offering Price) 0.00% 1.00% [1] 0.00% 0.00%
[1]

The deferred sales charge is imposed on Class C Shares redeemed during the first year only.
Operating Expenses Caption [Optional Text] Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses [Table]
Annual Fund Operating Expenses - VIRTUS TACTICAL ALLOCATION FUND
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Management Fees (as a percentage of Assets) 0.55% 0.55% 0.55% 0.55%
Distribution and Service (12b-1) Fees 0.25% 1.00% 0.00% 0.00%
Other Expenses (as a percentage of Assets): 0.27% 0.33% 0.32% 0.21%
Expenses (as a percentage of Assets) 1.07% 1.88% 0.87% 0.76%
Fee Waiver or Reimbursement [1] (0.08%) (0.13%) (0.11%) (0.16%)
Net Expenses (as a percentage of Assets) [1] 0.99% 1.75% 0.76% 0.60%
[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 0.99% for Class A Shares, 1.75% for Class C Shares, 0.76% for Class I Shares and 0.60% for Class R6 Shares through January 31, 2027. Prior to January 31, 2027, 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.
Expense Example [Heading] Example
Expense Example Narrative [Text Block]

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 $10,000 in the fund for the time periods indicated and then redeem all of your shares at the end of those periods or continued to hold them. The example also assumes that your investment has a 5% return each year, that the fund’s operating expenses remain the same and that the expense reimbursement agreement remains in place for the contractual period. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example by, Year, Caption [Text] Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Expense Example, With Redemption [Table]
Expense Example - VIRTUS TACTICAL ALLOCATION FUND - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, with Redemption, 1 Year $ 645 $ 278 $ 78 $ 61
Expense Example, with Redemption, 3 Years 864 578 267 227
Expense Example, with Redemption, 5 Years 1,100 1,004 471 407
Expense Example, with Redemption, 10 Years $ 1,777 $ 2,190 $ 1,062 $ 927
Expense Example, No Redemption [Table]
Expense Example, No Redemption - VIRTUS TACTICAL ALLOCATION FUND - USD ($)
Class A Shares
Class C Shares
Class I Shares
Class R6 Shares
Expense Example, No Redemption, 1 Year $ 645 $ 178 $ 78 $ 61
Expense Example, No Redemption, 3 Years 864 578 267 227
Expense Example, No Redemption, 5 Years 1,100 1,004 471 407
Expense Example, No Redemption, 10 Years $ 1,777 $ 2,190 $ 1,062 $ 927
Portfolio Turnover [Heading] Portfolio Turnover
Portfolio Turnover [Text Block]

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 46% of the average value of its portfolio.

Portfolio Turnover, Rate 46.00%