v3.26.1
Shareholder Report
 6 Months Ended
Mar. 31, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name Virtus Equity Trust
Entity Central Index Key 0000034273
Entity Investment Company Type N-1A
Document Period End Date Mar. 31, 2026
C000199780 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Cap Growth Fund
Class Name Class R6
Trading Symbol VRSGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Cap Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Cap Growth Fund
Class R6 / VRSGX		 $48 1.06%
Expenses Paid, Amount $ 48
Expense Ratio, Percent 1.06%
Net Assets $ 822,512,000
Holdings Count | Holding 27
Investment Company Portfolio Turnover 26.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $822,512
Total number of portfolio holdings 27
Portfolio turnover rate as of the end of the reporting period 26%
Holdings [Text Block]
Asset Allocation(1)
Financials 30 %
Industrials 27
Consumer Discretionary 19
Health Care 11
Information Technology 8
Consumer Staples 5
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060265 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Cap Growth Fund
Class Name Class I
Trading Symbol PXSGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Cap Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Cap Growth Fund
Class I / PXSGX		 $54 1.19%
Expenses Paid, Amount $ 54
Expense Ratio, Percent 1.19%
Net Assets $ 822,512,000
Holdings Count | Holding 27
Investment Company Portfolio Turnover 26.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $822,512
Total number of portfolio holdings 27
Portfolio turnover rate as of the end of the reporting period 26%
Holdings [Text Block]
Asset Allocation(1)
Financials 30 %
Industrials 27
Consumer Discretionary 19
Health Care 11
Information Technology 8
Consumer Staples 5
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060264 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Cap Growth Fund
Class Name Class C
Trading Symbol PSGCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Cap Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Cap Growth Fund
Class C / PSGCX		 $100 2.20%
Expenses Paid, Amount $ 100
Expense Ratio, Percent 2.20%
Net Assets $ 822,512,000
Holdings Count | Holding 27
Investment Company Portfolio Turnover 26.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $822,512
Total number of portfolio holdings 27
Portfolio turnover rate as of the end of the reporting period 26%
Holdings [Text Block]
Asset Allocation(1)
Financials 30 %
Industrials 27
Consumer Discretionary 19
Health Care 11
Information Technology 8
Consumer Staples 5
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060263 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Cap Growth Fund
Class Name Class A
Trading Symbol PSGAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Cap Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Cap Growth Fund
Class A / PSGAX		 $67 1.46%
Expenses Paid, Amount $ 67
Expense Ratio, Percent 1.46%
Net Assets $ 822,512,000
Holdings Count | Holding 27
Investment Company Portfolio Turnover 26.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $822,512
Total number of portfolio holdings 27
Portfolio turnover rate as of the end of the reporting period 26%
Holdings [Text Block]
Asset Allocation(1)
Financials 30 %
Industrials 27
Consumer Discretionary 19
Health Care 11
Information Technology 8
Consumer Staples 5
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060269 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Cap Core Fund
Class Name Class A
Trading Symbol PKSAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Cap Core Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Cap Core Fund
Class A / PKSAX		 $65 1.30%
Expenses Paid, Amount $ 65
Expense Ratio, Percent 1.30%
Net Assets $ 1,798,559,000
Holdings Count | Holding 27
Investment Company Portfolio Turnover 7.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $1,798,559
Total number of portfolio holdings 27
Portfolio turnover rate as of the end of the reporting period 7%
Holdings [Text Block]
Asset Allocation(1)
Industrials 48 %
Financials 25
Consumer Discretionary 15
Materials 6
Health Care 3
Information Technology 1
Short-Term Investment 2
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060271 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Cap Core Fund
Class Name Class C
Trading Symbol PKSCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Cap Core Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Material Fund Change Notice [Text Block] This report describes changes to the Fund that occurred from the beginning of the reporting period through the date of issuance of this report.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Cap Core Fund
Class C / PKSCX		 $100 2.01%
Expenses Paid, Amount $ 100
Expense Ratio, Percent 2.01%
Net Assets $ 1,798,559,000
Holdings Count | Holding 27
Investment Company Portfolio Turnover 7.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $1,798,559
Total number of portfolio holdings 27
Portfolio turnover rate as of the end of the reporting period 7%
Holdings [Text Block]
Asset Allocation(1)
Industrials 48 %
Financials 25
Consumer Discretionary 15
Materials 6
Health Care 3
Information Technology 1
Short-Term Investment 2
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
Material Fund Change [Text Block]
Material Fund Changes
Effective January 21, 2026, Class C shares were closed to new purchases by new or existing shareholders, except by existing shareholders through qualifying transactions.
C000060272 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Cap Core Fund
Class Name Class I
Trading Symbol PKSFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Cap Core Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Cap Core Fund
Class I / PKSFX		 $51 1.02%
Expenses Paid, Amount $ 51
Expense Ratio, Percent 1.02%
Net Assets $ 1,798,559,000
Holdings Count | Holding 27
Investment Company Portfolio Turnover 7.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $1,798,559
Total number of portfolio holdings 27
Portfolio turnover rate as of the end of the reporting period 7%
Holdings [Text Block]
Asset Allocation(1)
Industrials 48 %
Financials 25
Consumer Discretionary 15
Materials 6
Health Care 3
Information Technology 1
Short-Term Investment 2
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000148845 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Cap Core Fund
Class Name Class R6
Trading Symbol VSCRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Cap Core Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Cap Core Fund
Class R6 / VSCRX		 $46 0.92%
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.92%
Net Assets $ 1,798,559,000
Holdings Count | Holding 27
Investment Company Portfolio Turnover 7.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $1,798,559
Total number of portfolio holdings 27
Portfolio turnover rate as of the end of the reporting period 7%
Holdings [Text Block]
Asset Allocation(1)
Industrials 48 %
Financials 25
Consumer Discretionary 15
Materials 6
Health Care 3
Information Technology 1
Short-Term Investment 2
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000199781 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Capital Growth Fund
Class Name Class R6
Trading Symbol VCGRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Capital Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Capital Growth Fund
Class R6 / VCGRX		 $34 0.73%
Expenses Paid, Amount $ 34
Expense Ratio, Percent 0.73%
Net Assets $ 567,191,000
Holdings Count | Holding 31
Investment Company Portfolio Turnover 19.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $567,191
Total number of portfolio holdings 31
Portfolio turnover rate as of the end of the reporting period 19%
Holdings [Text Block]
Asset Allocation(1)
Information Technology 40 %
Communication Services 15
Consumer Discretionary 13
Financials 11
Health Care 11
Industrials 10
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060276 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Capital Growth Fund
Class Name Class I
Trading Symbol PLXGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Capital Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Capital Growth Fund
Class I / PLXGX		 $46 0.99%
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.99%
Net Assets $ 567,191,000
Holdings Count | Holding 31
Investment Company Portfolio Turnover 19.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $567,191
Total number of portfolio holdings 31
Portfolio turnover rate as of the end of the reporting period 19%
Holdings [Text Block]
Asset Allocation(1)
Information Technology 40 %
Communication Services 15
Consumer Discretionary 13
Financials 11
Health Care 11
Industrials 10
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060275 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Capital Growth Fund
Class Name Class C
Trading Symbol SSTFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Capital Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Material Fund Change Notice [Text Block] This report describes changes to the Fund that occurred from the beginning of the reporting period through the date of issuance of this report.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Capital Growth Fund
Class C / SSTFX		 $94 2.03%
Expenses Paid, Amount $ 94
Expense Ratio, Percent 2.03%
Net Assets $ 567,191,000
Holdings Count | Holding 31
Investment Company Portfolio Turnover 19.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $567,191
Total number of portfolio holdings 31
Portfolio turnover rate as of the end of the reporting period 19%
Holdings [Text Block]
Asset Allocation(1)
Information Technology 40 %
Communication Services 15
Consumer Discretionary 13
Financials 11
Health Care 11
Industrials 10
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
Material Fund Change [Text Block]
Material Fund Changes
Effective January 21, 2026, Class C shares were closed to new purchases by new or existing shareholders, except by existing shareholders through qualifying transactions.
C000060273 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Capital Growth Fund
Class Name Class A
Trading Symbol PSTAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Capital Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Capital Growth Fund
Class A / PSTAX		 $56 1.21%
Expenses Paid, Amount $ 56
Expense Ratio, Percent 1.21%
Net Assets $ 567,191,000
Holdings Count | Holding 31
Investment Company Portfolio Turnover 19.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $567,191
Total number of portfolio holdings 31
Portfolio turnover rate as of the end of the reporting period 19%
Holdings [Text Block]
Asset Allocation(1)
Information Technology 40 %
Communication Services 15
Consumer Discretionary 13
Financials 11
Health Care 11
Industrials 10
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060285 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Equity Income Fund
Class Name Class A
Trading Symbol PDIAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Equity Income Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Material Fund Change Notice [Text Block] This report describes changes to the Fund that occurred from the beginning of the reporting period through the date of issuance of this report.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Equity Income Fund
Class A / PDIAX		 $59 1.17%
Expenses Paid, Amount $ 59
Expense Ratio, Percent 1.17%
Material Change Date Jan. 01, 2026
Net Assets $ 161,994,000
Holdings Count | Holding 39
Investment Company Portfolio Turnover 9.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $161,994
Total number of portfolio holdings 39
Portfolio turnover rate as of the end of the reporting period 9%
Holdings [Text Block]
Asset Allocation(1)
Industrials 17 %
Information Technology 16
Financials 16
Health Care 10
Consumer Staples 9
Utilities 9
Real Estate 6
Other (includes securities lending collateral) 17
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
Material Fund Change [Text Block]
Material Fund Changes
Effective January 1, 2026, a new expense limitation of 1.14% went into effect for Class A shares.
Material Fund Change Expenses [Text Block]
Effective January 1, 2026, a new expense limitation of 1.14% went into effect for Class A shares.
C000060287 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Equity Income Fund
Class Name Class C
Trading Symbol PGICX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Equity Income Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Material Fund Change Notice [Text Block] This report describes changes to the Fund that occurred from the beginning of the reporting period through the date of issuance of this report.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Equity Income Fund
Class C / PGICX		 $97 1.92%
Expenses Paid, Amount $ 97
Expense Ratio, Percent 1.92%
Material Change Date Jan. 01, 2026
Net Assets $ 161,994,000
Holdings Count | Holding 39
Investment Company Portfolio Turnover 9.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $161,994
Total number of portfolio holdings 39
Portfolio turnover rate as of the end of the reporting period 9%
Holdings [Text Block]
Asset Allocation(1)
Industrials 17 %
Information Technology 16
Financials 16
Health Care 10
Consumer Staples 9
Utilities 9
Real Estate 6
Other (includes securities lending collateral) 17
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
Material Fund Change [Text Block]
Material Fund Changes
Effective January 1, 2026, a new expense limitation of 1.89% went into effect for Class C shares.
Effective January 21, 2026, Class C shares were closed to new purchases by new or existing shareholders, except by existing shareholders through qualifying transactions.
Material Fund Change Expenses [Text Block]
Effective January 1, 2026, a new expense limitation of 1.89% went into effect for Class C shares.
C000060288 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Equity Income Fund
Class Name Class I
Trading Symbol PXIIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Equity Income Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Material Fund Change Notice [Text Block] This report describes changes to the Fund that occurred from the beginning of the reporting period through the date of issuance of this report.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Equity Income Fund
Class I / PXIIX		 $47 0.92%
Expenses Paid, Amount $ 47
Expense Ratio, Percent 0.92%
Material Change Date Jan. 01, 2026
Net Assets $ 161,994,000
Holdings Count | Holding 39
Investment Company Portfolio Turnover 9.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $161,994
Total number of portfolio holdings 39
Portfolio turnover rate as of the end of the reporting period 9%
Holdings [Text Block]
Asset Allocation(1)
Industrials 17 %
Information Technology 16
Financials 16
Health Care 10
Consumer Staples 9
Utilities 9
Real Estate 6
Other (includes securities lending collateral) 17
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
Material Fund Change [Text Block]
Material Fund Changes
Effective January 1, 2026, a new expense limitation of 0.89% went into effect for Class I shares.
Material Fund Change Expenses [Text Block]
Effective January 1, 2026, a new expense limitation of 0.89% went into effect for Class I shares.
C000199782 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Equity Income Fund
Class Name Class R6
Trading Symbol VECRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Equity Income Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Equity Income Fund
Class R6 / VECRX		 $39 0.78%
Expenses Paid, Amount $ 39
Expense Ratio, Percent 0.78%
Net Assets $ 161,994,000
Holdings Count | Holding 39
Investment Company Portfolio Turnover 9.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $161,994
Total number of portfolio holdings 39
Portfolio turnover rate as of the end of the reporting period 9%
Holdings [Text Block]
Asset Allocation(1)
Industrials 17 %
Information Technology 16
Financials 16
Health Care 10
Consumer Staples 9
Utilities 9
Real Estate 6
Other (includes securities lending collateral) 17
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000224195 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus Tactical Allocation Fund
Class Name Class R6
Trading Symbol VTARX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus Tactical Allocation Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus Tactical Allocation Fund
Class R6 / VTARX		 $29 0.60%
Expenses Paid, Amount $ 29
Expense Ratio, Percent 0.60%
Net Assets $ 547,567,000
Holdings Count | Holding 385
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $547,567
Total number of portfolio holdings 385
Portfolio turnover rate as of the end of the reporting period 16%
Holdings [Text Block]
Asset Allocation(1)
Common Stocks 60 %
Information Technology 15
Industrials 14
Financials 10
All Other Common Stocks 21
Corporate Bonds and Notes 12
Financials 6
Energy 1
Health Care 1
All Other Corporate Bonds and Notes 4
Affiliated Mutual Funds 14
Mortgage-Backed Securities 7
U.S. Government Securities 6
Foreign Government Securities 1
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000211088 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus Tactical Allocation Fund
Class Name Class I
Trading Symbol VTAIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus Tactical Allocation Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus Tactical Allocation Fund
Class I / VTAIX		 $37 0.76%
Expenses Paid, Amount $ 37
Expense Ratio, Percent 0.76%
Net Assets $ 547,567,000
Holdings Count | Holding 385
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $547,567
Total number of portfolio holdings 385
Portfolio turnover rate as of the end of the reporting period 16%
Holdings [Text Block]
Asset Allocation(1)
Common Stocks 60 %
Information Technology 15
Industrials 14
Financials 10
All Other Common Stocks 21
Corporate Bonds and Notes 12
Financials 6
Energy 1
Health Care 1
All Other Corporate Bonds and Notes 4
Affiliated Mutual Funds 14
Mortgage-Backed Securities 7
U.S. Government Securities 6
Foreign Government Securities 1
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060293 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus Tactical Allocation Fund
Class Name Class C
Trading Symbol POICX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus Tactical Allocation Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Material Fund Change Notice [Text Block] This report describes changes to the Fund that occurred from the beginning of the reporting period through the date of issuance of this report.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus Tactical Allocation Fund
Class C / POICX		 $84 1.75%
Expenses Paid, Amount $ 84
Expense Ratio, Percent 1.75%
Net Assets $ 547,567,000
Holdings Count | Holding 385
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $547,567
Total number of portfolio holdings 385
Portfolio turnover rate as of the end of the reporting period 16%
Holdings [Text Block]
Asset Allocation(1)
Common Stocks 60 %
Information Technology 15
Industrials 14
Financials 10
All Other Common Stocks 21
Corporate Bonds and Notes 12
Financials 6
Energy 1
Health Care 1
All Other Corporate Bonds and Notes 4
Affiliated Mutual Funds 14
Mortgage-Backed Securities 7
U.S. Government Securities 6
Foreign Government Securities 1
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
Material Fund Change [Text Block]
Material Fund Changes
Effective January 21, 2026, Class C shares were closed to new purchases by new or existing shareholders, except by existing shareholders through qualifying transactions.
C000060291 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus Tactical Allocation Fund
Class Name Class A
Trading Symbol NAINX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus Tactical Allocation Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus Tactical Allocation Fund
Class A / NAINX		 $48 0.99%
Expenses Paid, Amount $ 48
Expense Ratio, Percent 0.99%
Net Assets $ 547,567,000
Holdings Count | Holding 385
Investment Company Portfolio Turnover 16.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $547,567
Total number of portfolio holdings 385
Portfolio turnover rate as of the end of the reporting period 16%
Holdings [Text Block]
Asset Allocation(1)
Common Stocks 60 %
Information Technology 15
Industrials 14
Financials 10
All Other Common Stocks 21
Corporate Bonds and Notes 12
Financials 6
Energy 1
Health Care 1
All Other Corporate Bonds and Notes 4
Affiliated Mutual Funds 14
Mortgage-Backed Securities 7
U.S. Government Securities 6
Foreign Government Securities 1
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060294 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Mid-Cap Growth Fund
Class Name Class A
Trading Symbol PHSKX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Mid-Cap Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Mid-Cap Growth Fund
Class A / PHSKX		 $60 1.33%
Expenses Paid, Amount $ 60
Expense Ratio, Percent 1.33%
Net Assets $ 433,400,000
Holdings Count | Holding 32
Investment Company Portfolio Turnover 12.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $433,400
Total number of portfolio holdings 32
Portfolio turnover rate as of the end of the reporting period 12%
Holdings [Text Block]
Asset Allocation(1)
Information Technology 31 %
Industrials 19
Consumer Discretionary 17
Health Care 15
Financials 8
Communication Services 5
Consumer Staples 5
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060296 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Mid-Cap Growth Fund
Class Name Class C
Trading Symbol PSKCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Mid-Cap Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Mid-Cap Growth Fund
Class C / PSKCX		 $96 2.11%
Expenses Paid, Amount $ 96
Expense Ratio, Percent 2.11%
Net Assets $ 433,400,000
Holdings Count | Holding 32
Investment Company Portfolio Turnover 12.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $433,400
Total number of portfolio holdings 32
Portfolio turnover rate as of the end of the reporting period 12%
Holdings [Text Block]
Asset Allocation(1)
Information Technology 31 %
Industrials 19
Consumer Discretionary 17
Health Care 15
Financials 8
Communication Services 5
Consumer Staples 5
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060297 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Mid-Cap Growth Fund
Class Name Class I
Trading Symbol PICMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Mid-Cap Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Mid-Cap Growth Fund
Class I / PICMX		 $50 1.09%
Expenses Paid, Amount $ 50
Expense Ratio, Percent 1.09%
Net Assets $ 433,400,000
Holdings Count | Holding 32
Investment Company Portfolio Turnover 12.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $433,400
Total number of portfolio holdings 32
Portfolio turnover rate as of the end of the reporting period 12%
Holdings [Text Block]
Asset Allocation(1)
Information Technology 31 %
Industrials 19
Consumer Discretionary 17
Health Care 15
Financials 8
Communication Services 5
Consumer Staples 5
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000199783 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Mid-Cap Growth Fund
Class Name Class R6
Trading Symbol VRMGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Mid-Cap Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Mid-Cap Growth Fund
Class R6 / VRMGX		 $38 0.84%
Expenses Paid, Amount $ 38
Expense Ratio, Percent 0.84%
Net Assets $ 433,400,000
Holdings Count | Holding 32
Investment Company Portfolio Turnover 12.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $433,400
Total number of portfolio holdings 32
Portfolio turnover rate as of the end of the reporting period 12%
Holdings [Text Block]
Asset Allocation(1)
Information Technology 31 %
Industrials 19
Consumer Discretionary 17
Health Care 15
Financials 8
Communication Services 5
Consumer Staples 5
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000176670 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Cap Value Fund
Class Name Class R6
Trading Symbol VQSRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Cap Value Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Cap Value Fund
Class R6 / VQSRX		 $44 0.89%
Expenses Paid, Amount $ 44
Expense Ratio, Percent 0.89%
Net Assets $ 600,804,000
Holdings Count | Holding 29
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $600,804
Total number of portfolio holdings 29
Portfolio turnover rate as of the end of the reporting period 6%
Holdings [Text Block]
Asset Allocation(1)
Industrials 43 %
Financials 27
Consumer Discretionary 12
Consumer Staples 6
Materials 4
Health Care 4
Real Estate 3
Other (includes short-term investment) 1
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060300 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Cap Value Fund
Class Name Class I
Trading Symbol PXQSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Cap Value Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Cap Value Fund
Class I / PXQSX		 $49 1.00%
Expenses Paid, Amount $ 49
Expense Ratio, Percent 1.00%
Net Assets $ 600,804,000
Holdings Count | Holding 29
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $600,804
Total number of portfolio holdings 29
Portfolio turnover rate as of the end of the reporting period 6%
Holdings [Text Block]
Asset Allocation(1)
Industrials 43 %
Financials 27
Consumer Discretionary 12
Consumer Staples 6
Materials 4
Health Care 4
Real Estate 3
Other (includes short-term investment) 1
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060299 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Cap Value Fund
Class Name Class C
Trading Symbol PQSCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Cap Value Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Cap Value Fund
Class C / PQSCX		 $99 2.01%
Expenses Paid, Amount $ 99
Expense Ratio, Percent 2.01%
Net Assets $ 600,804,000
Holdings Count | Holding 29
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $600,804
Total number of portfolio holdings 29
Portfolio turnover rate as of the end of the reporting period 6%
Holdings [Text Block]
Asset Allocation(1)
Industrials 43 %
Financials 27
Consumer Discretionary 12
Consumer Staples 6
Materials 4
Health Care 4
Real Estate 3
Other (includes short-term investment) 1
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000060298 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Cap Value Fund
Class Name Class A
Trading Symbol PQSAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Cap Value Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Cap Value Fund
Class A / PQSAX		 $61 1.23%
Expenses Paid, Amount $ 61
Expense Ratio, Percent 1.23%
Net Assets $ 600,804,000
Holdings Count | Holding 29
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $600,804
Total number of portfolio holdings 29
Portfolio turnover rate as of the end of the reporting period 6%
Holdings [Text Block]
Asset Allocation(1)
Industrials 43 %
Financials 27
Consumer Discretionary 12
Consumer Staples 6
Materials 4
Health Care 4
Real Estate 3
Other (includes short-term investment) 1
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000077895 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Mid-Cap Core Fund
Class Name Class A
Trading Symbol VMACX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Mid-Cap Core Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Mid-Cap Core Fund
Class A / VMACX		 $58 1.20%
Expenses Paid, Amount $ 58
Expense Ratio, Percent 1.20%
Net Assets $ 1,943,968,000
Holdings Count | Holding 30
Investment Company Portfolio Turnover 9.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $1,943,968
Total number of portfolio holdings 30
Portfolio turnover rate as of the end of the reporting period 9%
Holdings [Text Block]
Asset Allocation(1)
Industrials 48 %
Financials 20
Information Technology 13
Health Care 10
Consumer Discretionary 9
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000077896 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Mid-Cap Core Fund
Class Name Class C
Trading Symbol VMCCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Mid-Cap Core Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Mid-Cap Core Fund
Class C / VMCCX		 $94 1.95%
Expenses Paid, Amount $ 94
Expense Ratio, Percent 1.95%
Net Assets $ 1,943,968,000
Holdings Count | Holding 30
Investment Company Portfolio Turnover 9.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $1,943,968
Total number of portfolio holdings 30
Portfolio turnover rate as of the end of the reporting period 9%
Holdings [Text Block]
Asset Allocation(1)
Industrials 48 %
Financials 20
Information Technology 13
Health Care 10
Consumer Discretionary 9
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000077897 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Mid-Cap Core Fund
Class Name Class I
Trading Symbol VIMCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Mid-Cap Core Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Mid-Cap Core Fund
Class I / VIMCX		 $46 0.95%
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.95%
Net Assets $ 1,943,968,000
Holdings Count | Holding 30
Investment Company Portfolio Turnover 9.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $1,943,968
Total number of portfolio holdings 30
Portfolio turnover rate as of the end of the reporting period 9%
Holdings [Text Block]
Asset Allocation(1)
Industrials 48 %
Financials 20
Information Technology 13
Health Care 10
Consumer Discretionary 9
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000199784 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Mid-Cap Core Fund
Class Name Class R6
Trading Symbol VRMCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Mid-Cap Core Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Mid-Cap Core Fund
Class R6 / VRMCX		 $42 0.87%
Expenses Paid, Amount $ 42
Expense Ratio, Percent 0.87%
Net Assets $ 1,943,968,000
Holdings Count | Holding 30
Investment Company Portfolio Turnover 9.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $1,943,968
Total number of portfolio holdings 30
Portfolio turnover rate as of the end of the reporting period 9%
Holdings [Text Block]
Asset Allocation(1)
Industrials 48 %
Financials 20
Information Technology 13
Health Care 10
Consumer Discretionary 9
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000199121 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Mid Cap Core Fund
Class Name Class R6
Trading Symbol VKSRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Mid Cap Core Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Mid Cap Core Fund
Class R6 / VKSRX		 $42 0.90%
Expenses Paid, Amount $ 42
Expense Ratio, Percent 0.90%
Net Assets $ 1,430,015,000
Holdings Count | Holding 31
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $1,430,015
Total number of portfolio holdings 31
Portfolio turnover rate as of the end of the reporting period 5%
Holdings [Text Block]
Asset Allocation(1)
Industrials 32 %
Financials 21
Consumer Discretionary 20
Information Technology 18
Health Care 6
Consumer Staples 3
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000199120 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Mid Cap Core Fund
Class Name Class I
Trading Symbol VKSIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Mid Cap Core Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Mid Cap Core Fund
Class I / VKSIX		 $47 1.00%
Expenses Paid, Amount $ 47
Expense Ratio, Percent 1.00%
Net Assets $ 1,430,015,000
Holdings Count | Holding 31
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $1,430,015
Total number of portfolio holdings 31
Portfolio turnover rate as of the end of the reporting period 5%
Holdings [Text Block]
Asset Allocation(1)
Industrials 32 %
Financials 21
Consumer Discretionary 20
Information Technology 18
Health Care 6
Consumer Staples 3
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000199119 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Mid Cap Core Fund
Class Name Class C
Trading Symbol VKSCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Mid Cap Core Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Mid Cap Core Fund
Class C / VKSCX		 $94 2.01%
Expenses Paid, Amount $ 94
Expense Ratio, Percent 2.01%
Net Assets $ 1,430,015,000
Holdings Count | Holding 31
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $1,430,015
Total number of portfolio holdings 31
Portfolio turnover rate as of the end of the reporting period 5%
Holdings [Text Block]
Asset Allocation(1)
Industrials 32 %
Financials 21
Consumer Discretionary 20
Information Technology 18
Health Care 6
Consumer Staples 3
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000199118 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Mid Cap Core Fund
Class Name Class A
Trading Symbol VKSAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Mid Cap Core Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Mid Cap Core Fund
Class A / VKSAX		 $59 1.25%
Expenses Paid, Amount $ 59
Expense Ratio, Percent 1.25%
Net Assets $ 1,430,015,000
Holdings Count | Holding 31
Investment Company Portfolio Turnover 5.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $1,430,015
Total number of portfolio holdings 31
Portfolio turnover rate as of the end of the reporting period 5%
Holdings [Text Block]
Asset Allocation(1)
Industrials 32 %
Financials 21
Consumer Discretionary 20
Information Technology 18
Health Care 6
Consumer Staples 3
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000209770 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus SGA Global Growth Fund
Class Name Class A
Trading Symbol SGAAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus SGA Global Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus SGA Global Growth Fund
Class A / SGAAX		 $59 1.26%
Expenses Paid, Amount $ 59
Expense Ratio, Percent 1.26%
Net Assets $ 152,158,000
Holdings Count | Holding 32
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $152,158
Total number of portfolio holdings 32
Portfolio turnover rate as of the end of the reporting period 15%
Holdings [Text Block]
Asset Allocation(1)
Information Technology 34 %
Financials 21
Consumer Discretionary 15
Communication Services 14
Industrials 9
Health Care 7
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000209771 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus SGA Global Growth Fund
Class Name Class C
Trading Symbol SGACX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus SGA Global Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block]  You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Material Fund Change Notice [Text Block] This report describes changes to the Fund that occurred from the beginning of the reporting period through the date of issuance of this report.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus SGA Global Growth Fund
Class C / SGACX		 $93 2.01%
Expenses Paid, Amount $ 93
Expense Ratio, Percent 2.01%
Net Assets $ 152,158,000
Holdings Count | Holding 32
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $152,158
Total number of portfolio holdings 32
Portfolio turnover rate as of the end of the reporting period 15%
Holdings [Text Block]
Asset Allocation(1)
Information Technology 34 %
Financials 21
Consumer Discretionary 15
Communication Services 14
Industrials 9
Health Care 7
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
Material Fund Change [Text Block]
Material Fund Changes
Effective January 21, 2026, Class C shares were closed to new purchases by new or existing shareholders, except by existing shareholders through qualifying transactions.
C000209768 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus SGA Global Growth Fund
Class Name Class I
Trading Symbol SGAPX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus SGA Global Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus SGA Global Growth Fund
Class I / SGAPX		 $47 1.01%
Expenses Paid, Amount $ 47
Expense Ratio, Percent 1.01%
Net Assets $ 152,158,000
Holdings Count | Holding 32
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $152,158
Total number of portfolio holdings 32
Portfolio turnover rate as of the end of the reporting period 15%
Holdings [Text Block]
Asset Allocation(1)
Information Technology 34 %
Financials 21
Consumer Discretionary 15
Communication Services 14
Industrials 9
Health Care 7
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000209769 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus SGA Global Growth Fund
Class Name Class R6
Trading Symbol SGARX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus SGA Global Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus SGA Global Growth Fund
Class R6 / SGARX		 $42 0.91%
Expenses Paid, Amount $ 42
Expense Ratio, Percent 0.91%
Net Assets $ 152,158,000
Holdings Count | Holding 32
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $152,158
Total number of portfolio holdings 32
Portfolio turnover rate as of the end of the reporting period 15%
Holdings [Text Block]
Asset Allocation(1)
Information Technology 34 %
Financials 21
Consumer Discretionary 15
Communication Services 14
Industrials 9
Health Care 7
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000223338 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Mid Cap Growth Fund
Class Name Class R6
Trading Symbol VRKSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Mid Cap Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Material Fund Change Notice [Text Block] This report describes changes to the Fund that occurred from the beginning of the reporting period through the date of issuance of this report.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Mid Cap Growth Fund
Class R6 / VRKSX		 $43 0.94%
Expenses Paid, Amount $ 43
Expense Ratio, Percent 0.94%
Material Change Date Jan. 01, 2026
Net Assets $ 5,793,000
Holdings Count | Holding 28
Investment Company Portfolio Turnover 27.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $5,793
Total number of portfolio holdings 28
Portfolio turnover rate as of the end of the reporting period 27%
Holdings [Text Block]
Asset Allocation(1)
Industrials 34 %
Health Care 22
Information Technology 14
Financials 13
Consumer Discretionary 10
Communication Services 4
Consumer Staples 2
Other 1
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
Material Fund Change [Text Block]
Material Fund Changes
Effective January 1, 2026, a new expense limitation of 0.89% went into effect for Class R6 shares.
Material Fund Change Expenses [Text Block]
Effective January 1, 2026, a new expense limitation of 0.89% went into effect for Class R6 shares.
C000223337 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Mid Cap Growth Fund
Class Name Class I
Trading Symbol VIKSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Mid Cap Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Material Fund Change Notice [Text Block] This report describes changes to the Fund that occurred from the beginning of the reporting period through the date of issuance of this report.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Mid Cap Growth Fund
Class I / VIKSX		 $46 1.01%
Expenses Paid, Amount $ 46
Expense Ratio, Percent 1.01%
Material Change Date Jan. 01, 2026
Net Assets $ 5,793,000
Holdings Count | Holding 28
Investment Company Portfolio Turnover 27.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $5,793
Total number of portfolio holdings 28
Portfolio turnover rate as of the end of the reporting period 27%
Holdings [Text Block]
Asset Allocation(1)
Industrials 34 %
Health Care 22
Information Technology 14
Financials 13
Consumer Discretionary 10
Communication Services 4
Consumer Staples 2
Other 1
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
Material Fund Change [Text Block]
Material Fund Changes
Effective January 1, 2026, a new expense limitation of 0.95% went into effect for Class I shares.
Material Fund Change Expenses [Text Block]
Effective January 1, 2026, a new expense limitation of 0.95% went into effect for Class I shares.
C000223339 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Mid Cap Growth Fund
Class Name Class A
Trading Symbol VAKSX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Mid Cap Growth Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Material Fund Change Notice [Text Block] This report describes changes to the Fund that occurred from the beginning of the reporting period through the date of issuance of this report.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Mid Cap Growth Fund
Class A / VAKSX		 $58 1.26%
Expenses Paid, Amount $ 58
Expense Ratio, Percent 1.26%
Material Change Date Jan. 01, 2026
Net Assets $ 5,793,000
Holdings Count | Holding 28
Investment Company Portfolio Turnover 27.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $5,793
Total number of portfolio holdings 28
Portfolio turnover rate as of the end of the reporting period 27%
Holdings [Text Block]
Asset Allocation(1)
Industrials 34 %
Health Care 22
Information Technology 14
Financials 13
Consumer Discretionary 10
Communication Services 4
Consumer Staples 2
Other 1
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
Material Fund Change [Text Block]
Material Fund Changes
Effective January 1, 2026, a new expense limitation of 1.20% went into effect for Class A shares.
Material Fund Change Expenses [Text Block]
Effective January 1, 2026, a new expense limitation of 1.20% went into effect for Class A shares.
C000229070 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Mid Cap Value Fund
Class Name Class A
Trading Symbol VKSDX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Mid Cap Value Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Mid Cap Value Fund
Class A / VKSDX		 $57 1.17%
Expenses Paid, Amount $ 57
Expense Ratio, Percent 1.17%
Net Assets $ 5,881,000
Holdings Count | Holding 31
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $5,881
Total number of portfolio holdings 31
Portfolio turnover rate as of the end of the reporting period 6%
Holdings [Text Block]
Asset Allocation(1)
Industrials 43 %
Financials 21
Consumer Discretionary 11
Consumer Staples 8
Materials 6
Health Care 5
Real Estate 3
Other 3
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000229072 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Mid Cap Value Fund
Class Name Class I
Trading Symbol VKSFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Mid Cap Value Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Mid Cap Value Fund
Class I / VKSFX		 $45 0.92%
Expenses Paid, Amount $ 45
Expense Ratio, Percent 0.92%
Net Assets $ 5,881,000
Holdings Count | Holding 31
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $5,881
Total number of portfolio holdings 31
Portfolio turnover rate as of the end of the reporting period 6%
Holdings [Text Block]
Asset Allocation(1)
Industrials 43 %
Financials 21
Consumer Discretionary 11
Consumer Staples 8
Materials 6
Health Care 5
Real Estate 3
Other 3
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.
C000229069 [Member]  
Shareholder Report [Line Items]  
Fund Name Virtus KAR Small-Mid Cap Value Fund
Class Name Class R6
Trading Symbol VKSGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the Virtus KAR Small-Mid Cap Value Fund (“Fund”) for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.virtus.com/investor-resources/mutual-fund-documents. You can also request this information by contacting us at 1‑800‑243‑1574.
Additional Information Phone Number 1‑800‑243‑1574
Additional Information Website https://www.virtus.com/investor-resources/mutual-fund-documents
Expenses [Text Block]
What were the Fund costs for the last six months?
(Based on a hypothetical $10,000 investment)
Fund (Class) Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment
Virtus KAR Small-Mid Cap Value Fund
Class R6 / VKSGX		 $40 0.82%
Expenses Paid, Amount $ 40
Expense Ratio, Percent 0.82%
Net Assets $ 5,881,000
Holdings Count | Holding 31
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of March 31, 2026)
Fund net assets (‘000s) $5,881
Total number of portfolio holdings 31
Portfolio turnover rate as of the end of the reporting period 6%
Holdings [Text Block]
Asset Allocation(1)
Industrials 43 %
Financials 21
Consumer Discretionary 11
Consumer Staples 8
Materials 6
Health Care 5
Real Estate 3
Other 3
Total 100 %
​(1)
Percentage of total investments as of March 31, 2026.