v3.25.2
Shareholder Report
 6 Months Ended
Jun. 30, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name MERGER FUND VL
Entity Central Index Key 0001208133
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2025
C000014130 [Member]  
Shareholder Report [Line Items]  
Fund Name The Merger Fund® VL
Class Name Class I
Trading Symbol MERVX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the The Merger Fund® VL (“Fund”) for the period of January 1, 2025 to June 30, 2025.
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/variable-insurance-fund-documents. You can also request this information by contacting us at 1‑800‑367‑5877.
Additional Information Phone Number 1‑800‑367‑5877
Additional Information Website https://www.virtus.com/investor-resources/variable-insurance-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
The Merger Fund® VL
Class I		 $72 1.41%
Expenses Paid, Amount $ 72
Expense Ratio, Percent 1.41%
Net Assets $ 24,040,000
Holdings Count | Holding 320
Investment Company Portfolio Turnover 70.00%
Additional Fund Statistics [Text Block]
KEY FUND STATISTICS (as of June 30, 2025)
Fund net assets (‘000s) $24,040
Total number of portfolio holdings 320
Portfolio turnover rate as of the end of the reporting period 70%
Holdings [Text Block]
DEAL COMPOSITION
Type of Buyer
Strategic 85.4%
Financial 14.6%
By Deal Type
Friendly 100.0%
Deal Terms*
Cash 69.8%
Stock with Fixed Exchange Ratio 25.6%
Cash and Stock 4.2%
Stock with Fixed Exchange Ratio (Collar) 0.4%
​*
Data expressed as a percentage of long common stock, corporate bonds and swap contract positions as of June 30, 2025.
Asset Allocation(1)
Financials 35%
Energy 20%
Communication Services 19%
Consumer Staples 7%
Consumer Discretionary 6%
Industrials 6%
Information Technology 5%
Health Care 1%
Materials 1%
Total 100%
​(1)
Percentage of total investments as of June 30, 2025.