Fees and Expenses |
Apr. 21, 2026 |
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| DF Dividend VIT Fund | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Expense Heading [Optional Text] | Fees and Expenses of the Fund: | ||||||||||||||||||||||||
| Expense Narrative [Text Block] | The following table describes the annual operating expenses that you pay indirectly if you invest in the Fund through your retirement plan or if you allocate your insurance contract premiums or payments to the Fund. However, each insurance contract and separate account involves fees and expenses that are not described in this Prospectus. If the fees and expenses of your insurance contract or separate account were included in this table, your overall expenses would be higher. You should review the insurance contract prospectus for a complete description of fees and expenses.
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| 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] |
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| 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.
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| Expense Example by, Year, Caption [Text] | 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. You would pay the same expenses if you did not redeem your shares. However, each insurance contract and separate account involves fees and expenses that are not included in the Example. If these fees and expenses were included in the Example, your overall expenses would be higher. 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 upon these assumptions your costs would be: | ||||||||||||||||||||||||
| Expense Example, With Redemption [Table] |
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| 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. 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 52% of the average value of its portfolio.
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| Portfolio Turnover, Rate | 52.00% | ||||||||||||||||||||||||
| DF Momentum VIT Fund | |||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||
| Expense Heading [Optional Text] | Fees and Expenses of the Fund: | ||||||||||||||||||||||||
| Expense Narrative [Text Block] | The following table describes the annual operating expenses that you pay indirectly if you invest in the Fund through your retirement plan or if you allocate your insurance contract premiums or payments to the Fund. However, each insurance contract and separate account involves fees and expenses that are not described in this Prospectus. If the fees and expenses of your insurance contract or separate account were included in this table, your overall expenses would be higher. You should review the insurance contract prospectus for a complete description of fees and expenses.
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| 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] |
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| 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.
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| Expense Example by, Year, Caption [Text] | 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. You would pay the same expenses if you did not redeem your shares. However, each insurance contract and separate account involves fees and expenses that are not included in the Example. If these fees and expenses were included in the Example, your overall expenses would be higher. 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 upon these assumptions your costs would be: | ||||||||||||||||||||||||
| Expense Example, With Redemption [Table] |
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| 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. 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 323% of the average value of its portfolio.
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| Portfolio Turnover, Rate | 323.00% |