Fees and Expenses |
Dec. 31, 2024 |
|---|---|
| Transamerica BlackRock iShares Tactical - Balanced VP | |
| Prospectus [Line Items] | |
| Expenses Restated to Reflect Current [Text] | Management fees have been restated to reflect a reduction in management fees effective May 1, 2024. |
| Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] | Acquired fund fees and expenses are not included in the calculation of the ratios of expenses to average net assets shown in the Financial Highlights section of the portfolio’s prospectus. |
| Operating Expenses Caption [Optional Text] | Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) |
| Expense Example [Heading] | Example: |
| Expense Example Narrative [Text Block] | This Example is intended to help you compare the cost of investing in the portfolio with the cost of investing in other mutual funds.The Example assumes that you invest $10,000 in the portfolio for the time periods indicated and then redeem all shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the portfolio’s operating expenses remain the same. The Example does not reflect charges that are, or may be, imposed under your variable life insurance policy or variable annuity contract. If such charges were reflected, costs would be higher. The Example reflects applicable waivers and/or reimbursements for the duration of such arrangement(s). Although your actual costs may be higher or lower, based on these assumptions your costs would be: |
| Transamerica BlackRock iShares Tactical - Conservative VP | |
| Prospectus [Line Items] | |
| Expenses Restated to Reflect Current [Text] | Management fees have been restated to reflect a reduction in management fees effective May 1, 2024. |
| Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text] | Acquired fund fees and expenses are not included in the calculation of the ratios of expenses to average net assets shown in the Financial Highlights section of the portfolio’s prospectus. |
| Operating Expenses Caption [Optional Text] | Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) |
| Expense Example [Heading] | Example: |
| Expense Example Narrative [Text Block] | This Example is intended to help you compare the cost of investing in the portfolio with the cost of investing in other mutual funds.The Example assumes that you invest $10,000 in the portfolio for the time periods indicated and then redeem all shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the portfolio’s operating expenses remain the same. The Example does not reflect charges that are, or may be, imposed under your variable life insurance policy or variable annuity contract. If such charges were reflected, costs would be higher. The Example reflects applicable waivers and/or reimbursements for the duration of such arrangement(s). Although your actual costs may be higher or lower, based on these assumptions your costs would be: |