Investment Risks - Transamerica International Equity	Oct. 31, 2025
Credit Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Credit – If an issuer or other obligor (such as a party providing insurance or other credit enhancement) of a security held by the fund or a counterparty to a financial contract with the fund is unable or unwilling to meet its financial obligations, or is downgraded or perceived to be less creditworthy (whether by market participants, ratings agencies, pricing services or otherwise), or if the value of any underlying assets declines, the value of your investment will typically decline. A decline may be rapid and/or significant, particularly in certain market environments. In addition, the fund may incur costs and may be hindered or delayed in enforcing its rights against an issuer, obligor or counterparty.
Derivatives [Member]
Prospectus [Line Items]
Risk [Text Block]	Derivatives –The use of derivatives involves a variety of risks, which may be different from, or greater than, the risks associated with investing in traditional securities, such as stocks and bonds. Risks of derivatives include leverage risk, liquidity risk, interest rate risk, valuation risk, market risk, counterparty risk and credit risk. Use of derivatives can increase fund losses, increase costs, reduce opportunities for gains, increase fund volatility, and not produce the result intended. Certain derivatives have the potential for unlimited loss, regardless of the size of the initial investment. Even a small investment in derivatives can have a disproportionate impact on the fund. Derivatives may be difficult or impossible to sell, unwind or value, and the counterparty (including, if applicable, the fund’s clearing broker, the derivatives exchange or the clearinghouse) may default on its obligations to the fund. In certain cases, the fund may incur costs and may be hindered or delayed in enforcing its rights against or closing out derivatives instruments with a counterparty, which may result in additional losses. Derivatives are also generally subject to the risks applicable to the assets, rates, indices or other indicators underlying the derivative, including market risk, credit risk, liquidity risk, management risk and valuation risk. Also, suitable derivative transactions may not be available in all circumstances or at reasonable prices. The value of a derivative may fluctuate more or less than, or otherwise not correlate well with, the underlying assets, rates, indices or other indicators to which it relates. Using derivatives also subjects the fund to certain operational and legal risks. The fund may segregate cash or other liquid assets to cover the funding of its obligations under derivatives contracts or make margin payments when it takes positions in derivatives involving obligations to third parties. Rule 18f‑4 under the 1940 Act provides a comprehensive regulatory framework for the use of derivatives by funds and imposes requirements and restrictions on funds using derivatives. Rule 18f‑4 could have an adverse impact on the fund’s performance and its ability to implement its investment strategies and may increase costs related to the fund’s use of derivatives. The rule may affect the availability, liquidity or performance of derivatives, and may not effectively limit the risk of loss from derivatives.
Leveraging [Member]
Prospectus [Line Items]
Risk [Text Block]	Leveraging – To the extent that the fund borrows or uses derivatives or other investments, such as ETFs, that have embedded leverage, your investment may be subject to heightened volatility, risk of loss and costs. Other risks also will be compounded because leverage generally magnifies the effect of a change in the value of an asset and creates a risk of loss of value on a larger pool of assets than the fund would otherwise have. Use of leverage may result in the loss of a substantial amount, and possibly all, of the fund’s assets. The fund also may have to sell assets at inopportune times to satisfy its obligations.
Sustainability and or Environmental Social and Governance ESG Considerations [Member]
Prospectus [Line Items]
Risk [Text Block]	Sustainability and/or Environmental, Social and Governance (“ESG”) Considerations – The sub‑adviser considers sustainability and/or ESG factors that it deems relevant, along with other factors and analysis, when sub‑advising the fund. This usage of sustainability and/or ESG factors or criteria is sometimes referred to as “ESG integration.” The sub‑adviser may consider sustainability and/or ESG factors on a meaningful portion of the fund’s investments. The sub‑adviser may give little or no weight to sustainability and/or ESG factors for certain investments, and not every sustainability and/or ESG factor may be identified or evaluated for every investment. Consideration of sustainability and/or ESG factors is not determinative in the sub‑adviser’s investment process, and the sub‑adviser may conclude that other attributes of an investment outweigh sustainability and/or ESG considerations when making investment decisions. Applying sustainability and/or ESG factors as part of the fund’s security selection process may impact the sub‑adviser’s investment decisions and may affect the fund’s exposure to risks associated with certain issuers, asset classes, industries and sectors. Sustainability and ESG factors are not uniformly defined and applying such factors involves subjective assessments. Sustainability and ESG ratings and assessments of issuers can vary across investment advisers (including sub‑advisers) and third party data providers and may change over time. Sustainability and ESG factors can be difficult to apply consistently across issuers, regions, countries, industries and sectors. The application of these factors could negatively impact the fund’s performance. Sustainability and ESG information from issuers and from third party data providers may be incomplete, delayed, inaccurate or unavailable, which could lead to an incorrect assessment of a company’s sustainability or ESG characteristics. Regulation of sustainability and ESG investing in the U.S. and abroad is evolving. Regulatory changes with respect to ESG integration could impact the sub‑adviser’s ability to consider sustainability and/or ESG criteria as part of its investment process.
Underlying Exchange Traded Funds [Member]
Prospectus [Line Items]
Risk [Text Block]	Underlying Exchange-Traded Funds – To the extent the fund invests its assets in underlying ETFs, its ability to achieve its investment objective will depend in part on the performance of the underlying ETFs in which it invests. Investing in underlying ETFs subjects the fund to the risks of investing in the underlying securities or assets held by those ETFs. Each of the underlying ETFs in which the fund may invest has its own investment risks, and those risks can affect the value of the underlying ETFs’ shares and therefore the value of the fund’s investments. There can be no assurance that the investment objective of any underlying ETF will be achieved. To the extent that the fund invests more of its assets in one underlying ETF than in another, the fund will have greater exposure to the risks of that underlying ETF. In addition, the fund will bear a pro rata portion of the operating expenses of the underlying ETFs in which it invests.
Counterparty [Member]
Prospectus [Line Items]
Risk [Text Block]	Counterparty – The fund could lose money if the counterparties to derivatives, repurchase agreements and/or other financial contracts entered into for the fund do not fulfill their contractual obligations. In addition, the fund may incur costs and may be hindered or delayed in enforcing its rights against a counterparty. These risks may be greater to the extent the fund has more contractual exposure to a counterparty.

Investment Risks - Transamerica International Equity

Oct. 31, 2025

Credit – If an issuer or other obligor (such as a party providing insurance or other credit enhancement) of a security held by the fund or a counterparty to a financial contract with the fund is unable or unwilling to meet its financial obligations, or is downgraded or perceived to be less creditworthy (whether by market participants, ratings agencies, pricing services or otherwise), or if the value of any underlying assets declines, the value of your investment will typically decline. A decline may be rapid and/or significant, particularly in certain market environments. In addition, the fund may incur costs and may be hindered or delayed in enforcing its rights against an issuer, obligor or counterparty.

Prospectus [Line Items]

Risk [Text Block]

Derivatives –The use of derivatives involves a variety of risks, which may be different from, or greater than, the risks associated with investing in traditional securities, such as stocks and bonds. Risks of derivatives include leverage risk, liquidity risk, interest rate risk, valuation risk, market risk, counterparty risk and credit risk. Use of derivatives can increase fund losses, increase costs, reduce opportunities for gains, increase fund volatility, and not produce the result intended. Certain derivatives have the potential for unlimited loss, regardless of the size of the initial investment. Even a small investment in derivatives can have a disproportionate impact on the fund. Derivatives may be difficult or impossible to sell, unwind or value, and the counterparty (including, if applicable, the fund’s clearing broker, the derivatives exchange or the clearinghouse) may default on its obligations to the fund. In certain cases, the fund may incur costs and may be hindered or delayed in enforcing its rights against or closing out derivatives instruments with a counterparty, which may result in additional losses. Derivatives are also generally subject to the risks applicable to the assets, rates, indices or other indicators underlying the derivative, including market risk, credit risk, liquidity risk, management risk and valuation risk. Also, suitable derivative transactions may not be available in all circumstances or at reasonable prices. The value of a derivative may fluctuate more or less than, or otherwise not correlate well with, the underlying assets, rates, indices or other indicators to which it relates. Using derivatives also subjects the fund to certain operational and legal risks. The fund may segregate cash or other liquid assets to cover the funding of its obligations under derivatives contracts or make margin payments when it takes positions in derivatives involving obligations to third parties. Rule 18f‑4 under the 1940 Act provides a comprehensive regulatory framework for the use of derivatives by funds and imposes requirements and restrictions on funds using derivatives. Rule 18f‑4 could have an adverse impact on the fund’s performance and its ability to implement its investment strategies and may increase

costs related to the fund’s use of derivatives. The rule may affect the availability, liquidity or performance of derivatives, and may not effectively limit the risk of loss from derivatives.

Leveraging [Member]

Prospectus [Line Items]

Risk [Text Block]

Leveraging – To the extent that the fund borrows or uses derivatives or other investments, such as ETFs, that have embedded leverage, your investment may be subject to heightened volatility, risk of loss and costs. Other risks also will be compounded because leverage generally magnifies the effect of a change in the value of an asset and creates a risk of loss of value on a larger pool of assets than the fund would otherwise have. Use of leverage may result in the loss of a substantial amount, and possibly all, of the fund’s assets. The fund also may have to sell assets at inopportune times to satisfy its obligations.

Sustainability and or Environmental Social and Governance ESG Considerations [Member]

Prospectus [Line Items]

Risk [Text Block]

Sustainability and/or Environmental, Social and Governance (“ESG”) Considerations – The sub‑adviser considers sustainability and/or ESG factors that it deems relevant, along with other factors and analysis, when sub‑advising the fund. This usage of sustainability and/or ESG factors or criteria is sometimes referred to as “ESG integration.” The sub‑adviser may consider sustainability and/or ESG factors on a meaningful portion of the fund’s investments. The sub‑adviser may give little or no weight to sustainability and/or ESG factors for certain investments, and not every sustainability and/or ESG factor may be identified or evaluated for every investment. Consideration of sustainability and/or ESG factors is not determinative in the sub‑adviser’s investment process, and the sub‑adviser may conclude that other attributes of an investment outweigh sustainability and/or ESG considerations when making investment decisions. Applying sustainability and/or ESG factors as part of the fund’s security selection process may impact the sub‑adviser’s investment decisions and may affect the fund’s exposure to risks associated with certain issuers, asset classes, industries and sectors. Sustainability and ESG factors are not uniformly defined and applying such factors involves subjective assessments. Sustainability and ESG ratings and assessments of issuers can vary across investment advisers (including sub‑advisers) and third party data providers and may change over time. Sustainability and ESG factors can be difficult to apply consistently across issuers, regions, countries, industries and sectors. The application of these factors could negatively impact the fund’s performance. Sustainability and ESG information from issuers and from third party data providers may be incomplete, delayed, inaccurate or unavailable, which could lead to an incorrect assessment of a company’s sustainability or ESG characteristics. Regulation of sustainability and ESG investing in the U.S. and abroad is evolving. Regulatory changes with respect to ESG integration could impact the sub‑adviser’s ability to consider sustainability and/or ESG criteria as part of its investment process.

Underlying Exchange Traded Funds [Member]

Prospectus [Line Items]

Risk [Text Block]

Underlying Exchange-Traded Funds – To the extent the fund invests its assets in underlying ETFs, its ability to achieve its investment objective will depend in part on the performance of the underlying ETFs in which it invests. Investing in underlying ETFs subjects the fund to the risks of investing in the underlying securities or assets held by those ETFs. Each of the underlying ETFs in which the fund may invest has its own investment risks, and those risks can affect the value of the underlying ETFs’ shares and therefore the value of the fund’s investments. There can be no assurance that the investment objective of any underlying ETF will be achieved. To the extent that the fund invests more of its assets in one underlying ETF than in another, the fund will have greater exposure to the risks of that underlying ETF. In addition, the fund will bear a pro rata portion of the operating expenses of the underlying ETFs in which it invests.

Counterparty [Member]

Prospectus [Line Items]

Risk [Text Block]

Counterparty – The fund could lose money if the counterparties to derivatives, repurchase agreements and/or other financial contracts entered into for the fund do not fulfill their contractual obligations. In addition, the fund may incur costs and may be hindered or delayed in enforcing its rights against a counterparty. These risks may be greater to the extent the fund has more contractual exposure to a counterparty.