Investment Risks - Global & International Equity Mutual Fund - Nomura Emerging Markets Fund	Nov. 30, 2025
Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors.
Market Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.
Foreign and Emerging Markets Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Foreign and emerging markets risk — The risk that investments in foreign securities (particularly those of issuers in emerging markets) may be adversely affected by political instability; changes in currency exchange rates; inefficient markets and higher transaction costs; foreign economic conditions; the imposition of economic or trade sanctions; or inadequate or different regulatory and accounting standards. Securities of issuers in emerging markets may be subject to greater risks than securities of issuers in more developed foreign markets because, among other things, emerging markets may have less stable political and economic environments. In addition, there often is substantially less publicly available information about issuers and such information tends to be of a lesser quality. Economic markets and structures tend to be less mature and diverse and the securities markets may also be smaller, less liquid, and subject to greater price volatility.
Geographic Focus Risk
Prospectus [Line Items]
Risk [Text Block]	Geographic focus risk — The risk that local political and economic conditions could adversely affect the performance of a fund investing a substantial amount of assets in securities of issuers located in a single country or a limited number of countries. Adverse events in any one country within the Asia-Pacific region may impact the other countries in the region or Asia as a whole. As a result, adverse events in the region will generally have a greater effect on the Fund than if the Fund were more geographically diversified, which could result in greater volatility in the Fund’s net asset value and losses. Markets in the greater China region can experience significant volatility due to social, economic, regulatory, and political uncertainties.
Industry and sector risk
Prospectus [Line Items]
Risk [Text Block]	Industry and sector risk — The risk that the value of securities in a particular industry or sector (such as information technology) will decline because of changing expectations for the performance of that industry or sector.
Company size risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Company size risk — The risk that investments in small- and/or medium-sized companies may be more volatile than those of larger companies because of limited financial resources or dependence on narrow product lines.
Focused portfolio risk
Prospectus [Line Items]
Risk [Text Block]	Focused portfolio risk — Increases in the value of certain investments made by the Fund may result in the Fund holding a substantial percentage of its assets in a limited number of securities, as is the case as of the date of this prospectus. As a result, the Fund may be exposed to greater risk and volatility than funds with a more diversified portfolio. A decline in the value of any significant holding could have a material adverse effect on the Fund’s net asset value and performance. This risk is further magnified if two or more of the Fund’s large holdings are closely correlated, as is the case as of the date of this prospectus. In such cases, a single negative event or market development could cause simultaneous declines in multiple holdings, leading to greater losses for the Fund and its shareholders.
Limited number of securities risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Limited number of securities risk — The possibility that a single security’s increase or decrease in value may have a greater impact on a fund’s value and total return because the fund may hold larger positions in fewer securities than other funds. In addition, a fund that holds a limited number of securities may be more volatile than those funds that hold a greater number of securities.
Liquidity Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.
Government and Regulatory Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance.
Growth stock risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Growth stock risk — Growth stocks reflect projections of future earnings and revenue. These prices may rise or fall dramatically depending on whether those projections are met. These companies’ stock prices may be more volatile, particularly over the short term.
Active management and selection risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.

Investment Risks - Global & International Equity Mutual Fund - Nomura Emerging Markets Fund

Nov. 30, 2025

Investing in any mutual fund involves the risk that you may lose part or all of the money you invest. Over time, the value of your investment in the Fund will increase and decrease according to changes in the value of the securities in the Fund’s portfolio. An investment in the Fund may not be appropriate for all investors.

Prospectus [Line Items]

Risk [Text Block]

Market risk — The risk that all or a majority of the securities in a certain market — such as the stock or bond market — will decline in value because of factors such as adverse political or economic conditions, future expectations, investor confidence, or heavy institutional selling.

Foreign and Emerging Markets Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Foreign and emerging markets risk — The risk that investments in foreign securities (particularly those of issuers in emerging markets) may be adversely affected by political instability; changes in currency exchange rates; inefficient markets and higher transaction costs; foreign economic conditions; the imposition of economic or trade sanctions; or inadequate or different regulatory and accounting standards. Securities of issuers in emerging markets may be subject to greater risks than securities of issuers in more developed foreign markets because, among other things, emerging markets may have less stable political and economic environments. In addition, there often is substantially less publicly available information about issuers and such information tends to be of a lesser quality. Economic markets and structures tend to be less mature and diverse and the securities markets may also be smaller, less liquid, and subject to greater price volatility.

Geographic Focus Risk

Prospectus [Line Items]

Risk [Text Block]

Geographic focus risk — The risk that local political and economic conditions could adversely affect the performance of a fund investing a substantial amount of assets in securities of issuers located in a single country or a limited number of countries. Adverse events in any one country within the Asia-Pacific region may impact the other countries in the region or Asia as a whole. As a result, adverse events in the region will generally have a greater effect on the Fund than if the Fund were more geographically diversified, which could result in greater volatility in the Fund’s net asset value and losses. Markets in the greater China region can experience significant volatility due to social, economic, regulatory, and political uncertainties.

Industry and sector risk

Prospectus [Line Items]

Risk [Text Block]

Industry and sector risk — The risk that the value of securities in a particular industry or sector (such as information technology) will decline because of changing expectations for the performance of that industry or sector.

Company size risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Company size risk — The risk that investments in small- and/or medium-sized companies may be more volatile than those of larger companies because of limited financial resources or dependence on narrow product lines.

Focused portfolio risk

Prospectus [Line Items]

Risk [Text Block]

Focused portfolio risk — Increases in the value of certain investments made by the Fund may result in the Fund holding a substantial percentage of its assets in a limited number of securities, as is the case as of the date of this prospectus. As a result, the Fund may be exposed to greater risk and volatility than funds with a more diversified portfolio. A decline in the value of any significant holding could have a material adverse effect on the Fund’s net asset value and performance. This risk is further magnified if two or more of the Fund’s large holdings are closely correlated, as is the case as of the date of this prospectus. In such cases, a single negative event or market development could cause simultaneous declines in multiple holdings, leading to greater losses for the Fund and its shareholders.

Limited number of securities risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Limited number of securities risk — The possibility that a single security’s increase or decrease in value may have a greater impact on a fund’s value and total return because the fund may hold larger positions in fewer securities than other funds. In addition, a fund that holds a limited number of securities may be more volatile than those funds that hold a greater number of securities.

Liquidity Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Liquidity risk — The possibility that investments cannot be readily sold within seven calendar days at approximately the price at which a fund has valued them.

Government and Regulatory Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Government and regulatory risk — The risk that governments or regulatory authorities may take actions that could adversely affect various sectors of the securities markets and affect fund performance.

Growth stock risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Growth stock risk — Growth stocks reflect projections of future earnings and revenue. These prices may rise or fall dramatically depending on whether those projections are met. These companies’ stock prices may be more volatile, particularly over the short term.

Active management and selection risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Active management and selection risk — The risk that the securities selected by a fund’s management will underperform the markets, the relevant indices, or the securities selected by other funds with similar investment objectives and investment strategies. The securities and sectors selected may vary from the securities and sectors included in the relevant index.