v3.25.4
Investment Risks
Jan. 28, 2026
INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] You could lose money on your investment in the Fund, just as you could with other investments.
INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Risk Not Insured [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk — The risk that the market value of a security may move up and down, sometimes rapidly and unpredictably. Market risk may affect a single issuer, an industry, a sector or the equity or bond market as a whole. Equity markets may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Foreign Investment/Emerging Markets Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Investment/Emerging Markets Risk — The risk that non-U.S. securities may be subject to additional risks due to, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments. These additional risks may be heightened with respect to emerging market countries because political turmoil and rapid changes in economic conditions are more likely to occur in these countries. Investments in emerging markets are subject to the added risk that information in emerging market investments may be unreliable or outdated due to differences in regulatory, accounting or auditing and financial record keeping standards, or because less information about emerging market investments is publicly available. In addition, the rights and remedies associated with emerging market investments may be different than investments in developed markets. A lack of reliable information, rights and remedies increase the risks of investing in emerging markets in comparison to more developed markets. In addition, periodic U.S. Government restrictions on investments in

issuers from certain foreign countries may require the Fund to sell such investments at inopportune times, which could result in losses to the Fund.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk — The risk that developed international and emerging markets equity securities may underperform other segments of the equity markets or the equity markets as a whole.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Currency Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Currency Risk — As a result of the Fund's investments in securities denominated in, and/or receiving revenues in, foreign currencies, the Fund will be subject to currency risk. Currency risk is the risk that foreign currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency hedged. In either event, the dollar value of an investment in the Fund would be adversely affected. Currency exchange rates may fluctuate in response to, among other things, changes in interest rates, intervention (or failure to intervene) by U.S. or foreign governments, central banks or supranational entities, or by the imposition of currency controls or other political developments in the United States or abroad.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Small and Medium Capitalization Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Small and Medium Capitalization Risk — The risk that small and medium capitalization companies in which the Fund may invest may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, small and medium capitalization companies may have limited product lines, markets and financial resources and may depend upon a relatively small management group. Therefore, small capitalization and medium capitalization stocks may be more volatile than those of larger companies. Small capitalization and medium capitalization stocks may be traded over-the-counter (OTC). OTC stocks may trade less frequently and in smaller volume than exchange listed stocks and may have more price volatility than that of exchange-listed stocks.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Depositary Receipts Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Depositary Receipts Risk — Depositary receipts, such as American Depositary Receipts (ADRs), are certificates evidencing ownership of shares of a foreign issuer that are issued by depositary banks and generally trade on an established market. Depositary receipts are subject to many of the risks associated with investing directly in foreign securities, including, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Preferred Stock Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Preferred Stock Risk — Preferred stock represents an equity or ownership interest in an issuer that pays dividends at a specified rate and that has precedence over common stock in the payment of dividends. In the event an issuer is liquidated or declares bankruptcy, the claims of owners of bonds take precedence over the claims of those who own preferred and common stock.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Participation Notes (P-Notes) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Participation Notes (P-Notes) Risk — P-Notes are participation interest notes that are issued by banks or broker-dealers and are designed to offer a return linked to a particular underlying equity, debt, currency or market. Investments in P-Notes involve the same risks associated with a direct investment in the underlying foreign companies or foreign securities markets that they seek to replicate. However, there can be no assurance that the trading price of P-Notes will equal the underlying value of the foreign companies or foreign securities markets that they seek to replicate.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Warrants Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Warrants Risk — Warrants are instruments that entitle the holder to buy an equity security at a specific price for a specific period of time. Warrants may be more speculative than other types of investments. The price of a warrant may be more volatile than the price of its underlying security, and a warrant may offer greater potential for capital appreciation as well as capital loss. A warrant ceases to have value if it is not exercised prior to its expiration date.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Derivatives Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Derivatives Risk — The Fund's use of futures contracts, forward contracts, options and swaps is subject to market risk, leverage risk, correlation risk and liquidity risk. Market risk is described above, and leverage risk and liquidity risk are described below. Many OTC derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. The Fund's use of forward contracts and swap agreements is also subject to credit risk and valuation risk. Credit risk is described below. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of the above risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Long/Short Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Long/Short Risk — The Fund seeks long exposure to certain financial instruments and short exposure to certain other financial instruments. There is no guarantee that the returns on the Fund's long or short positions will produce positive returns and the Fund could lose money if either or both the Fund's long and short positions produce negative returns.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Credit Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Leverage Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Leverage Risk — The Fund's use of derivatives may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Liquidity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like. The Fund may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

INTERNATIONAL EQUITY FUND - Class F Prospectus | SIT INTERNATIONAL EQUITY FUND | Exchange-Traded Funds (ETFs) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Exchange-Traded Funds (ETFs) Risk — The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio securities. When the Fund invests in an ETF, in addition to directly bearing the expenses associated with its own operations, it will bear a pro rata portion of the ETF's expenses.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] You could lose money on your investment in the Fund, just as you could with other investments.
EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Risk Not Insured [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk — The risk that the market value of a security may move up and down, sometimes rapidly and unpredictably. Market risk may affect a single issuer, an industry, a sector or the equity or bond market as a whole. Equity markets may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Foreign Investment/Emerging Markets Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Investment/Emerging Markets Risk — The risk that non-U.S. securities may be subject to additional risks due to, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments. These additional risks may be heightened with respect to emerging market countries because political turmoil and rapid changes in economic conditions are more likely to occur in these countries. Investments in emerging markets are subject to the added risk that information in emerging market investments may be unreliable or outdated due to differences in regulatory, accounting or auditing and financial record keeping standards, or because less information about emerging market investments is publicly available. In addition, the rights and remedies associated with emerging market investments may be different than investments in developed markets. A lack of reliable information, rights and remedies increase the risks of investing in emerging markets in comparison to more developed markets. In addition, periodic U.S. Government restrictions on investments in

issuers from certain foreign countries may require the Fund to sell such investments at inopportune times, which could result in losses to the Fund.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Country Concentration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Country Concentration Risk — The Fund's concentration of its assets in issuers located in a single country or a limited number of countries will increase the impact of, and potential losses associated with, the risks set forth in the Foreign Investment/Emerging Markets Risk.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Risk of Investing in China [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Risk of Investing in China — Because China is an emerging market that may be subject to considerable government intervention and varying degrees of economic, political and social instability, such investments may be subject to greater risk of stock market, interest rate, and currency fluctuations, as well as inflation. In addition, periodic U.S. Government restrictions on investments in Chinese companies may require the Fund to sell such investments at inopportune times, which could result in losses to the Fund.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk — The risk that emerging market equity securities may underperform other segments of the equity markets or the equity markets as a whole.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Currency Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Currency Risk — As a result of the Fund's investments in securities denominated in, and/or receiving revenues in, foreign currencies, the Fund will be subject to currency risk. Currency risk is the risk that foreign currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency hedged. In either event, the dollar value of an investment in the Fund would be adversely affected. Currency exchange rates may fluctuate in response to, among other things, changes in interest rates, intervention (or failure to intervene) by U.S. or foreign governments, central banks or supranational entities, or by the imposition of currency controls or other political developments in the United States or abroad.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Small and Medium Capitalization Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Small and Medium Capitalization Risk — The risk that small and medium capitalization companies in which the Fund may invest may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, small and medium capitalization companies may have limited product lines, markets and financial resources and may depend upon a relatively small management group. Therefore, small capitalization and medium capitalization stocks may be more volatile than those of larger companies. Small capitalization and medium capitalization stocks may be traded over-the-counter (OTC). OTC stocks may trade less frequently and in smaller volume than exchange listed stocks and may have more price volatility than that of exchange-listed stocks.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Depositary Receipts Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Depositary Receipts Risk — Depositary receipts, such as American Depositary Receipts (ADRs), are certificates evidencing ownership of shares of a foreign issuer that are issued by depositary banks and generally trade on an established market. Depositary receipts are subject to many of the risks associated with investing directly in foreign securities, including, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Preferred Stock Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Preferred Stock Risk — Preferred stock represents an equity or ownership interest in an issuer that pays dividends at a specified rate and that has precedence over common stock in the payment of dividends. In the event an issuer is liquidated or declares bankruptcy, the claims of owners of bonds take precedence over the claims of those who own preferred and common stock.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Participation Notes (P-Notes) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Participation Notes (P-Notes) Risk — P-Notes are participation interest notes that are issued by banks or broker-dealers and are designed to offer a return linked to a particular underlying equity, debt, currency or market. Investments in P-Notes involve the same risks associated with a direct investment in the underlying foreign companies or foreign securities markets that they seek to replicate. However, there can be no

assurance that the trading price of P-Notes will equal the underlying value of the foreign companies or foreign securities markets that they seek to replicate.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Warrants Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Warrants Risk — Warrants are instruments that entitle the holder to buy an equity security at a specific price for a specific period of time. Warrants may be more speculative than other types of investments. The price of a warrant may be more volatile than the price of its underlying security, and a warrant may offer greater potential for capital appreciation as well as capital loss. A warrant ceases to have value if it is not exercised prior to its expiration date.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Derivatives Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Derivatives Risk — The Fund's use of futures contracts, forward contracts, options and swaps is subject to market risk, leverage risk, correlation risk and liquidity risk. Market risk is described above, and leverage risk and liquidity risk are described below. Many OTC derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. The Fund's use of forward contracts and swap agreements is also subject to credit risk and valuation risk. Credit risk is described below. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of the above risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Credit Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Leverage Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Leverage Risk — The Fund's use of derivatives may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Liquidity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like. The Fund may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

EMERGING MARKETS EQUITY FUND - Class F Prospectus | SIT EMERGING MARKETS EQUITY FUND | Exchange-Traded Funds (ETFs) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Exchange-Traded Funds (ETFs) Risk — The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio securities. When the Fund invests in an ETF, in addition to directly bearing the expenses associated with its own operations, it will bear a pro rata portion of the ETF's expenses.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] You could lose money on your investment in the Fund, just as you could with other investments.
INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Risk Not Insured [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could further decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Foreign Investment/Emerging Markets Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Investment/Emerging Markets Risk — The risk that non-U.S. securities may be subject to additional risks due to, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments. These additional risks may be heightened with respect to emerging market countries because political turmoil and rapid changes in economic conditions are more likely to occur in these countries. Investments in emerging markets are subject to the added risk that information in emerging market investments may be unreliable or outdated due to differences in regulatory, accounting or auditing and financial record keeping standards, or because less information about emerging market investments is publicly available. In addition, the rights and remedies associated with emerging market investments may be different than investments in developed markets. A lack of reliable information, rights and remedies increase the risks of investing in emerging markets in comparison to more developed markets. In addition, periodic U.S. Government restrictions on investments in issuers from certain foreign countries may require the Fund to sell such investments at inopportune times, which could result in losses to the Fund.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk — The risk that developed international fixed income securities may underperform other segments of the fixed income markets or the fixed income markets as a whole.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Non-Diversified Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Non-Diversified Risk — The Fund is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Fund may be more susceptible to a single adverse economic or political occurrence affecting one or more of these issuers and may experience increased volatility due to its investments in those securities. However, the Fund intends to satisfy the asset diversification requirements under the Internal Revenue Code of 1986, as amended (the Code) for classification as a regulated investment company (RIC).

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Interest Rate Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Interest Rate Risk — The risk that a change in interest rates will cause a fall in the value of fixed income securities, including U.S. Government securities, in which the Fund invests. Generally, the value of the Fund's fixed income securities will vary inversely with the direction of prevailing interest rates. Changing interest rates may have unpredictable effects on the markets and may affect the value and liquidity of instruments held by the Fund. Although U.S. Government securities are considered to be among the safest investments, they are not guaranteed against price movements due to changing interest rates.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Duration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Duration Risk — The longer-term securities in which the Fund may invest tend to be more volatile than shorter-term securities. A portfolio with a longer average portfolio duration is more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Corporate Fixed Income Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Corporate Fixed Income Securities Risk — Corporate fixed income securities respond to economic developments, especially changes in interest rates, as well as perceptions of the creditworthiness and business prospects of individual issuers.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Currency Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Currency Risk — As a result of the Fund's investments in active positions in currencies and securities or other investments denominated in, and/or receiving revenues in, foreign currencies and the Fund's active management of its currency exposures, the Fund will be subject to currency risk. Currency risk is the risk that foreign currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency hedged. In either event, the dollar value of an investment in the Fund would be adversely affected. Due to the Fund's active positions in currencies, it will be subject to the risk that currency exchange rates may fluctuate in response to, among other things, changes in interest rates, intervention (or failure to intervene) by U.S. or foreign governments, central banks or supranational entities, or by the imposition of currency controls or other political developments in the United States or abroad.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Asset-Backed Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Asset-Backed Securities Risk — Payment of principal and interest on asset-backed securities is dependent largely on the cash flows generated by the assets backing the securities. Securitization trusts generally do not have any assets or sources of funds other than the receivables and related property they own, and asset-backed securities are generally not insured or guaranteed by the related sponsor or any other entity.

Asset-backed securities may be more illiquid than more conventional types of fixed-income securities that the Fund acquires.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Below Investment Grade Securities (Junk Bonds) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Below Investment Grade Securities (Junk Bonds) Risk — Fixed income securities rated below investment grade (junk bonds) involve greater risks of default or downgrade and are generally more volatile than investment grade securities because the prospect for repayment of principal and interest of many of these securities is speculative. Because these securities typically offer a higher rate of return to compensate investors for these risks, they are sometimes referred to as "high yield bonds," but there is no guarantee that an investment in these securities will result in a high rate of return.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Derivatives Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Derivatives Risk — The Fund's use of swaps, futures and forward contracts is subject to market risk, leverage risk, correlation risk and liquidity risk. Market risk is described above, and leverage risk and liquidity risk are described below. Many over-the-counter (OTC) derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. The Fund's use of swaps and forward contracts is also subject to credit risk and valuation risk. Credit risk is described above. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of the above risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Credit Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Foreign Sovereign Debt Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Sovereign Debt Securities Risk — The risks that: (i) the governmental entity that controls the repayment of sovereign debt may not be willing or able to repay the principal and/or interest when it becomes due because of factors such as debt service burden, political constraints, cash flow problems and other national economic factors; (ii) governments may default on their debt securities, which may require holders of such securities to participate in debt rescheduling or additional lending to defaulting governments; and (iii) there is no bankruptcy proceeding by which defaulted sovereign debt may be collected in whole or in part.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Leverage Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Leverage Risk — The Fund's use of derivatives may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Liquidity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like. The Fund may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | U.S. Government Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

U.S. Government Securities Risk — Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources. No assurance can be given that the U.S. Government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Bank Loans Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Bank Loans Risk — With respect to bank loans, the Fund will assume the credit risk of both the borrower and the lender that is selling the participation. The Fund may also have difficulty disposing of bank loans because, in certain cases, the market for such instruments is not highly liquid.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Mortgage-Backed Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Mortgage-Backed Securities Risk — Mortgage-backed securities are affected significantly by the rate of prepayments and modifications of the mortgage loans backing those securities, as well as by other factors such as borrower defaults, delinquencies, realized or liquidation losses and other shortfalls. Mortgage-backed securities are particularly sensitive to prepayment risk, which is described below, given that the term to maturity for mortgage loans is generally substantially longer than the expected lives of those securities; however, the timing and amount of prepayments cannot be accurately predicted. The timing of changes in the rate of prepayments of the mortgage loans may significantly affect the Fund's actual yield to maturity on any mortgage-backed securities, even if the average rate of principal payments is consistent with the Fund's expectation. Along with prepayment risk, mortgage-backed securities are significantly affected by interest rate risk, which is described above. In a low interest rate environment, mortgage loan prepayments would generally be expected to increase due to factors such as refinancing and loan modifications at lower interest rates. In contrast, if prevailing interest rates rise, prepayments of mortgage loans would generally be expected to decline and therefore extend the weighted average lives of mortgage-backed securities held or acquired by the Fund.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Extension Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Prepayment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Prepayment Risk — The risk that in a declining interest rate environment, fixed income securities with stated interest rates may have the principal paid earlier than expected, requiring the Fund to invest the proceeds at generally lower interest rates.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Exchange-Traded Funds (ETFs) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Exchange-Traded Funds (ETFs) Risk — The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio securities. When the Fund invests in an ETF, in addition to directly bearing the expenses associated with its own operations, it will bear a pro rata portion of the ETF's expenses.

INTERNATIONAL FIXED INCOME FUND - Class F Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Portfolio Turnover Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Portfolio Turnover Risk — Due to its investment strategy, the Fund may buy and sell securities frequently. This may result in higher transaction costs and additional capital gains tax liabilities, which may affect the Fund's performance.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] You could lose money on your investment in the Fund, just as you could with other investments.
EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Risk Not Insured [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could further decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Foreign Investment/Emerging Markets Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Investment/Emerging Markets Risk — The risk that non-U.S. securities may be subject to additional risks due to, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments. These additional risks may be heightened with respect to emerging market countries because political turmoil and rapid changes in economic conditions are more likely to occur in these countries. Investments in emerging markets are subject to the added risk that information in emerging market investments may be unreliable or outdated due to differences in regulatory, accounting or auditing and financial record keeping standards, or because less information about emerging market investments is publicly available. In addition, the rights and remedies associated with emerging market investments may be different than investments in developed markets. A lack of reliable information, rights and remedies increase the risks of investing in emerging markets in comparison to more developed markets. In addition, periodic U.S. Government restrictions on investments in issuers from certain foreign countries may require the Fund to sell such investments at inopportune times, which could result in losses to the Fund.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk — The risk that emerging market debt securities may underperform other segments of the fixed income markets or the fixed income markets as a whole.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Non-Diversified Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Non-Diversified Risk — The Fund is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Fund may be more susceptible to a single adverse economic or political occurrence affecting one or more of these issuers and may experience increased volatility due to its investments in those securities. However, the Fund intends to satisfy the asset diversification requirements under the Internal Revenue Code of 1986, as amended (the Code) for classification as a regulated investment company (RIC).

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Interest Rate Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Interest Rate Risk — The risk that a change in interest rates will cause a fall in the value of fixed income securities, including U.S. Government securities, in which the Fund invests. Generally, the value of the Fund's fixed income securities will vary inversely with the direction of prevailing interest rates. Changing interest rates may have unpredictable effects on the markets and may affect the value and liquidity of instruments held by the Fund. Although U.S. Government securities are considered to be among the safest investments, they are not guaranteed against price movements due to changing interest rates.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Duration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Duration Risk — The longer-term securities in which the Fund may invest tend to be more volatile than shorter-term securities. A portfolio with a longer average portfolio duration is more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Corporate Fixed Income Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Corporate Fixed Income Securities Risk — Corporate fixed income securities respond to economic developments, especially changes in interest rates, as well as perceptions of the creditworthiness and business prospects of individual issuers.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Currency Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Currency Risk — As a result of the Fund's investments in active positions in currencies and securities or other investments denominated in, and/or receiving revenues in, foreign currencies and the Fund's active management of its currency exposures, the Fund will be subject to currency risk. Currency risk is the risk that foreign currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency hedged. In either event, the dollar value of an investment in the Fund would be adversely affected. Due to the Fund's active positions in currencies, it will be subject to the risk that currency exchange rates may fluctuate in response to, among other things, changes in

interest rates, intervention (or failure to intervene) by U.S. or foreign governments, central banks or supranational entities, or by the imposition of currency controls or other political developments in the United States or abroad.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Below Investment Grade Securities (Junk Bonds) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Below Investment Grade Securities (Junk Bonds) Risk — Fixed income securities rated below investment grade (junk bonds) involve greater risks of default or downgrade and are generally more volatile than investment grade securities because the prospect for repayment of principal and interest of many of these securities is speculative. Because these securities typically offer a higher rate of return to compensate investors for these risks, they are sometimes referred to as "high yield bonds," but there is no guarantee that an investment in these securities will result in a high rate of return.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Derivatives Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Derivatives Risk — The Fund's use of futures contracts, forward contracts, options, swaps and credit-linked notes is subject to market risk, leverage risk, correlation risk and liquidity risk. Market risk and liquidity risk

are described above, and leverage risk is described below. Many over-the-counter (OTC) derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. The Fund's use of forward contracts, options, credit-linked notes and swap agreements is also subject to credit risk and valuation risk. Credit risk is described above. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of the above risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Credit Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Foreign Sovereign Debt Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Sovereign Debt Securities Risk — The risks that (i) the governmental entity that controls the repayment of sovereign debt may not be willing or able to repay the principal and/or interest when it becomes due because of factors such as debt service burden, political constraints, cash flow problems and other national economic factors; (ii) governments may default on their debt securities, which may require holders of such securities to participate in debt rescheduling or additional lending to defaulting governments; and (iii) there is no bankruptcy proceeding by which defaulted sovereign debt may be collected in whole or in part.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Leverage Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Leverage Risk — The Fund's use of derivatives may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Structured Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Structured Securities Risk — The payment and credit qualities of structured securities derive from their underlying assets, and they may behave in ways not anticipated by the Fund, or they may not receive tax, accounting or regulatory treatment anticipated by the Fund.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Liquidity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like. The Fund may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Extension Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Prepayment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Prepayment Risk — The risk that in a declining interest rate environment, fixed income securities with stated interest rates may have the principal paid earlier than expected, requiring the Fund to invest the proceeds at generally lower interest rates.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Exchange-Traded Funds (ETFs) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Exchange-Traded Funds (ETFs) Risk — The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio securities. When the Fund invests in an ETF, in addition to directly bearing the expenses associated with its own operations, it will bear a pro rata portion of the ETF's expenses.

EMERGING MARKETS DEBT FUND - Class F Prospectus | SIT EMERGING MARKETS DEBT FUND | Portfolio Turnover Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Portfolio Turnover Risk — Due to its investment strategy, the Fund may buy and sell securities frequently. This may result in higher transaction costs and additional capital gains tax liabilities, which may affect the Fund's performance.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] You could lose money on your investment in the Fund, just as you could with other investments.
INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Risk Not Insured [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk — The risk that the market value of a security may move up and down, sometimes rapidly and unpredictably. Market risk may affect a single issuer, an industry, a sector or the equity or bond market as a whole. Equity markets may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Foreign Investment/Emerging Markets Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Investment/Emerging Markets Risk — The risk that non-U.S. securities may be subject to additional risks due to, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments. These additional risks may be heightened with respect to emerging market countries because political turmoil and rapid changes in economic conditions are more likely to occur in these countries. Investments in emerging markets are subject to the added risk that information in emerging market investments may be unreliable or outdated due to differences in regulatory, accounting or auditing and financial record keeping standards, or because less information about emerging market investments is publicly available. In addition, the rights and remedies associated with emerging market investments may be different than investments in developed markets. A lack of reliable information, rights and remedies increase the risks of investing in emerging markets in comparison to more developed markets. In addition, periodic U.S. Government restrictions on investments in

issuers from certain foreign countries may require the Fund to sell such investments at inopportune times, which could result in losses to the Fund.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk — The risk that developed international and emerging markets equity securities may underperform other segments of the equity markets or the equity markets as a whole.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Currency Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Currency Risk — As a result of the Fund's investments in securities denominated in, and/or receiving revenues in, foreign currencies, the Fund will be subject to currency risk. Currency risk is the risk that foreign currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency hedged. In either event, the dollar value of an investment in the Fund would be adversely affected. Currency exchange rates may fluctuate in response to, among other things, changes in interest rates, intervention (or failure to intervene) by U.S. or foreign governments, central banks or supranational entities, or by the imposition of currency controls or other political developments in the United States or abroad.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Small and Medium Capitalization Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Small and Medium Capitalization Risk — The risk that small and medium capitalization companies in which the Fund may invest may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, small and medium capitalization companies may have limited product lines, markets and financial resources and may depend upon a relatively small management group. Therefore, small capitalization and medium capitalization stocks may be more volatile than those of larger companies. Small capitalization and medium capitalization stocks may be traded over-the-counter (OTC). OTC stocks may trade less frequently and in smaller volume than exchange listed stocks and may have more price volatility than that of exchange-listed stocks.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Depositary Receipts Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Depositary Receipts Risk — Depositary receipts, such as American Depositary Receipts (ADRs), are certificates evidencing ownership of shares of a foreign issuer that are issued by depositary banks and generally trade on an established market. Depositary receipts are subject to many of the risks associated with investing directly in foreign securities, including, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Preferred Stock Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Preferred Stock Risk — Preferred stock represents an equity or ownership interest in an issuer that pays dividends at a specified rate and that has precedence over common stock in the payment of dividends. In the event an issuer is liquidated or declares bankruptcy, the claims of owners of bonds take precedence over the claims of those who own preferred and common stock.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Participation Notes (P-Notes) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Participation Notes (P-Notes) Risk — P-Notes are participation interest notes that are issued by banks or broker-dealers and are designed to offer a return linked to a particular underlying equity, debt, currency or market. Investments in P-Notes involve the same risks associated with a direct investment in the underlying foreign companies or foreign securities markets that they seek to replicate. However, there can be no assurance that the trading price of P-Notes will equal the underlying value of the foreign companies or foreign securities markets that they seek to replicate.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Warrants Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Warrants Risk — Warrants are instruments that entitle the holder to buy an equity security at a specific price for a specific period of time. Warrants may be more speculative than other types of investments. The price of a warrant may be more volatile than the price of its underlying security, and a warrant may offer greater potential for capital appreciation as well as capital loss. A warrant ceases to have value if it is not exercised prior to its expiration date.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Derivatives Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Derivatives Risk — The Fund's use of futures contracts, forward contracts, options and swaps is subject to market risk, leverage risk, correlation risk and liquidity risk. Market risk is described above, and leverage risk and liquidity risk are described below. Many OTC derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. The Fund's use of forward contracts and swap agreements is also subject to credit risk and valuation risk. Credit risk is described below. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of the above risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Long/Short Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Long/Short Risk — The Fund seeks long exposure to certain financial instruments and short exposure to certain other financial instruments. There is no guarantee that the returns on the Fund's long or short positions will produce positive returns and the Fund could lose money if either or both the Fund's long and short positions produce negative returns.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Credit Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Leverage Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Leverage Risk — The Fund's use of derivatives may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Liquidity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like. The Fund may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

INTERNATIONAL EQUITY FUND - Class I Prospectus | SIT INTERNATIONAL EQUITY FUND | Exchange-Traded Funds (ETFs) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Exchange-Traded Funds (ETFs) Risk — The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio securities. When the Fund invests in an ETF, in addition to directly bearing the expenses associated with its own operations, it will bear a pro rata portion of the ETF's expenses.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] You could lose money on your investment in the Fund, just as you could with other investments.
INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Risk Not Insured [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk — The risk that the market value of a security may move up and down, sometimes rapidly and unpredictably. Market risk may affect a single issuer, an industry, a sector or the equity or bond market as a whole. Equity markets may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Foreign Investment/Emerging Markets Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Investment/Emerging Markets Risk — The risk that non-U.S. securities may be subject to additional risks due to, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments. These additional risks may be heightened with respect to emerging market countries because political turmoil and rapid changes in economic conditions are more likely to occur in these countries. Investments in emerging markets are subject to the added risk that information in emerging market investments may be unreliable or outdated due to differences in regulatory, accounting or auditing and financial record keeping standards, or because less information about emerging market investments is publicly available. In addition, the rights and remedies associated with emerging market investments may be different than investments in developed markets. A lack of reliable information, rights and remedies increase the risks of investing in emerging markets in

comparison to more developed markets. In addition, periodic U.S. Government restrictions on investments in issuers from certain foreign countries may require the Fund to sell such investments at inopportune times, which could result in losses to the Fund.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk — The risk that developed international and emerging markets equity securities may underperform other segments of the equity markets or the equity markets as a whole.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Currency Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Currency Risk — As a result of the Fund's investments in securities denominated in, and/or receiving revenues in, foreign currencies, the Fund will be subject to currency risk. Currency risk is the risk that foreign currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency hedged. In either event, the dollar value of an investment in the Fund would be adversely affected. Currency exchange rates may fluctuate in response to, among other things, changes in interest rates, intervention (or failure to intervene) by U.S. or foreign governments, central banks or supranational entities, or by the imposition of currency controls or other political developments in the United States or abroad.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Small and Medium Capitalization Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Small and Medium Capitalization Risk — The risk that small and medium capitalization companies in which the Fund may invest may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, small and medium capitalization companies may have limited product lines, markets and financial resources and may depend upon a relatively small management group. Therefore, small capitalization and medium capitalization stocks may be more volatile than those of larger companies. Small capitalization and medium capitalization stocks may be traded over-the-counter (OTC). OTC stocks may trade less frequently and in smaller volume than exchange listed stocks and may have more price volatility than that of exchange-listed stocks.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Depositary Receipts Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Depositary Receipts Risk — Depositary receipts, such as American Depositary Receipts (ADRs), are certificates evidencing ownership of shares of a foreign issuer that are issued by depositary banks and generally trade on an established market. Depositary receipts are subject to many of the risks associated with investing directly in foreign securities, including, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Preferred Stock Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Preferred Stock Risk — Preferred stock represents an equity or ownership interest in an issuer that pays dividends at a specified rate and that has precedence over common stock in the payment of dividends. In the event an issuer is liquidated or declares bankruptcy, the claims of owners of bonds take precedence over the claims of those who own preferred and common stock.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Participation Notes (P-Notes) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Participation Notes (P-Notes) Risk — P-Notes are participation interest notes that are issued by banks or broker-dealers and are designed to offer a return linked to a particular underlying equity, debt, currency or market. Investments in P-Notes involve the same risks associated with a direct investment in the underlying foreign companies or foreign securities markets that they seek to replicate. However, there can be no assurance that the trading price of P-Notes will equal the underlying value of the foreign companies or foreign securities markets that they seek to replicate.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Warrants Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Warrants Risk — Warrants are instruments that entitle the holder to buy an equity security at a specific price for a specific period of time. Warrants may be more speculative than other types of investments. The price of a warrant may be more volatile than the price of its underlying security, and a warrant may offer greater potential for capital appreciation as well as capital loss. A warrant ceases to have value if it is not exercised prior to its expiration date.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Derivatives Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Derivatives Risk — The Fund's use of futures contracts, forward contracts, options and swaps is subject to market risk, leverage risk, correlation risk and liquidity risk. Market risk is described above, and leverage risk and liquidity risk are described below. Many OTC derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. The Fund's use of forward contracts and swap agreements is also subject to credit risk and valuation risk. Credit risk is described below. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of the above risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Long/Short Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Long/Short Risk — The Fund seeks long exposure to certain financial instruments and short exposure to certain other financial instruments. There is no guarantee that the returns on the Fund's long or short positions will produce positive returns and the Fund could lose money if either or both the Fund's long and short positions produce negative returns.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Credit Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Leverage Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Leverage Risk — The Fund's use of derivatives may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Liquidity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like. The Fund may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

INTERNATIONAL EQUITY FUND - Class Y Prospectus | SIT INTERNATIONAL EQUITY FUND | Exchange-Traded Funds (ETFs) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Exchange-Traded Funds (ETFs) Risk — The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio securities. When the Fund invests in an ETF, in addition to directly bearing the expenses associated with its own operations, it will bear a pro rata portion of the ETF's expenses.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] You could lose money on your investment in the Fund, just as you could with other investments.
EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Risk Not Insured [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk — The risk that the market value of a security may move up and down, sometimes rapidly and unpredictably. Market risk may affect a single issuer, an industry, a sector or the equity or bond market as a whole. Equity markets may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Foreign Investment/Emerging Markets Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Investment/Emerging Markets Risk — The risk that non-U.S. securities may be subject to additional risks due to, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments. These additional risks may be heightened with respect to emerging market countries because political turmoil and rapid changes in economic conditions are more likely to occur in these countries. Investments in emerging markets are subject to the added risk that information in emerging market investments may be unreliable or outdated due to differences in regulatory, accounting or auditing and financial record keeping standards, or because less information about emerging market investments is publicly available. In addition, the rights and remedies associated with emerging market investments may be different than investments in developed markets. A lack of reliable information, rights and remedies increase the risks of investing in emerging markets in comparison to more developed markets. In addition, periodic U.S. Government restrictions on investments in

issuers from certain foreign countries may require the Fund to sell such investments at inopportune times, which could result in losses to the Fund.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Country Concentration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Country Concentration Risk — The Fund's concentration of its assets in issuers located in a single country or a limited number of countries will increase the impact of, and potential losses associated with, the risks set forth in the Foreign Investment/Emerging Markets Risk.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Risk of Investing in China [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Risk of Investing in China — Because China is an emerging market that may be subject to considerable government intervention and varying degrees of economic, political and social instability, such investments may be subject to greater risk of stock market, interest rate, and currency fluctuations, as well as inflation. In addition, periodic U.S. Government restrictions on investments in Chinese companies may require the Fund to sell such investments at inopportune times, which could result in losses to the Fund.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk — The risk that emerging market equity securities may underperform other segments of the equity markets or the equity markets as a whole.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Currency Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Currency Risk — As a result of the Fund's investments in securities denominated in, and/or receiving revenues in, foreign currencies, the Fund will be subject to currency risk. Currency risk is the risk that foreign currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency hedged. In either event, the dollar value of an investment in the Fund would be adversely affected. Currency exchange rates may fluctuate in response to, among other things, changes in interest rates, intervention (or failure to intervene) by U.S. or foreign governments, central banks or supranational entities, or by the imposition of currency controls or other political developments in the United States or abroad.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Small and Medium Capitalization Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Small and Medium Capitalization Risk — The risk that small and medium capitalization companies in which the Fund may invest may be more vulnerable to adverse business or economic events than larger, more established companies. In particular, small and medium capitalization companies may have limited product lines, markets and financial resources and may depend upon a relatively small management group. Therefore, small capitalization and medium capitalization stocks may be more volatile than those of larger companies. Small capitalization and medium capitalization stocks may be traded over-the-counter (OTC). OTC stocks may trade less frequently and in smaller volume than exchange listed stocks and may have more price volatility than that of exchange-listed stocks.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Depositary Receipts Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Depositary Receipts Risk — Depositary receipts, such as American Depositary Receipts (ADRs), are certificates evidencing ownership of shares of a foreign issuer that are issued by depositary banks and generally trade on an established market. Depositary receipts are subject to many of the risks associated with investing directly in foreign securities, including, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Preferred Stock Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Preferred Stock Risk — Preferred stock represents an equity or ownership interest in an issuer that pays dividends at a specified rate and that has precedence over common stock in the payment of dividends. In the event an issuer is liquidated or declares bankruptcy, the claims of owners of bonds take precedence over the claims of those who own preferred and common stock.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Participation Notes (P-Notes) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Participation Notes (P-Notes) Risk — P-Notes are participation interest notes that are issued by banks or broker-dealers and are designed to offer a return linked to a particular underlying equity, debt, currency or market. Investments in P-Notes involve the same risks associated with a direct investment in the underlying foreign companies or foreign securities markets that they seek to replicate. However, there can be no

assurance that the trading price of P-Notes will equal the underlying value of the foreign companies or foreign securities markets that they seek to replicate.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Warrants Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Warrants Risk — Warrants are instruments that entitle the holder to buy an equity security at a specific price for a specific period of time. Warrants may be more speculative than other types of investments. The price of a warrant may be more volatile than the price of its underlying security, and a warrant may offer greater potential for capital appreciation as well as capital loss. A warrant ceases to have value if it is not exercised prior to its expiration date.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Derivatives Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Derivatives Risk — The Fund's use of futures contracts, forward contracts, options and swaps is subject to market risk, leverage risk, correlation risk and liquidity risk. Market risk is described above, and leverage risk and liquidity risk are described below. Many OTC derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. The Fund's use of forward contracts and swap agreements is also subject to credit risk and valuation risk. Credit risk is described below. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of the above risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Credit Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Leverage Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Leverage Risk — The Fund's use of derivatives may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Liquidity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like. The Fund may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

EMERGING MARKETS EQUITY FUND - Class Y Prospectus | SIT EMERGING MARKETS EQUITY FUND | Exchange-Traded Funds (ETFs) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Exchange-Traded Funds (ETFs) Risk — The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio securities. When the Fund invests in an ETF, in addition to directly bearing the expenses associated with its own operations, it will bear a pro rata portion of the ETF's expenses.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] You could lose money on your investment in the Fund, just as you could with other investments.
INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Risk Not Insured [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could further decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Foreign Investment/Emerging Markets Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Investment/Emerging Markets Risk — The risk that non-U.S. securities may be subject to additional risks due to, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments. These additional risks may be heightened with respect to emerging market countries because political turmoil and rapid changes in economic conditions are more likely to occur in these countries. Investments in emerging markets are subject to the added risk that information in emerging market investments may be unreliable or outdated due to differences in regulatory, accounting or auditing and financial record keeping standards, or because less information about emerging market investments is publicly available. In addition, the rights and remedies associated with emerging market investments may be different than investments in developed markets. A lack of reliable information, rights and remedies increase the risks of investing in emerging markets in comparison to more developed markets. In addition, periodic U.S. Government restrictions on investments in issuers from certain foreign countries may require the Fund to sell such investments at inopportune times, which could result in losses to the Fund.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk — The risk that developed international fixed income securities may underperform other segments of the fixed income markets or the fixed income markets as a whole.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Non-Diversified Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Non-Diversified Risk — The Fund is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Fund may be more susceptible to a single adverse economic or political occurrence affecting one or more of these issuers and may experience increased volatility due to its investments in those securities. However, the Fund intends to satisfy the asset diversification requirements under the Internal Revenue Code of 1986, as amended (the Code) for classification as a regulated investment company (RIC).

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Interest Rate Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Interest Rate Risk — The risk that a change in interest rates will cause a fall in the value of fixed income securities, including U.S. Government securities, in which the Fund invests. Generally, the value of the Fund's fixed income securities will vary inversely with the direction of prevailing interest rates. Changing interest rates may have unpredictable effects on the markets and may affect the value and liquidity of instruments held by the Fund. Although U.S. Government securities are considered to be among the safest investments, they are not guaranteed against price movements due to changing interest rates.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Duration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Duration Risk — The longer-term securities in which the Fund may invest tend to be more volatile than shorter-term securities. A portfolio with a longer average portfolio duration is more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Corporate Fixed Income Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Corporate Fixed Income Securities Risk — Corporate fixed income securities respond to economic developments, especially changes in interest rates, as well as perceptions of the creditworthiness and business prospects of individual issuers.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Currency Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Currency Risk — As a result of the Fund's investments in active positions in currencies and securities or other investments denominated in, and/or receiving revenues in, foreign currencies and the Fund's active management of its currency exposures, the Fund will be subject to currency risk. Currency risk is the risk that foreign currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency hedged. In either event, the dollar value of an investment in the Fund would be adversely affected. Due to the Fund's active positions in currencies, it will be subject to the risk that currency exchange rates may fluctuate in response to, among other things, changes in interest rates, intervention (or failure to intervene) by U.S. or foreign governments, central banks or supranational entities, or by the imposition of currency controls or other political developments in the United States or abroad.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Asset-Backed Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Asset-Backed Securities Risk — Payment of principal and interest on asset-backed securities is dependent largely on the cash flows generated by the assets backing the securities. Securitization trusts generally do not have any assets or sources of funds other than the receivables and related property they own, and asset-backed securities are generally not insured or guaranteed by the related sponsor or any other entity.

Asset-backed securities may be more illiquid than more conventional types of fixed-income securities that the Fund acquires.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Below Investment Grade Securities (Junk Bonds) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Below Investment Grade Securities (Junk Bonds) Risk — Fixed income securities rated below investment grade (junk bonds) involve greater risks of default or downgrade and are generally more volatile than investment grade securities because the prospect for repayment of principal and interest of many of these securities is speculative. Because these securities typically offer a higher rate of return to compensate investors for these risks, they are sometimes referred to as "high yield bonds," but there is no guarantee that an investment in these securities will result in a high rate of return.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Derivatives Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Derivatives Risk — The Fund's use of swaps, futures and forward contracts is subject to market risk, leverage risk, correlation risk and liquidity risk. Market risk is described above, and leverage risk and liquidity risk are described below. Many over-the-counter (OTC) derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. The Fund's use of swaps and forward contracts is also subject to credit risk and valuation risk. Credit risk is described above. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of the above risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Credit Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Foreign Sovereign Debt Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Sovereign Debt Securities Risk — The risks that: (i) the governmental entity that controls the repayment of sovereign debt may not be willing or able to repay the principal and/or interest when it becomes due because of factors such as debt service burden, political constraints, cash flow problems and other national economic factors; (ii) governments may default on their debt securities, which may require holders of such securities to participate in debt rescheduling or additional lending to defaulting governments; and (iii) there is no bankruptcy proceeding by which defaulted sovereign debt may be collected in whole or in part.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Leverage Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Leverage Risk — The Fund's use of derivatives may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Liquidity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like. The Fund may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | U.S. Government Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

U.S. Government Securities Risk — Although U.S. Government securities are considered to be among the safest investments, they are still subject to the credit risk of the U.S. Government and are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency's own resources. No assurance can be given that the U.S. Government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Bank Loans Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Bank Loans Risk — With respect to bank loans, the Fund will assume the credit risk of both the borrower and the lender that is selling the participation. The Fund may also have difficulty disposing of bank loans because, in certain cases, the market for such instruments is not highly liquid.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Mortgage-Backed Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Mortgage-Backed Securities Risk — Mortgage-backed securities are affected significantly by the rate of prepayments and modifications of the mortgage loans backing those securities, as well as by other factors such as borrower defaults, delinquencies, realized or liquidation losses and other shortfalls. Mortgage-backed securities are particularly sensitive to prepayment risk, which is described below, given that the term to maturity for mortgage loans is generally substantially longer than the expected lives of those securities; however, the timing and amount of prepayments cannot be accurately predicted. The timing of changes in the rate of prepayments of the mortgage loans may significantly affect the Fund's actual yield to maturity on any mortgage-backed securities, even if the average rate of principal payments is consistent with the Fund's expectation. Along with prepayment risk, mortgage-backed securities are significantly affected by interest rate risk, which is described above. In a low interest rate environment, mortgage loan prepayments would generally be expected to increase due to factors such as refinancing and loan modifications at lower interest rates. In contrast, if prevailing interest rates rise, prepayments of mortgage loans would generally be expected to decline and therefore extend the weighted average lives of mortgage-backed securities held or acquired by the Fund.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Extension Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Prepayment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Prepayment Risk — The risk that in a declining interest rate environment, fixed income securities with stated interest rates may have the principal paid earlier than expected, requiring the Fund to invest the proceeds at generally lower interest rates.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Exchange-Traded Funds (ETFs) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Exchange-Traded Funds (ETFs) Risk — The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio securities. When the Fund invests in an ETF, in addition to directly bearing the expenses associated with its own operations, it will bear a pro rata portion of the ETF's expenses.

INTERNATIONAL FIXED INCOME FUND - Class Y Prospectus | SIT INTERNATIONAL FIXED INCOME FUND | Portfolio Turnover Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Portfolio Turnover Risk — Due to its investment strategy, the Fund may buy and sell securities frequently. This may result in higher transaction costs and additional capital gains tax liabilities, which may affect the Fund's performance.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Risk Lose Money [Member]  
Prospectus [Line Items]  
Risk [Text Block] You could lose money on your investment in the Fund, just as you could with other investments.
EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Risk Not Insured [Member]  
Prospectus [Line Items]  
Risk [Text Block] An investment in the Fund is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Market Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Market Risk — The prices of the Fund's fixed income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund's fixed income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could further decrease liquidity and/or increase volatility in the fixed income markets. Markets for fixed income securities may decline significantly in response to adverse issuer, political, regulatory, market, economic or other developments that may cause broad changes in market value, public perceptions concerning these developments, and adverse investor sentiment or publicity. Similarly, environmental and public health risks, such as natural disasters, epidemics, pandemics or widespread fear that such events may occur, may impact markets adversely and cause market volatility in both the short- and long-term. In response to these events, the Fund's value may fluctuate and/or the Fund may experience increased redemptions from shareholders, which may impact the Fund's liquidity or force the Fund to sell securities into a declining or illiquid market.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Foreign Investment/Emerging Markets Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Investment/Emerging Markets Risk — The risk that non-U.S. securities may be subject to additional risks due to, among other things, political, social and economic developments abroad, currency movements and different legal, regulatory, tax, accounting and audit environments. These additional risks may be heightened with respect to emerging market countries because political turmoil and rapid changes in economic conditions are more likely to occur in these countries. Investments in emerging markets are subject to the added risk that information in emerging market investments may be unreliable or outdated due to differences in regulatory, accounting or auditing and financial record keeping standards, or because less information about emerging market investments is publicly available. In addition, the rights and remedies associated with emerging market investments may be different than investments in developed markets. A lack of reliable information, rights and remedies increase the risks of investing in emerging markets in comparison to more developed markets. In addition, periodic U.S. Government restrictions on investments in issuers from certain foreign countries may require the Fund to sell such investments at inopportune times, which could result in losses to the Fund.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Investment Style Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Investment Style Risk — The risk that emerging market debt securities may underperform other segments of the fixed income markets or the fixed income markets as a whole.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Non-Diversified Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Non-Diversified Risk — The Fund is non-diversified, which means that it may invest in the securities of relatively few issuers. As a result, the Fund may be more susceptible to a single adverse economic or political occurrence affecting one or more of these issuers and may experience increased volatility due to its investments in those securities. However, the Fund intends to satisfy the asset diversification requirements under the Internal Revenue Code of 1986, as amended (the Code) for classification as a regulated investment company (RIC).

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Interest Rate Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Interest Rate Risk — The risk that a change in interest rates will cause a fall in the value of fixed income securities, including U.S. Government securities, in which the Fund invests. Generally, the value of the Fund's fixed income securities will vary inversely with the direction of prevailing interest rates. Changing interest rates may have unpredictable effects on the markets and may affect the value and liquidity of instruments held by the Fund. Although U.S. Government securities are considered to be among the safest investments, they are not guaranteed against price movements due to changing interest rates.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Duration Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Duration Risk — The longer-term securities in which the Fund may invest tend to be more volatile than shorter-term securities. A portfolio with a longer average portfolio duration is more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Corporate Fixed Income Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Corporate Fixed Income Securities Risk — Corporate fixed income securities respond to economic developments, especially changes in interest rates, as well as perceptions of the creditworthiness and business prospects of individual issuers.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Currency Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Currency Risk — As a result of the Fund's investments in active positions in currencies and securities or other investments denominated in, and/or receiving revenues in, foreign currencies and the Fund's active management of its currency exposures, the Fund will be subject to currency risk. Currency risk is the risk that foreign currencies will decline in value relative to the U.S. dollar or, in the case of hedging positions, that the U.S. dollar will decline in value relative to the currency hedged. In either event, the dollar value of an investment in the Fund would be adversely affected. Due to the Fund's active positions in currencies, it will be subject to the risk that currency exchange rates may fluctuate in response to, among other things, changes in

interest rates, intervention (or failure to intervene) by U.S. or foreign governments, central banks or supranational entities, or by the imposition of currency controls or other political developments in the United States or abroad.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Below Investment Grade Securities (Junk Bonds) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Below Investment Grade Securities (Junk Bonds) Risk — Fixed income securities rated below investment grade (junk bonds) involve greater risks of default or downgrade and are generally more volatile than investment grade securities because the prospect for repayment of principal and interest of many of these securities is speculative. Because these securities typically offer a higher rate of return to compensate investors for these risks, they are sometimes referred to as "high yield bonds," but there is no guarantee that an investment in these securities will result in a high rate of return.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Derivatives Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Derivatives Risk — The Fund's use of futures contracts, forward contracts, options, swaps and credit-linked notes is subject to market risk, leverage risk, correlation risk and liquidity risk. Market risk and liquidity risk

are described above, and leverage risk is described below. Many over-the-counter (OTC) derivative instruments will not have liquidity beyond the counterparty to the instrument. Correlation risk is the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. The Fund's use of forward contracts, options, credit-linked notes and swap agreements is also subject to credit risk and valuation risk. Credit risk is described above. Valuation risk is the risk that the derivative may be difficult to value and/or valued incorrectly. Each of the above risks could cause the Fund to lose more than the principal amount invested in a derivative instrument. Some derivatives have the potential for unlimited loss, regardless of the size of the Fund's initial investment. The other parties to certain derivative contracts present the same types of credit risk as issuers of fixed income securities. The Fund's use of derivatives may also increase the amount of taxes payable by shareholders. Both U.S. and non-U.S. regulators have adopted and implemented regulations governing derivatives markets, the ultimate impact of which remains unclear.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Credit Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Credit Risk — The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Foreign Sovereign Debt Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Foreign Sovereign Debt Securities Risk — The risks that (i) the governmental entity that controls the repayment of sovereign debt may not be willing or able to repay the principal and/or interest when it becomes due because of factors such as debt service burden, political constraints, cash flow problems and other national economic factors; (ii) governments may default on their debt securities, which may require holders of such securities to participate in debt rescheduling or additional lending to defaulting governments; and (iii) there is no bankruptcy proceeding by which defaulted sovereign debt may be collected in whole or in part.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Leverage Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Leverage Risk — The Fund's use of derivatives may result in the Fund's total investment exposure substantially exceeding the value of its portfolio securities and the Fund's investment returns depending substantially on the performance of securities that the Fund may not directly own. The use of leverage can amplify the effects of market volatility on the Fund's share price and may also cause the Fund to liquidate portfolio positions when it would not be advantageous to do so in order to satisfy its obligations. The Fund's use of leverage may result in a heightened risk of investment loss.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Structured Securities Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Structured Securities Risk — The payment and credit qualities of structured securities derive from their underlying assets, and they may behave in ways not anticipated by the Fund, or they may not receive tax, accounting or regulatory treatment anticipated by the Fund.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Liquidity Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Liquidity Risk — The risk that certain securities may be difficult or impossible to sell at the time and the price that the Fund would like. The Fund may have to lower the price of the security, sell other securities instead or forego an investment opportunity, any of which could have a negative effect on Fund management or performance.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Extension Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Extension Risk — The risk that rising interest rates may extend the duration of a fixed income security, typically reducing the security's value.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Prepayment Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Prepayment Risk — The risk that in a declining interest rate environment, fixed income securities with stated interest rates may have the principal paid earlier than expected, requiring the Fund to invest the proceeds at generally lower interest rates.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Exchange-Traded Funds (ETFs) Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Exchange-Traded Funds (ETFs) Risk — The risks of owning shares of an ETF generally reflect the risks of owning the underlying securities the ETF is designed to track, although lack of liquidity in an ETF could result in its value being more volatile than the underlying portfolio securities. When the Fund invests in an ETF, in addition to directly bearing the expenses associated with its own operations, it will bear a pro rata portion of the ETF's expenses.

EMERGING MARKETS DEBT FUND - Class Y Prospectus | SIT EMERGING MARKETS DEBT FUND | Portfolio Turnover Risk [Member]  
Prospectus [Line Items]  
Risk [Text Block]

Portfolio Turnover Risk — Due to its investment strategy, the Fund may buy and sell securities frequently. This may result in higher transaction costs and additional capital gains tax liabilities, which may affect the Fund's performance.