S000000882 [Member] Investment Risks - Wasatch-Hoisington U.S. Treasury Fund	Sep. 30, 2025
Current Market and Economic Conditions Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Current Market and Economic Conditions Risk. Current market and economic conditions risk is the risk that a particular investment, or shares of the Fund in general, may fall in value due to current market and economic conditions or events. For example, actions taken by the Federal Reserve or foreign central banks may at times result in unusually high market volatility, may negatively impact companies, including banks and financial services companies, and negatively impact Fund performance. U.S. regulators have also proposed from time to time changes to market and issuer regulations which may impact the Fund, and any regulatory changes adopted could adversely impact the Fund’s ability to achieve its investment strategies or make certain investments. Recent and potential future bank failures could result in disruption to the broader banking industry or markets generally and reduce confidence in financial institutions and the economy as a whole, which may also heighten market volatility and reduce liquidity. The ongoing adversarial political climate in the United States, as well as political and diplomatic events both domestic and abroad, have and may continue to have an adverse impact on the U.S. regulatory landscape, markets and investor behavior, which could have a negative impact on the Fund’s investments and operations. Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. For example, in February 2022, Russia invaded Ukraine which has caused and could continue to cause significant market disruptions and volatility within the markets in Russia, Europe and the United States. The hostilities and sanctions resulting from those hostilities may have a significant impact on certain Fund investments as well as performance and liquidity. Similarly, in October 2023, Hamas launched an attack on Israel, which touched off a strong military response from Israel that closed borders and airspace, damaged infrastructure and resulted in significant civilian and military casualties in Israel and the Gaza Strip. The conflict has reignited regional tensions that threaten to involve other countries and factions. The continuing conflict and its escalation could have a severe adverse effect on the regional economy, currency and companies. These events may negatively impact other regional and global economic markets of the world (including Europe and the United States), companies in such countries and various sectors, industries and markets for securities and commodities globally, such as oil and natural gas. In addition, the Chinese government is engaged in a longstanding dispute with Taiwan, continually threatening an invasion. If the political climate between the United States and China does not improve or continues to deteriorate, if China were to attempt invading Taiwan, or if other geopolitical conflicts develop or worsen, economies, markets and individual securities may be adversely affected, and the value of the Fund’s assets may go down. Accordingly, the hostilities and sanctions resulting from these hostilities may have a negative effect on certain Fund investments, including investments extending beyond any direct or indirect exposure the Fund may have to issuers of such countries or those of adjoining geographic regions. The economies of the United States and its trading partners, as well as the financial markets generally, may be adversely impacted by trade disputes and other matters. For example, the U.S. recently has been in the process of renegotiating many of its global trade relationships and has imposed or threatened to impose significant import tariffs, including with respect to China. Such actions could lead to price volatility and overall decline in U.S. and global investment markets. It is difficult to predict the outcome and impact of any trade negotiations. In addition, a public health crisis and ensuing policies enacted by governments and central banks may cause significant volatility and uncertainty in global financial markets, negatively impacting global growth prospects. As the COVID-19 pandemic illustrated, such events may affect certain geographic regions, countries, sectors and industries more significantly than others. Advancements in technology may also adversely impact markets and the overall performance of the Fund. For instance, the economy may be significantly impacted by the advanced development and increased regulation of artificial intelligence. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets. Further, the interconnectivity between global economies and financial markets increases the likelihood that events or conditions in one region or financial market may adversely impact issuers in a different country, region or financial market.
Effective Duration [Member]
Prospectus [Line Items]
Risk [Text Block]	Effective Duration. Effective duration is a measure of the responsiveness of a bond’s price to market interest rate changes. For example, if the interest rate increased 1%, a bond with an effective duration of five years would experience a decline in price of approximately 5%. Similarly, if the interest rate increased 1%, the price of a bond with an effective duration of 15 years would decline approximately 15%. The effective duration of the longest maturity U.S. zero coupon bond is 30 years. If the interest rate increased 1%, the value of the longest maturity zero coupon bond would decline approximately 30%. Similarly, if the interest rate decreased 1%, the value of the longest maturity zero coupon bond would increase approximately 30%. Accordingly, a fund with a longer weighted average maturity or effective duration may be impacted to a greater degree than a fund that has a portfolio with a shorter weighted average maturity or effective duration.
Operational and Cybersecurity Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Operational and Cybersecurity Risk. Cybersecurity breaches may allow an unauthorized party to gain access to Fund assets, customer data, or proprietary information, or cause the Fund or its service providers to lose proprietary information, suffer data corruption, or lose operational functionality. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Similar incidents affecting issuers of the Fund’s portfolio companies may negatively impact performance. Operational risk may arise from human error, errors by third parties, communication errors, or technology failures, among other causes. The Fund also relies on a range of services from third-parties, including custody. Any delay or failure in the services provided to the Fund may negatively affect the Fund and its ability to meet its investment objective. Although the Fund and the Fund’s investment adviser seek to reduce operational risks through controls and/or procedures, it is not possible to identify and address all such risks and there is no way to completely protect against or mitigate such risks, especially because the Fund does not directly control the cybersecurity systems of issuers or third-party service providers.
Government and Regulatory Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Government and Regulatory Risk. The risk that governments or regulatory authorities may take actions that could adversely affect markets in which the Fund invests and in the economy, more generally. Government and regulatory authorities may also act to increase the scope or burden of regulations applicable to the Fund and to the companies in which the Fund invests. Such legislation or regulation could restrict the ability of the Fund to fully implement its investment strategies, either generally or with respect to certain securities, industries or countries and could limit or preclude the Fund’s ability to achieve its investment objective.
Credit Risks [Member]
Prospectus [Line Items]
Risk [Text Block]	Credit Risk. Credit risk is the risk that the issuer of a debt security will fail to repay principal and interest on the security when due. HIMCo seeks to limit credit risk by investing in U.S. Treasury securities, which are backed by the full faith and credit of the U.S. government and are viewed as carrying minimal credit risk. Changes to the financial condition or credit rating of the U.S. government, however, may cause the value of the Fund’s investments in obligations issued by the U.S. Treasury to decline.
Interest Rate Risks [Member]
Prospectus [Line Items]
Risk [Text Block]	Interest Rate Risk. Interest rate risk is the risk that a debt security’s value will decline due to an increase in market interest rates. Even though U.S. Treasury securities offer a stable stream of income, their prices will still fluctuate with changes in interest rates. Very low interest rates may magnify interest rate risk. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities.
Income Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Income Risk. Income risk is the potential for a decline in the Fund’s income due to falling interest rates.
Repurchase Agreements Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Repurchase Agreements Risk. The main risk of a repurchase agreement is that the original seller might default on its obligation to repurchase the securities. If the seller defaults, the Fund will seek to recover its investment by selling the collateral and could encounter restrictions, costs or delays. The Fund will suffer a loss if it sells the collateral for less than the repurchase price.
Treasury Inflation Protected Securities TIPS Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Treasury Inflation-Protected Securities (“TIPS”) Risk. TIPS are debt instruments issued by the United States Department of the Treasury. The principal of TIPS increases with inflation and decreases with deflation, as measured by the Consumer Price Index (“CPI”). When TIPS mature, investors are paid the adjusted principal or original principal, whichever is greater. Interest payments on TIPS are unpredictable and will fluctuate as the principal and corresponding interest payments are adjusted for inflation. Inflation-indexed bonds generally pay a lower nominal interest rate than a comparable non-inflation-indexed bond. There can be no assurance that the CPI will accurately measure the real rate of inflation in the prices of goods and services. Any increases in the principal amount of TIPS will be considered taxable ordinary income, even though the Fund will not receive the principal until maturity. As a result, the Fund may make income distributions to shareholders that exceed the cash it receives. In addition, TIPS are subject to credit risk, interest rate risk, and duration risk.
Floating Rate Instrument Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Floating Rate Instrument Risk. Floating rate securities provide for periodic adjustment in the interest rate paid on the securities. These securities may be subject to greater illiquidity risk than other fixed income securities, meaning absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time.
Risks of Zero Coupon Treasury Securities [Member]
Prospectus [Line Items]
Risk [Text Block]	Risks of Zero Coupon Treasury Securities. The market prices of zero coupon securities, which do not entitle the holder to periodic interest payments, are generally more volatile than the market prices of securities of comparable quality and similar maturity that do pay interest periodically. Zero coupon securities are more sensitive to fluctuations in interest rates than coupon securities of the same maturity.
Volatility Risk [Member]
Prospectus [Line Items]
Risk [Text Block]	Volatility Risk. Longer-term bonds are more sensitive to interest rate changes than shorter-term notes and bills. Prices of debt securities move inversely to interest rates. As a result, when the Fund is invested in longer-term securities, it may experience significant negative returns when long-term interest rates increase.
Market Risks [Member]
Prospectus [Line Items]
Risk [Text Block]	Market Risk. Market risk is the risk that a particular security, or shares of the Fund in general, may fall in value. Securities are subject to market fluctuations caused by such factors as economic, political, regulatory or market developments, changes in interest rates and perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments due to, among other things, market movements over the short-term or over longer periods during more prolonged market downturns. In addition, local, regional or global events such as war, acts of terrorism, spread of infectious diseases or other public health issues, recessions, or other events could have a significant negative impact on the Fund and its investments. Such events may affect certain geographic regions, countries, sectors and industries more significantly than others. Such events could adversely affect the prices and liquidity of the Fund’s portfolio securities or other instruments and could result in disruptions in the trading markets. Any of such circumstances could have a materially negative impact on the value of the Fund’s shares and result in increased market volatility.
Risk Lose Money [Member]
Prospectus [Line Items]
Risk [Text Block]	All investments carry some degree of risk that will affect the value of the Fund, its investment performance and the price of its shares. As a result, you may lose money if you invest in the Fund.
Risk Not Insured Depository Institution [Member]
Prospectus [Line Items]
Risk [Text Block]	An investment in the Fund is not a deposit of any bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.

S000000882 [Member] Investment Risks - Wasatch-Hoisington U.S. Treasury Fund

Sep. 30, 2025

Current Market and Economic Conditions Risk. Current market and economic conditions risk is the risk that a particular investment, or shares of the Fund in general, may fall in value due to current market and economic conditions or events. For example, actions taken by the Federal Reserve or foreign central banks may at times result in unusually high market volatility, may negatively impact companies, including banks and financial services companies, and negatively impact Fund performance. U.S. regulators have also proposed from time to time changes to market and issuer regulations which may impact the Fund, and any regulatory changes adopted could adversely impact the Fund’s ability to achieve its investment strategies or make certain investments. Recent and potential future bank failures could result in disruption to the broader banking industry or markets generally and reduce confidence in financial institutions and the economy as a whole, which may also heighten market volatility and reduce liquidity. The ongoing adversarial political climate in the United States, as well as political and diplomatic events both domestic and abroad, have and may continue to have an adverse impact on the U.S. regulatory landscape, markets and investor behavior, which could have a negative impact on the Fund’s investments and operations.

Other unexpected political, regulatory and diplomatic events within the U.S. and abroad may affect investor and consumer confidence and may adversely impact financial markets and the broader economy. For example, in February 2022, Russia invaded Ukraine which has caused and could continue to cause significant market disruptions and volatility within the markets in Russia, Europe and the United States. The hostilities and sanctions resulting from those hostilities may have a significant impact on certain Fund investments as well as performance and liquidity. Similarly, in October 2023, Hamas launched an attack on Israel, which touched off a strong military response from Israel that closed borders and airspace, damaged infrastructure and resulted in significant civilian and military casualties in Israel and the Gaza Strip. The conflict has reignited regional tensions that threaten to involve other countries and factions. The continuing conflict and its escalation could have a severe adverse effect on the regional economy, currency and companies. These events may negatively impact other regional and global economic markets of the world (including Europe and the United States), companies in such countries and various sectors, industries and markets for securities and commodities globally, such as oil and natural gas. In addition, the Chinese government is engaged in a longstanding dispute with Taiwan, continually threatening an invasion. If the political climate between the United States and China does not improve or continues to deteriorate, if China were to attempt invading Taiwan, or if other geopolitical conflicts develop or worsen, economies, markets and individual securities may be adversely affected, and the value of the Fund’s assets may go down. Accordingly, the hostilities and sanctions resulting from these hostilities may have a negative effect on certain Fund investments, including investments extending beyond any direct or indirect exposure the Fund may have to issuers of such countries or those of adjoining geographic regions.

The economies of the United States and its trading partners, as well as the financial markets generally, may be adversely impacted by trade disputes and other matters. For example, the U.S. recently has been in the process of renegotiating many of its global trade relationships and has imposed or threatened to impose significant import tariffs, including with respect to China. Such actions could lead to price volatility and overall decline in U.S. and global investment markets. It is difficult to predict the outcome and impact of any trade negotiations.

In addition, a public health crisis and ensuing policies enacted by governments and central banks may cause significant volatility and uncertainty in global financial markets, negatively impacting global growth prospects. As the COVID-19 pandemic illustrated, such events may affect certain geographic regions, countries, sectors and industries more significantly than others.

Advancements in technology may also adversely impact markets and the overall performance of the Fund. For instance, the economy may be significantly impacted by the advanced development and increased regulation of artificial intelligence. These events, and any other future events, may adversely affect the prices and liquidity of the Fund’s portfolio investments and could result in disruptions in the trading markets. Further, the interconnectivity between global economies and financial markets increases the likelihood that events or conditions in one region or financial market may adversely impact issuers in a different country, region or financial market.

Effective Duration [Member]

Prospectus [Line Items]

Risk [Text Block]

Effective Duration. Effective duration is a measure of the responsiveness of a bond’s price to market interest rate changes. For example, if the interest rate increased 1%, a bond with an effective duration of five years would experience a decline in price of approximately 5%. Similarly, if the interest rate increased 1%, the price of a bond with an effective duration of 15 years would decline approximately 15%. The effective duration of the longest maturity U.S. zero coupon bond is 30 years. If the interest rate increased 1%, the value of the longest maturity zero coupon bond would decline approximately 30%. Similarly, if the interest rate decreased 1%, the value of the longest maturity zero coupon bond would increase approximately 30%. Accordingly, a fund with a longer weighted average maturity or effective duration may be impacted to a greater degree than a fund that has a portfolio with a shorter weighted average maturity or effective duration.

Operational and Cybersecurity Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Operational and Cybersecurity Risk. Cybersecurity breaches may allow an unauthorized party to gain access to Fund assets, customer data, or proprietary information, or cause the Fund or its service providers to lose proprietary information, suffer data corruption, or lose operational functionality. Such events could cause the Fund to incur regulatory penalties, reputational damage, additional compliance costs associated with corrective measures and/or financial loss. Similar incidents affecting issuers of the Fund’s portfolio companies may negatively impact performance. Operational risk may arise from human error, errors by third parties, communication errors, or technology failures, among other causes. The Fund also relies on a range of services from third-parties, including custody. Any delay or failure in the services provided to the Fund may negatively affect the Fund and its ability to meet its investment objective. Although the Fund and the Fund’s investment adviser seek to reduce operational risks through controls and/or procedures, it is not possible to identify and address all such risks and there is no way to completely protect against or mitigate such risks, especially because the Fund does not directly control the cybersecurity systems of issuers or third-party service providers.

Government and Regulatory Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Government and Regulatory Risk. The risk that governments or regulatory authorities may take actions that could adversely affect markets in which the Fund invests and in the economy, more generally. Government and regulatory authorities may also act to increase the scope or burden of regulations applicable to the Fund and to the companies in which the Fund invests. Such legislation or regulation could restrict the ability of the Fund to fully implement its investment strategies, either generally or with respect to certain securities, industries or countries and could limit or preclude the Fund’s ability to achieve its investment objective.

Credit Risks [Member]

Prospectus [Line Items]

Risk [Text Block]

Credit Risk. Credit risk is the risk that the issuer of a debt security will fail to repay principal and interest on the security when due. HIMCo seeks to limit credit risk by investing in U.S. Treasury securities, which are backed by the full faith and credit of the U.S. government and are viewed as carrying minimal credit risk. Changes to the financial condition or credit rating of the U.S. government, however, may cause the value of the Fund’s investments in obligations issued by the U.S. Treasury to decline.

Interest Rate Risks [Member]

Prospectus [Line Items]

Risk [Text Block]

Interest Rate Risk. Interest rate risk is the risk that a debt security’s value will decline due to an increase in market interest rates. Even though U.S. Treasury securities offer a stable stream of income, their prices will still fluctuate with changes in interest rates. Very low interest rates may magnify interest rate risk. When interest rates change, the values of longer-duration debt securities usually change more than the values of shorter-duration debt securities.

Income Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Income Risk. Income risk is the potential for a decline in the Fund’s income due to falling interest rates.

Repurchase Agreements Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Repurchase Agreements Risk. The main risk of a repurchase agreement is that the original seller might default on its obligation to repurchase the securities. If the seller defaults, the Fund will seek to recover its investment by selling the collateral and could encounter restrictions, costs or delays. The Fund will suffer a loss if it sells the collateral for less than the repurchase price.

Treasury Inflation Protected Securities TIPS Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Treasury Inflation-Protected Securities (“TIPS”) Risk. TIPS are debt instruments issued by the United States Department of the Treasury. The principal of TIPS increases with inflation and decreases with deflation, as measured by the Consumer Price Index (“CPI”). When TIPS mature, investors are paid the adjusted principal or original principal, whichever is greater. Interest payments on TIPS are unpredictable and will fluctuate as the principal and corresponding interest payments are adjusted for inflation. Inflation-indexed bonds generally pay a lower nominal interest rate than a comparable non-inflation-indexed bond. There can be no assurance that the CPI will accurately measure the real rate of inflation in the prices of goods and services. Any increases in the principal amount of TIPS will be considered taxable ordinary income, even though the Fund will not receive the principal until maturity. As a result, the Fund may make income distributions to shareholders that exceed the cash it receives. In addition, TIPS are subject to credit risk, interest rate risk, and duration risk.

Floating Rate Instrument Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Floating Rate Instrument Risk. Floating rate securities provide for periodic adjustment in the interest rate paid on the securities. These securities may be subject to greater illiquidity risk than other fixed income securities, meaning absence of an active market for these securities could make it difficult for the Fund to dispose of them at any given time.

Risks of Zero Coupon Treasury Securities [Member]

Prospectus [Line Items]

Risk [Text Block]

Risks of Zero Coupon Treasury Securities. The market prices of zero coupon securities, which do not entitle the holder to periodic interest payments, are generally more volatile than the market prices of securities of comparable quality and similar maturity that do pay interest periodically. Zero coupon securities are more sensitive to fluctuations in interest rates than coupon securities of the same maturity.

Volatility Risk [Member]

Prospectus [Line Items]

Risk [Text Block]

Volatility Risk. Longer-term bonds are more sensitive to interest rate changes than shorter-term notes and bills. Prices of debt securities move inversely to interest rates. As a result, when the Fund is invested in longer-term securities, it may experience significant negative returns when long-term interest rates increase.

Market Risks [Member]

Prospectus [Line Items]

Risk [Text Block]

Market Risk. Market risk is the risk that a particular security, or shares of the Fund in general, may fall in value. Securities are subject to market fluctuations caused by such factors as economic, political, regulatory or market developments, changes in interest rates and perceived trends in securities prices. Shares of the Fund could decline in value or underperform other investments due to, among other things, market movements over the short-term or over longer periods during more prolonged market downturns. In addition, local, regional or global events such as war, acts of terrorism, spread of infectious diseases or other public health issues, recessions, or other events could have a significant negative impact on the Fund and its investments. Such events may affect certain geographic regions, countries, sectors and industries more significantly than others. Such events could adversely affect the prices and liquidity of the Fund’s portfolio securities or other instruments and could result in disruptions in the trading markets. Any of such circumstances could have a materially negative impact on the value of the Fund’s shares and result in increased market volatility.

Risk Lose Money [Member]

Prospectus [Line Items]

Risk [Text Block]

All investments carry some degree of risk that will affect the value of the Fund, its investment performance and the price of its shares. As a result, you may lose money if you invest in the Fund.

Risk Not Insured Depository Institution [Member]

Prospectus [Line Items]

Risk [Text Block]

An investment in the Fund is not a deposit of any bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other government agency.