v3.25.4
S000038937 [Member] Investment Risks - Wasatch Emerging Markets Select Fund
Sep. 30, 2025
Current Market and Economic Conditions Risk [Member]  
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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.
Stock Market Risk [Member]  
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Stock Market Risk. The Fund’s investments may decline in value due to movements in the overall stock market.
Stock Selection Risk [Member]  
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Stock Selection Risk. The Fund is actively managed, and its performance therefore will reflect, in part, the ability of the portfolio manager(s) to select investments and to make investment decisions that are suited to achieving the Fund’s investment objective. The Advisor does not actively track the composition or weightings of market indexes (including the Fund’s benchmark indexes) or of the broader markets generally. As a result, the Fund could underperform its benchmark indexes and/or other funds with a similar investment objective and/or strategy or it may lose value even when the overall stock market is not in general decline.
Equity Securities Risk [Member]  
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Equity Securities Risk. Equity securities represent ownership in a company. They may be traded (bought or sold) on a securities exchange or stock market. Stock markets are volatile. The price of equity securities will fluctuate and can decline and reduce the value of a portfolio invested in equity securities. The value of equity securities purchased by the Fund could decline if the financial condition of the companies in which the Fund invests declines or if overall market and economic conditions deteriorate. The value of equity securities may also decline due to factors that affect a particular industry or industries such as labor shortages, an increase in production costs and changes in competitive conditions within an industry. In addition, the value of equity securities may decline due to, among other things, general market conditions not specifically related to a company or industry such as real or perceived adverse economic conditions, changes in the general outlook for corporate earnings, changes in interest or currency rates, changes in government regulations, the political situation, or generally adverse investor sentiment. Certain equity securities may be less liquid, meaning that they may be difficult to sell at a time or price that is desirable, than other types of securities, or they may be illiquid. Some securities exchanges or stock markets may also be less liquid or illiquid due to low trading volume. In addition, equity securities include common stock. Common stock holds the lowest priority in the capital structure of a company and therefore takes the largest share of the company’s risk and its accompanying volatility. The rights of common stockholders generally are subordinate to all other claims on a company’s assets, including preferred stockholders and debt holders with respect to the payment of dividends and upon the liquidation or bankruptcy of the issuing company. The common stock of a company that experiences financial distress may lose significant value or become worthless, and therefore the Fund could lose money if a company in which it invests becomes financially distressed.  
Liquidity Risk [Member]  
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Liquidity Risk. In addition, the trading market for a particular security or type of security in which the Fund invests may be significantly less liquid than developed or even emerging markets, and there may be little or no trading volume for a period of time for a particular security. Reduced liquidity will have an adverse impact on the Fund’s ability to sell such securities quickly at a desired price when necessary to meet the Fund’s liquidity needs or in response to a specific economic event. It may be difficult at times to sell such securities at any price, which could impact not only the daily net asset value (NAV) of the Fund, but also the composition of the portfolio if other securities must be sold to meet the Fund’s liquidity needs. Additionally, market quotations for such securities may be volatile and thus affect the daily NAV of the Fund.
Foreign Securities Risk [Member]  
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Foreign Securities Risk. Foreign securities are generally more volatile and less liquid than U.S. securities. Further, foreign securities may be subject to additional risks not associated with investments in U.S. securities. Securities issued by companies incorporated outside the United States but whose securities are principally traded in the United States are still subject to many of the foreign securities risks such as economic and political risks. Differences in the economic and political environment, the amount of available public information, custody practices for assets, the amount of taxation, limitations on the use or transfer of Fund assets, the degree of market regulation, settlement practices, transaction costs, the potential for permanent or temporary termination of trading, and financial reporting, accounting and auditing standards, and, in the case of foreign currency-denominated securities, fluctuations in currency exchange rates, can have a significant adverse effect on the value of a foreign security. More specifically, changes in currency exchange rates will affect the value of non-U.S. securities, the value of dividends and interest earned from such securities and gains and losses realized on the sale of such securities. The value of an investment denominated in a foreign currency will decline in U.S. dollar terms if that currency weakens against the U.S. dollar. The Fund may be invested in the local currency of a foreign country in connection with executing foreign securities transactions. When the Fund executes the securities transactions, there is the risk of the value of the foreign currency increasing or decreasing against the value of the U.S. dollar. While the Fund is permitted to hedge currency risks, the Advisor does not anticipate doing so at this time. Additionally, certain countries may restrict foreign investment in their securities and may utilize formal or informal currency-exchange controls or “capital controls.” Capital controls may impose restrictions on the Fund’s ability to repatriate investments or income.  Such capital controls can also have a significant effect on the value of the Fund’s holdings.  Other government actions, such as confiscations, the nationalization of companies, the imposition of sanctions, and trade restrictions (including tariffs), could also negatively impact an investment in a foreign security.
Emerging Markets Risk [Member]  
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Emerging Markets Risk. In addition to the risks of investing in foreign securities in general, the enhanced risks of investing in the securities of companies domiciled in emerging market countries include increased political or social instability, economies based on only a few industries, unstable currencies, runaway inflation, as well as highly volatile, substantially smaller and less liquid securities markets, unpredictable shifts in policies relating to foreign investments, lack of protection for investors against parties that fail to complete transactions, lack of or limited government oversight over securities exchanges and brokers, additional valuation risks, and the potential for government seizure of assets or nationalization of companies or other government interference in which case the Fund could lose all or a significant portion of its investment in a country.
Country Region Risk [Member]  
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Country/Region Risk. Social, political and economic conditions and changes in regulatory, tax, or economic policy in a country or region could significantly affect the market in that country or region. In addition, global economies and financial markets are becoming increasingly interconnected, which increases the possibility that conditions in one country or region might adversely impact the issuers of securities in a different country or region. From time to time, a small number of companies and industries may represent a large portion of the market in a particular country or region and industries can be sensitive to adverse social, political, economic, or regulatory developments.
Indian Market and India Region Risk [Member]  
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Indian Market and India Region Risk. Government actions, bureaucratic obstacles and inconsistent economic and tax reform policies within the Indian government have had a significant effect on the economy and could adversely affect market conditions, deter economic growth and reduce the profitability of private enterprises. Global factors and foreign actions may inhibit the flow of foreign capital on which India is dependent to sustain its growth. Large portions of many Indian companies remain in the hands of their founders (including members of their families). Family-controlled companies may have weaker and less transparent corporate governance, which increases the potential for loss and unequal treatment of investors. India experiences many of the market risks associated with developing economies, including relatively low levels of liquidity, which may result in extreme volatility in the prices of Indian securities. Religious, cultural and military disputes persist in India, and between India and Pakistan (as well as sectarian groups within each country). The threat of aggression in the region could hinder development of the Indian economy, and escalating tensions could impact the broader region, including China. Indian securities may be subject to a short-term capital gains tax in India on gains realized upon the disposition of securities lots held less than one year. The Fund accrues for this potential expense, which reduces its net asset values.
Early Stage Companies Risk [Member]  
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Early Stage Companies Risk. Early stage companies may never obtain necessary financing, may rely on untested business plans, may not be successful in developing markets for their products or services, and may remain an insignificant part of their industry, and as such may never be profitable. Stocks of early stage companies may be illiquid, privately traded, and more volatile and speculative than the securities of larger companies.
Growth Stock Risk [Member]  
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Growth Stock Risk. Growth stock prices may be more sensitive to changes in companies’ current or expected earnings than the prices of other stocks, and growth stock prices may fall or may not appreciate in step with the broader securities markets. Growth companies may be newer or smaller companies and may retain a large part of their earnings for research, development or investments in capital assets.
Sector and Industry Weightings Risk [Member]  
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Sector and Industry Weightings Risk. To the extent the Fund emphasizes, from time to time, investments in a particular sector, the Fund will be subject to a greater degree to the risks particular to that sector, including the sectors described below. Market conditions, interest rates, and economic, political, regulatory, or financial developments could significantly affect all the securities in a single sector. If the Fund invests in a few sectors, it may have increased exposure to the price movements of securities in those sectors. The Fund may also from time to time make significant investments in an industry or industries within a particular sector. The industries that constitute a sector may all react in the same way to economic, political or regulatory events. Adverse conditions in such industry or industries could have a correspondingly adverse effect on the financial condition of issuers. These conditions may cause the value of the Fund’s shares to fluctuate more than the values of shares of funds that invest in a greater variety of investments.
Information Technology Sector Risk [Member]  
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Information Technology Sector Risk. The information technology sector includes companies in the software and services, technology hardware and equipment, and semiconductors and semiconductor equipment industry groups. Companies in the information technology sector are subject to rapid obsolescence of existing technology, short product cycles, falling prices and profits, competition from new market entrants, and general economic conditions. Stocks of companies in the information technology sector, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Technological developments, fixed rate pricing, and the ability to retain skilled employees can significantly affect the industries in the information technology sector.
Industrials Sector Risk [Member]  
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Industrials Sector Risk. The industrials sector includes companies in the capital goods, commercial and professional services and transportation industry groups, including companies engaged in the business of human capital management, business research and consulting, air freight and logistics, transportation services, airlines, maritime shipping and transportation, ground transportation, transportation infrastructure, and aerospace and defense. Companies in the industrials sector can be significantly affected by general economic trends, including such factors as employment and economic growth, interest rate changes, changes in consumer spending, legislative and government regulation and spending, import controls, commodity prices, and worldwide competition. Changes in the economy, fuel prices, labor agreements, and insurance costs may result in occasional sharp price movements in transportation securities. Aerospace and defense companies rely, to a significant extent, on government demand for their products and services. The financial condition of, and investor interest in, aerospace and defense companies are heavily influenced by government defense spending policies.
Financials Sector Risk [Member]  
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Financials Sector Risk. The financials sector includes companies in the banks, financial services, and insurance industry groups. Companies in the financials sector are subject to extensive government regulation, can be subject to relatively rapid change due to increasingly blurred distinctions between service segments, and can be significantly affected by the availability and cost of capital funds, changes in interest rates, the rate of corporate and consumer debt defaults, and price competition. Banking companies, including thrifts and mortgage finance and consumer finance companies, may be affected by extensive government regulation, which may limit both the amounts and types of loans and other financial commitments they can make, the interest rates and fees they can charge, and the amount of capital they must maintain. Profitability is largely dependent on the availability and cost of capital funds, and can fluctuate significantly when interest rates change. Credit losses resulting from financial difficulties of borrowers can negatively affect banking companies. Banking companies may also be subject to severe price competition. Competition is high among banking companies and failure to maintain or increase market share may result in lost market value. Capital markets, a sub-industry of financial services, may be affected by extensive government regulation as well as economic and other financial events that could cause fluctuations in the stock market, impacting the overall value of investments. The insurance industry may be affected by extensive government regulation and can be significantly affected by interest rates, general economic conditions, and price and marketing competition. Different segments of the insurance industry can be significantly affected by natural disasters, mortality and morbidity rates, and environmental clean-up.
Health Care Sector Risk [Member]  
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Health Care Sector Risk. The health care sector includes companies in the health care equipment and services, and pharmaceuticals, biotechnology and life sciences industry groups. Health care companies are strongly affected by worldwide scientific or technological developments. Their products may rapidly become obsolete. Many health care companies are also subject to significant government regulation and may be affected by changes in government policies. Companies in the pharmaceuticals, biotechnology and life sciences industry group in particular are heavily dependent on patent protection, and the expiration of patents may adversely affect the profitability of such companies. These companies are also subject to extensive litigation based on product liability and other similar claims. Many new products are subject to government approval and the process of obtaining government approval can be long and costly, and even approved products are susceptible to obsolescence. These companies are also subject to competitive forces that may make it difficult to increase prices, or that may lead to price reductions.
Initial Public Offerings IPOs Risk [Member]  
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Initial Public Offerings (IPOs) Risk. IPOs involve a higher degree of risk because companies involved in IPOs generally have limited operating histories and their prospects for future profitability are uncertain. Prices of IPOs may also be unstable due to the absence of a prior public market, the small number of shares available for trading and limited investor information.
Operational and Cybersecurity Risk [Member]  
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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]  
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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.
Consumer Discretionary Sector Risk [Member]  
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Consumer Discretionary Sector Risk. The consumer discretionary sector includes companies in industries such as consumer services, household durables, leisure products, textiles, apparel and luxury goods, hotels, restaurants, retailing, and automobiles. Companies in the consumer discretionary sector may be significantly impacted by the performance of the overall domestic and global economy and by interest rates. The consumer discretionary sector relies heavily on disposable household income and spending. Companies in this sector may be subject to severe competition, which may have an adverse impact on their respective profitability. The retail industry can be significantly affected by changes in demographics, and consumer tastes and shopping habits, which can also affect the demand for, and success of, consumer products and services in the marketplace. The automotive industry is highly cyclical and can be significantly affected by labor relations and fluctuating component prices.
Chinese Market and Asia Region Risk [Member]  
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Chinese Market and Asia Region Risk. The value of the Fund’s assets may be adversely affected by, among other things, political, economic, social and religious instability, inadequate investor protection, inadequate accounting standards and practices, changes in laws or regulations of countries within the Asia region, relations with other nations, natural disasters, corruption, civil unrest, and military activity. In particular, China’s economy has a heavy influence on the Asia region, and therefore actions taken by China or developments impacting China and its economy may negatively impact the economies and companies in other countries in the Asia region, including adversely affecting the investments held by a Fund in the Asia region regardless of the direct or indirect exposure the Fund may have to issuers in China. Certain Asian countries have experienced and may in the future experience expropriation and nationalization of assets, confiscatory taxation, currency manipulation, political instability, government influence over the private sector and social instability as a result of religious, ethnic, socio-economic and/or political unrest. Countries in the Asia region, particularly China, Japan and South Korea, also may be adversely
affected by political, military, economic and other factors related to North Korea. In addition, China’s long-running conflict over Taiwan’s sovereignty, border disputes with many neighbors and historically strained relations with Japan could adversely impact economies in the region. The economies of many Asian countries differ from the economies of more developed countries in many respects such as the rate of growth, inflation, capital reinvestment, resource self-sufficiency, financial system stability, and sensitivity to changes in global trade. Certain Asian countries are highly dependent upon and may be affected by developments in the United States, Europe and other Asian economies. Asian economies and companies could be affected if global economic conditions deteriorate as a result of political instability and uncertainty. In addition, international trade could be affected by politically motivated actions in the U.S. and Europe, and by increased tensions with other nations including intensified concerns about trade disputes, tariffs, and potential trade wars.
Taiwan Market Risk [Member]  
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Taiwan Market Risk. The economy of Taiwan is heavily dependent on exports. Currency fluctuations, increasing competition from Asia’s other emerging economies, and conditions that weaken demand for Taiwan’s export products worldwide could have a negative impact on the Taiwanese economy as a whole, and may impact the Fund’s performance to the extent the Fund invests in such securities. Additionally, a disruption in Taiwan’s exports could also result in broader negative economic impacts with respect to those industries and countries that rely upon them. Concerns over Taiwan’s history of political contention and its current relationship with China may also have a significant impact on Taiwan. Any escalation of hostility between China and Taiwan would have a significant adverse impact on the value of investments in both countries and the region, which could negatively affect the value and liquidity of the Fund’s investments.
Small Cap Company Stock Risk [Member]  
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Small Cap Company Stock Risk. Small-cap stocks may be very sensitive to changing economic conditions and market downturns because the issuers often have narrow markets for their products or services, fewer product lines, and more limited managerial and financial resources than larger issuers. The stocks of small-cap companies may therefore be more volatile and the ability to sell these stocks at a desirable time or price may be more limited.
Market Risks [Member]  
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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]  
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Risk [Text Block] All investments carry some degree of risk that will affect the value of the Fund, its investment performance and the price ofits shares. As a result, you may lose money if you invest in the Fund.
Risk Not Insured Depository Institution [Member]  
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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.
Risk Nondiversified Status [Member]  
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Non-Diversification Risk. The Fund can invest a larger portion of its assets in the stocks of a limited number of companies than a diversified fund, which means it may have more exposure to the price movements of a single security or small group of securities than funds that diversify their investments among many companies.