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MATTHEWS ASIA INNOVATORS FUND  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Matthews Asia Innovators Fund
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock
Long-term capital appreciation.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Fund
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock
This table describes the fees and expenses that you may pay if you buy, hold and sell shares of this Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and example below.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption SHAREHOLDER FEES (fees paid directly from your investment)
Operating Expenses Caption [Text] rr_OperatingExpensesCaption ANNUAL OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading PORTFOLIO TURNOVER
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock
The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example of fund expenses, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 248% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 248.00%
Expense Example [Heading] rr_ExpenseExampleHeading EXAMPLE OF FUND EXPENSES
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock
This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then sell all of your shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategy
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock
Under normal circumstances, the Matthews Asia Innovators Fund seeks to achieve its investment objective by investing at least 80% of its net assets, which include borrowings for investment purposes, in the common and preferred stocks of companies located in Asia ex Japan that Matthews believes are innovators in their products, services, processes, business models, management, use of technology, or approach to creating, expanding or servicing their markets. Asia ex Japan consists of all countries and markets in Asia excluding Japan, but including other developed, emerging, and frontier countries and markets in the Asian region. Certain emerging market countries may also be classified as “frontier” market countries, which are a subset of emerging market countries with newer or even less developed economies and markets, such as Sri Lanka and Vietnam.
A company or other issuer is considered to be “located” in a country or a region, and a security or instrument is deemed to be an Asian (or specific country) security or instrument, if it has substantial ties to that country or region. Matthews currently makes that determination based primarily on one or more of the following criteria: (A) with respect to a company or issuer, whether (i) it is organized under the laws of that country or any country in that region; (ii) it derives at least 50% of its revenues or profits from goods produced or sold, investments made, or services performed, or has at least 50% of its assets located, within that country or region; (iii) it has the primary trading markets for its securities in that country or region; (iv) it has its principal place of business in or is otherwise headquartered in that country or region; or (v) it is a governmental entity or an agency, instrumentality or a political subdivision of that country or any country in that region; and (B) with respect to an instrument or issue, whether (i) its issuer is headquartered or organized in that country or region; (ii) it is issued to finance a project that has at least 50% of its assets or operations in that country or region; (iii) it is at least 50% secured or backed by assets located in that country or region; (iv) it is a component of or its issuer is included in the MSCI All Country Asia ex Japan Index, the Fund’s primary benchmark index; or (v) it is denominated in the currency of an Asian country and addresses at least one of the other above criteria. The term “located” and the associated criteria listed above have been defined in such a way that Matthews has latitude in determining whether an issuer should be included within a region or country. The Fund may also invest in depositary receipts, including American, European and Global Depositary Receipts.
It is important to note that there are no universally agreed upon objective standards for assessing innovators. Innovative companies can be both old and new companies. Innovative companies can exist in any industries, old and new, and in any countries, emerging or developed. Companies perceived as innovators in one country or one industry might not be perceived as innovators in another country or another industry. For these reasons, the term innovators may be aspirational and tend to be stated broadly and applied flexibly.
The Fund seeks to invest in companies capable of sustainable growth based on the fundamental characteristics of those companies, including balance sheet information; number of employees; size and stability of cash flow; management’s depth, adaptability and integrity; product lines; marketing strategies; corporate governance; and financial health. The Fund may invest in companies of any size, including smaller size companies. Matthews measures a company’s size with respect to fundamental criteria such as, but not limited to, market capitalization, book value, revenues, profits, cash flow, dividends paid and number of employees. The implementation of the principal investment strategies of the Fund may result in a significant portion of the Fund’s assets being invested from time to time in one or more sectors, but the Fund may invest in companies in any sector. The implementation of the Fund’s principal investment strategies may also result in high portfolio turnover rates.
The Fund has a fundamental policy to invest at least 25% of its net assets, which include borrowings for investment purposes, in the common and preferred stocks of companies that derive more than 50% of their revenues from the sale of
products or services in science‑and technology-related industries and services, which Matthews considers to be the following, among others: telecommunications, telecommunications equipment, computers, semiconductors, semiconductor capital equipment, networking, Internet and online service companies, media, office automation, server hardware producers, software companies (e.g., design, consumer and industrial), biotechnology and medical device technology companies, pharmaceuticals and companies involved in the distribution and servicing of these products.
The Fund may invest in the Matthews Asia Innovators Active ETF, a series of the Trust with a substantially similar investment strategy to the Fund, for cash equitization purposes, which allows the Fund to invest in a manner consistent with its investment strategy while managing daily cash flows, including purchases and redemptions by investors.
Risk [Heading] rr_RiskHeading Principal Risks of Investment
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Past Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock
The bar chart below shows the Fund’s performance for the past 10 years and how it has varied from year to year, reflective of the Fund’s volatility and some indication of risk. Also shown are the best and worst quarters for this time period. The table below shows the Fund’s performance over certain periods of time, along with performance of its benchmark index. The information presented below is past performance, before and after taxes, and is not a prediction of future results. Both the bar chart and performance table assume reinvestment of all dividends and distributions. For the Fund’s most recent month‑end performance, please visit matthewsasia.com or call 800.789.ASIA (2742).
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns The bar chart below shows the Fund’s performance for the past 10 years and how it has varied from year to year, reflective of the Fund’s volatility and some indication of risk.
Performance Availability Phone [Text] rr_PerformanceAvailabilityPhone 800.789.ASIA (2742)
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress matthewsasia.com
Performance Past Does Not Indicate Future [Text] rr_PerformancePastDoesNotIndicateFuture The information presented below is past performance, before and after taxes, and is not a prediction of future results.
Bar Chart [Heading] rr_BarChartHeading INVESTOR CLASS: ANNUAL RETURNS FOR YEARS ENDED 12/31
Bar Chart Closing [Text Block] rr_BarChartClosingTextBlock Best Quarter Q2 2020 38.74% Worst Quarter Q1 2022 -18.93%
Performance Table Heading rr_PerformanceTableHeading AVERAGE ANNUAL TOTAL RETURNS FOR PERIODS ENDED DECEMBER 31, 2023
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate After‑tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes.
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred Actual after‑tax returns depend on an investor’s tax situation and may differ from those shown. After‑tax returns shown are not relevant to investors who hold their Fund shares through tax‑deferred arrangements, such as 401(k) plans or individual retirement accounts.
MATTHEWS ASIA INNOVATORS FUND | Risk Lose Money [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock The value of your investment in the Fund could go down, meaning you could lose money.
MATTHEWS ASIA INNOVATORS FUND | Political Social and Economic Risks of Investing in Asia [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Political, Social and Economic Risks of Investing in Asia: The value of the Fund’s assets may be adversely affected by political, economic, social and religious instability; inadequate investor protection; changes in laws or regulations of countries within the Asian region (including countries in which the Fund invests, as well as the broader region); international relations with other nations; natural disasters; corruption and military activity. The economies of many Asian countries differ from the economies of more developed countries in many respects, such as rate of growth, inflation, capital reinvestment, resource self-sufficiency, financial system stability, the national balance of payments position and sensitivity to changes in global trade.
MATTHEWS ASIA INNOVATORS FUND | Geopolitical Events Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Geopolitical Events Risk: 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. Securities in the Fund’s portfolio may underperform due to inflation (or expectations for inflation), interest rates, global demand for particular products or resources, natural disasters, climate change and climate-related events, pandemics, epidemics, terrorism, international conflicts, regulatory events and governmental or quasi-governmental actions. The occurrence of global events similar to those in recent years may result in market volatility and may have long term effects on the global financial markets.
MATTHEWS ASIA INNOVATORS FUND | Currency Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Currency Risk: When the Fund conducts securities transactions in a foreign currency, there is the risk of the value of the foreign currency increasing or decreasing against the value of the U.S. dollar. 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. While the Fund is permitted to hedge currency risks, Matthews does not anticipate doing so at this time. Additionally, Asian countries 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 controls may also affect the value of the Fund’s holdings.
MATTHEWS ASIA INNOVATORS FUND | Risks Associated with Emerging and Frontier Markets [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Risks Associated with Emerging and Frontier Markets: Many Asian countries are considered emerging or frontier markets. Such markets are often less stable politically and economically than developed markets such as the United States, and investing in these markets involves different and greater risks due to, among other factors, different
accounting standards; variable quality and reliability of financial information and related audits of companies; higher brokerage costs and thinner trading markets as compared to those in developed countries; the possibility of currency transfer restrictions; and the risk of expropriation, nationalization or other adverse political, economic or social developments. There may be less publicly available information about companies in many Asian countries, and the stock exchanges and brokerage industries in many Asian countries typically do not have the level of government oversight as do those in the U.S. Securities markets of many Asian countries are also substantially smaller, less liquid and more volatile than securities markets in the U.S. Additionally, investors may have substantial difficulties bringing legal actions to enforce or protect investors’ rights, which can increase the risks of loss. Frontier markets, a subset of emerging markets, generally have smaller economies and even less mature capital markets than emerging markets. As a result, the risks of investing in emerging market countries are magnified in frontier market countries. Frontier markets are more susceptible to having abrupt changes in currency values, less mature markets and settlement practices, and lower trading volumes, which could lead to greater price volatility and illiquidity.
MATTHEWS ASIA INNOVATORS FUND | Risks Associated with Investing in Innovative Companies [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Risks Associated with Investing in Innovative Companies: The standards for assessing innovative companies tend to have many subjective characteristics, can be difficult to analyze, and frequently involve a balancing of a company’s business plans, objectives, actual conduct and other factors. The definition of innovators can vary over different periods and can evolve over time. They may also be difficult to apply consistently across regions, countries, industries or sectors.
MATTHEWS ASIA INNOVATORS FUND | High Portfolio Turnover Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
High Portfolio Turnover Risk: The Fund’s principal investment strategies may result in high portfolio turnover rates, which may increase the Fund’s brokerage commission costs and negatively impact the Fund’s performance. Such portfolio turnover also may generate higher taxable gains for shareholders of the Fund.
MATTHEWS ASIA INNOVATORS FUND | Growth Stock Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Growth Stock Risk: Growth stocks may be more volatile than other stocks because they are more sensitive to investor perceptions of the issuing company’s growth potential. Growth stocks may go in and out of favor over time and may perform differently than the market as a whole.
MATTHEWS ASIA INNOVATORS FUND | Equity Securities Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Equity Securities Risk: Equity securities may include common stock, preferred stock or other securities representing an ownership interest or the right to acquire an ownership interest in an issuer. Equity risk is the risk that stocks and other equity securities generally fluctuate in value more than bonds and may decline in value over short or extended periods. The value of stocks and other equity securities may be affected by changes in an issuer’s financial condition, factors that affect a particular industry or industries, or as a result of changes in overall market, economic and political conditions that are not specifically related to a company or industry.
MATTHEWS ASIA INNOVATORS FUND | Preferred Stock Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Preferred Stock Risk: Preferred stock normally pays dividends at a specified rate and has precedence over common stock in the event the issuer is liquidated or declares bankruptcy.
However, in the event a company is liquidated or declares bankruptcy, the claims of owners of bonds take precedence over the claims of those who own preferred and common stock. If interest rates rise, the dividend on preferred stocks may be less attractive, causing the price of such stocks to decline.
MATTHEWS ASIA INNOVATORS FUND | Science and Technology Companies Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Science and Technology Companies Risk: As a fund that invests in science and technology companies, the Fund is subject to the risks associated with these industries. This makes the Fund more vulnerable to the price changes of securities issuers in science- and technology-related industries and to factors that affect these industries, relative to a broadly diversified fund. Certain science- and technology-related companies may face special risks because their products or services may not prove to be commercially successful. Many science and technology companies have limited operating histories and experience in managing adverse market conditions, and are also strongly affected by worldwide scientific or technological developments and global demand cycles. As a result, their products may rapidly become obsolete, which could cause a dramatic decrease in the value of their stock. Such companies are also often subject to governmental regulation and may therefore be adversely affected by changes in governmental policies. The possible loss or impairment of intellectual property rights may also negatively impact science and technology companies.
MATTHEWS ASIA INNOVATORS FUND | Concentration Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Concentration Risk: By focusing on a group of industries, the Fund carries much greater risks of adverse developments and price movements in such industries than a fund that invests in a wider variety of industries. Because the Fund concentrates in a group of industries, there is also the risk that the Fund will perform poorly during a slump in demand for securities of companies in such industries.
MATTHEWS ASIA INNOVATORS FUND | Depositary Receipts Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Depositary Receipts Risk: Although depositary receipts have risks similar to the securities that they represent, they may also involve higher expenses and may trade at a discount (or premium) to the underlying security. In addition, depositary receipts may not pass through voting and other shareholder rights, and may be less liquid than the underlying securities listed on an exchange.
MATTHEWS ASIA INNOVATORS FUND | Volatility Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Volatility Risk: The smaller size and lower levels of liquidity in emerging markets, as well as other factors, may result in changes in the prices of Asian securities that are more volatile than those of companies in more developed regions. This volatility can cause the price of the Fund’s shares to go up or down dramatically. Because of this volatility, this Fund is better suited for long-term investors (typically five years or longer).
MATTHEWS ASIA INNOVATORS FUND | Risks Associated with Smaller Companies [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Risks Associated with Smaller Companies: Smaller companies may offer substantial opportunities for capital growth; they also involve substantial risks, and investments in smaller companies may be considered speculative. Such companies often have limited product lines, markets or financial resources. Securities of smaller companies may trade less frequently and in lesser volume than more widely held securities and the securities of smaller companies generally are subject to more abrupt or erratic price movements than more widely held or larger, more established companies or the market indices in general.
MATTHEWS ASIA INNOVATORS FUND | Risks Associated with China and Hong Kong [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Risks Associated with China and Hong Kong: The Chinese government exercises significant control over China’s economy through its industrial policies, monetary policy,
management of currency exchange rates, and management of the payment of foreign currency-denominated obligations. Changes in these policies could adversely impact affected industries or companies in China. China’s economy, particularly its export-oriented industries, may be adversely impacted by trade or political disputes with China’s major trading partners, including the U.S. In addition, as its consumer class continues to grow, China’s domestically oriented industries may be especially sensitive to changes in government policy and investment cycles. As demonstrated by Hong Kong protests in recent years over political, economic, and legal freedoms, and the Chinese government’s response to them, considerable political uncertainty continues to exist within Hong Kong. Due to the interconnected nature of the Hong Kong and Chinese economies, this instability in Hong Kong may cause uncertainty in the Hong Kong and Chinese markets. If China were to exert its authority so as to alter the economic, political or legal structures or the existing social policy of Hong Kong, investor and business confidence in Hong Kong could be negatively affected and have an adverse effect on the Fund’s investments.
MATTHEWS ASIA INNOVATORS FUND | Risks Associated with India [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Risks Associated with India: Government actions, bureaucratic obstacles and inconsistent economic reform within the Indian government have had a significant effect on the Indian economy and could adversely affect market conditions, economic growth and the profitability of private enterprises in India. 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). Corporate governance standards of family- controlled companies may be weaker and less transparent, which increases the potential for loss and unequal treatment of investors. India experiences many of the 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). Both India and Pakistan have tested nuclear arms, and the threat of deployment of such weapons 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 disposition of securities lots held less than one year. The Fund accrues for this potential expense, which reduces its net asset values. For further information regarding this tax, please see page 126.
MATTHEWS ASIA INNOVATORS FUND | Active Management Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Active Management Risk: The Fund is actively managed by Matthews. There is the risk that Matthews may select securities that underperform the relevant stock market(s), the Fund’s benchmark index or other funds with similar investment objectives and investment strategies.
MATTHEWS ASIA INNOVATORS FUND | Sector Concentration Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Sector Concentration Risk: To the extent that 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, regulatory, or financial developments could significantly affect a single sector. By focusing its investments in a particular sector, the Fund may face more risks than if it were diversified broadly over numerous sectors.
–   Information Technology Sector Risk: As of December 31, 2023, 33% of the Fund’s assets were invested in the information technology sector. Information technology companies may be significantly affected by aggressive pricing as a result of intense competition and by rapid product obsolescence due to rapid development of technological innovations and frequent new product introduction. Other factors, such as short product cycle, possible loss or impairment of intellectual property rights, and changes in government regulations, may also adversely impact information technology companies.
–   Consumer Discretionary Sector Risk: As of December 31, 2023, 26% of the Fund’s assets were invested in the consumer discretionary sector. The success of consumer product manufacturers and retailers is tied closely to the performance of the overall local and international economies, interest rates, competition and consumer confidence. Success of companies in the consumer discretionary sector depends heavily on disposable household income and consumer spending. Changes in demographics and consumer tastes can also affect the demand for, and success of, consumer products and services in the marketplace.
MATTHEWS ASIA INNOVATORS FUND | Underlying ETF Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Underlying ETF Risk: Because the Fund may invest in the Matthews Asia Innovators Active ETF, it is subject to additional risks that do not apply to conventional mutual funds, including the risks that the market price of the ETF’s shares may trade at a discount to its net asset value, an active secondary trading market may not develop or be maintained, or trading may be halted by the exchange in which the ETFs trade, which may impact the Fund’s ability to sell its shares of an ETF.
MATTHEWS ASIA INNOVATORS FUND | Cybersecurity Risk [Member]  
Risk/Return: rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock
Cybersecurity Risk: With the increased use of technologies such as the internet to conduct business, the Fund is susceptible to operational, information security, and related risks. Cyber incidents affecting the Fund or its service providers may cause disruptions and impact business operations, potentially resulting in financial losses, interference with the Fund’s ability to calculate its NAV, impediments to trading, the inability of shareholders to transact business, violations of applicable privacy and other laws, regulatory fines, penalties, reputational damage, reimbursement or other compensation costs, or additional compliance costs.
MATTHEWS ASIA INNOVATORS FUND | Investor Class  
Risk/Return: rr_RiskReturnAbstract  
Maximum Account Fee on Redemptions (for wire redemptions only) rr_MaximumAccountFee $ 9
Management Fees rr_ManagementFeesOverAssets 0.68%
Distribution (12b‑1) Fees rr_DistributionAndService12b1FeesOverAssets none
Administration and Shareholder Servicing Fees rr_Component1OtherExpensesOverAssets 0.18%
Other Expenses rr_OtherExpensesOverAssets 0.47%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.15%
One year rr_ExpenseExampleYear01 $ 117
Three years rr_ExpenseExampleYear03 365
Five years rr_ExpenseExampleYear05 633
Ten years rr_ExpenseExampleYear10 $ 1,398
2014 rr_AnnualReturn2014 9.24%
2015 rr_AnnualReturn2015 4.48%
2016 rr_AnnualReturn2016 (9.10%)
2017 rr_AnnualReturn2017 52.88%
2018 rr_AnnualReturn2018 (18.62%)
2019 rr_AnnualReturn2019 29.60%
2020 rr_AnnualReturn2020 86.72%
2021 rr_AnnualReturn2021 (13.10%)
2022 rr_AnnualReturn2022 (24.80%)
2023 rr_AnnualReturn2023 (1.77%)
Highest Quarterly Return, Label rr_HighestQuarterlyReturnLabel Best Quarter
Highest Quarterly Return, Date rr_BarChartHighestQuarterlyReturnDate Jun. 30, 2020
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 38.74%
Lowest Quarterly Return, Label rr_LowestQuarterlyReturnLabel Worst Quarter
Lowest Quarterly Return, Date rr_BarChartLowestQuarterlyReturnDate Mar. 31, 2022
Lowest Quarterly Return rr_BarChartLowestQuarterlyReturn (18.93%)
1 year rr_AverageAnnualReturnYear01 (1.77%)
5 years rr_AverageAnnualReturnYear05 9.21%
10 years rr_AverageAnnualReturnYear10 7.20%
Since Inception rr_AverageAnnualReturnSinceInception 4.20%
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 27, 1999
MATTHEWS ASIA INNOVATORS FUND | Institutional Class  
Risk/Return: rr_RiskReturnAbstract  
Maximum Account Fee on Redemptions (for wire redemptions only) rr_MaximumAccountFee $ 9
Management Fees rr_ManagementFeesOverAssets 0.68%
Distribution (12b‑1) Fees rr_DistributionAndService12b1FeesOverAssets none
Administration and Shareholder Servicing Fees rr_Component1OtherExpensesOverAssets 0.18%
Other Expenses rr_OtherExpensesOverAssets 0.34%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.02%
One year rr_ExpenseExampleYear01 $ 104
Three years rr_ExpenseExampleYear03 325
Five years rr_ExpenseExampleYear05 563
Ten years rr_ExpenseExampleYear10 $ 1,248
1 year rr_AverageAnnualReturnYear01 (1.62%)
5 years rr_AverageAnnualReturnYear05 9.35%
10 years rr_AverageAnnualReturnYear10 7.39%
Since Inception rr_AverageAnnualReturnSinceInception 9.17% [1]
Inception Date rr_AverageAnnualReturnInceptionDate Apr. 30, 2013
MATTHEWS ASIA INNOVATORS FUND | Return after taxes on distributions | Investor Class  
Risk/Return: rr_RiskReturnAbstract  
1 year rr_AverageAnnualReturnYear01 (1.63%) [2]
5 years rr_AverageAnnualReturnYear05 6.89% [2]
10 years rr_AverageAnnualReturnYear10 5.18% [2]
Since Inception rr_AverageAnnualReturnSinceInception 3.31% [2]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 27, 1999 [2]
MATTHEWS ASIA INNOVATORS FUND | Return after taxes on distributions and sale of Fund shares | Investor Class  
Risk/Return: rr_RiskReturnAbstract  
1 year rr_AverageAnnualReturnYear01 (0.91%) [2]
5 years rr_AverageAnnualReturnYear05 7.47% [2]
10 years rr_AverageAnnualReturnYear10 5.64% [2]
Since Inception rr_AverageAnnualReturnSinceInception 3.37% [2]
Inception Date rr_AverageAnnualReturnInceptionDate Dec. 27, 1999 [2]
MATTHEWS ASIA INNOVATORS FUND | MSCI All Country Asia ex Japan Index (reflects no deduction for fees, expenses or taxes)  
Risk/Return: rr_RiskReturnAbstract  
1 year rr_AverageAnnualReturnYear01 6.34%
5 years rr_AverageAnnualReturnYear05 4.01%
10 years rr_AverageAnnualReturnYear10 4.17%
Since Inception rr_AverageAnnualReturnSinceInception 5.45% [3]
[1]
Because the inception date of the Institutional Class is later than that of the Index returns shown, the since-inception performance of the Institutional Class is not directly comparable to the performance of the Index.
[2]
After‑tax returns are calculated using the highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after‑tax returns depend on an investor’s tax situation and may differ from those shown. After‑tax returns shown are not relevant to investors who hold their Fund shares through tax‑deferred arrangements, such as 401(k) plans or individual retirement accounts.
[3]
Calculated from 12/31/99.