Investment Risks |
Feb. 27, 2026 |
|---|---|
| TCW Artificial Intelligence ETF | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. The Fund is subject to certain risks, including the principal risks noted below, any of which may adversely affect the Fund’s net asset value (“NAV”) per share, trading price, yield, total return and ability to meet its investment objective.
|
| TCW Artificial Intelligence ETF | E T F Structure Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ETF Structure Risks. The Fund is structured as an ETF and is subject to special risks, including:
Not Individually Redeemable. Shares are not individually redeemable by retail investors and may be redeemed from the Fund only by Authorized Participants at NAV in large blocks known as “Creation Units.” An Authorized Participant may incur brokerage costs purchasing enough shares to constitute a Creation Unit.
Trading Issues. An active trading market for the Fund’s shares may not be developed or maintained. Trading in shares on the NASDAQ may be halted due to market conditions or for reasons that, in the view of the NASDAQ, make trading in shares inadvisable, such as extraordinary market volatility. There can be no assurance that shares will continue to meet the listing requirements of the NASDAQ. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as Authorized Participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares may trade at a material discount to NAV and possibly face delisting: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Market Price Variance Risk. The market price of the Fund’s shares will fluctuate in response to changes in NAV and supply and demand for shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that shares may trade at a discount to NAV.
Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruptions in the creation/redemption process. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Additionally, in stressed market conditions, the market for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets for a Fund’s portfolio holdings, which may cause a significant variance in the market price of the ETF Class shares and their underlying value as well as an increase in the ETF Class shares’ bid-ask spread.
Fluctuation of Net Asset Value Risk. The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of and demand for the Fund’s shares on the NASDAQ. The Adviser cannot predict whether the shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time.
Authorized Participant Concentration Risk. Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. The Fund has a limited number of institutions that may act as Authorized Participants on an agency basis (i.e., on behalf of other market participants). To the extent that Authorized Participants exit the business or are unable to proceed with creation or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units, Fund shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts or delisting.
|
| TCW Artificial Intelligence ETF | Equity Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Equity Securities Risk. Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The net asset value of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.
|
| TCW Artificial Intelligence ETF | Market Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Market Risk. The Fund could lose money over short periods due to short term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
|
| TCW Artificial Intelligence ETF | Artificial Intelligence Related Companies Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Artificial Intelligence Related Companies Risk. The Fund’s investments in companies involved in, or exposed to, artificial intelligence-related businesses may be negatively impacted because of, among other things, limited product lines, markets, financial resources and/or personnel these companies may have, intense competition and potentially rapid product obsolescence these companies may face, loss or impairment of intellectual property rights, and the inability to successfully develop products or services even after spending significant amount of resources.
|
| TCW Artificial Intelligence ETF | Growth Investing Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Growth Investing Risk. The Fund’s investments in growth stocks may be more volatile than other stocks because they are more sensitive to investor perceptions of the issuing company’s growth potential. The growth investment style may be out of favor or may not produce the best results over short or longer time periods and may increase the volatility of the Fund’s share price. Growth-oriented funds typically underperform when value investing is in favor.
|
| TCW Artificial Intelligence ETF | Active Ownership Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Active Ownership Risk. Active ownership can take any of several forms, including proxy battles, publicity campaigns, and negotiations with management. In the event that an affiliate of the Fund or its investment adviser is engaged in an activist campaign with respect to a portfolio company, the Fund may be foreclosed from taking certain actions with respect to that company as a result of prohibitions on engaging in joint transactions with affiliates under Section 17(d) of the 1940 Act or as a result of other regulatory or fiduciary concerns. In addition, while the Fund intends to seek select opportunities to actively engage with one or more portfolio companies, it may only be able to do so in limited circumstances where no other affiliated fund has elected to do so with respect to the same portfolio companies. The Fund intends to be focused and directed in the selection of opportunities to actively engage with its portfolio companies. However, the foregoing restrictions and priorities may limit the Fund’s ability to engage with some of those select opportunities.
|
| TCW Artificial Intelligence ETF | Non Diversification Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Non-Diversification Risk. Non-diversification risk is the risk that the Fund may be more susceptible to any single economic, political or regulatory event than a diversified fund because of a higher percentage of the Fund’s assets may be invested in the securities of a limited number of issuers.
|
| TCW Artificial Intelligence ETF | Concentration Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Concentration Risk. The Fund may be susceptible to an increased risk of loss, including losses due to adverse events that affect the Fund’s investments more than the market as a whole, to the extent that the Fund’s investments are concentrated in the securities and/or other assets of a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class.
|
| TCW Artificial Intelligence ETF | Active Management Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Active Management Risk. The Fund is actively managed, which means that investment decisions are made based on the Adviser’s investment views. There is no guarantee that the investment views will produce the desired results or expected returns, which may cause the Fund to fail to meet its investment objective or to underperform its benchmark index or funds with similar investment objectives and strategies. Furthermore, active trading that can accompany active management may result in high portfolio turnover, which may have a negative impact on performance. Active trading may result in higher brokerage costs or mark-up charges, which are ultimately passed on to shareholders of the Fund. Active trading may also result in adverse tax consequences.
|
| TCW Artificial Intelligence ETF | Sector Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Sector Risk. The Fund may focus its investments in securities of a particular sector. Economic, legislative or regulatory developments may occur that significantly affect the sector. This may cause the Fund’s NAV to fluctuate more than that of a fund that does not focus on a particular sector.
Consumer Discretionary Sector Risk. The success of consumer product manufacturers and retailers is tied closely to the performance of domestic and international economies, interest rates, exchange rates, competition, consumer confidence, changes in demographics and consumer preferences. Companies in the consumer discretionary sector depend heavily on disposable household income and consumer spending and may be strongly affected by social trends and marketing campaigns. These companies may be subject to severe competition, which may have an adverse impact on their profitability.
Communications Services Sector Risk. The Fund is generally expected to invest in companies in the communications services sector, and therefore the performance of the Fund could be negatively impacted by events affecting this sector. Communications services companies are subject to extensive government regulation. The costs of complying with governmental regulations, delays or failure to receive required regulatory approvals, or the enactment of new adverse regulatory requirements may adversely affect the business of such companies.
Companies in the communications services sector can also be significantly affected by intense competition, product compatibility, consumer preferences, rapid product obsolescence, and research and development of new products.
Healthcare Sector Risk. The profitability of companies in the healthcare sector may be adversely affected by the following factors, among others: extensive government regulations, restrictions on government reimbursement for medical expenses, rising costs of medical products and services, pricing pressure, an increased emphasis on outpatient services, changes in the demand for medical products and services, a limited number of products, industry innovation, changes in technologies and other market developments.
Industrials Sector Risk. The Fund may be susceptible to the impact of market, economic, regulatory, and other factors affecting the industrials sector and the value of the Fund may fluctuate more widely than it would for a fund that invests more broadly across varying sectors. Companies in the industrials sector may be affected by the overall economic conditions as well as by factors particular to the industrial sector, including changes in the supply of and demand for products and services, changes in consumer sentiment and spending, product obsolescence, changes in commodity prices, depletion of resources, claims for environmental damages or product liability, import controls, and competition.
Technology Sector Risk. Companies in the technology sector can be significantly affected by rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability. Additionally, companies in the technology sector may face dramatic and often unpredictable changes in growth rates and competition of the services of qualified personnel.
Real Estate Sector Risk. The real estate sector includes companies involved in commercial, residential and industrial real estate and includes shares of real estate investment trusts (“REITs”) and other real estate related securities. Property values or revenues from real estate investments may fall due to many different factors, including: disruptions to real estate sales markets, increased vacancies or declining rents, negative economic developments affecting businesses or individuals, increased real estate operating costs, lower real estate demand, oversupply, obsolescence, competition, uninsured casualty losses, condemnation losses, environmental liabilities, the failure of borrowers to repay loans in a timely manner, changes in prevailing interest rates or rates of inflation, lack of available credit or changes in federal or state taxation policies affecting real estate. The price of a real estate company’s securities may also drop because of dividend reductions, lowered credit ratings, poor company management, or other factors that affect companies in general.
|
| TCW Artificial Intelligence ETF | American Depositary Receipt A D R Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | American Depositary Receipt (“ADR”) Risk. ADRs are receipts issued by US banks evidencing ownership in securities of foreign issuers. Securities of foreign issuers, and consequently ADRs, may decrease in value due to changes in currency exchange rates, the economic climate in the issuer’s home country or for a variety of other reasons.
|
| TCW Artificial Intelligence ETF | Foreign Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Securities Risk. The Fund may have exposure to foreign markets as a result of its investments in foreign securities and securities denominated in foreign currencies. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. There may be less information publicly available about a non-U.S. issuer than a U.S. issuer. Non-U.S. issuers may be subject to different accounting, auditing, financial reporting and investor protection standards than U.S. issuers. Investments in non-U.S. securities may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. Because legal systems differ, there is also the possibility that there may not be protection against failure by other parties to complete transactions, and that it will be difficult to obtain or enforce legal judgments in certain countries. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. Each of these factors can make investments in the Fund more volatile and potentially less liquid than other types of investments.
|
| TCW Artificial Intelligence ETF | Emerging Markets Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Emerging Markets Risk. Investments in securities and instruments traded in developing or emerging markets, or that provide exposure to such securities or markets, can involve additional risks relating to political, economic, or regulatory conditions not associated with investments in U.S. securities and instruments. Such risks may impact the ability of the Fund to buy, sell or otherwise transfer securities, adversely affect the trading market and price for shares and cause the Fund to decline in value.
|
| TCW Artificial Intelligence ETF | Pipes Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | PIPEs Risk. PIPEs are securities purchased in a private placement that are issued by issuers who have outstanding, publicly-traded equity securities. Shares issued in PIPEs are not registered with the SEC and may not be sold unless registered with the SEC or pursuant to an exemption from registration. Generally, an issuer of shares in a PIPE may agree to register the shares after a certain period from the date of the private sale. This restricted period can last many months. Until the public registration process is completed, the resale of the PIPE shares is restricted. Generally, such restrictions cause the PIPE shares to be illiquid during this time. If the issuer does not agree to register the PIPE shares, the shares will remain restricted, not be freely tradable and may only be sold pursuant to an exemption from registration. Even if the PIPE shares are registered for resale, there is no assurance that the registration will be in effect at the time the Fund elects to sell the shares.
|
| TCW Artificial Intelligence ETF | Issuer Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Issuer Risk. The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. Changes in the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline.
|
| TCW Artificial Intelligence ETF | Price Volatility Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Price Volatility Risk. The value of the Fund’s investment portfolio will change as the prices of its investments go up or down.
|
| TCW Artificial Intelligence ETF | Securities Selection Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Selection Risk. The securities held by the Fund may underperform those held by other funds investing in the same asset class or benchmarks that are representative of the asset class because of the portfolio managers’ choice of securities.
|
| TCW Artificial Intelligence ETF | Risk Of Investing In The U S [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Risk of Investing in the U.S. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure.
|
| TCW Artificial Intelligence ETF | Securities Lending Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Lending Risk. The Fund may engage in securities lending. Securities lending involves the risk that the Fund may lose money because the borrower of the loaned securities fails to return the securities in a timely manner or at all. The Fund could also lose money in the event of a decline in the value of collateral provided for loaned securities or a decline in the value of any investments made with cash collateral. |
| TCW Artificial Intelligence ETF | Risk Lose Money [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. |
| TCW Artificial Intelligence ETF | Risk Nondiversified Status [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Non-diversification risk is the risk that the Fund may be more susceptible to any single economic, political or regulatory event than a diversified fund because of a higher percentage of the Fund’s assets may be invested in the securities of a limited number of issuers. |
| TCW Compounders ETF | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. The Fund is subject to certain risks, including the principal risks noted below, any of which may adversely affect the Fund’s net asset value (“NAV”) per share, trading price, yield, total return and ability to meet its investment objective.
|
| TCW Compounders ETF | E T F Structure Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ETF Structure Risks. The Fund is structured as an ETF and is subject to special risks, including:
Not Individually Redeemable. Shares are not individually redeemable by retail investors and may be redeemed from the Fund only by Authorized Participants at NAV in large blocks known as “Creation Units.” An Authorized Participant may incur brokerage costs purchasing enough shares to constitute a Creation Unit.
Trading Issues. An active trading market for the Fund’s shares may not be developed or maintained. Trading in shares on the NASDAQ may be halted due to market conditions or for reasons that, in the view of the NASDAQ, make trading in shares inadvisable, such as extraordinary market volatility. There can be no assurance that shares will continue to meet the listing requirements of the NASDAQ. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as Authorized Participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares may trade at a material discount to NAV and possibly face delisting: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Market Price Variance Risk. The market price of the Fund’s shares will fluctuate in response to changes in NAV and supply and demand for shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that shares may trade at a discount to NAV.
Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruptions in the creation/redemption process. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Additionally, in stressed market conditions, the market for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets for a Fund’s portfolio holdings, which may cause a significant variance in the market price of the ETF Class shares and their underlying value as well as an increase in the ETF Class shares’ bid-ask spread.
Fluctuation of Net Asset Value Risk. The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of and demand for the Fund’s shares on the NASDAQ. The Adviser cannot predict whether the shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time.
Authorized Participant Concentration Risk. Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. The Fund has a limited number of institutions that may act as Authorized Participants on an agency basis (i.e., on behalf of other market participants). To the extent that Authorized Participants exit the business or are unable to proceed with creation or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units, Fund shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts or delisting.
|
| TCW Compounders ETF | Equity Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Equity Securities Risk. Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The net asset value of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.
|
| TCW Compounders ETF | Market Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Market Risk. The Fund could lose money over short periods due to short term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
|
| TCW Compounders ETF | Growth Investing Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Growth Investing Risk. The Fund’s investments in growth stocks may be more volatile than other stocks because they are more sensitive to investor perceptions of the issuing company’s growth potential. The growth investment style may be out of favor or may not produce the best results over short or longer time periods and may increase the volatility of the Fund’s share price. Growth-oriented funds typically underperform when value investing is in favor.
|
| TCW Compounders ETF | Active Ownership Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Active Ownership Risk. Active ownership can take any of several forms, including proxy battles, publicity campaigns, and negotiations with management. In the event that an affiliate of the Fund or its investment adviser is engaged in an activist campaign with respect to a portfolio company, the Fund may be foreclosed from taking certain actions with respect to that company as a result of prohibitions on engaging in joint transactions with affiliates under Section 17(d) of the 1940 Act or as a result of other regulatory or fiduciary concerns. In addition, while the Fund intends to seek select opportunities to actively engage with one or more portfolio companies, it may only be able to do so in limited circumstances where no other affiliated fund has elected to do so with respect to the same portfolio companies. The Fund intends to be focused and directed in the selection of opportunities to actively engage with its portfolio companies. However, the foregoing restrictions and priorities may limit the Fund’s ability to engage with some of those select opportunities.
|
| TCW Compounders ETF | Non Diversification Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Non-Diversification Risk. Non-diversification risk is the risk that the Fund may be more susceptible to any single economic, political or regulatory event than a diversified fund because of a higher percentage of the Fund’s assets may be invested in the securities of a limited number of issuers.
|
| TCW Compounders ETF | Concentration Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Concentration Risk. The Fund may be susceptible to an increased risk of loss, including losses due to adverse events that affect the Fund’s investments more than the market as a whole, to the extent that the Fund’s investments are concentrated in the securities and/or other assets of a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class.
|
| TCW Compounders ETF | Active Management Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Active Management Risk. The Fund is actively managed, which means that investment decisions are made based on the Adviser’s investment views. There is no guarantee that the investment views will produce the desired results or expected returns, which may cause the Fund to fail to meet its investment objective or to underperform its benchmark index or funds with similar investment objectives and strategies. Furthermore, active trading that can accompany active management may result in high portfolio turnover, which may have a negative impact on performance. Active trading may result in higher brokerage costs or mark-up charges, which are ultimately passed on to shareholders of the Fund. Active trading may also result in adverse tax consequences.
|
| TCW Compounders ETF | Sector Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Sector Risk. The Fund may focus its investments in securities of a particular sector. Economic, legislative or regulatory developments may occur that significantly affect the sector. This may cause the Fund’s NAV to fluctuate more than that of a fund that does not focus on a particular sector.
Financial Sector Risk. Companies in the financial sector of an economy are subject to extensive governmental regulation and intervention, which may adversely affect the scope of their activities, the prices they can charge, the amount of capital they must maintain and, potentially, their size. The extent to which the Fund may invest in a company that engages in securities-related activities or banking is limited by applicable law. Governmental regulation may change frequently and may have significant adverse consequences for companies in the financial sector, including effects not intended by such regulation. Certain risks may impact the value of investments in the financial sector more severely than those of investments outside this sector, including the risks associated with companies that operate with substantial financial leverage. Companies in the financial sector may also be adversely affected by increases in interest rates and loan losses, decreases in the availability of money or asset valuations, credit rating downgrades and adverse conditions in other related markets. The financial sector is particularly sensitive to fluctuations in interest rates. The financial sector is also a target for cyberattacks and may experience technology malfunctions and disruptions.
Technology Sector Risk. Companies in the technology sector can be significantly affected by rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability. Additionally, companies in the technology sector may face dramatic and often unpredictable changes in growth rates and competition of the services of qualified personnel.
|
| TCW Compounders ETF | American Depositary Receipt A D R Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | American Depositary Receipt (“ADR”) Risk. ADRs are receipts issued by US banks evidencing ownership in securities of foreign issuers. Securities of foreign issuers, and consequently ADRs, may decrease in value due to changes in currency exchange rates, the economic climate in the issuer’s home country or for a variety of other reasons.
|
| TCW Compounders ETF | Foreign Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Securities Risk. The Fund may have exposure to foreign markets as a result of its investments in foreign securities and securities denominated in foreign currencies. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. There may be less information publicly available about a non-U.S. issuer than a U.S. issuer. Non-U.S. issuers may be subject to different accounting, auditing, financial reporting and investor protection standards than U.S. issuers. Investments in non-U.S. securities may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. Because legal systems differ, there is also the possibility that there may not be protection against failure by other parties to complete transactions, and that it will be difficult to obtain or enforce legal judgments in certain countries. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. Each of these factors can make investments in the Fund more volatile and potentially less liquid than other types of investments.
|
| TCW Compounders ETF | Emerging Markets Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Emerging Markets Risk. Investments in securities and instruments traded in developing or emerging markets, or that provide exposure to such securities or markets, can involve additional risks relating to political, economic, or regulatory conditions not associated with investments in U.S. securities and instruments. Such risks may impact the ability of the Fund to buy, sell or otherwise transfer securities, adversely affect the trading market and price for shares and cause the Fund to decline in value.
|
| TCW Compounders ETF | Issuer Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Issuer Risk. The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. Changes in the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline.
|
| TCW Compounders ETF | Price Volatility Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Price Volatility Risk. The value of the Fund’s investment portfolio will change as the prices of its investments go up or down.
|
| TCW Compounders ETF | Securities Selection Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Selection Risk. The securities held by the Fund may underperform those held by other funds investing in the same asset class or benchmarks that are representative of the asset class because of the portfolio managers’ choice of securities.
|
| TCW Compounders ETF | Risk Of Investing In The U S [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Risk of Investing in the U.S. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure.
|
| TCW Compounders ETF | Securities Lending Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Lending Risk. The Fund may engage in securities lending. Securities lending involves the risk that the Fund may lose money because the borrower of the loaned securities fails to return the securities in a timely manner or at all. The Fund could also lose money in the event of a decline in the value of collateral provided for loaned securities or a decline in the value of any investments made with cash collateral. |
| TCW Compounders ETF | Value Investing Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Value Investing Risk. Undervalued stocks may not realize their perceived value for extended periods of time or may never realize their perceived value. Value stocks may respond differently to market and other developments than other types of stocks. The value investment style may be out of favor or may not produce the best results over short or longer time periods and may increase the volatility of the Fund’s share price. Value-oriented funds typically underperform when growth investing is in favor.
|
| TCW Compounders ETF | P I P Es Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | PIPEs Risk. PIPEs are securities purchased in a private placement that are issued by issuers who have outstanding, publicly-traded equity securities. Shares issued in PIPEs are not registered with the SEC and may not be sold unless registered with the SEC or pursuant to an exemption from registration. Generally, an issuer of shares in a PIPE may agree to register the shares after a certain period from the date of the private sale. This restricted period can last many months. Until the public registration process is completed, the resale of the PIPE shares is restricted. Generally, such restrictions cause the PIPE shares to be illiquid during this time. If the issuer does not agree to register the PIPE shares, the shares will remain restricted, not be freely tradable and may only be sold pursuant to an exemption from registration. Even if the PIPE shares are registered for resale, there is no assurance that the registration will be in effect at the time the Fund elects to sell the shares.
|
| TCW Compounders ETF | Liquidity Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Liquidity Risk. Lack of a ready market or restrictions on resale may limit the ability of the Fund to sell a security at an advantageous time or price. The liquidity of the Fund’s assets may change over time.
|
| TCW Compounders ETF | Private Placement Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Private Placement Risk. Privately issued securities are restricted securities that are not publicly traded, and may be less liquid than those that are publicly traded. Accordingly, the Fund may not be able to redeem or resell its interests in a privately issued security at an advantageous time or at an advantageous price which may result in a loss to the Fund.
|
| TCW Compounders ETF | Frequent Trading Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Frequent Trading Risk. Frequent trading leads to increased portfolio turnover and higher transaction costs, which may reduce the Fund’s performance and may cause higher levels of current tax liability to shareholders in the Fund.
|
| TCW Compounders ETF | Risk Lose Money [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. |
| TCW Compounders ETF | Risk Nondiversified Status [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Non-diversification risk is the risk that the Fund may be more susceptible to any single economic, political or regulatory event than a diversified fund because of a higher percentage of the Fund’s assets may be invested in the securities of a limited number of issuers. |
| TCW Transform 500 ETF | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. The Fund is subject to certain risks, including the principal risks noted below, any of which may adversely affect the Fund’s net asset value (“NAV”) per share, trading price, yield, total return and ability to meet its investment objective.
|
| TCW Transform 500 ETF | E T F Structure Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ETF Structure Risks. The Fund is structured as an ETF and is subject to special risks, including:
Not Individually Redeemable. Shares are not individually redeemable by retail investors and may be redeemed from the Fund only by Authorized Participants at NAV in large blocks known as “Creation Units.” An Authorized Participant may incur brokerage costs purchasing enough shares to constitute a Creation Unit.
Trading Issues. An active trading market for the Fund’s shares may not be developed or maintained. Trading in shares on the NASDAQ may be halted due to market conditions or for reasons that, in the view of the NASDAQ, make trading in shares inadvisable, such as extraordinary market volatility. There can be no assurance that shares will continue to meet the listing requirements of the NASDAQ. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as Authorized Participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares may trade at a material discount to NAV and possibly face delisting: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Market Price Variance Risk. The market price of the Fund’s shares will fluctuate in response to changes in NAV and supply and demand for shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that shares may trade at a discount to NAV.
Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruptions in the creation/redemption process. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Additionally, in stressed market conditions, the market for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets for a Fund’s portfolio holdings, which may cause a significant variance in the market price of the ETF Class shares and their underlying value as well as an increase in the ETF Class shares’ bid-ask spread.
Fluctuation of Net Asset Value Risk. The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of and demand for the Fund’s shares on the NASDAQ. The Adviser cannot predict whether the shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time.
Authorized Participant Concentration Risk. Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. The Fund has a limited number of institutions that may act as Authorized Participants on an agency basis (i.e., on behalf of other market participants). To the extent that Authorized Participants exit the business or are unable to proceed with creation or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units, Fund shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts or delisting.
|
| TCW Transform 500 ETF | Equity Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Equity Securities Risk. Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The net asset value of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.
|
| TCW Transform 500 ETF | Market Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Market Risk. The Fund could lose money over short periods due to short term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
|
| TCW Transform 500 ETF | Active Ownership Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Active Ownership Risk. Active ownership can take any of several forms, including proxy battles, publicity campaigns, and negotiations with management. In the event that an affiliate of the Fund or its investment adviser is engaged in an activist campaign with respect to a portfolio company, the Fund may be foreclosed from taking certain actions with respect to that company as a result of prohibitions on engaging in joint transactions with affiliates under Section 17(d) of the 1940 Act or as a result of other regulatory or fiduciary concerns. In addition, while the Fund intends to seek select opportunities to actively engage with one or more portfolio companies, it may only be able to do so in limited circumstances where no other affiliated fund has elected to do so with respect to the same portfolio companies. The Fund intends to be focused and directed in the selection of opportunities to actively engage with its portfolio companies. However, the foregoing restrictions and priorities may limit the Fund’s ability to engage with some of those select opportunities.
|
| TCW Transform 500 ETF | Non Diversification Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Non-Diversification Risk. In seeking to track its Underlying Index, the Fund may become non-diversified solely as a result of a change in relative market capitalization or index weighting of one or more constituents of the Underlying Index. In such circumstances, the Fund may be more susceptible to any economic, political or regulatory event than a diversified fund because a higher percentage of the Fund’s assets may in such circumstances be invested in the securities of a limited number of issuers. This may negatively impact the Fund’s performance and may result in the Fund’s shares experiencing significant fluctuations in value. |
| TCW Transform 500 ETF | Concentration Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Concentration Risk. The Fund may be susceptible to an increased risk of loss, including losses due to adverse events that affect the Fund’s investments more than the market as a whole, to the extent that the Fund’s investments are concentrated in the securities and/or other assets of a particular issuer or issuers, country, group of countries, region, market, industry, group of industries, sector or asset class.
|
| TCW Transform 500 ETF | American Depositary Receipt A D R Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | American Depositary Receipt (“ADR”) Risk. ADRs are receipts issued by US banks evidencing ownership in securities of foreign issuers. Securities of foreign issuers, and consequently ADRs, may decrease in value due to changes in currency exchange rates, the economic climate in the issuer’s home country or for a variety of other reasons.
|
| TCW Transform 500 ETF | Issuer Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Issuer Risk. The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. Changes in the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline.
|
| TCW Transform 500 ETF | Risk Of Investing In The U S [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Risk of Investing in the U.S. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure.
|
| TCW Transform 500 ETF | Securities Lending Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Lending Risk. The Fund may engage in securities lending. Securities lending involves the risk that the Fund may lose money because the borrower of the loaned securities fails to return the securities in a timely manner or at all. The Fund could also lose money in the event of a decline in the value of collateral provided for loaned securities or a decline in the value of any investments made with cash collateral.
|
| TCW Transform 500 ETF | Index Related Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Index-Related Risk. There is no guarantee that the Fund will achieve its investment objective. Market disruptions and regulatory restrictions could have an adverse effect on the Fund’s ability to adjust its exposure to the required levels in order to closely correspond to the Underlying Index. Errors in index data, index computations or the construction of the Underlying Index in accordance with its methodology may occur from time to time and may not be identified and corrected by the Index Provider for a period of time or at all, which may have an adverse impact on the Fund and its shareholders. Unusual market conditions may cause the Index Provider to postpone a scheduled rebalance, which could cause the Underlying Index to vary from its normal or expected composition.
|
| TCW Transform 500 ETF | Tracking Error Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Tracking Error Risk. The Fund may be subject to tracking error, which is the divergence of the Fund’s performance from that of the Underlying Index. Tracking error may occur because of differences between the securities and other instruments held in the Fund’s portfolio and those included in the Underlying Index, pricing differences, transaction costs incurred by the Fund, the Fund’s holding of uninvested cash, differences in timing of the accrual of or the valuation of dividends or interest, the requirements to maintain tax treatment or the consequences of other tax structuring, portfolio transactions carried out to minimize the distribution of capital gains to shareholders, acceptance of custom baskets, changes to the Underlying Index or the costs to the Fund of complying with various new or existing regulatory requirements. This risk may be heightened during times of increased market volatility or other unusual market conditions. Tracking error also may result because the Fund incurs fees and expenses, while the Underlying Index does not.
|
| TCW Transform 500 ETF | Passive Investment Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Passive Investment Risk. The Fund is not actively managed, and the Adviser generally does not attempt to take defensive positions under any market conditions, including declining markets.
|
| TCW Transform 500 ETF | Risk Of Reliance On Third Party Data Sources [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Risk of Reliance on Third-Party Data Sources. The Adviser intends to evaluate its portfolio companies in part through the use of third-party data sources. The data provided by such third parties may be limited or only take into account one, or a few, of many related components of portfolio companies. As a result, the approach taken by the Fund with respect to a specific portfolio company may differ materially depending upon which third party data source or sources it uses. The Fund’s reliance upon such third-party data sources may also expose it to data errors on the part of such sources.
|
| TCW Transform 500 ETF | Risk Lose Money [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. |
| TCW Transform 500 ETF | Risk Nondiversified Status [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | In seeking to track its Underlying Index, the Fund may become non-diversified solely as a result of a change in relative market capitalization or index weighting of one or more constituents of the Underlying Index. In such circumstances, the Fund may be more susceptible to any economic, political or regulatory event than a diversified fund because a higher percentage of the Fund’s assets may in such circumstances be invested in the securities of a limited number of issuers. This may negatively impact the Fund’s performance and may result in the Fund’s shares experiencing significant fluctuations in value. |
| TCW Transform Supply Chain ETF | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. The Fund is subject to certain risks, including the principal risks noted below, any of which may adversely affect the Fund’s net asset value (“NAV”) per share, trading price, yield, total return and ability to meet its investment objective.
|
| TCW Transform Supply Chain ETF | E T F Structure Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ETF Structure Risks. The Fund is structured as an ETF and is subject to the special risks, including:
Not Individually Redeemable. Shares are not individually redeemable by retail investors and may be redeemed from the Fund only by Authorized Participants at NAV in large blocks known as “Creation Units.” An Authorized Participant may incur brokerage costs purchasing enough shares to constitute a Creation Unit.
Trading Issues. An active trading market for the Fund’s shares may not be developed or maintained. Trading in shares on the NASDAQ may be halted due to market conditions or for reasons that, in the view of the NASDAQ, make trading in shares inadvisable, such as extraordinary market volatility. There can be no assurance that shares will continue to meet the listing requirements of the NASDAQ. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as Authorized Participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares may trade at a material discount to NAV and possibly face delisting: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Market Price Variance Risk. The market price of the Fund’s shares will fluctuate in response to changes in NAV and supply and demand for shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that shares may trade at a discount to NAV.
Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruptions in the creation/redemption process. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Additionally, in stressed market conditions, the market for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets for a Fund’s portfolio holdings, which may cause a significant variance in the market price of the ETF Class shares and their underlying value as well as an increase in the ETF Class shares’ bid-ask spread.
Fluctuation of Net Asset Value Risk. The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of and demand for the Fund’s shares on the NASDAQ. The Adviser cannot predict whether the shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time.
Authorized Participant Concentration Risk. Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. The Fund has a limited number of institutions that may act as Authorized Participants on an agency basis (i.e., on behalf of other market participants). To the extent that Authorized Participants exit the business or are unable to proceed with creation or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units, Fund shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts or delisting.
|
| TCW Transform Supply Chain ETF | Equity Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Equity Securities Risk. Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The net asset value of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.
|
| TCW Transform Supply Chain ETF | Market Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Market Risk. The Fund could lose money over short periods due to short term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
|
| TCW Transform Supply Chain ETF | Active Ownership Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Active Ownership Risk. Active ownership can take any of several forms, including proxy battles, publicity campaigns, and negotiations with management. In the event that an affiliate of the Fund or its investment adviser is engaged in an activist campaign with respect to a portfolio company, the Fund may be foreclosed from taking certain actions with respect to that company as a result of prohibitions on engaging in joint transactions with affiliates under Section 17(d) of the Investment Company Act of 1940, as amended (the “1940 Act”) or as a result of other regulatory or fiduciary concerns. In addition, while the Fund intends to seek select opportunities to actively engage with one or more portfolio companies, it may only be able to do so in limited circumstances where no other affiliated fund has elected to do so with respect to the same portfolio companies. The Fund intends to be focused and directed in the selection of opportunities to actively engage with its portfolio companies. However, the foregoing restrictions and priorities may limit the Fund’s ability to engage with some of those select opportunities.
|
| TCW Transform Supply Chain ETF | Non Diversification Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Non-Diversification Risk. Non-diversification risk is the risk that the Fund may be more susceptible to any single economic, political or regulatory event than a diversified fund because of a higher percentage of the Fund’s assets may be invested in the securities of a limited number of issuers.
|
| TCW Transform Supply Chain ETF | Active Management Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Active Management Risk. The Fund is actively managed, which means that investment decisions are made based on the Adviser’s investment views. There is no guarantee that the investment views will produce the desired results or expected returns, which may cause the Fund to fail to meet its investment objective or to underperform its benchmark index or funds with similar investment objectives and strategies. Furthermore, active trading that can accompany active management may result in high portfolio turnover, which may have a negative impact on performance. Active trading may result in higher brokerage costs or mark-up charges, which are ultimately passed on to shareholders of the Fund. Active trading may also result in adverse tax consequences.
|
| TCW Transform Supply Chain ETF | American Depositary Receipt A D R Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | American Depositary Receipt (“ADR”) Risk. ADRs are receipts issued by US banks evidencing ownership in securities of foreign issuers. Securities of foreign issuers, and consequently ADRs, may decrease in value due to changes in currency exchange rates, the economic climate in the issuer’s home country or for a variety of other reasons.
|
| TCW Transform Supply Chain ETF | Foreign Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Securities Risk. The Fund may have exposure to foreign markets as a result of its investments in foreign securities and securities denominated in foreign currencies. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. There may be less information publicly available about a non-U.S. issuer than a U.S. issuer. Non-U.S. issuers may be subject to different accounting, auditing, financial reporting and investor protection standards than U.S. issuers. Investments in non-U.S. securities may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. Because legal systems differ, there is also the possibility that there may not be protection against failure by other parties to complete transactions, and that it will be difficult to obtain or enforce legal judgments in certain countries. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. Each of these factors can make investments in the Fund more volatile and potentially less liquid than other types of investments.
|
| TCW Transform Supply Chain ETF | Emerging Markets Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Emerging Markets Risk. Investments in securities and instruments traded in developing or emerging markets, or that provide exposure to such securities or markets, can involve additional risks relating to political, economic, or regulatory conditions not associated with investments in U.S. securities and instruments. Such risks may impact the ability of the Fund to buy, sell or otherwise transfer securities, adversely affect the trading market and price for shares and cause the Fund to decline in value.
|
| TCW Transform Supply Chain ETF | Issuer Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Issuer Risk. The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. Changes in the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline.
|
| TCW Transform Supply Chain ETF | Risk Of Investing In The U S [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Risk of Investing in the U.S. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure.
|
| TCW Transform Supply Chain ETF | Securities Lending Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Lending Risk. The Fund may engage in securities lending. Securities lending involves the risk that the Fund may lose money because the borrower of the loaned securities fails to return the securities in a timely manner or at all. The Fund could also lose money in the event of a decline in the value of collateral provided for loaned securities or a decline in the value of any investments made with cash collateral.
|
| TCW Transform Supply Chain ETF | P I P Es Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | PIPEs Risk. PIPEs are securities purchased in a private placement that are issued by issuers who have outstanding, publicly-traded equity securities. Shares issued in PIPEs are not registered with the SEC and may not be sold unless registered with the SEC or pursuant to an exemption from registration. Generally, an issuer of shares in a PIPE may agree to register the shares after a certain period from the date of the private sale. This restricted period can last many months. Until the public registration process is completed, the resale of the PIPE shares is restricted. Generally, such restrictions cause the PIPE shares to be illiquid during this time. If the issuer does not agree to register the PIPE shares, the shares will remain restricted, not be freely tradable and may only be sold pursuant to an exemption from registration. Even if the PIPE shares are registered for resale, there is no assurance that the registration will be in effect at the time the Fund elects to sell the shares.
|
| TCW Transform Supply Chain ETF | Risk Of Reliance On Third Party Data Sources [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Risk of Reliance on Third-Party Data Sources. The Adviser intends to evaluate its portfolio companies in part through the use of environmental and governance metrics that will be tested, among other ways, through the use of information sourced from publicly available data sources. For example, the environmental and governance criteria used by the Adviser in seeking to encourage accountability, change acceleration or transformational change at the public companies within the Fund’s portfolio incorporates data made available by third parties. In addition, the proxy voting guidelines developed by the Adviser will employ similar metrics that will likewise be evaluated with the assistance of third-party data sources. The data provided by such third parties, though, may be limited or only take into account one, or a few, of many related components of portfolio companies. In addition, environmental and governance information across third party data sources, indexes and other funds may differ substantially and/or be incomparable. As a result, the approach taken by the Fund with respect to a specific portfolio company may differ materially depending upon which third party data source or sources it uses. The Fund’s reliance upon such third-party data sources may also expose it to data errors on the part of such sources. |
| TCW Transform Supply Chain ETF | Supply Chain Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Supply Chain Risks. Companies’ supply chains are generally subject to risk such as legislative or regulatory changes; adverse market conditions and/or increased competition; technological developments and changing technology; cyberattacks that may compromise a company’s operations or business; occasional sharp price movements which may result from changes in the economy, fuel prices, labor agreements, exchange rate movements, and insurance costs; pandemics, natural disasters or other crisis; boarder and/or import controls; pent-up /increased demand; mobility restrictions; shortages of product and labor; dependence on intellectual property rights, and potential loss or impairment of those rights; research and development costs; and rapid product obsolescence. Global, regional, or local events, such as changes to trade relations, trade restrictions, and/or military conflict, may materially disrupt or indefinitely impair the operations of these companies.
|
| TCW Transform Supply Chain ETF | Limited History Of Operations Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Limited History of Operations Risk. The Fund is a new fund with limited history of operations for investors to evaluate.
|
| TCW Transform Supply Chain ETF | Risk Lose Money [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. |
| TCW Transform Supply Chain ETF | Risk Nondiversified Status [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Non-diversification risk is the risk that the Fund may be more susceptible to any single economic, political or regulatory event than a diversified fund because of a higher percentage of the Fund’s assets may be invested in the securities of a limited number of issuers. |
| TCW Transform Systems ETF | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. The Fund is subject to certain risks, including the principal risks noted below, any of which may adversely affect the Fund’s net asset value (“NAV”) per share, trading price, yield, total return and ability to meet its investment objective.
|
| TCW Transform Systems ETF | E T F Structure Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ETF Structure Risks. The Fund is structured as an ETF and is subject to the special risks, including:
Not Individually Redeemable. Shares are not individually redeemable by retail investors and may be redeemed from the Fund only by Authorized Participants at NAV in large blocks known as “Creation Units.” An Authorized Participant may incur brokerage costs purchasing enough shares to constitute a Creation Unit.
Trading Issues. An active trading market for the Fund’s shares may not be developed or maintained. Trading in shares on the NASDAQ may be halted due to market conditions or for reasons that, in the view of the NASDAQ, make trading in shares inadvisable, such as extraordinary market volatility. There can be no assurance that shares will continue to meet the listing requirements of the NASDAQ. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as Authorized Participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares may trade at a material discount to NAV and possibly face delisting: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Market Price Variance Risk. The market price of the Fund’s shares will fluctuate in response to changes in NAV and supply and demand for shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that shares may trade at a discount to NAV.
Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruptions in the creation/redemption process. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Additionally, in stressed market conditions, the market for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets for a Fund’s portfolio holdings, which may cause a significant variance in the market price of the ETF Class shares and their underlying value as well as an increase in the ETF Class shares’ bid-ask spread.
Fluctuation of Net Asset Value Risk. The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of and demand for the Fund’s shares on the NASDAQ. The Adviser cannot predict whether the shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time.
Authorized Participant Concentration Risk. Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. The Fund has a limited number of institutions that may act as Authorized Participants on an agency basis (i.e., on behalf of other market participants). To the extent that Authorized Participants exit the business or are unable to proceed with creation or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units, Fund shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts or delisting.
|
| TCW Transform Systems ETF | Equity Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Equity Securities Risk. Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The net asset value of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.
|
| TCW Transform Systems ETF | Market Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Market Risk. The Fund could lose money over short periods due to short term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
|
| TCW Transform Systems ETF | Active Ownership Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Active Ownership Risk. Active ownership can take any of several forms, including proxy battles, publicity campaigns, and negotiations with management. In the event that an affiliate of the Fund or its investment adviser is engaged in an activist campaign with respect to a portfolio company, the Fund may be foreclosed from taking certain actions with respect to that company as a result of prohibitions on engaging in joint transactions with affiliates under Section 17(d) of the 1940 Act or as a result of other regulatory or fiduciary concerns. In addition, while the Fund intends to seek select opportunities to actively engage with one or more portfolio companies, it may only be able to do so in limited circumstances where no other affiliated fund has elected to do so with respect to the same portfolio companies. The Fund intends to be focused and directed in the selection of opportunities to actively engage with its portfolio companies. However, the foregoing restrictions and priorities may limit the Fund’s ability to engage with some of those select opportunities.
|
| TCW Transform Systems ETF | Non Diversification Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Non-Diversification Risk. Non-diversification risk is the risk that the Fund may be more susceptible to any single economic, political or regulatory event than a diversified fund because of a higher percentage of the Fund’s assets may be invested in the securities of a limited number of issuers.
|
| TCW Transform Systems ETF | American Depositary Receipt A D R Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | American Depositary Receipt (“ADR”) Risk. ADRs are receipts issued by US banks evidencing ownership in securities of foreign issuers. Securities of foreign issuers, and consequently ADRs, may decrease in value due to changes in currency exchange rates, the economic climate in the issuer’s home country or for a variety of other reasons.
|
| TCW Transform Systems ETF | Foreign Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Securities Risk. The Fund may have exposure to foreign markets as a result of its investments in foreign securities and securities denominated in foreign currencies. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. There may be less information publicly available about a non-U.S. issuer than a U.S. issuer. Non-U.S. issuers may be subject to different accounting, auditing, financial reporting and investor protection standards than U.S. issuers. Investments in non-U.S. securities may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. Because legal systems differ, there is also the possibility that there may not be protection against failure by other parties to complete transactions, and that it will be difficult to obtain or enforce legal judgments in certain countries. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. Each of these factors can make investments in the Fund more volatile and potentially less liquid than other types of investments.
|
| TCW Transform Systems ETF | Emerging Markets Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Emerging Markets Risk. Investments in securities and instruments traded in developing or emerging markets, or that provide exposure to such securities or markets, can involve additional risks relating to political, economic, or regulatory conditions not associated with investments in U.S. securities and instruments. Such risks may impact the ability of the Fund to buy, sell or otherwise transfer securities, adversely affect the trading market and price for shares and cause the Fund to decline in value.
|
| TCW Transform Systems ETF | Issuer Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Issuer Risk. The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. Changes in the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline.
|
| TCW Transform Systems ETF | Risk Of Investing In The U S [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Risk of Investing in the U.S. Certain changes in the U.S. economy, such as when the U.S. economy weakens or when its financial markets decline, may have an adverse effect on the securities to which the Fund has exposure.
|
| TCW Transform Systems ETF | Securities Lending Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Lending Risk. The Fund may engage in securities lending. Securities lending involves the risk that the Fund may lose money because the borrower of the loaned securities fails to return the securities in a timely manner or at all. The Fund could also lose money in the event of a decline in the value of collateral provided for loaned securities or a decline in the value of any investments made with cash collateral.
|
| TCW Transform Systems ETF | P I P Es Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | PIPEs Risk. PIPEs are securities purchased in a private placement that are issued by issuers who have outstanding, publicly-traded equity securities. Shares issued in PIPEs are not registered with the SEC and may not be sold unless registered with the SEC or pursuant to an exemption from registration. Generally, an issuer of shares in a PIPE may agree to register the shares after a certain period from the date of the private sale. This restricted period can last many months. Until the public registration process is completed, the resale of the PIPE shares is restricted. Generally, such restrictions cause the PIPE shares to be illiquid during this time. If the issuer does not agree to register the PIPE shares, the shares will remain restricted, not be freely tradable and may only be sold pursuant to an exemption from registration. Even if the PIPE shares are registered for resale, there is no assurance that the registration will be in effect at the time the Fund elects to sell the shares.
|
| TCW Transform Systems ETF | Risk Of Reliance On Third Party Data Sources [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Risk of Reliance on Third-Party Data Sources. The Adviser intends to evaluate its portfolio companies in part through the use of third-party data sources. The data provided by such third parties may be limited or only take into account one, or a few, of many related components of portfolio companies. As a result, the approach taken by the Fund with respect to a specific portfolio company may differ materially depending upon which third party data source or sources it uses. The Fund’s reliance upon such third-party data sources may also expose it to data errors on the part of such sources. |
| TCW Transform Systems ETF | Risk Lose Money [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. |
| TCW Transform Systems ETF | Risk Nondiversified Status [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Non-diversification risk is the risk that the Fund may be more susceptible to any single economic, political or regulatory event than a diversified fund because of a higher percentage of the Fund’s assets may be invested in the securities of a limited number of issuers. |
| TCW AAA CLO ETF | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. The Fund is subject to certain risks, including the principal risks noted below, any of which may adversely affect the Fund’s net asset value (“NAV”) per share, trading price, yield, total return and ability to meet its investment objective.
|
| TCW AAA CLO ETF | E T F Structure Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ETF Structure Risks. The Fund is structured as an ETF and is subject to special risks, including:
Not Individually Redeemable. Shares are not individually redeemable by retail investors and may be redeemed from the Fund only by Authorized Participants at NAV in large blocks known as “Creation Units.” An Authorized Participant may incur brokerage costs purchasing enough shares to constitute a Creation Unit.
Trading Issues. An active trading market for the Fund’s shares may not be developed or maintained. Trading in shares on the NYSE may be halted due to market conditions or for reasons that, in the view of the NYSE, make trading in shares inadvisable, such as extraordinary market volatility. There can be no assurance that shares will continue to meet the listing requirements of the NYSE. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as Authorized Participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares may trade at a material discount to NAV and possibly face delisting: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Market Price Variance Risk. The market price of the Fund’s shares will fluctuate in response to changes in NAV and supply and demand for shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that shares may trade at a discount to NAV.
Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruptions in the creation/redemption process. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Additionally, in stressed market conditions, the market for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets for a Fund’s portfolio holdings, which may cause a significant variance in the market price of the ETF Class shares and their underlying value as well as an increase in the ETF Class shares’ bid-ask spread.
Fluctuation of Net Asset Value Risk. The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of and demand for the Fund’s shares on the NYSE. The Adviser cannot predict whether the shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time.
Authorized Participant Concentration Risk. Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. The Fund has a limited number of institutions that may act as Authorized Participants on an agency basis (i.e., on behalf of other market participants). To the extent that Authorized Participants exit the business or are unable to proceed with creation or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units, Fund shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts or delisting.
|
| TCW AAA CLO ETF | Market Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Market Risk. The Fund could lose money over short periods due to short term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
|
| TCW AAA CLO ETF | Non Diversification Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Non-Diversification Risk. Non-diversification risk is the risk that the Fund may be more susceptible to any single economic, political or regulatory event than a diversified fund because of a higher percentage of the Fund’s assets may be invested in the securities of a limited number of issuers.
|
| TCW AAA CLO ETF | Foreign Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Securities Risk. The Fund may have exposure to foreign markets as a result of its investments in foreign securities and securities denominated in foreign currencies. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. There may be less information publicly available about a non-U.S. issuer than a U.S. issuer. Non-U.S. issuers may be subject to different accounting, auditing, financial reporting and investor protection standards than U.S. issuers. Investments in non-U.S. securities may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. Because legal systems differ, there is also the possibility that there may not be protection against failure by other parties to complete transactions, and that it will be difficult to obtain or enforce legal judgments in certain countries. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. Additionally, where all or a portion of the Fund’s underlying securities are traded in a market that is closed when the market in which the Fund shares are listed and trading is open, there may be changes between the last quote from its closed foreign market and the value of such security during the Fund’s domestic trading day. Each of these factors can make investments in the Fund more volatile and potentially less liquid than other types of investments.
|
| TCW AAA CLO ETF | Emerging Markets Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Emerging Markets Risk. Investments in securities and instruments traded in developing or emerging markets, or that provide exposure to such securities or markets, can involve additional risks relating to political, economic, or regulatory conditions not associated with investments in U.S. securities and instruments. Such risks may impact the ability of the Fund to buy, sell or otherwise transfer securities, adversely affect the trading market and price for shares and cause the Fund to decline in value.
|
| TCW AAA CLO ETF | Issuer Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Issuer Risk. The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. Changes in the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline.
|
| TCW AAA CLO ETF | Price Volatility Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Price Volatility Risk. The value of the Fund’s investment portfolio will change as the prices of its investments go up or down.
|
| TCW AAA CLO ETF | Securities Selection Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Selection Risk. The securities held by the Fund may underperform those held by other funds investing in the same asset class or benchmarks that are representative of the asset class because of the portfolio managers’ choice of securities.
|
| TCW AAA CLO ETF | Liquidity Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Liquidity Risk. Lack of a ready market or restrictions on resale may limit the ability of the Fund to sell a security at an advantageous time or price. The liquidity of the Fund’s assets may change over time.
|
| TCW AAA CLO ETF | Frequent Trading Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Frequent Trading Risk. Frequent trading leads to increased portfolio turnover and higher transaction costs, which may reduce the Fund’s performance and may cause higher levels of current tax liability to shareholders in the Fund.
|
| TCW AAA CLO ETF | Collateralized Loan Obligations Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Collateralized Loan Obligations Risk. CLOs are securities backed by an underlying portfolio of loan obligations. CLOs issue classes or “tranches” of debt that vary in risk and yield and may experience substantial losses due to actual defaults, decrease of market value due to collateral defaults and exhaustion of subordinate tranches, market anticipation of defaults and investor aversion to CLO securities as a class. The risks of investing in CLOs depend largely on the tranche invested in and the type of the underlying loans in the tranche of the CLO in which the Fund invests. Subordinate tranche investments involve greater risk of loss than more senior tranches. CLOs also carry risks including, but not limited to, interest rate risk and credit risk. To the extent that the Fund invests in unrated CLO tranches, the Fund’s ability to achieve its investment objective will be more dependent on the Adviser’s credit analysis than would be the case when the Fund invests in rated CLO tranches.
|
| TCW AAA CLO ETF | C L O Manager Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | CLO Manager Risk. The CLOs in which the Fund invests are managed by investment advisers independent of the Adviser. CLO managers are responsible for selecting, managing and replacing the underlying bank loans or bonds within a CLO. CLO managers may have limited operating histories and may be subject to conflicts of interest, including managing the assets of other clients or other investment vehicles, or receiving fees that incentivize maximizing the yield, and indirectly the risk, of a CLO. Adverse developments with respect to a CLO manager, such as personnel and resource constraints, regulatory issues or other developments that may impact the ability and/or performance of the CLO manager, may adversely impact the performance of the CLOs in which the Fund invests.
|
| TCW AAA CLO ETF | Debt Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Debt Securities Risk. Debt securities risk is the risk that the value of a debt security may increase or decrease as a result of various factors, including changes in interest rates, actual or perceived inability or unwillingness of issuers to make principal or interest payments, market fluctuations and illiquidity in the debt securities market.
|
| TCW AAA CLO ETF | Senior Loan Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Senior Loan Risk. The risk of investing in senior loans may be greater than the risk of investing in other types of securities, as a result of, among other factors, less readily available, reliable information about most senior loans than is the case for many other types of securities; possible loss of significant value before a default occurs; possible decline in value or illiquidity of collateral; and lack of an active trading market for certain senior loans.
|
| TCW AAA CLO ETF | Interests Rate Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Interest Rate Risk. Interest rate risk is the risk that investments held by the Fund may decline in value because of changes in interest rates.
|
| TCW AAA CLO ETF | Call Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Call Risk. During periods of falling interest rates, an issuer of a callable security held by the Fund may “call” or repay the security before its stated maturity, and the Fund may have to reinvest the proceeds in securities with lower yields, which would result in a decline in the Fund’s income, or in securities with greater risks or with other less favorable features. CLOs are typically structured such that, after a specified period of time, the majority investor in the equity tranche can call (i.e., redeem) the securities issued by the CLO in full. The Fund may not be able to accurately predict when or which of its CLO investments may be called, resulting in the Fund having to reinvest the proceeds in unfavorable circumstances, which in turn could cause in a decline in the Fund’s income.
|
| TCW AAA CLO ETF | Inflation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of the Fund’s investments may not keep up with price increases from inflation.
|
| TCW AAA CLO ETF | Extension Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Extension Risk. Extension risk is the risk that in times of rising interest rates, borrowers may pay off their debt obligations more slowly, causing securities considered short- or intermediate-term to become longer-term securities that fluctuate more widely in response to changes in interest rates than shorter-term securities.
|
| TCW AAA CLO ETF | Prepayment Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Prepayment Risk. Prepayment risk is the risk that in times of declining interest rates, the Fund’s higher yielding securities may be prepaid and the Fund may have to replace them with securities having a lower yield.
|
| TCW AAA CLO ETF | Credit Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Credit Risk. Credit risk is the risk that an issuer may default in the payment of principal and/or interest on a security.
|
| TCW AAA CLO ETF | Income Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Income Risk. The Fund’s income may decline if interest rates fall. This decline in income can occur because the Fund may subsequently invest in lower-yielding CLOs as CLOs in its portfolio mature, are near maturity or are called, or the Fund otherwise needs to purchase additional CLOs.
|
| TCW AAA CLO ETF | Junk Bond Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Junk Bond Risk. Junk bonk risk is the risk that junk bonds have a higher degree of default risk and may be less liquid and subject to greater price volatility than investment grade securities.
|
| TCW AAA CLO ETF | Distressed And Defaulted Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Distressed and Defaulted Securities Risk. Distressed and defaulted securities risk is the risk that the repayment of defaulted securities and obligations of distressed issuers is subject to significant uncertainties.
|
| TCW AAA CLO ETF | Privately Issued Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Privately Issued Securities Risk. CLO securities are generally privately-issued securities, and are normally purchased pursuant to Rule 144A or Regulation S under the Securities Act of 1933. Privately-issued securities typically may be resold only to qualified institutional buyers, in a privately negotiated transaction, to a limited number of purchasers, or in limited quantities after they have been held for a specified period of time and other conditions are met for an exemption from registration. Because there may be relatively few potential purchasers for such securities, especially under adverse market or economic conditions or in the event of adverse changes in the financial condition of the issuer, the Fund may find it more difficult to sell such securities when it may be advisable to do so or it may be able to sell such securities only at prices lower than if such securities were more widely held and traded.
|
| TCW AAA CLO ETF | Covenant Lite Loans Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Covenant Lite Loans Risk. Certain of the underlying loans in which a CLO may invest may be issued or offered as “covenant lite” loans, which have few or no financial maintenance covenants that would require a borrower to maintain certain financial metrics. A CLO may be delayed in enforcing its interests in covenant lite loans, which may result in losses.
|
| TCW AAA CLO ETF | Valuation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Valuation Risk. Valuation risk is the risk that the portfolio instruments may be sold at prices different from the values established by the Fund, particularly for investments that trade in low volume, in volatile markets or over the counter or that are fair valued.
|
| TCW AAA CLO ETF | Unrated Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Unrated Securities Risk. Unrated securities risk is the risk that unrated securities may be less liquid than comparable rated securities, and the risk that the Adviser may not accurately evaluate the security’s comparative credit rating. This risk is greater for high yield securities, because the analysis of creditworthiness of issuers of high yield securities may be more complex than for issuers of investment grade securities.
|
| TCW AAA CLO ETF | Mezzanine Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Mezzanine Securities Risk. Mezzanine securities risk is the risk of investing in mezzanine securities, which generally are rated below investment grade or are unrated and present many of the same risks as senior loans, second lien loans and non-investment grade bonds. Mezzanine securities present additional risks because they typically are the most subordinated debt obligation in an issuer’s capital structure and are often unsecured. Mezzanine securities are also expected to be a highly illiquid investment.
|
| TCW AAA CLO ETF | When Issued And Delayed Delivery Securities [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | When-Issued and Delayed Delivery Securities. When-issued and delayed delivery securities involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price.
|
| TCW AAA CLO ETF | Derivatives Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Derivatives Risk. A derivative is a financial contract, the value of which depends on or is derived from, the value of an underlying asset such as a security or an index. The Fund may invest in certain types of derivatives contracts, including futures. Compared to conventional securities, derivatives can be more sensitive to changes in interest rates or to sudden fluctuations in market prices and the Fund’s losses may be greater if it invests in derivatives than if it invests only in conventional securities.
Futures. A futures contract is a standardized, exchange-traded agreement to buy or sell a specific quantity of an underlying instrument at a specific price at a specific future time. The risk of loss in buying and selling futures contracts can be substantial. Small price movements in the instrument underlying a futures position may result in immediate and substantial losses to the Fund.
|
| TCW AAA CLO ETF | Swap Agreements Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Swap Agreements Risk. The risk of investing in swaps, which, in addition to risks applicable to derivatives generally, includes: (1) the inability to assign a swap contract without the consent of the counterparty; (2) potential default of the counterparty to a swap (which is enhanced if it is not subject to centralized clearing); (3) absence of a liquid secondary market for any particular swap at any time; and (4) possible inability of the Fund to close out a swap transaction at a time that otherwise would be favorable for it to do so.
|
| TCW AAA CLO ETF | Counterparty Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Counterparty Risk. Counterparty risk is the risk that the other party to a contract, such as a derivatives contract, will not fulfill its contractual obligations.
|
| TCW AAA CLO ETF | Leverage Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Leverage Risk. Leverage risk is the risk that leverage may result from certain transactions, including the use of derivatives and borrowing. This may impair the Fund’s liquidity, cause it to liquidate positions at an unfavorable time, increase its volatility or otherwise cause it not to achieve its intended result.
|
| TCW AAA CLO ETF | Foreign Currency Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Currency Risk. Foreign currency risk is the risk that foreign currencies may decline in value relative to the U.S. dollar and affect the Fund’s investments in foreign currencies, in securities that are denominated, trade and/or receive revenues in foreign currencies, or in derivatives that provide exposure to foreign currencies. |
| TCW AAA CLO ETF | Risk Lose Money [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. |
| TCW AAA CLO ETF | Risk Nondiversified Status [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Non-diversification risk is the risk that the Fund may be more susceptible to any single economic, political or regulatory event than a diversified fund because of a higher percentage of the Fund’s assets may be invested in the securities of a limited number of issuers. |
| TCW Core Plus Bond ETF | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. The Fund is subject to certain risks, including the principal risks noted below, any of which may adversely affect the Fund’s net asset value (“NAV”) per share, trading price, yield, total return and ability to meet its investment objective.
|
| TCW Core Plus Bond ETF | E T F Structure Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ETF Structure Risks. The Fund is structured as an ETF and is subject to special risks, including:
Not Individually Redeemable. Shares are not individually redeemable by retail investors and may be redeemed from the Fund only by Authorized Participants at NAV in large blocks known as “Creation Units.” An Authorized Participant may incur brokerage costs purchasing enough shares to constitute a Creation Unit.
Trading Issues. An active trading market for the Fund’s shares may not be developed or maintained. Trading in shares on the NYSE may be halted due to market conditions or for reasons that, in the view of the NYSE, make trading in shares inadvisable, such as extraordinary market volatility. There can be no assurance that shares will continue to meet the listing requirements of the NYSE. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as Authorized Participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares may trade at a material discount to NAV and possibly face delisting: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Market Price Variance Risk. The market price of the Fund’s shares will fluctuate in response to changes in NAV and supply and demand for shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that shares may trade at a discount to NAV.
Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruptions in the creation/redemption process. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Additionally, in stressed market conditions, the market for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets for a Fund’s portfolio holdings, which may cause a significant variance in the market price of the ETF Class shares and their underlying value as well as an increase in the ETF Class shares’ bid-ask spread.
Fluctuation of Net Asset Value Risk. The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of and demand for the Fund’s shares on the NYSE. The Adviser cannot predict whether the shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time.
Authorized Participant Concentration Risk. Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. The Fund has a limited number of institutions that may act as Authorized Participants on an agency basis (i.e., on behalf of other market participants). To the extent that Authorized Participants exit the business or are unable to proceed with creation or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units, Fund shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts or delisting.
|
| TCW Core Plus Bond ETF | Market Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Market Risk. The Fund could lose money over short periods due to short term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
|
| TCW Core Plus Bond ETF | Foreign Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Securities Risk. The Fund may have exposure to foreign markets as a result of its investments in foreign securities and securities denominated in foreign currencies. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. There may be less information publicly available about a non-U.S. issuer than a U.S. issuer. Non-U.S. issuers may be subject to different accounting, auditing, financial reporting and investor protection standards than U.S. issuers. Investments in non-U.S. securities may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. Because legal systems differ, there is also the possibility that there may not be protection against failure by other parties to complete transactions, and that it will be difficult to obtain or enforce legal judgments in certain countries. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. Additionally, where all or a portion of the Fund’s underlying securities are traded in a market that is closed when the market in which the Fund shares are listed and trading is open, there may be changes between the last quote from its closed foreign market and the value of such security during the Fund’s domestic trading day. Each of these factors can make investments in the Fund more volatile and potentially less liquid than other types of investments.
|
| TCW Core Plus Bond ETF | Emerging Markets Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Emerging Markets Risk. Investments in securities and instruments traded in developing or emerging markets, or that provide exposure to such securities or markets, can involve additional risks relating to political, economic, or regulatory conditions not associated with investments in U.S. securities and instruments. Such risks may impact the ability of the Fund to buy, sell or otherwise transfer securities, adversely affect the trading market and price for shares and cause the Fund to decline in value.
|
| TCW Core Plus Bond ETF | Issuer Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Issuer Risk. The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. Changes in the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline.
|
| TCW Core Plus Bond ETF | Price Volatility Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Price Volatility Risk. The value of the Fund’s investment portfolio will change as the prices of its investments go up or down.
|
| TCW Core Plus Bond ETF | Securities Selection Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Selection Risk. The securities held by the Fund may underperform those held by other funds investing in the same asset class or benchmarks that are representative of the asset class because of the portfolio managers’ choice of securities.
|
| TCW Core Plus Bond ETF | Liquidity Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Liquidity Risk. Lack of a ready market or restrictions on resale may limit the ability of the Fund to sell a security at an advantageous time or price. The liquidity of the Fund’s assets may change over time.
|
| TCW Core Plus Bond ETF | Frequent Trading Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Frequent Trading Risk. Frequent trading leads to increased portfolio turnover and higher transaction costs, which may reduce the Fund’s performance and may cause higher levels of current tax liability to shareholders in the Fund.
|
| TCW Core Plus Bond ETF | Collateralized Loan Obligations Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Collateralized Loan Obligations Risk. CLOs are securities backed by an underlying portfolio of loan obligations. CLOs issue classes or “tranches” of debt that vary in risk and yield and may experience substantial losses due to actual defaults, decrease of market value due to collateral defaults and exhaustion of subordinate tranches, market anticipation of defaults and investor aversion to CLO securities as a class. The risks of investing in CLOs depend largely on the tranche invested in and the type of the underlying loans in the tranche of the CLO in which the Fund invests. Subordinate tranche investments involve greater risk of loss than more senior tranches. CLOs also carry risks including, but not limited to, interest rate risk and credit risk. To the extent that the Fund invests in unrated CLO tranches, the Fund’s ability to achieve its investment objective will be more dependent on the Adviser’s credit analysis than would be the case when the Fund invests in rated CLO tranches.
|
| TCW Core Plus Bond ETF | Debt Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Debt Securities Risk. Debt securities risk is the risk that the value of a debt security may increase or decrease as a result of various factors, including changes in interest rates, actual or perceived inability or unwillingness of issuers to make principal or interest payments, market fluctuations and illiquidity in the debt securities market.
|
| TCW Core Plus Bond ETF | Senior Loan Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Senior Loan Risk. The risk of investing in senior loans may be greater than the risk of investing in other types of securities, as a result of, among other factors, less readily available, reliable information about most senior loans than is the case for many other types of securities; possible loss of significant value before a default occurs; possible decline in value or illiquidity of collateral; and lack of an active trading market for certain senior loans.
|
| TCW Core Plus Bond ETF | Interests Rate Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Interest Rate Risk. Interest rate risk is the risk that investments held by the Fund may decline in value because of changes in interest rates.
|
| TCW Core Plus Bond ETF | Call Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Call Risk. During periods of falling interest rates, an issuer of a callable security held by the Fund may “call” or repay the security before its stated maturity, and the Fund may have to reinvest the proceeds in securities with lower yields, which would result in a decline in the Fund’s income, or in securities with greater risks or with other less favorable features. CLOs are typically structured such that, after a specified period of time, the majority investor in the equity tranche can call (i.e., redeem) the securities issued by the CLO in full. The Fund may not be able to accurately predict when or which of its CLO investments may be called, resulting in the Fund having to reinvest the proceeds in unfavorable circumstances, which in turn could cause in a decline in the Fund’s income.
|
| TCW Core Plus Bond ETF | Inflation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of the Fund’s investments may not keep up with price increases from inflation.
|
| TCW Core Plus Bond ETF | Extension Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Extension Risk. Extension risk is the risk that in times of rising interest rates, borrowers may pay off their debt obligations more slowly, causing securities considered short- or intermediate-term to become longer-term securities that fluctuate more widely in response to changes in interest rates than shorter-term securities.
|
| TCW Core Plus Bond ETF | Junk Bond Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Junk Bond Risk. Junk bonk risk is the risk that junk bonds have a higher degree of default risk and may be less liquid and subject to greater price volatility than investment grade securities.
|
| TCW Core Plus Bond ETF | Distressed And Defaulted Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Distressed and Defaulted Securities Risk. Distressed and defaulted securities risk is the risk that the repayment of defaulted securities and obligations of distressed issuers is subject to significant uncertainties.
|
| TCW Core Plus Bond ETF | Privately Issued Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Privately Issued Securities Risk. Privately-issued securities typically may be resold only to qualified institutional buyers, in a privately negotiated transaction, to a limited number of purchasers, or in limited quantities after they have been held for a specified period of time and other conditions are met for an exemption from registration. Because there may be relatively few potential purchasers for such securities, especially under adverse market or economic conditions or in the event of adverse changes in the financial condition of the issuer, the Fund may find it more difficult to sell such securities when it may be advisable to do so or it may be able to sell such securities only at prices lower than if such securities were more widely held and traded.
|
| TCW Core Plus Bond ETF | Valuation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Valuation Risk. Valuation risk is the risk that the portfolio instruments may be sold at prices different from the values established by the Fund, particularly for investments that trade in low volume, in volatile markets or over the counter or that are fair valued.
|
| TCW Core Plus Bond ETF | Unrated Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Unrated Securities Risk. Unrated securities risk is the risk that unrated securities may be less liquid than comparable rated securities, and the risk that the Adviser may not accurately evaluate the security’s comparative credit rating. This risk is greater for high yield securities, because the analysis of creditworthiness of issuers of high yield securities may be more complex than for issuers of investment grade securities.
|
| TCW Core Plus Bond ETF | When Issued And Delayed Delivery Securities [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | When-Issued and Delayed Delivery Securities. When-issued and delayed delivery securities involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price. |
| TCW Core Plus Bond ETF | Derivatives Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Derivatives Risk. A derivative is a financial contract, the value of which depends on or is derived from, the value of an underlying asset such as a security or an index. The Fund may invest in certain types of derivatives contracts, including futures. Compared to conventional securities, derivatives can be more sensitive to changes in interest rates or to sudden fluctuations in market prices and the Fund’s losses may be greater if it invests in derivatives than if it invests only in conventional securities.
Futures. A futures contract is a standardized, exchange-traded agreement to buy or sell a specific quantity of an underlying instrument at a specific price at a specific future time. The risk of loss in buying and selling futures contracts can be substantial. Small price movements in the instrument underlying a futures position may result in immediate and substantial losses to the Fund.
|
| TCW Core Plus Bond ETF | Swap Agreements Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Swap Agreements Risk. The risk of investing in swaps, which, in addition to risks applicable to derivatives generally, includes: (1) the inability to assign a swap contract without the consent of the counterparty; (2) potential default of the counterparty to a swap if it is not subject to centralized clearing; (3) absence of a liquid secondary market for any particular swap at any time; and (4) possible inability of the Fund to close out a swap transaction at a time that otherwise would be favorable for it to do so.
|
| TCW Core Plus Bond ETF | Counterparty Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Counterparty Risk. Counterparty risk is the risk that the other party to a contract, such as a derivatives contract, will not fulfill its contractual obligations.
|
| TCW Core Plus Bond ETF | Leverage Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Leverage Risk. Leverage risk is the risk that leverage may result from certain transactions, including the use of derivatives and borrowing. This may impair the Fund’s liquidity, cause it to liquidate positions at an unfavorable time, increase its volatility or otherwise cause it not to achieve its intended result.
|
| TCW Core Plus Bond ETF | Asset Backed Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Asset-Backed Securities Risk. The risk of investing in asset-backed securities, including the risk of loss as a result of the impairment of the value of the underlying financial assets, prepayment risk and extension risk. Issuers of asset-backed securities may have limited ability to enforce the security interest in the underlying assets, and credit enhancements provided to support the asset-backed securities, if any, may be inadequate to protect investors in the event of default.
|
| TCW Core Plus Bond ETF | Bank Loan Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Bank Loan Risk. Bank loan risk is the risk of investing in corporate loans made by commercial banks and other financial institutions or institutional investors to companies that need capital to grow or restructure, which includes interest rate risk, liquidity risk and prepayment risk. A Fund may also be subject to the credit risk of other financial institutions and the risks associated with insufficient collateral securing a bank loan, limited available public information about a bank loan, delayed settlement, and less protection for holders of bank loans as compared to holders of registered securities.
|
| TCW Core Plus Bond ETF | Credits Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Credit Risk. Credit risk is the risk that an issuer may default in the payment of principal and/or interest on a security.
|
| TCW Core Plus Bond ETF | Money Market Short Term Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Money Market/Short-Term Securities Risk. To the extent a Fund holds cash or invests in money market or short-term securities, a Fund may be less likely to achieve its investment objective. In addition, it is possible that a Fund’s investments in these instruments could lose money.
|
| TCW Core Plus Bond ETF | Mortgage Backed Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Mortgage-Backed Securities Risk. Mortgage-backed securities risk is the risk of investing in mortgage-backed securities, including prepayment risk and extension risk. Mortgage-backed securities react differently to changes in interest rates than other bonds, and some mortgage-backed securities are not backed by the full faith and credit of the U.S. government.
|
| TCW Core Plus Bond ETF | Municipal Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Municipal Securities Risk. The risk of investing in municipal securities, including that the issuers of municipal securities may be unable to pay their obligations as they come due. The values of municipal securities may fluctuate as a result of changes in the cash flows generated by the revenue source or changes in the priority of the municipal obligation to receive the cash flows generated by the revenue source. Changes in federal tax laws or the activity of an issuer may adversely affect the tax-exempt status of municipal securities, may cause interest received and distributed to shareholders by the Fund to be taxable and may result in a significant decline in the values of such municipal securities.
|
| TCW Core Plus Bond ETF | Prepayments Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Prepayment Risk. Prepayment risk is the risk that in times of declining interest rates, the Fund’s higher yielding securities may be prepaid and the Fund may have to replace them with securities having a lower yield.
|
| TCW Core Plus Bond ETF | Risk Lose Money [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. |
| TCW Corporate Bond ETF | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. The Fund is subject to certain risks, including the principal risks noted below, any of which may adversely affect the Fund’s net asset value (“NAV”) per share, trading price, yield, total return and ability to meet its investment objective.
|
| TCW Corporate Bond ETF | E T F Structure Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ETF Structure Risks. The Fund is structured as an ETF and is subject to special risks, including:
Not Individually Redeemable. Shares are not individually redeemable by retail investors and may be redeemed from the Fund only by Authorized Participants at NAV in large blocks known as “Creation Units.” An Authorized Participant may incur brokerage costs purchasing enough shares to constitute a Creation Unit.
Trading Issues. An active trading market for the Fund’s shares may not be developed or maintained. Trading in shares on the NYSE may be halted due to market conditions or for reasons that, in the view of the NYSE, make trading in shares inadvisable, such as extraordinary market volatility. There can be no assurance that shares will continue to meet the listing requirements of the NYSE. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as Authorized Participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares may trade at a material discount to NAV and possibly face delisting: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Market Price Variance Risk. The market price of the Fund’s shares will fluctuate in response to changes in NAV and supply and demand for shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that shares may trade at a discount to NAV.
Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruptions in the creation/redemption process. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Additionally, in stressed market conditions, the market for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets for a Fund’s portfolio holdings, which may cause a significant variance in the market price of the ETF Class shares and their underlying value as well as an increase in the ETF Class shares’ bid-ask spread.
Fluctuation of Net Asset Value Risk. The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of and demand for the Fund’s shares on the NYSE. The Adviser cannot predict whether the shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time.
Authorized Participant Concentration Risk. Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. The Fund has a limited number of institutions that may act as Authorized Participants on an agency basis (i.e., on behalf of other market participants). To the extent that Authorized Participants exit the business or are unable to proceed with creation or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units, Fund shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts or delisting.
|
| TCW Corporate Bond ETF | Equity Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Equity Securities Risk. Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The net asset value of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.
|
| TCW Corporate Bond ETF | Market Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Market Risk. The Fund could lose money over short periods due to short term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
|
| TCW Corporate Bond ETF | Active Management Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Active Management Risk. The Fund is actively managed, which means that investment decisions are made based on the Adviser’s investment views. There is no guarantee that the investment views will produce the desired results or expected returns, which may cause the Fund to fail to meet its investment objective or to underperform its benchmark index or funds with similar investment objectives and strategies. Furthermore, active trading that can accompany active management may result in high portfolio turnover, which may have a negative impact on performance. Active trading may result in higher brokerage costs or mark-up charges, which are ultimately passed on to shareholders of the Fund. Active trading may also result in adverse tax consequences.
|
| TCW Corporate Bond ETF | Foreign Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Securities Risk. The Fund may have exposure to foreign markets as a result of its investments in foreign securities and securities denominated in foreign currencies. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. There may be less information publicly available about a non-U.S. issuer than a U.S. issuer. Non-U.S. issuers may be subject to different accounting, auditing, financial reporting and investor protection standards than U.S. issuers. Investments in non-U.S. securities may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. Because legal systems differ, there is also the possibility that there may not be protection against failure by other parties to complete transactions, and that it will be difficult to obtain or enforce legal judgments in certain countries. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. Additionally, where all or a portion of the Fund’s underlying securities are traded in a market that is closed when the market in which the Fund shares are listed and trading is open, there may be changes between the last quote from its closed foreign market and the value of such security during the Fund’s domestic trading day. Each of these factors can make investments in the Fund more volatile and potentially less liquid than other types of investments.
|
| TCW Corporate Bond ETF | Emerging Markets Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Emerging Markets Risk. Investments in securities and instruments traded in developing or emerging markets, or that provide exposure to such securities or markets, can involve additional risks relating to political, economic, or regulatory conditions not associated with investments in U.S. securities and instruments. Such risks may impact the ability of the Fund to buy, sell or otherwise transfer securities, adversely affect the trading market and price for shares and cause the Fund to decline in value.
|
| TCW Corporate Bond ETF | Issuer Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Issuer Risk. The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. Changes in the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline.
|
| TCW Corporate Bond ETF | Price Volatility Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Price Volatility Risk. The value of the Fund’s investment portfolio will change as the prices of its investments go up or down.
|
| TCW Corporate Bond ETF | Securities Selection Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Selection Risk. The securities held by the Fund may underperform those held by other funds investing in the same asset class or benchmarks that are representative of the asset class because of the portfolio managers’ choice of securities.
|
| TCW Corporate Bond ETF | Liquidity Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Liquidity Risk. Lack of a ready market or restrictions on resale may limit the ability of the Fund to sell a security at an advantageous time or price. The liquidity of the Fund’s assets may change over time.
|
| TCW Corporate Bond ETF | Frequent Trading Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Frequent Trading Risk. Frequent trading leads to increased portfolio turnover and higher transaction costs, which may reduce the Fund’s performance and may cause higher levels of current tax liability to shareholders in the Fund.
|
| TCW Corporate Bond ETF | Collateralized Loan Obligations Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Collateralized Loan Obligations Risk. CLOs are securities backed by an underlying portfolio of loan obligations. CLOs issue classes or “tranches” of debt that vary in risk and yield and may experience substantial losses due to actual defaults, decrease of market value due to collateral defaults and exhaustion of subordinate tranches, market anticipation of defaults and investor aversion to CLO securities as a class. The risks of investing in CLOs depend largely on the tranche invested in and the type of the underlying loans in the tranche of the CLO in which the Fund invests. Subordinate tranche investments involve greater risk of loss than more senior tranches. CLOs also carry risks including, but not limited to, interest rate risk and credit risk. To the extent that the Fund invests in unrated CLO tranches, the Fund’s ability to achieve its investment objective will be more dependent on the Adviser’s credit analysis than would be the case when the Fund invests in rated CLO tranches.
|
| TCW Corporate Bond ETF | Debt Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Debt Securities Risk. Debt securities risk is the risk that the value of a debt security may increase or decrease as a result of various factors, including changes in interest rates, actual or perceived inability or unwillingness of issuers to make principal or interest payments, market fluctuations and illiquidity in the debt securities market.
|
| TCW Corporate Bond ETF | Inflation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of the Fund’s investments may not keep up with price increases from inflation.
|
| TCW Corporate Bond ETF | Extension Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Extension Risk. Extension risk is the risk that in times of rising interest rates, borrowers may pay off their debt obligations more slowly, causing securities considered short- or intermediate-term to become longer-term securities that fluctuate more widely in response to changes in interest rates than shorter-term securities.
|
| TCW Corporate Bond ETF | Prepayment Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Prepayment Risk. Prepayment risk is the risk that in times of declining interest rates, the Fund’s higher yielding securities may be prepaid and the Fund may have to replace them with securities having a lower yield.
|
| TCW Corporate Bond ETF | Credit Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Credit Risk. Credit risk is the risk that an issuer may default in the payment of principal and/or interest on a security.
|
| TCW Corporate Bond ETF | Junk Bond Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Junk Bond Risk. Junk bonk risk is the risk that junk bonds have a higher degree of default risk and may be less liquid and subject to greater price volatility than investment grade securities.
|
| TCW Corporate Bond ETF | Distressed And Defaulted Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Distressed and Defaulted Securities Risk. Distressed and defaulted securities risk is the risk that the repayment of defaulted securities and obligations of distressed issuers is subject to significant uncertainties.
|
| TCW Corporate Bond ETF | Valuation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Valuation Risk. Valuation risk is the risk that the portfolio instruments may be sold at prices different from the values established by the Fund, particularly for investments that trade in low volume, in volatile markets or over the counter or that are fair valued.
|
| TCW Corporate Bond ETF | Unrated Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Unrated Securities Risk. Unrated securities risk is the risk that unrated securities may be less liquid than comparable rated securities, and the risk that the Adviser may not accurately evaluate the security’s comparative credit rating. This risk is greater for high yield securities, because the analysis of creditworthiness of issuers of high yield securities may be more complex than for issuers of investment grade securities.
|
| TCW Corporate Bond ETF | Mezzanine Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Mezzanine Securities Risk. Mezzanine securities risk is the risk of investing in mezzanine securities, which generally are rated below investment grade or are unrated and present many of the same risks as senior loans, second lien loans and non-investment grade bonds. Mezzanine securities present additional risks because they typically are the most subordinated debt obligation in an issuer’s capital structure and are often unsecured. Mezzanine securities are also expected to be a highly illiquid investment.
|
| TCW Corporate Bond ETF | Derivatives Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Derivatives Risk. A derivative is a financial contract, the value of which depends on or is derived from, the value of an underlying asset such as a security or an index. The Fund may invest in certain types of derivatives contracts, including futures. Compared to conventional securities, derivatives can be more sensitive to changes in interest rates or to sudden fluctuations in market prices and the Fund’s losses may be greater if it invests in derivatives than if it invests only in conventional securities.
Futures. A futures contract is a standardized, exchange-traded agreement to buy or sell a specific quantity of an underlying instrument at a specific price at a specific future time. The risk of loss in buying and selling futures contracts can be substantial. Small price movements in the instrument underlying a futures position may result in immediate and substantial losses to the Fund.
|
| TCW Corporate Bond ETF | Swap Agreements Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Swap Agreements Risk. The risk of investing in swaps, which, in addition to risks applicable to derivatives generally, includes: (1) the inability to assign a swap contract without the consent of the counterparty; (2) potential default of the counterparty to a swap (which is enhanced if it is not subject to centralized clearing); (3) absence of a liquid secondary market for any particular swap at any time; and (4) possible inability of the Fund to close out a swap transaction at a time that otherwise would be favorable for it to do so.
|
| TCW Corporate Bond ETF | Counterparty Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Counterparty Risk. Counterparty risk is the risk that the other party to a contract, such as a derivatives contract, will not fulfill its contractual obligations.
|
| TCW Corporate Bond ETF | Leverage Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Leverage Risk. Leverage risk is the risk that leverage may result from certain transactions, including the use of derivatives and borrowing. This may impair the Fund’s liquidity, cause it to liquidate positions at an unfavorable time, increase its volatility or otherwise cause it not to achieve its intended result.
|
| TCW Corporate Bond ETF | Foreign Currency Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Currency Risk. Foreign currency risk is the risk that foreign currencies may decline in value relative to the U.S. dollar and affect the Fund’s investments in foreign currencies, in securities that are denominated, trade and/or receive revenues in foreign currencies, or in derivatives that provide exposure to foreign currencies.
|
| TCW Corporate Bond ETF | Asset Backed Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Asset-Backed Securities Risk. The risk of investing in asset-backed securities, including the risk of loss as a result of the impairment of the value of the underlying financial assets, prepayment risk and extension risk. Issuers of asset-backed securities may have limited ability to enforce the security interest in the underlying assets, and credit enhancements provided to support the asset-backed securities, if any, may be inadequate to protect investors in the event of default.
|
| TCW Corporate Bond ETF | Bank Loan Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Bank Loan Risk. Bank loan risk is the risk of investing in corporate loans made by commercial banks and other financial institutions or institutional investors to companies that need capital to grow or restructure, which includes interest rate risk, liquidity risk and prepayment risk. The Fund may also be subject to the credit risk of other financial institutions and the risks associated with insufficient collateral securing a bank loan, limited available public information about a bank loan, delayed settlement, and less protection for holders of bank loans as compared to holders of registered securities.
|
| TCW Corporate Bond ETF | Money Market Short Term Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Money Market/Short-Term Securities Risk. To the extent the Fund holds cash or invests in money market or short-term securities, the Fund may be less likely to achieve its investment objective. In addition, it is possible that the Fund’s investments in these instruments could lose money.
|
| TCW Corporate Bond ETF | Mortgage Backed Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Mortgage-Backed Securities Risk. Mortgage-backed securities risk is the risk of investing in mortgage-backed securities, including prepayment risk and extension risk. Mortgage-backed securities react differently to changes in interest rates than other bonds, and some mortgage-backed securities are not backed by the full faith and credit of the U.S. government.
|
| TCW Corporate Bond ETF | Municipal Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Municipal Securities Risk. The risk of investing in municipal securities, including that the issuers of municipal securities may be unable to pay their obligations as they come due. The values of municipal securities may fluctuate as a result of changes in the cash flows generated by the revenue source or changes in the priority of the municipal obligation to receive the cash flows generated by the revenue source. Changes in federal tax laws or the activity of an issuer may adversely affect the tax-exempt status of municipal securities, may cause interest received and distributed to shareholders by the Fund to be taxable and may result in a significant decline in the values of such municipal securities.
|
| TCW Corporate Bond ETF | Interest Rate Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Interest Rate Risk. Interest rate risk is the risk that investments held by the Fund may decline in value because of changes in interest rates.
|
| TCW Corporate Bond ETF | Convertible Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Convertible Securities Risk. As convertible securities share both fixed income and equity characteristics, they are subject to risks to which fixed income and equity investments are subject. These risks include equity risk, interest rate risk and credit risk.
|
| TCW Corporate Bond ETF | U S Government Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | U.S. Government Securities Risk. U.S. government securities risk is the risk that debt securities issued or guaranteed by certain U.S. government agencies, instrumentalities, and sponsored enterprises are not supported by the full faith and credit of the U.S. government, and as so investments in their securities or obligations issued by them involve credit risk greater than investments in other types of U.S. government securities.
|
| TCW Corporate Bond ETF | U S Treasury Obligations Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | U.S. Treasury Obligations Risk. U.S. Treasury obligations risk is the risk that the value of U.S. treasury obligations may decline as a result of changes in interest rates, certain political events in the U.S., and strained relations with certain foreign countries.
|
| TCW Corporate Bond ETF | Collateralized Debt Obligations Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Collateralized Debt Obligations Risk. The risks of an investment in a collateralized debt obligation depend largely on the type of the collateral securities and the class of the debt obligation in which the Fund invests. Collateralized debt obligations are generally subject to many of the same risks of investing as debt securities and asset-backed securities, including credit, interest rate, valuation, liquidity, prepayment and extension risks. These securities also are subject to risk of default on the underlying assets, particularly during periods of economic downturn.
|
| TCW Corporate Bond ETF | Private Placement And Other Restricted Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Private Placement and Other Restricted Securities Risk. Private placements and other restricted securities, including securities for which the Adviser has material non-public information, are securities that are subject to legal and/or contractual restrictions on their sales. These securities may not be sold to the public unless certain conditions are met, which may include registration under the applicable securities laws. As a result of the absence of a public trading market, the prices of these securities may be more difficult to determine than publicly traded securities and these securities may involve heightened risk as compared to investments in securities of publicly traded companies. Private placements and other restricted securities may be illiquid, and it frequently can be difficult to sell them at a time when it may otherwise be desirable to do so or the Fund may be able to sell them only at prices that are less than what the Fund regards as their fair market value. Transaction costs may be higher for these securities. In addition, the Fund may get only limited information about the issuer of a private placement or other restricted security.
|
| TCW Corporate Bond ETF | Rule 144 A Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Rule 144A Securities Risk. Rule 144A securities are securities offered as exempt from registration with the SEC, but may be treated as liquid securities because there is a market for such securities. Rule 144A securities may have an active trading market, but carry the risk that the active trading market may not continue. To the extent that institutional buyers become, for a time, uninterested in purchasing Rule 144A securities, investing in such securities could increase the Fund’s level of illiquidity.
|
| TCW Corporate Bond ETF | Preferred Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Preferred Securities Risk. Preferred securities may be subject to greater credit or other risks than senior debt instruments. In addition, preferred securities are subject to other risks, such as risks related to deferred and omitted distributions, limited voting rights, liquidity, interest rate, regulatory changes and special redemption rights. |
| TCW Corporate Bond ETF | Risk Lose Money [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. |
| TCW Flexible Income ETF | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. The Fund is subject to certain risks, including the principal risks noted below, any of which may adversely affect the Fund’s net asset value (“NAV”) per share, trading price, yield, total return and ability to meet its investment objective.
|
| TCW Flexible Income ETF | E T F Structure Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ETF Structure Risks. The Fund is structured as an ETF and is subject to special risks, including:
Not Individually Redeemable. Shares are not individually redeemable by retail investors and may be redeemed from the Fund only by Authorized Participants at NAV in large blocks known as “Creation Units.” An Authorized Participant may incur brokerage costs purchasing enough shares to constitute a Creation Unit.
Trading Issues. An active trading market for the Fund’s shares may not be developed or maintained. Trading in shares on the NYSE may be halted due to market conditions or for reasons that, in the view of the NYSE, make trading in shares inadvisable, such as extraordinary market volatility. There can be no assurance that shares will continue to meet the listing requirements of the NYSE. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as Authorized Participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares may trade at a material discount to NAV and possibly face delisting: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Market Price Variance Risk. The market price of the Fund’s shares will fluctuate in response to changes in NAV and supply and demand for shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that shares may trade at a discount to NAV.
Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruptions in the creation/redemption process. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Additionally, in stressed market conditions, the market for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets for a Fund’s portfolio holdings, which may cause a significant variance in the market price of the ETF Class shares and their underlying value as well as an increase in the ETF Class shares’ bid-ask spread.
Fluctuation of Net Asset Value Risk. The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of and demand for the Fund’s shares on the NYSE. The Adviser cannot predict whether the shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time.
Authorized Participant Concentration Risk. Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. The Fund has a limited number of institutions that may act as Authorized Participants on an agency basis (i.e., on behalf of other market participants). To the extent that Authorized Participants exit the business or are unable to proceed with creation or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units, Fund shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts or delisting.
|
| TCW Flexible Income ETF | Equity Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Equity Securities Risk. Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The net asset value of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.
|
| TCW Flexible Income ETF | Market Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Market Risk. The Fund could lose money over short periods due to short term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
|
| TCW Flexible Income ETF | Active Management Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Active Management Risk. The Fund is actively managed, which means that investment decisions are made based on the Adviser’s investment views. There is no guarantee that the investment views will produce the desired results or expected returns, which may cause the Fund to fail to meet its investment objective or to underperform its benchmark index or funds with similar investment objectives and strategies. Furthermore, active trading that can accompany active management may result in high portfolio turnover, which may have a negative impact on performance. Active trading may result in higher brokerage costs or mark-up charges, which are ultimately passed on to shareholders of the Fund. Active trading may also result in adverse tax consequences.
|
| TCW Flexible Income ETF | Foreign Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Securities Risk. The Fund may have exposure to foreign markets as a result of its investments in foreign securities and securities denominated in foreign currencies. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. There may be less information publicly available about a non-U.S. issuer than a U.S. issuer. Non-U.S. issuers may be subject to different accounting, auditing, financial reporting and investor protection standards than U.S. issuers. Investments in non-U.S. securities may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. Because legal systems differ, there is also the possibility that there may not be protection against failure by other parties to complete transactions, and that it will be difficult to obtain or enforce legal judgments in certain countries. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. Additionally, where all or a portion of the Fund’s underlying securities are traded in a market that is closed when the market in which the Fund shares are listed and trading is open, there may be changes between the last quote from its closed foreign market and the value of such security during the Fund’s domestic trading day. Each of these factors can make investments in the Fund more volatile and potentially less liquid than other types of investments.
|
| TCW Flexible Income ETF | Emerging Markets Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Emerging Markets Risk. Investments in securities and instruments traded in developing or emerging markets, or that provide exposure to such securities or markets, can involve additional risks relating to political, economic, or regulatory conditions not associated with investments in U.S. securities and instruments. Such risks may impact the ability of the Fund to buy, sell or otherwise transfer securities, adversely affect the trading market and price for shares and cause the Fund to decline in value.
|
| TCW Flexible Income ETF | Issuer Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Issuer Risk. The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. Changes in the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline.
|
| TCW Flexible Income ETF | Price Volatility Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Price Volatility Risk. The value of the Fund’s investment portfolio will change as the prices of its investments go up or down.
|
| TCW Flexible Income ETF | Securities Selection Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Selection Risk. The securities held by the Fund may underperform those held by other funds investing in the same asset class or benchmarks that are representative of the asset class because of the portfolio managers’ choice of securities.
|
| TCW Flexible Income ETF | Liquidity Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Liquidity Risk. Lack of a ready market or restrictions on resale may limit the ability of the Fund to sell a security at an advantageous time or price. The liquidity of the Fund’s assets may change over time.
|
| TCW Flexible Income ETF | Frequent Trading Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Frequent Trading Risk. Frequent trading leads to increased portfolio turnover and higher transaction costs, which may reduce the Fund’s performance and may cause higher levels of current tax liability to shareholders in the Fund.
|
| TCW Flexible Income ETF | Collateralized Loan Obligations Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Collateralized Loan Obligations Risk. CLOs are securities backed by an underlying portfolio of loan obligations. CLOs issue classes or “tranches” of debt that vary in risk and yield and may experience substantial losses due to actual defaults, decrease of market value due to collateral defaults and exhaustion of subordinate tranches, market anticipation of defaults and investor aversion to CLO securities as a class. The risks of investing in CLOs depend largely on the tranche invested in and the type of the underlying loans in the tranche of the CLO in which the Fund invests. Subordinate tranche investments involve greater risk of loss than more senior tranches. CLOs also carry risks including, but not limited to, interest rate risk and credit risk. To the extent that the Fund invests in unrated CLO tranches, the Fund’s ability to achieve its investment objective will be more dependent on the Adviser’s credit analysis than would be the case when the Fund invests in rated CLO tranches.
|
| TCW Flexible Income ETF | Debt Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Debt Securities Risk. Debt securities risk is the risk that the value of a debt security may increase or decrease as a result of various factors, including changes in interest rates, actual or perceived inability or unwillingness of issuers to make principal or interest payments, market fluctuations and illiquidity in the debt securities market.
|
| TCW Flexible Income ETF | Call Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Call Risk. During periods of falling interest rates, an issuer of a callable security held by the Fund may “call” or repay the security before its stated maturity, and the Fund may have to reinvest the proceeds in securities with lower yields, which would result in a decline in the Fund’s income, or in securities with greater risks or with other less favorable features. CLOs are typically structured such that, after a specified period of time, the majority investor in the equity tranche can call (i.e., redeem) the securities issued by the CLO in full. The Fund may not be able to accurately predict when or which of its CLO investments may be called, resulting in the Fund having to reinvest the proceeds in unfavorable circumstances, which in turn could cause in a decline in the Fund’s income.
|
| TCW Flexible Income ETF | Inflation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of the Fund’s investments may not keep up with price increases from inflation.
|
| TCW Flexible Income ETF | Extension Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Extension Risk. Extension risk is the risk that in times of rising interest rates, borrowers may pay off their debt obligations more slowly, causing securities considered short- or intermediate-term to become longer-term securities that fluctuate more widely in response to changes in interest rates than shorter-term securities.
|
| TCW Flexible Income ETF | Prepayment Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Prepayment Risk. Prepayment risk is the risk that in times of declining interest rates, the Fund’s higher yielding securities may be prepaid and the Fund may have to replace them with securities having a lower yield.
|
| TCW Flexible Income ETF | Credit Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Credit Risk. Credit risk is the risk that an issuer may default in the payment of principal and/or interest on a security.
|
| TCW Flexible Income ETF | Junk Bond Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Junk Bond Risk. Junk bonk risk is the risk that junk bonds have a higher degree of default risk and may be less liquid and subject to greater price volatility than investment grade securities.
|
| TCW Flexible Income ETF | Distressed And Defaulted Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Distressed and Defaulted Securities Risk. Distressed and defaulted securities risk is the risk that the repayment of defaulted securities and obligations of distressed issuers is subject to significant uncertainties.
|
| TCW Flexible Income ETF | Valuation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Valuation Risk. Valuation risk is the risk that the portfolio instruments may be sold at prices different from the values established by the Fund, particularly for investments that trade in low volume, in volatile markets or over the counter or that are fair valued.
|
| TCW Flexible Income ETF | Unrated Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Unrated Securities Risk. Unrated securities risk is the risk that unrated securities may be less liquid than comparable rated securities, and the risk that the Adviser may not accurately evaluate the security’s comparative credit rating. This risk is greater for high yield securities, because the analysis of creditworthiness of issuers of high yield securities may be more complex than for issuers of investment grade securities.
|
| TCW Flexible Income ETF | Mezzanine Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Mezzanine Securities Risk. Mezzanine securities risk is the risk of investing in mezzanine securities, which generally are rated below investment grade or are unrated and present many of the same risks as senior loans, second lien loans and non-investment grade bonds. Mezzanine securities present additional risks because they typically are the most subordinated debt obligation in an issuer’s capital structure and are often unsecured. Mezzanine securities are also expected to be a highly illiquid investment.
|
| TCW Flexible Income ETF | Derivatives Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Derivatives Risk. A derivative is a financial contract, the value of which depends on or is derived from, the value of an underlying asset such as a security or an index. The Fund may invest in certain types of derivatives contracts, including futures. Compared to conventional securities, derivatives can be more sensitive to changes in interest rates or to sudden fluctuations in market prices and the Fund’s losses may be greater if it invests in derivatives than if it invests only in conventional securities.
Futures. A futures contract is a standardized, exchange-traded agreement to buy or sell a specific quantity of an underlying instrument at a specific price at a specific future time. The risk of loss in buying and selling futures contracts can be substantial. Small price movements in the instrument underlying a futures position may result in immediate and substantial losses to the Fund.
|
| TCW Flexible Income ETF | Swap Agreements Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Swap Agreements Risk. The risk of investing in swaps, which, in addition to risks applicable to derivatives generally, includes: (1) the inability to assign a swap contract without the consent of the counterparty; (2) potential default of the counterparty to a swap (which is enhanced if it is not subject to centralized clearing); (3) absence of a liquid secondary market for any particular swap at any time; and (4) possible inability of the Fund to close out a swap transaction at a time that otherwise would be favorable for it to do so.
|
| TCW Flexible Income ETF | Counterparty Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Counterparty Risk. Counterparty risk is the risk that the other party to a contract, such as a derivatives contract, will not fulfill its contractual obligations.
|
| TCW Flexible Income ETF | Leverage Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Leverage Risk. Leverage risk is the risk that leverage may result from certain transactions, including the use of derivatives and borrowing. This may impair the Fund’s liquidity, cause it to liquidate positions at an unfavorable time, increase its volatility or otherwise cause it not to achieve its intended result.
|
| TCW Flexible Income ETF | Foreign Currency Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Currency Risk. Foreign currency risk is the risk that foreign currencies may decline in value relative to the U.S. dollar and affect the Fund’s investments in foreign currencies, in securities that are denominated, trade and/or receive revenues in foreign currencies, or in derivatives that provide exposure to foreign currencies.
|
| TCW Flexible Income ETF | Asset Backed Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Asset-Backed Securities Risk. The risk of investing in asset-backed securities, including the risk of loss as a result of the impairment of the value of the underlying financial assets, prepayment risk and extension risk. Issuers of asset-backed securities may have limited ability to enforce the security interest in the underlying assets, and credit enhancements provided to support the asset-backed securities, if any, may be inadequate to protect investors in the event of default.
|
| TCW Flexible Income ETF | Bank Loan Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Bank Loan Risk. Bank loan risk is the risk of investing in corporate loans made by commercial banks and other financial institutions or institutional investors to companies that need capital to grow or restructure, which includes interest rate risk, liquidity risk and prepayment risk. The Fund may also be subject to the credit risk of other financial institutions and the risks associated with insufficient collateral securing a bank loan, limited available public information about a bank loan, delayed settlement, and less protection for holders of bank loans as compared to holders of registered securities. |
| TCW Flexible Income ETF | Money Market Short Term Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Money Market/Short-Term Securities Risk. To the extent the Fund holds cash or invests in money market or short-term securities, the Fund may be less likely to achieve its investment objective. In addition, it is possible that the Fund’s investments in these instruments could lose money.
|
| TCW Flexible Income ETF | Mortgage Backed Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Mortgage-Backed Securities Risk. Mortgage-backed securities risk is the risk of investing in mortgage-backed securities, including prepayment risk and extension risk. Mortgage-backed securities react differently to changes in interest rates than other bonds, and some mortgage-backed securities are not backed by the full faith and credit of the U.S. government.
|
| TCW Flexible Income ETF | Municipal Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Municipal Securities Risk. The risk of investing in municipal securities, including that the issuers of municipal securities may be unable to pay their obligations as they come due. The values of municipal securities may fluctuate as a result of changes in the cash flows generated by the revenue source or changes in the priority of the municipal obligation to receive the cash flows generated by the revenue source. Changes in federal tax laws or the activity of an issuer may adversely affect the tax-exempt status of municipal securities, may cause interest received and distributed to shareholders by the Fund to be taxable and may result in a significant decline in the values of such municipal securities.
|
| TCW Flexible Income ETF | U S Government Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | U.S. Government Securities Risk. U.S. government securities risk is the risk that debt securities issued or guaranteed by certain U.S. government agencies, instrumentalities, and sponsored enterprises are not supported by the full faith and credit of the U.S. government, and as so investments in their securities or obligations issued by them involve credit risk greater than investments in other types of U.S. government securities.
|
| TCW Flexible Income ETF | U S Treasury Obligations Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | U.S. Treasury Obligations Risk. U.S. Treasury obligations risk is the risk that the value of U.S. treasury obligations may decline as a result of changes in interest rates, certain political events in the U.S., and strained relations with certain foreign countries.
|
| TCW Flexible Income ETF | Below Investment Grade Mortgage Backed Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Below Investment Grade Mortgage-Backed Securities Risk. The Fund’s investments in residential mortgage-backed securities (“RMBS”) and commercial mortgage-backed securities (“CMBS”) that are rated below investment grade generally carry greater liquidity risk than their investment grade counterparts. Changes in market and regulatory conditions could adversely affect the liquidity of the Fund’s investments in below investment grade mortgage-backed securities or the ability of the Fund to sell these securities, thereby adversely impacting the value of your investment.
|
| TCW Flexible Income ETF | Interest Rates Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Interest Rate Risk. Interest rate risk is the risk that investments held by the Fund may decline in value because of changes in interest rates.
|
| TCW Flexible Income ETF | Risk Lose Money [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. |
| TCW High Yield Bond ETF | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. The Fund is subject to certain risks, including the principal risks noted below, any of which may adversely affect the Fund’s net asset value (“NAV”) per share, trading price, yield, total return and ability to meet its investment objective.
|
| TCW High Yield Bond ETF | E T F Structure Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ETF Structure Risks. The Fund is structured as an ETF and is subject to special risks, including:
Not Individually Redeemable. Shares are not individually redeemable by retail investors and may be redeemed from the Fund only by Authorized Participants at NAV in large blocks known as “Creation Units.” An Authorized Participant may incur brokerage costs purchasing enough shares to constitute a Creation Unit.
Trading Issues. An active trading market for the Fund’s shares may not be developed or maintained. Trading in shares on the NYSE may be halted due to market conditions or for reasons that, in the view of the NYSE, make trading in shares inadvisable, such as extraordinary market volatility. There can be no assurance that shares will continue to meet the listing requirements of the NYSE. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as Authorized Participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares may trade at a material discount to NAV and possibly face delisting: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Market Price Variance Risk. The market price of the Fund’s shares will fluctuate in response to changes in NAV and supply and demand for shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that shares may trade at a discount to NAV.
Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruptions in the creation/redemption process. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Additionally, in stressed market conditions, the market for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets for a Fund’s portfolio holdings, which may cause a significant variance in the market price of the ETF Class shares and their underlying value as well as an increase in the ETF Class shares’ bid-ask spread.
Fluctuation of Net Asset Value Risk. The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of and demand for the Fund’s shares on the NYSE. The Adviser cannot predict whether the shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time.
Authorized Participant Concentration Risk. Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. The Fund has a limited number of institutions that may act as Authorized Participants on an agency basis (i.e., on behalf of other market participants). To the extent that Authorized Participants exit the business or are unable to proceed with creation or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units, Fund shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts or delisting.
|
| TCW High Yield Bond ETF | Equity Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Equity Securities Risk. Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The net asset value of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.
|
| TCW High Yield Bond ETF | Market Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Market Risk. The Fund could lose money over short periods due to short term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
|
| TCW High Yield Bond ETF | Active Management Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Active Management Risk. The Fund is actively managed, which means that investment decisions are made based on the Adviser’s investment views. There is no guarantee that the investment views will produce the desired results or expected returns, which may cause the Fund to fail to meet its investment objective or to underperform its benchmark index or funds with similar investment objectives and strategies. Furthermore, active trading that can accompany active management may result in high portfolio turnover, which may have a negative impact on performance. Active trading may result in higher brokerage costs or mark-up charges, which are ultimately passed on to shareholders of the Fund. Active trading may also result in adverse tax consequences.
|
| TCW High Yield Bond ETF | Foreign Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Securities Risk. The Fund may have exposure to foreign markets as a result of its investments in foreign securities and securities denominated in foreign currencies. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. There may be less information publicly available about a non-U.S. issuer than a U.S. issuer. Non-U.S. issuers may be subject to different accounting, auditing, financial reporting and investor protection standards than U.S. issuers. Investments in non-U.S. securities may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. Because legal systems differ, there is also the possibility that there may not be protection against failure by other parties to complete transactions, and that it will be difficult to obtain or enforce legal judgments in certain countries. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. Additionally, where all or a portion of the Fund’s underlying securities are traded in a market that is closed when the market in which the Fund shares are listed and trading is open, there may be changes between the last quote from its closed foreign market and the value of such security during the Fund’s domestic trading day. Each of these factors can make investments in the Fund more volatile and potentially less liquid than other types of investments.
|
| TCW High Yield Bond ETF | Emerging Markets Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Emerging Markets Risk. Investments in securities and instruments traded in developing or emerging markets, or that provide exposure to such securities or markets, can involve additional risks relating to political, economic, or regulatory conditions not associated with investments in U.S. securities and instruments. Such risks may impact the ability of the Fund to buy, sell or otherwise transfer securities, adversely affect the trading market and price for shares and cause the Fund to decline in value.
|
| TCW High Yield Bond ETF | Issuer Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Issuer Risk. The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. Changes in the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline.
|
| TCW High Yield Bond ETF | Price Volatility Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Price Volatility Risk. The value of the Fund’s investment portfolio will change as the prices of its investments go up or down.
|
| TCW High Yield Bond ETF | Securities Selection Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Selection Risk. The securities held by the Fund may underperform those held by other funds investing in the same asset class or benchmarks that are representative of the asset class because of the portfolio managers’ choice of securities.
|
| TCW High Yield Bond ETF | Liquidity Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Liquidity Risk. Lack of a ready market or restrictions on resale may limit the ability of the Fund to sell a security at an advantageous time or price. The liquidity of the Fund’s assets may change over time.
|
| TCW High Yield Bond ETF | Frequent Trading Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Frequent Trading Risk. Frequent trading leads to increased portfolio turnover and higher transaction costs, which may reduce the Fund’s performance and may cause higher levels of current tax liability to shareholders in the Fund.
|
| TCW High Yield Bond ETF | Debt Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Debt Securities Risk. Debt securities risk is the risk that the value of a debt security may increase or decrease as a result of various factors, including changes in interest rates, actual or perceived inability or unwillingness of issuers to make principal or interest payments, market fluctuations and illiquidity in the debt securities market.
|
| TCW High Yield Bond ETF | Inflation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of the Fund’s investments may not keep up with price increases from inflation.
|
| TCW High Yield Bond ETF | Extension Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Extension Risk. Extension risk is the risk that in times of rising interest rates, borrowers may pay off their debt obligations more slowly, causing securities considered short- or intermediate-term to become longer-term securities that fluctuate more widely in response to changes in interest rates than shorter-term securities.
|
| TCW High Yield Bond ETF | Prepayment Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Prepayment Risk. Prepayment risk is the risk that in times of declining interest rates, the Fund’s higher yielding securities may be prepaid and the Fund may have to replace them with securities having a lower yield.
|
| TCW High Yield Bond ETF | Credit Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Credit Risk. Credit risk is the risk that an issuer may default in the payment of principal and/or interest on a security.
|
| TCW High Yield Bond ETF | Junk Bond Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Junk Bond Risk. Junk bonk risk is the risk that junk bonds have a higher degree of default risk and may be less liquid and subject to greater price volatility than investment grade securities.
|
| TCW High Yield Bond ETF | Distressed And Defaulted Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Distressed and Defaulted Securities Risk. Distressed and defaulted securities risk is the risk that the repayment of defaulted securities and obligations of distressed issuers is subject to significant uncertainties.
|
| TCW High Yield Bond ETF | Valuation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Valuation Risk. Valuation risk is the risk that the portfolio instruments may be sold at prices different from the values established by the Fund, particularly for investments that trade in low volume, in volatile markets or over the counter or that are fair valued.
|
| TCW High Yield Bond ETF | Unrated Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Unrated Securities Risk. Unrated securities risk is the risk that unrated securities may be less liquid than comparable rated securities, and the risk that the Adviser may not accurately evaluate the security’s comparative credit rating. This risk is greater for high yield securities, because the analysis of creditworthiness of issuers of high yield securities may be more complex than for issuers of investment grade securities.
|
| TCW High Yield Bond ETF | Mezzanine Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Mezzanine Securities Risk. Mezzanine securities risk is the risk of investing in mezzanine securities, which generally are rated below investment grade or are unrated and present many of the same risks as senior loans, second lien loans and non-investment grade bonds. Mezzanine securities present additional risks because they typically are the most subordinated debt obligation in an issuer’s capital structure and are often unsecured. Mezzanine securities are also expected to be a highly illiquid investment.
|
| TCW High Yield Bond ETF | When Issued And Delayed Delivery Securities [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | When-Issued and Delayed Delivery Securities. When-issued and delayed delivery securities involve the risk that the security the Fund buys will lose value prior to its delivery. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund may lose both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price.
|
| TCW High Yield Bond ETF | Derivatives Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Derivatives Risk. A derivative is a financial contract, the value of which depends on or is derived from, the value of an underlying asset such as a security or an index. The Fund may invest in certain types of derivatives contracts, including futures. Compared to conventional securities, derivatives can be more sensitive to changes in interest rates or to sudden fluctuations in market prices and the Fund’s losses may be greater if it invests in derivatives than if it invests only in conventional securities.
|
| TCW High Yield Bond ETF | Swap Agreements Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Swap Agreements Risk. The risk of investing in swaps, which, in addition to risks applicable to derivatives generally, includes: (1) the inability to assign a swap contract without the consent of the counterparty; (2) potential default of the counterparty to a swap (which is enhanced if it is not subject to centralized clearing); (3) absence of a liquid secondary market for any particular swap at any time; and (4) possible inability of the Fund to close out a swap transaction at a time that otherwise would be favorable for it to do so.
|
| TCW High Yield Bond ETF | Counterparty Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Counterparty Risk. Counterparty risk is the risk that the other party to a contract, such as a derivatives contract, will not fulfill its contractual obligations.
|
| TCW High Yield Bond ETF | Leverage Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Leverage Risk. Leverage risk is the risk that leverage may result from certain transactions, including the use of derivatives and borrowing. This may impair the Fund’s liquidity, cause it to liquidate positions at an unfavorable time, increase its volatility or otherwise cause it not to achieve its intended result.
|
| TCW High Yield Bond ETF | Foreign Currency Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Currency Risk. Foreign currency risk is the risk that foreign currencies may decline in value relative to the U.S. dollar and affect the Fund’s investments in foreign currencies, in securities that are denominated, trade and/or receive revenues in foreign currencies, or in derivatives that provide exposure to foreign currencies.
|
| TCW High Yield Bond ETF | Bank Loan Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Bank Loan Risk. Bank loan risk is the risk of investing in corporate loans made by commercial banks and other financial institutions or institutional investors to companies that need capital to grow or restructure, which includes interest rate risk, liquidity risk and prepayment risk. The Fund may also be subject to the credit risk of other financial institutions and the risks associated with insufficient collateral securing a bank loan, limited available public information about a bank loan, delayed settlement, and less protection for holders of bank loans as compared to holders of registered securities.
|
| TCW High Yield Bond ETF | Interest Rate Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Interest Rate Risk. Interest rate risk is the risk that investments held by the Fund may decline in value because of changes in interest rates.
|
| TCW High Yield Bond ETF | U S Government Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | U.S. Government Securities Risk. U.S. government securities risk is the risk that debt securities issued or guaranteed by certain U.S. government agencies, instrumentalities, and sponsored enterprises are not supported by the full faith and credit of the U.S. government, and as so investments in their securities or obligations issued by them involve credit risk greater than investments in other types of U.S. government securities. |
| TCW High Yield Bond ETF | Risk Lose Money [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. |
| TCW Multisector Credit Income ETF | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. The Fund is subject to certain risks, including the principal risks noted below, any of which may adversely affect the Fund’s net asset value (“NAV”) per share, trading price, yield, total return and ability to meet its investment objective.
|
| TCW Multisector Credit Income ETF | E T F Structure Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ETF Structure Risks. The Fund is structured as an ETF and is subject to special risks, including:
Not Individually Redeemable. Shares are not individually redeemable by retail investors and may be redeemed from the Fund only by Authorized Participants at NAV in large blocks known as “Creation Units.” An Authorized Participant may incur brokerage costs purchasing enough shares to constitute a Creation Unit.
Trading Issues. An active trading market for the Fund’s shares may not be developed or maintained. Trading in shares on the NYSE may be halted due to market conditions or for reasons that, in the view of the NYSE, make trading in shares inadvisable, such as extraordinary market volatility. There can be no assurance that shares will continue to meet the listing requirements of the NYSE. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as Authorized Participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares may trade at a material discount to NAV and possibly face delisting: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Market Price Variance Risk. The market price of the Fund’s shares will fluctuate in response to changes in NAV and supply and demand for shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that shares may trade at a discount to NAV.
Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruptions in the creation/redemption process. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Additionally, in stressed market conditions, the market for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets for a Fund’s portfolio holdings, which may cause a significant variance in the market price of the ETF Class shares and their underlying value as well as an increase in the ETF Class shares’ bid-ask spread.
Fluctuation of Net Asset Value Risk. The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of and demand for the Fund’s shares on the NYSE. The Adviser cannot predict whether the shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time.
Authorized Participant Concentration Risk. Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. The Fund has a limited number of institutions that may act as Authorized Participants on an agency basis (i.e., on behalf of other market participants). To the extent that Authorized Participants exit the business or are unable to proceed with creation or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units, Fund shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts or delisting.
|
| TCW Multisector Credit Income ETF | Equity Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Equity Securities Risk. Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The net asset value of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.
|
| TCW Multisector Credit Income ETF | Market Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Market Risk. The Fund could lose money over short periods due to short term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
|
| TCW Multisector Credit Income ETF | Active Management Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Active Management Risk. The Fund is actively managed, which means that investment decisions are made based on the Adviser’s investment views. There is no guarantee that the investment views will produce the desired results or expected returns, which may cause the Fund to fail to meet its investment objective or to underperform its benchmark index or funds with similar investment objectives and strategies. Furthermore, active trading that can accompany active management may result in high portfolio turnover, which may have a negative impact on performance. Active trading may result in higher brokerage costs or mark-up charges, which are ultimately passed on to shareholders of the Fund. Active trading may also result in adverse tax consequences.
|
| TCW Multisector Credit Income ETF | Foreign Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Securities Risk. The Fund may have exposure to foreign markets as a result of its investments in foreign securities and securities denominated in foreign currencies. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. There may be less information publicly available about a non-U.S. issuer than a U.S. issuer. Non-U.S. issuers may be subject to different accounting, auditing, financial reporting and investor protection standards than U.S. issuers. Investments in non-U.S. securities may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. Because legal systems differ, there is also the possibility that there may not be protection against failure by other parties to complete transactions, and that it will be difficult to obtain or enforce legal judgments in certain countries. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. Additionally, where all or a portion of the Fund’s underlying securities are traded in a market that is closed when the market in which the Fund shares are listed and trading is open, there may be changes between the last quote from its closed foreign market and the value of such security during the Fund’s domestic trading day. Each of these factors can make investments in the Fund more volatile and potentially less liquid than other types of investments.
|
| TCW Multisector Credit Income ETF | Emerging Markets Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Emerging Markets Risk. Investments in securities and instruments traded in developing or emerging markets, or that provide exposure to such securities or markets, can involve additional risks relating to political, economic, or regulatory conditions not associated with investments in U.S. securities and instruments. Such risks may impact the ability of the Fund to buy, sell or otherwise transfer securities, adversely affect the trading market and price for shares and cause the Fund to decline in value.
|
| TCW Multisector Credit Income ETF | Issuer Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Issuer Risk. The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. Changes in the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline.
|
| TCW Multisector Credit Income ETF | Price Volatility Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Price Volatility Risk. The value of the Fund’s investment portfolio will change as the prices of its investments go up or down.
|
| TCW Multisector Credit Income ETF | Securities Selection Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Selection Risk. The securities held by the Fund may underperform those held by other funds investing in the same asset class or benchmarks that are representative of the asset class because of the portfolio managers’ choice of securities.
|
| TCW Multisector Credit Income ETF | Liquidity Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Liquidity Risk. Lack of a ready market or restrictions on resale may limit the ability of the Fund to sell a security at an advantageous time or price. The liquidity of the Fund’s assets may change over time.
|
| TCW Multisector Credit Income ETF | Frequent Trading Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Frequent Trading Risk. Frequent trading leads to increased portfolio turnover and higher transaction costs, which may reduce the Fund’s performance and may cause higher levels of current tax liability to shareholders in the Fund.
|
| TCW Multisector Credit Income ETF | Collateralized Loan Obligations Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Collateralized Loan Obligations Risk. CLOs are securities backed by an underlying portfolio of loan obligations. CLOs issue classes or “tranches” of debt that vary in risk and yield and may experience substantial losses due to actual defaults, decrease of market value due to collateral defaults and exhaustion of subordinate tranches, market anticipation of defaults and investor aversion to CLO securities as a class. The risks of investing in CLOs depend largely on the tranche invested in and the type of the underlying loans in the tranche of the CLO in which the Fund invests. Subordinate tranche investments involve greater risk of loss than more senior tranches. CLOs also carry risks including, but not limited to, interest rate risk and credit risk. To the extent that the Fund invests in unrated CLO tranches, the Fund’s ability to achieve its investment objective will be more dependent on the Adviser’s credit analysis than would be the case when the Fund invests in rated CLO tranches.
|
| TCW Multisector Credit Income ETF | Debt Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Debt Securities Risk. Debt securities risk is the risk that the value of a debt security may increase or decrease as a result of various factors, including changes in interest rates, actual or perceived inability or unwillingness of issuers to make principal or interest payments, market fluctuations and illiquidity in the debt securities market.
|
| TCW Multisector Credit Income ETF | Senior Loan Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Senior Loan Risk. The risk of investing in senior loans may be greater than the risk of investing in other types of securities, as a result of, among other factors, less readily available, reliable information about most senior loans than is the case for many other types of securities; possible loss of significant value before a default occurs; possible decline in value or illiquidity of collateral; and lack of an active trading market for certain senior loans.
|
| TCW Multisector Credit Income ETF | Interests Rate Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Interest Rate Risk. Interest rate risk is the risk that investments held by the Fund may decline in value because of changes in interest rates.
|
| TCW Multisector Credit Income ETF | Call Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Call Risk. During periods of falling interest rates, an issuer of a callable security held by the Fund may “call” or repay the security before its stated maturity, and the Fund may have to reinvest the proceeds in securities with lower yields, which would result in a decline in the Fund’s income, or in securities with greater risks or with other less favorable features. CLOs are typically structured such that, after a specified period of time, the majority investor in the equity tranche can call (i.e., redeem) the securities issued by the CLO in full. The Fund may not be able to accurately predict when or which of its CLO investments may be called, resulting in the Fund having to reinvest the proceeds in unfavorable circumstances, which in turn could cause in a decline in the Fund’s income.
|
| TCW Multisector Credit Income ETF | Inflation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of the Fund’s investments may not keep up with price increases from inflation.
|
| TCW Multisector Credit Income ETF | Extension Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Extension Risk. Extension risk is the risk that in times of rising interest rates, borrowers may pay off their debt obligations more slowly, causing securities considered short- or intermediate-term to become longer-term securities that fluctuate more widely in response to changes in interest rates than shorter-term securities.
|
| TCW Multisector Credit Income ETF | Junk Bond Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Junk Bond Risk. Junk bonk risk is the risk that junk bonds have a higher degree of default risk and may be less liquid and subject to greater price volatility than investment grade securities.
|
| TCW Multisector Credit Income ETF | Distressed And Defaulted Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Distressed and Defaulted Securities Risk. Distressed and defaulted securities risk is the risk that the repayment of defaulted securities and obligations of distressed issuers is subject to significant uncertainties.
|
| TCW Multisector Credit Income ETF | Privately Issued Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Privately Issued Securities Risk. CLO securities are generally privately-issued securities, and are normally purchased pursuant to Rule 144A or Regulation S under the Securities Act of 1933. Privately-issued securities typically may be resold only to qualified institutional buyers, in a privately negotiated transaction, to a limited number of purchasers, or in limited quantities after they have been held for a specified period of time and other conditions are met for an exemption from registration. Because there may be relatively few potential purchasers for such securities, especially under adverse market or economic conditions or in the event of adverse changes in the financial condition of the issuer, the Fund may find it more difficult to sell such securities when it may be advisable to do so or it may be able to sell such securities only at prices lower than if such securities were more widely held and traded.
|
| TCW Multisector Credit Income ETF | Covenant Lite Loans Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Covenant Lite Loans Risk. Certain of the underlying loans in which a CLO may invest may be issued or offered as “covenant lite” loans, which have few or no financial maintenance covenants that would require a borrower to maintain certain financial metrics. A CLO may be delayed in enforcing its interests in covenant lite loans, which may result in losses.
|
| TCW Multisector Credit Income ETF | Valuation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Valuation Risk. Valuation risk is the risk that the portfolio instruments may be sold at prices different from the values established by the Fund, particularly for investments that trade in low volume, in volatile markets or over the counter or that are fair valued.
|
| TCW Multisector Credit Income ETF | Unrated Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Unrated Securities Risk. Unrated securities risk is the risk that unrated securities may be less liquid than comparable rated securities, and the risk that the Adviser may not accurately evaluate the security’s comparative credit rating. This risk is greater for high yield securities, because the analysis of creditworthiness of issuers of high yield securities may be more complex than for issuers of investment grade securities.
|
| TCW Multisector Credit Income ETF | Mezzanine Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Mezzanine Securities Risk. Mezzanine securities risk is the risk of investing in mezzanine securities, which generally are rated below investment grade or are unrated and present many of the same risks as senior loans, second lien loans and non-investment grade bonds. Mezzanine securities present additional risks because they typically are the most subordinated debt obligation in an issuer’s capital structure and are often unsecured. Mezzanine securities are also expected to be a highly illiquid investment.
|
| TCW Multisector Credit Income ETF | Derivatives Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Derivatives Risk. A derivative is a financial contract, the value of which depends on or is derived from, the value of an underlying asset such as a security or an index. The Fund may invest in certain types of derivatives contracts, including futures. Compared to conventional securities, derivatives can be more sensitive to changes in interest rates or to sudden fluctuations in market prices and the Fund’s losses may be greater if it invests in derivatives than if it invests only in conventional securities.
Futures. A futures contract is a standardized, exchange-traded agreement to buy or sell a specific quantity of an underlying instrument at a specific price at a specific future time. The risk of loss in buying and selling futures contracts can be substantial. Small price movements in the instrument underlying a futures position may result in immediate and substantial losses to the Fund.
|
| TCW Multisector Credit Income ETF | Swap Agreements Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Swap Agreements Risk. The risk of investing in swaps, which, in addition to risks applicable to derivatives generally, includes: (1) the inability to assign a swap contract without the consent of the counterparty; (2) potential default of the counterparty to a swap (which is enhanced if it is not subject to centralized clearing); (3) absence of a liquid secondary market for any particular swap at any time; and (4) possible inability of the Fund to close out a swap transaction at a time that otherwise would be favorable for it to do so.
|
| TCW Multisector Credit Income ETF | Counterparty Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Counterparty Risk. Counterparty risk is the risk that the other party to a contract, such as a derivatives contract, will not fulfill its contractual obligations.
|
| TCW Multisector Credit Income ETF | Leverage Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Leverage Risk. Leverage risk is the risk that leverage may result from certain transactions, including the use of derivatives and borrowing. This may impair the Fund’s liquidity, cause it to liquidate positions at an unfavorable time, increase its volatility or otherwise cause it not to achieve its intended result.
|
| TCW Multisector Credit Income ETF | Foreign Currency Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Currency Risk. Foreign currency risk is the risk that foreign currencies may decline in value relative to the U.S. dollar and affect the Fund’s investments in foreign currencies, in securities that are denominated, trade and/or receive revenues in foreign currencies, or in derivatives that provide exposure to foreign currencies.
|
| TCW Multisector Credit Income ETF | Asset Backed Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Asset-Backed Securities Risk. The risk of investing in asset-backed securities, including the risk of loss as a result of the impairment of the value of the underlying financial assets, prepayment risk and extension risk. Issuers of asset-backed securities may have limited ability to enforce the security interest in the underlying assets, and credit enhancements provided to support the asset-backed securities, if any, may be inadequate to protect investors in the event of default.
|
| TCW Multisector Credit Income ETF | Bank Loan Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Bank Loan Risk. Bank loan risk is the risk of investing in corporate loans made by commercial banks and other financial institutions or institutional investors to companies that need capital to grow or restructure, which includes interest rate risk, liquidity risk and prepayment risk. The Fund may also be subject to the credit risk of other financial institutions and the risks associated with insufficient collateral securing a bank loan, limited available public information about a bank loan, delayed settlement, and less protection for holders of bank loans as compared to holders of registered securities.
|
| TCW Multisector Credit Income ETF | Credits Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Credit Risk. Credit risk is the risk that an issuer may default in the payment of principal and/or interest on a security.
|
| TCW Multisector Credit Income ETF | Money Market Short Term Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Money Market/Short-Term Securities Risk. To the extent the Fund holds cash or invests in money market or short-term securities, the Fund may be less likely to achieve its investment objective. In addition, it is possible that the Fund’s investments in these instruments could lose money.
|
| TCW Multisector Credit Income ETF | Mortgage Backed Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Mortgage-Backed Securities Risk. Mortgage-backed securities risk is the risk of investing in mortgage-backed securities, including prepayment risk and extension risk. Mortgage-backed securities react differently to changes in interest rates than other bonds, and some mortgage-backed securities are not backed by the full faith and credit of the U.S. government.
|
| TCW Multisector Credit Income ETF | Municipal Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Municipal Securities Risk. The risk of investing in municipal securities, including that the issuers of municipal securities may be unable to pay their obligations as they come due. The values of municipal securities may fluctuate as a result of changes in the cash flows generated by the revenue source or changes in the priority of the municipal obligation to receive the cash flows generated by the revenue source. Changes in federal tax laws or the activity of an issuer may adversely affect the tax-exempt status of municipal securities, may cause interest received and distributed to shareholders by the Fund to be taxable and may result in a significant decline in the values of such municipal securities.
|
| TCW Multisector Credit Income ETF | Prepayments Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Prepayment Risk. Prepayment risk is the risk that in times of declining interest rates, the Fund’s higher yielding securities may be prepaid and the Fund may have to replace them with securities having a lower yield.
|
| TCW Multisector Credit Income ETF | U S Government Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | U.S. Government Securities Risk. U.S. government securities risk is the risk that debt securities issued or guaranteed by certain U.S. government agencies, instrumentalities, and sponsored enterprises are not supported by the full faith and credit of the U.S. government, and as so investments in their securities or obligations issued by them involve credit risk greater than investments in other types of U.S. government securities.
|
| TCW Multisector Credit Income ETF | U S Treasury Obligations Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | U.S. Treasury Obligations Risk. U.S. Treasury obligations risk is the risk that the value of U.S. treasury obligations may decline as a result of changes in interest rates, certain political events in the U.S., and strained relations with certain foreign countries. |
| TCW Multisector Credit Income ETF | Below Investment Grade Mortgage Backed Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Below Investment Grade Mortgage-Backed Securities Risk. The Fund’s investments in residential mortgage-backed securities (“RMBS”) and commercial mortgage-backed securities (“CMBS”) that are rated below investment grade generally carry greater liquidity risk than their investment grade counterparts. Changes in market and regulatory conditions could adversely affect the liquidity of the Fund’s investments in below investment grade mortgage-backed securities or the ability of the Fund to sell these securities, thereby adversely impacting the value of your investment.
|
| TCW Multisector Credit Income ETF | Risk Lose Money [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. |
| TCW Senior Loan ETF | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. The Fund is subject to certain risks, including the principal risks noted below, any of which may adversely affect the Fund’s net asset value (“NAV”) per share, trading price, yield, total return and ability to meet its investment objective.
|
| TCW Senior Loan ETF | E T F Structure Risks [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | ETF Structure Risks. The Fund is structured as an ETF and is subject to special risks, including:
Not Individually Redeemable. Shares are not individually redeemable by retail investors and may be redeemed from the Fund only by Authorized Participants at NAV in large blocks known as “Creation Units.” An Authorized Participant may incur brokerage costs purchasing enough shares to constitute a Creation Unit.
Trading Issues. An active trading market for the Fund’s shares may not be developed or maintained. Trading in shares on the NYSE may be halted due to market conditions or for reasons that, in the view of the NYSE, make trading in shares inadvisable, such as extraordinary market volatility. There can be no assurance that shares will continue to meet the listing requirements of the NYSE. If the Fund’s shares are traded outside a collateralized settlement system, the number of financial institutions that can act as Authorized Participants that can post collateral on an agency basis is limited, which may limit the market for the Fund’s shares. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, shares may trade at a material discount to NAV and possibly face delisting: (i) Authorized Participants exit the business or otherwise become unable to process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.
Market Price Variance Risk. The market price of the Fund’s shares will fluctuate in response to changes in NAV and supply and demand for shares and will include a “bid-ask spread” charged by the exchange specialists, market makers or other participants that trade the particular security. There may be times when the market price and the NAV vary significantly. This means that shares may trade at a discount to NAV.
Market Trading Risk. The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruptions in the creation/redemption process. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Additionally, in stressed market conditions, the market for the ETF Class shares may become less liquid in response to deteriorating liquidity in the markets for a Fund’s portfolio holdings, which may cause a significant variance in the market price of the ETF Class shares and their underlying value as well as an increase in the ETF Class shares’ bid-ask spread.
Fluctuation of Net Asset Value Risk. The NAV of the Fund’s shares will generally fluctuate with changes in the market value of the Fund’s holdings. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV as well as the relative supply of and demand for the Fund’s shares on the NYSE. The Adviser cannot predict whether the shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time.
Authorized Participant Concentration Risk. Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund, and none of those Authorized Participants is obligated to engage in creation and/or redemption transactions. The Fund has a limited number of institutions that may act as Authorized Participants on an agency basis (i.e., on behalf of other market participants). To the extent that Authorized Participants exit the business or are unable to proceed with creation or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units, Fund shares may be more likely to trade at a premium or discount to NAV and possibly face trading halts or delisting.
|
| TCW Senior Loan ETF | Equity Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Equity Securities Risk. Equity securities are subject to changes in value, and their values may be more volatile than those of other asset classes. The net asset value of the Fund will fluctuate based on changes in the value of the equity securities held by the Fund. Equity prices can fall rapidly in response to developments affecting a specific company or industry, or to changing economic, political or market conditions.
|
| TCW Senior Loan ETF | Market Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Market Risk. The Fund could lose money over short periods due to short term market movements and over longer periods during more prolonged market downturns. Local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events could have a significant impact on the Fund and its investments and could result in increased premiums or discounts to the Fund’s NAV.
|
| TCW Senior Loan ETF | Active Management Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Active Management Risk. The Fund is actively managed, which means that investment decisions are made based on the Adviser’s investment views. There is no guarantee that the investment views will produce the desired results or expected returns, which may cause the Fund to fail to meet its investment objective or to underperform its benchmark index or funds with similar investment objectives and strategies. Furthermore, active trading that can accompany active management may result in high portfolio turnover, which may have a negative impact on performance. Active trading may result in higher brokerage costs or mark-up charges, which are ultimately passed on to shareholders of the Fund. Active trading may also result in adverse tax consequences.
|
| TCW Senior Loan ETF | Foreign Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Securities Risk. The Fund may have exposure to foreign markets as a result of its investments in foreign securities and securities denominated in foreign currencies. Investments in non-U.S. securities involve certain risks that may not be present with investments in U.S. securities. For example, investments in non-U.S. securities may be subject to risk of loss due to foreign currency fluctuations or to political or economic instability. There may be less information publicly available about a non-U.S. issuer than a U.S. issuer. Non-U.S. issuers may be subject to different accounting, auditing, financial reporting and investor protection standards than U.S. issuers. Investments in non-U.S. securities may be subject to withholding or other taxes and may be subject to additional trading, settlement, custodial, and operational risks. Because legal systems differ, there is also the possibility that there may not be protection against failure by other parties to complete transactions, and that it will be difficult to obtain or enforce legal judgments in certain countries. It may not be possible for the Fund to repatriate capital, dividends, interest, and other income from a particular country or governmental entity. Additionally, where all or a portion of the Fund’s underlying securities are traded in a market that is closed when the market in which the Fund shares are listed and trading is open, there may be changes between the last quote from its closed foreign market and the value of such security during the Fund’s domestic trading day. Each of these factors can make investments in the Fund more volatile and potentially less liquid than other types of investments.
|
| TCW Senior Loan ETF | Emerging Markets Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Emerging Markets Risk. Investments in securities and instruments traded in developing or emerging markets, or that provide exposure to such securities or markets, can involve additional risks relating to political, economic, or regulatory conditions not associated with investments in U.S. securities and instruments. Such risks may impact the ability of the Fund to buy, sell or otherwise transfer securities, adversely affect the trading market and price for shares and cause the Fund to decline in value.
|
| TCW Senior Loan ETF | Issuer Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Issuer Risk. The performance of the Fund depends on the performance of individual securities to which the Fund has exposure. Changes in the financial condition or credit rating of an issuer of those securities may cause the value of the securities to decline.
|
| TCW Senior Loan ETF | Price Volatility Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Price Volatility Risk. The value of the Fund’s investment portfolio will change as the prices of its investments go up or down.
|
| TCW Senior Loan ETF | Securities Selection Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Securities Selection Risk. The securities held by the Fund may underperform those held by other funds investing in the same asset class or benchmarks that are representative of the asset class because of the portfolio managers’ choice of securities.
|
| TCW Senior Loan ETF | Liquidity Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Liquidity Risk. Lack of a ready market or restrictions on resale may limit the ability of the Fund to sell a security at an advantageous time or price. The liquidity of the Fund’s assets may change over time.
|
| TCW Senior Loan ETF | Frequent Trading Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Frequent Trading Risk. Frequent trading leads to increased portfolio turnover and higher transaction costs, which may reduce the Fund’s performance and may cause higher levels of current tax liability to shareholders in the Fund. |
| TCW Senior Loan ETF | Collateralized Loan Obligations Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Collateralized Loan Obligations Risk. CLOs are securities backed by an underlying portfolio of loan obligations. CLOs issue classes or “tranches” of debt that vary in risk and yield and may experience substantial losses due to actual defaults, decrease of market value due to collateral defaults and exhaustion of subordinate tranches, market anticipation of defaults and investor aversion to CLO securities as a class. The risks of investing in CLOs depend largely on the tranche invested in and the type of the underlying loans in the tranche of the CLO in which the Fund invests. Subordinate tranche investments involve greater risk of loss than more senior tranches. CLOs also carry risks including, but not limited to, interest rate risk and credit risk. To the extent that the Fund invests in unrated CLO tranches, the Fund’s ability to achieve its investment objective will be more dependent on the Adviser’s credit analysis than would be the case when the Fund invests in rated CLO tranches.
|
| TCW Senior Loan ETF | Debt Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Debt Securities Risk. Debt securities risk is the risk that the value of a debt security may increase or decrease as a result of various factors, including changes in interest rates, actual or perceived inability or unwillingness of issuers to make principal or interest payments, market fluctuations and illiquidity in the debt securities market.
|
| TCW Senior Loan ETF | Senior Loan Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Senior Loan Risk. The risk of investing in senior loans may be greater than the risk of investing in other types of securities, as a result of, among other factors, less readily available, reliable information about most senior loans than is the case for many other types of securities; possible loss of significant value before a default occurs; possible decline in value or illiquidity of collateral; and lack of an active trading market for certain senior loans.
|
| TCW Senior Loan ETF | Interests Rate Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Interest Rate Risk. Interest rate risk is the risk that investments held by the Fund may decline in value because of changes in interest rates.
|
| TCW Senior Loan ETF | Call Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Call Risk. During periods of falling interest rates, an issuer of a callable security held by the Fund may “call” or repay the security before its stated maturity, and the Fund may have to reinvest the proceeds in securities with lower yields, which would result in a decline in the Fund’s income, or in securities with greater risks or with other less favorable features. CLOs are typically structured such that, after a specified period of time, the majority investor in the equity tranche can call (i.e., redeem) the securities issued by the CLO in full. The Fund may not be able to accurately predict when or which of its CLO investments may be called, resulting in the Fund having to reinvest the proceeds in unfavorable circumstances, which in turn could cause in a decline in the Fund’s income.
|
| TCW Senior Loan ETF | Inflation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Inflation Risk. Inflation risk is the risk that the value of the Fund’s investments may not keep up with price increases from inflation.
|
| TCW Senior Loan ETF | Extension Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Extension Risk. Extension risk is the risk that in times of rising interest rates, borrowers may pay off their debt obligations more slowly, causing securities considered short- or intermediate-term to become longer-term securities that fluctuate more widely in response to changes in interest rates than shorter-term securities.
|
| TCW Senior Loan ETF | Junk Bond Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Junk Bond Risk. Junk bonk risk is the risk that junk bonds have a higher degree of default risk and may be less liquid and subject to greater price volatility than investment grade securities.
|
| TCW Senior Loan ETF | Distressed And Defaulted Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Distressed and Defaulted Securities Risk. Distressed and defaulted securities risk is the risk that the repayment of defaulted securities and obligations of distressed issuers is subject to significant uncertainties.
|
| TCW Senior Loan ETF | Valuation Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Valuation Risk. Valuation risk is the risk that the portfolio instruments may be sold at prices different from the values established by the Fund, particularly for investments that trade in low volume, in volatile markets or over the counter or that are fair valued.
|
| TCW Senior Loan ETF | Unrated Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Unrated Securities Risk. Unrated securities risk is the risk that unrated securities may be less liquid than comparable rated securities, and the risk that the Adviser may not accurately evaluate the security’s comparative credit rating. This risk is greater for high yield securities, because the analysis of creditworthiness of issuers of high yield securities may be more complex than for issuers of investment grade securities.
|
| TCW Senior Loan ETF | Mezzanine Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Mezzanine Securities Risk. Mezzanine securities risk is the risk of investing in mezzanine securities, which generally are rated below investment grade or are unrated and present many of the same risks as senior loans, second lien loans and non-investment grade bonds. Mezzanine securities present additional risks because they typically are the most subordinated debt obligation in an issuer’s capital structure and are often unsecured. Mezzanine securities are also expected to be a highly illiquid investment.
|
| TCW Senior Loan ETF | Derivatives Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Derivatives Risk. A derivative is a financial contract, the value of which depends on or is derived from, the value of an underlying asset such as a security or an index. The Fund may invest in certain types of derivatives contracts, including futures. Compared to conventional securities, derivatives can be more sensitive to changes in interest rates or to sudden fluctuations in market prices and the Fund’s losses may be greater if it invests in derivatives than if it invests only in conventional securities.
Futures. A futures contract is a standardized, exchange-traded agreement to buy or sell a specific quantity of an underlying instrument at a specific price at a specific future time. The risk of loss in buying and selling futures contracts can be substantial. Small price movements in the instrument underlying a futures position may result in immediate and substantial losses to the Fund.
|
| TCW Senior Loan ETF | Swap Agreements Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Swap Agreements Risk. The risk of investing in swaps, which, in addition to risks applicable to derivatives generally, includes: (1) the inability to assign a swap contract without the consent of the counterparty; (2) potential default of the counterparty to a swap (which is enhanced if it is not subject to centralized clearing); (3) absence of a liquid secondary market for any particular swap at any time; and (4) possible inability of the Fund to close out a swap transaction at a time that otherwise would be favorable for it to do so.
|
| TCW Senior Loan ETF | Counterparty Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Counterparty Risk. Counterparty risk is the risk that the other party to a contract, such as a derivatives contract, will not fulfill its contractual obligations.
|
| TCW Senior Loan ETF | Leverage Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Leverage Risk. Leverage risk is the risk that leverage may result from certain transactions, including the use of derivatives and borrowing. This may impair the Fund’s liquidity, cause it to liquidate positions at an unfavorable time, increase its volatility or otherwise cause it not to achieve its intended result.
|
| TCW Senior Loan ETF | Foreign Currency Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Foreign Currency Risk. Foreign currency risk is the risk that foreign currencies may decline in value relative to the U.S. dollar and affect the Fund’s investments in foreign currencies, in securities that are denominated, trade and/or receive revenues in foreign currencies, or in derivatives that provide exposure to foreign currencies.
|
| TCW Senior Loan ETF | Bank Loan Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Bank Loan Risk. Bank loan risk is the risk of investing in corporate loans made by commercial banks and other financial institutions or institutional investors to companies that need capital to grow or restructure, which includes interest rate risk, liquidity risk and prepayment risk. The Fund may also be subject to the credit risk of other financial institutions and the risks associated with insufficient collateral securing a bank loan, limited available public information about a bank loan, delayed settlement, and less protection for holders of bank loans as compared to holders of registered securities.
|
| TCW Senior Loan ETF | Credits Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Credit Risk. Credit risk is the risk that an issuer may default in the payment of principal and/or interest on a security.
|
| TCW Senior Loan ETF | Prepayments Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Prepayment Risk. Prepayment risk is the risk that in times of declining interest rates, the Fund’s higher yielding securities may be prepaid and the Fund may have to replace them with securities having a lower yield.
|
| TCW Senior Loan ETF | U S Government Securities Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | U.S. Government Securities Risk. U.S. government securities risk is the risk that debt securities issued or guaranteed by certain U.S. government agencies, instrumentalities, and sponsored enterprises are not supported by the full faith and credit of the U.S. government, and so investments in securities or obligations issued by them involve credit risk greater than investments in other types of U.S. government securities.
|
| TCW Senior Loan ETF | Second Lien Loan Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Second Lien Loan Risk. Investments in second lien loans are subject to similar risks as those associated with investments in senior loans as well as the additional risk that the cash flow of the borrower and property securing the loan or debt, if any, may be insufficient to meet scheduled payments after giving effect to the senior secured obligations of the borrower.
|
| TCW Senior Loan ETF | Short Sales Risk [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | Short Sales Risk. Short sales risk is the risk that the use of short sales, which are speculative investments, may cause the Fund to lose money if the value of a security does not go down as the Adviser expects. The risk of loss is theoretically unlimited if the value of the security sold short continues to increase. In addition, the use of borrowing and short sales may cause the Fund to have higher expenses (especially interest and dividend expenses) than those of other mutual funds that do not engage in short sales.
|
| TCW Senior Loan ETF | Risk Lose Money [Member] | |
| Prospectus [Line Items] | |
| Risk [Text Block] | As with any investment, you could lose all or part of your investment in the Fund, and the Fund’s performance could trail that of other investments. |