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Dimensional US Large Cap Value ETF  
Risk/Return: rr_RiskReturnAbstract  
Risk/Return [Heading] rr_RiskReturnHeading Dimensional US Large Cap Value ETF
Objective [Heading] rr_ObjectiveHeading Investment Objective
Objective, Primary [Text Block] rr_ObjectivePrimaryTextBlock

The investment objective of the Dimensional US Large Cap Value ETF (the “US Large Cap Value ETF” or “Portfolio”) is to achieve long-term capital appreciation.
Expense [Heading] rr_ExpenseHeading Fees and Expenses of the Portfolio
Expense Narrative [Text Block] rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses you may pay if you buy, hold or sell shares of the US Large Cap Value ETF. You may also incur usual and customary brokerage commissions when buying or selling shares of the Portfolio, which are not reflected in the table or Example that follows.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption Shareholder Fees (fees paid directly from your investment): None
Operating Expenses Caption [Text] rr_OperatingExpensesCaption Annual Fund Operating Expenses (expenses that you pay eachyear as a percentage of the value of your investment)
Fee Waiver or Reimbursement over Assets, Date of Termination rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination Feb. 28, 2024
Portfolio Turnover [Heading] rr_PortfolioTurnoverHeading Portfolio Turnover
Portfolio Turnover [Text Block] rr_PortfolioTurnoverTextBlock

The US Large Cap Value ETF pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when Portfolio shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Portfolio’s performance. Because the Portfolio is new, information about portfolio turnover rate is not yet available.
Other Expenses, New Fund, Based on Estimates [Text] rr_OtherExpensesNewFundBasedOnEstimates The Portfolio is a new portfolio, so the “Other Expenses” shown are based on anticipated fees and expenses for the first full fiscal year.
Expense Example [Heading] rr_ExpenseExampleHeading Example
Expense Example Narrative [Text Block] rr_ExpenseExampleNarrativeTextBlock

This Example is meant to help you compare the cost of investing in the US Large Cap Value ETF with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Portfolio’s operating expenses remain the same. The costs for the Portfolio reflect the net expenses of the Portfolio that result from the contractual expense waiver in the first year only. Although your actual costs may be higher or lower, based on these assumptions, your costs whether you redeem or hold your shares would be:
Strategy [Heading] rr_StrategyHeading Principal Investment Strategies
Strategy Narrative [Text Block] rr_StrategyNarrativeTextBlock

To achieve the US Large Cap Value ETF’s investment objective, the Advisor implements an integrated investment approach that combines research, portfolio design, portfolio management, and trading functions. As further described below, the Portfolio’s design emphasizes long-term drivers of expected returns identified by the Advisor’s research, while balancing risk through broad diversification across companies and sectors. The Advisor’s portfolio management and trading processes further balance those long-term drivers of expected returns with shorter-term drivers of expected returns and trading costs.

 

The Portfolio is designed to purchase a broad and diverse group of readily marketable securities of large U.S. companies that the Advisor determines to be value stocks. A company’s market capitalization is the number of its shares outstanding times its price per share. Under a market capitalization weighted approach, companies with higher market capitalizations generally represent a larger proportion of the Portfolio than companies with relatively lower market capitalizations. The Advisor may overweight certain stocks, including smaller companies, lower relative price stocks, and/or higher profitability stocks within the large-cap value segment of the U.S. market. An equity issuer is considered to have a low relative price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing relative price, the Advisor may consider additional factors such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability because it has high earnings or profits from operations in relation to its book value or assets. The criteria the Advisor uses for assessing relative price and profitability are subject to change from time to time.

 

As a non-fundamental policy, under normal circumstances, the Portfolio will invest at least 80% of its net assets in securities of large cap U.S. companies. As of the date of this Prospectus, for purposes of the Portfolio, the Advisor considers large cap companies to be companies whose market capitalizations are generally in the highest 90% of total market capitalization or companies whose market capitalizations are larger than or equal to the 1,000th largest U.S. company, whichever results in the higher market capitalization break. Total market capitalization is based on the market capitalization of eligible U.S. operating companies listed on a securities exchange in the United States that is deemed appropriate by the Advisor. Under the Advisor’s market capitalization guidelines described above, based on market capitalization data as of October 31, 2022, the market capitalization of a large cap company would be $7,597 million or above. This threshold will change due to market conditions.

The Advisor may also increase or reduce the Portfolio’s exposure to an eligible company, or exclude a company, based on shorter-term considerations, such as a company’s price momentum. In addition, the Advisor seeks to reduce trading costs using a flexible trading approach that looks for opportunities to participate in the available market liquidity, while managing turnover and explicit transaction costs.

 

The Portfolio may purchase or sell futures contracts and options on futures contracts for U.S. equity securities and indices to increase or decrease equity market exposure based on actual or expected cash inflows to or outflows from the Portfolio.

 

The Portfolio may lend its portfolio securities to generate additional income.

 

The Portfolio is an actively managed exchange traded fund and does not seek to replicate the performance of a specific index and may have a higher degree of portfolio turnover than such index funds.
Risk [Heading] rr_RiskHeading Principal Risks
Risk Narrative [Text Block] rr_RiskNarrativeTextBlock

Because the value of your investment in the US Large Cap Value ETF will fluctuate, there is the risk that you will lose money. An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The following is a description of principal risks of investing in the Portfolio.

 

Equity Market Risk: Even a long-term investment approach cannot guarantee a profit. Economic, market, political, and issuer-specific conditions and events will cause the value of equity securities, and the portfolio that owns them, to rise or fall. Stock markets tend to move in cycles, with periods of rising prices and periods of falling prices.

 

Value Investment Risk: Value stocks may perform differently from the market as a whole and an investment strategy purchasing these securities may cause the Portfolio to at times underperform equity funds that use other investment strategies. Value stocks can react differently to political, economic, and industry developments than the market as a whole and other types of stocks. Value stocks also may underperform the market for long periods of time.

 

Profitability Investment Risk: High relative profitability stocks may perform differently from the market as a whole and an investment strategy purchasing these securities may cause the Portfolio to at times underperform equity funds that use other investment strategies.

 

Market Trading Risk: Active trading markets for the Portfolio’s shares may not be developed or maintained by market makers or authorized participants. Authorized participants are not obligated to make a market in the Portfolio’s shares or to submit purchase or redemption orders for creation units. Trading in shares on an exchange may be halted in certain circumstances. There can be no assurance that the requirements of the listing exchange necessary to maintain the listing of the Portfolio will continue to be met.

 

Premium/Discount Risk: The net asset value (“NAV”) of the Portfolio and the value of your investment may fluctuate. Disruptions to creations and redemptions or the market price of the Portfolio’s holdings, the existence of extreme market volatility or potential lack of an active trading market for shares may widen bid-ask spreads and result in shares trading at a significant premium or discount to NAV. If a shareholder purchases shares at a time when the market price is at a premium to the NAV or sells shares at a time when the market price is at a discount to the NAV, the shareholder may sustain losses.

 

Derivatives Risk: Derivatives are instruments, such as futures contracts and options thereon, whose value is derived from that of other assets, rates or indices. The use of derivatives for non-hedging purposes may be considered to carry more risk than other types of investments. When the Portfolio uses derivatives, the Portfolio will be directly exposed to the risks of those derivatives. Derivative instruments are subject to a number of risks including counterparty, liquidity, interest rate, market, credit and management risks, as well as the risk of improper valuation. Changes in the value of a derivative may not correlate perfectly with the underlying asset, rate or index, and the Portfolio could lose more than the principal amount invested.

 

Securities Lending Risk: Securities lending involves the risk that the borrower may fail to return the securities in a timely manner or at all. As a result, the Portfolio may lose money and there may be a delay in recovering the loaned securities. The Portfolio could also lose money if it does not recover the securities and/or the value of the collateral falls, including the value of investments made with cash collateral. Securities lending also may have certain adverse tax consequences.

 

Operational Risk: Operational risks include human error, changes in personnel, system changes, faults in communication, and failures in systems, technology, or processes. Various operational events or circumstances are outside the Advisor’s control, including instances at third parties. The Portfolio and the Advisor seek to reduce these operational risks through controls and procedures. However, these measures do not address every possible risk and may be inadequate to address these risks.

Cyber Security Risk: The Portfolio’s and its service providers’ use of internet, technology and information systems may expose the Portfolio to potential risks linked to cyber security breaches of those technological or information systems. Cyber security breaches, amongst other things, could allow an unauthorized party to gain access to proprietary information, customer data, or fund assets, or cause the Portfolio and/or its service providers to suffer data corruption or lose operational functionality.

 

Large Shareholder Risk: Certain shareholders, including other funds or accounts advised by the Advisor, may from time to time own a substantial amount of the Portfolio’s shares. In addition, a third party investor, the Advisor, an authorized participant, a lead market maker, or another entity may invest in the Portfolio and hold its investment for a limited period of time solely to facilitate commencement of the Portfolio or to facilitate the Portfolio achieving a specified size or scale. There can be no assurance that any large shareholder would not redeem its investment, that the size of the Portfolio would be maintained at such levels or that the Portfolio would continue to meet applicable listing requirements. Redemptions by large shareholders could have a significant negative impact on the Portfolio. In addition, transactions by large shareholders may account for a large percentage of the trading volume on the listing exchange and may, therefore, have a material upward or downward effect on the market price of the shares.
Risk Lose Money [Text] rr_RiskLoseMoney Because the value of your investment in the US Large Cap Value ETF will fluctuate, there is the risk that you will lose money.
RIsk Not Insured [Text] rr_RiskNotInsured An investment in the Portfolio is not a deposit of a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
Bar Chart and Performance Table [Heading] rr_BarChartAndPerformanceTableHeading Performance
Performance Narrative [Text Block] rr_PerformanceNarrativeTextBlock

Performance information is not available for the US Large Cap Value ETF because it has not yet commenced operations. Updated performance information for the Portfolio can be obtained in the future by visiting https://us.dimensional.com/etfs.
Performance One Year or Less [Text] rr_PerformanceOneYearOrLess Performance information is not available for the US Large Cap Value ETF because it has not yet commenced operations.
Performance Availability Website Address [Text] rr_PerformanceAvailabilityWebSiteAddress https://us.dimensional.com/etfs
Dimensional US Large Cap Value ETF | Dimensional US Large Cap Value ETF  
Risk/Return: rr_RiskReturnAbstract  
Management Fee rr_ManagementFeesOverAssets 0.19%
Other Expenses rr_OtherExpensesOverAssets 0.04% [1]
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.23%
Fee Waiver and/or Expense Reimbursement rr_FeeWaiverOrReimbursementOverAssets 0.01% [2]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement rr_NetExpensesOverAssets 0.22%
Expense Example, with Redemption, 1 Year rr_ExpenseExampleYear01 $ 23
Expense Example, with Redemption, 3 Years rr_ExpenseExampleYear03 73
Expense Example, No Redemption, 1 Year rr_ExpenseExampleNoRedemptionYear01 23
Expense Example, No Redemption, 3 Years rr_ExpenseExampleNoRedemptionYear03 $ 73
[1] The Portfolio is a new portfolio, so the “Other Expenses” shown are based on anticipated fees and expenses for the first full fiscal year.
[2] Dimensional Fund Advisors LP (the “Advisor”) has agreed to waive certain fees and in certain instances, assume certain expenses of the Portfolio. The Fee Waiver and Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2024, and may only be terminated by the Portfolio’s Board of Trustees prior to that date. The Advisor retains the right to seek reimbursement for any fees previously waived and/or expenses previously assumed up to thirty-six months after such fee waiver and/or expense assumption.