Fees and Expenses of the Portfolio

Shareholder Fees Caption [Optional Text]

Shareholder Fees (fees paid directly from your investment)

Annual Fund Operating Expenses - U.S. Large Cap Equity Portfolio	ETF Class
Management Fees (as a percentage of Assets)	0.10%
Other Expenses (as a percentage of Assets):	0.06%	^[1]
Expenses (as a percentage of Assets)	0.16%
Fee Waiver or Reimbursement	(0.02%)	^[2]
Net Expenses (as a percentage of Assets)	0.14%

[1]

The ETF Class shares of the Portfolio are new, so the “Other Expenses" shown for the class 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 ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund’s Board of Directors prior to that date. Under certain circumstances, 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.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF Class shares 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's ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - U.S. Large Cap Equity Portfolio	ETF Class USD ($)
Expense Example, No Redemption, 1 Year	$ 14
Expense Example, No Redemption, 3 Years	50
Expense Example, No Redemption, 5 Years	88
Expense Example, No Redemption, 10 Years	$ 203

Portfolio Turnover [Text Block]

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in

the Example, affect the Portfolio’s performance. During the fiscal year ended October 31, 2024, the Portfolio's portfolio turnover rate was 12% of the average value of its investment portfolio.

Expense Heading [Optional Text]

Fees and Expenses of the Portfolio

Shareholder Fees Caption [Optional Text]

Shareholder Fees (fees paid directly from your investment)

Annual Fund Operating Expenses [Table]

Annual Fund Operating Expenses - U.S. SMALL CAP VALUE PORTFOLIO	ETF Class
Management Fees (as a percentage of Assets)	0.28%
Other Expenses (as a percentage of Assets):	0.05%	^[1]
Expenses (as a percentage of Assets)	0.33%
Fee Waiver or Reimbursement	(0.02%)	^[2]
Net Expenses (as a percentage of Assets)	0.31%

[1]

The ETF Class shares of the Portfolio are new, so the “Other Expenses" shown for the class 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 ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund’s Board of Directors prior to that date. Under certain circumstances, 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.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF Class shares 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's ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - U.S. SMALL CAP VALUE PORTFOLIO	ETF Class USD ($)
Expense Example, No Redemption, 1 Year	$ 32
Expense Example, No Redemption, 3 Years	104
Expense Example, No Redemption, 5 Years	183
Expense Example, No Redemption, 10 Years	$ 416

Portfolio Turnover [Text Block]

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in

the Example, affect the Portfolio’s performance. During the fiscal year ended October 31, 2024, the Portfolio's portfolio turnover rate was 12% of the average value of its investment portfolio.

Expense Heading [Optional Text]

Fees and Expenses of the Portfolio

Shareholder Fees Caption [Optional Text]

Shareholder Fees (fees paid directly from your investment)

Annual Fund Operating Expenses [Table]

Annual Fund Operating Expenses - U.S. Targeted Value Portfolio	ETF Class
Management Fees (as a percentage of Assets)	0.27%
Other Expenses (as a percentage of Assets):	0.06%	^[1]
Expenses (as a percentage of Assets)	0.33%
Fee Waiver or Reimbursement	(0.04%)	^[2]
Net Expenses (as a percentage of Assets)	0.29%

[1]

The ETF Class shares of the Portfolio are new, so the “Other Expenses" shown for the class 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 ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund’s Board of Directors prior to that date. Under certain circumstances, 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.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF Class shares 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's ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - U.S. Targeted Value Portfolio	ETF Class USD ($)
Expense Example, No Redemption, 1 Year	$ 30
Expense Example, No Redemption, 3 Years	102
Expense Example, No Redemption, 5 Years	181
Expense Example, No Redemption, 10 Years	$ 414

Portfolio Turnover [Text Block]

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in

the Example, affect the Portfolio’s performance. During the fiscal year ended October 31, 2024, the portfolio turnover rate was 7% of the average value of its investment portfolio.

Expense Heading [Optional Text]

Fees and Expenses of the Portfolio

Shareholder Fees Caption [Optional Text]

Shareholder Fees (fees paid directly from your investment)

Annual Fund Operating Expenses [Table]

Annual Fund Operating Expenses - U.S. CORE EQUITY 1 PORTFOLIO	ETF Class
Management Fees (as a percentage of Assets)	0.12%
Other Expenses (as a percentage of Assets):	0.05%	^[1]
Expenses (as a percentage of Assets)	0.17%
Fee Waiver or Reimbursement	(0.02%)	^[2]
Net Expenses (as a percentage of Assets)	0.15%

[1]

The ETF Class shares of the Portfolio are new, so the “Other Expenses" shown for the class 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 ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund’s Board of Directors prior to that date. Under certain circumstances, 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.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF Class shares 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's ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - U.S. CORE EQUITY 1 PORTFOLIO	ETF Class USD ($)
Expense Example, No Redemption, 1 Year	$ 15
Expense Example, No Redemption, 3 Years	53
Expense Example, No Redemption, 5 Years	94
Expense Example, No Redemption, 10 Years	$ 215

Portfolio Turnover [Text Block]

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in

the Example, affect the Portfolio’s performance. During the fiscal year ended October 31, 2024, the portfolio turnover rate was 6% of the average value of its investment portfolio.

Expense Heading [Optional Text]

Fees and Expenses of the Portfolio

Shareholder Fees Caption [Optional Text]

Shareholder Fees (fees paid directly from your investment)

Annual Fund Operating Expenses [Table]

Annual Fund Operating Expenses - U.S. CORE EQUITY 2 PORTFOLIO	ETF Class
Management Fees (as a percentage of Assets)	0.16%
Other Expenses (as a percentage of Assets):	0.05%	^[1]
Expenses (as a percentage of Assets)	0.21%
Fee Waiver or Reimbursement	(0.03%)	^[2]
Net Expenses (as a percentage of Assets)	0.18%

[1]

The ETF Class shares of the Portfolio are new, so the “Other Expenses" shown for the class 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 ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund’s Board of Directors prior to that date. Under certain circumstances, 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.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF Class shares 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's ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - U.S. CORE EQUITY 2 PORTFOLIO	ETF Class USD ($)
Expense Example, No Redemption, 1 Year	$ 18
Expense Example, No Redemption, 3 Years	65
Expense Example, No Redemption, 5 Years	115
Expense Example, No Redemption, 10 Years	$ 265

Portfolio Turnover [Text Block]

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in

the Example, affect the Portfolio’s performance. During the fiscal year ended October 31, 2024, the Portfolio's portfolio turnover rate was 8% of the average value of its investment portfolio.

Expense Heading [Optional Text]

Fees and Expenses of the Portfolio

Shareholder Fees Caption [Optional Text]

Shareholder Fees (fees paid directly from your investment)

Annual Fund Operating Expenses [Table]

Annual Fund Operating Expenses - U.S. VECTOR EQUITY PORTFOLIO	ETF Class
Management Fees (as a percentage of Assets)	0.20%
Other Expenses (as a percentage of Assets):	0.06%	^[1]
Expenses (as a percentage of Assets)	0.26%
Fee Waiver or Reimbursement	(0.02%)	^[2]
Net Expenses (as a percentage of Assets)	0.24%

[1]

The ETF Class shares of the Portfolio are new, so the “Other Expenses" shown for the class 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 ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund’s Board of Directors prior to that date. Under certain circumstances, 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.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF Class shares 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's ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - U.S. VECTOR EQUITY PORTFOLIO	ETF Class USD ($)
Expense Example, No Redemption, 1 Year	$ 25
Expense Example, No Redemption, 3 Years	82
Expense Example, No Redemption, 5 Years	144
Expense Example, No Redemption, 10 Years	$ 329

Portfolio Turnover [Text Block]

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in

the Example, affect the Portfolio’s performance. During the fiscal year ended October 31, 2024, the Portfolio's portfolio turnover rate was 11% of the average value of its investment portfolio.

Expense Heading [Optional Text]

Fees and Expenses of the Portfolio

Shareholder Fees Caption [Optional Text]

Shareholder Fees (fees paid directly from your investment)

Annual Fund Operating Expenses [Table]

Annual Fund Operating Expenses - U.S. SMALL CAP PORTFOLIO	ETF Class
Management Fees (as a percentage of Assets)	0.25%
Other Expenses (as a percentage of Assets):	0.06%	^[1]
Expenses (as a percentage of Assets)	0.31%
Fee Waiver or Reimbursement	(0.04%)	^[2]
Net Expenses (as a percentage of Assets)	0.27%

[1]

The ETF Class shares of the Portfolio are new, so the “Other Expenses" shown for the class 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 ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund’s Board of Directors prior to that date. Under certain circumstances, 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.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF Class shares 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's ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - U.S. SMALL CAP PORTFOLIO	ETF Class USD ($)
Expense Example, No Redemption, 1 Year	$ 28
Expense Example, No Redemption, 3 Years	96
Expense Example, No Redemption, 5 Years	170
Expense Example, No Redemption, 10 Years	$ 389

Portfolio Turnover [Text Block]

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in

the Example, affect the Portfolio’s performance. During the fiscal year ended October 31, 2024, the Portfolio's portfolio turnover rate was 6% of the average value of its investment portfolio.

Expense Heading [Optional Text]

Fees and Expenses of the Portfolio

Shareholder Fees Caption [Optional Text]

Shareholder Fees (fees paid directly from your investment)

Annual Fund Operating Expenses [Table]

Annual Fund Operating Expenses - U.S. MICRO CAP PORTFOLIO	ETF Class
Management Fees (as a percentage of Assets)	0.38%
Other Expenses (as a percentage of Assets):	0.05%	^[1]
Expenses (as a percentage of Assets)	0.43%
Fee Waiver or Reimbursement	(0.02%)	^[2]
Net Expenses (as a percentage of Assets)	0.41%

[1]

The ETF Class shares of the Portfolio are new, so the “Other Expenses" shown for the class 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 ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund’s Board of Directors prior to that date. Under certain circumstances, 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.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF Class shares 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's ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - U.S. MICRO CAP PORTFOLIO	ETF Class USD ($)
Expense Example, No Redemption, 1 Year	$ 42
Expense Example, No Redemption, 3 Years	136
Expense Example, No Redemption, 5 Years	239
Expense Example, No Redemption, 10 Years	$ 540

Portfolio Turnover [Text Block]

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in

the Example, affect the Portfolio’s performance. During the fiscal year ended October 31, 2024, the Portfolio's portfolio turnover rate was 9% of the average value of its investment portfolio.

Expense Heading [Optional Text]

Fees and Expenses of the Portfolio

Shareholder Fees Caption [Optional Text]

Shareholder Fees (fees paid directly from your investment)

Annual Fund Operating Expenses [Table]

Annual Fund Operating Expenses - U.S. High Relative Profitability Portfolio	ETF Class
Management Fees (as a percentage of Assets)	0.19%
Other Expenses (as a percentage of Assets):	0.05%	^[1]
Expenses (as a percentage of Assets)	0.24%
Fee Waiver or Reimbursement	(0.02%)	^[2]
Net Expenses (as a percentage of Assets)	0.22%

[1]

The ETF Class shares of the Portfolio are new, so the “Other Expenses" shown for the class 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 ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund’s Board of Directors prior to that date. Under certain circumstances, 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.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF Class shares 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's ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - U.S. High Relative Profitability Portfolio	ETF Class USD ($)
Expense Example, No Redemption, 1 Year	$ 23
Expense Example, No Redemption, 3 Years	75
Expense Example, No Redemption, 5 Years	133
Expense Example, No Redemption, 10 Years	$ 304

Portfolio Turnover [Text Block]

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in

the Example, affect the Portfolio’s performance. During the fiscal year ended October 31, 2024, the Portfolio's portfolio turnover rate was 13% of the average value of its investment portfolio.

Expense Heading [Optional Text]

Fees and Expenses of the Portfolio

Shareholder Fees Caption [Optional Text]

Shareholder Fees (fees paid directly from your investment)

Annual Fund Operating Expenses [Table]

Annual Fund Operating Expenses - DFA REAL ESTATE SECURITIES PORTFOLIO	ETF Class
Management Fees (as a percentage of Assets)	0.17%
Other Expenses (as a percentage of Assets):	0.05%	^[1]
Expenses (as a percentage of Assets)	0.22%
Fee Waiver or Reimbursement	(0.04%)	^[2]
Net Expenses (as a percentage of Assets)	0.18%

[1]

The ETF Class shares of the Portfolio are new, so the “Other Expenses" shown for the class 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 ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund’s Board of Directors prior to that date. Under certain circumstances, 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.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF Class shares 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's ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - DFA REAL ESTATE SECURITIES PORTFOLIO	ETF Class USD ($)
Expense Example, No Redemption, 1 Year	$ 18
Expense Example, No Redemption, 3 Years	67
Expense Example, No Redemption, 5 Years	120
Expense Example, No Redemption, 10 Years	$ 276

Portfolio Turnover [Text Block]

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in

the Example, affect the Portfolio’s performance. During the fiscal year ended October 31, 2024, the Portfolio's portfolio turnover rate was 4% of the average value of its investment portfolio.

Expense Heading [Optional Text]

Fees and Expenses of the Portfolio

Shareholder Fees Caption [Optional Text]

Shareholder Fees (fees paid directly from your investment)

Annual Fund Operating Expenses [Table]

Annual Fund Operating Expenses - U.S. Large Cap Growth Portfolio	ETF Class
Management Fees (as a percentage of Assets)	0.15%
Other Expenses (as a percentage of Assets):	0.06%	^[1]
Expenses (as a percentage of Assets)	0.21%
Fee Waiver or Reimbursement	(0.03%)	^[2]
Net Expenses (as a percentage of Assets)	0.18%

[1]

The ETF Class shares of the Portfolio are new, so the “Other Expenses" shown for the class 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 ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund’s Board of Directors prior to that date. Under certain circumstances, 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.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF Class shares 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's ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - U.S. Large Cap Growth Portfolio	ETF Class USD ($)
Expense Example, No Redemption, 1 Year	$ 18
Expense Example, No Redemption, 3 Years	65
Expense Example, No Redemption, 5 Years	115
Expense Example, No Redemption, 10 Years	$ 265

Portfolio Turnover [Text Block]

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in

the Example, affect the Portfolio’s performance. During the fiscal year ended October 31, 2024, the Portfolio's portfolio turnover rate was 11% of the average value of its investment portfolio.

Expense Heading [Optional Text]

Fees and Expenses of the Portfolio

Shareholder Fees Caption [Optional Text]

Shareholder Fees (fees paid directly from your investment)

Annual Fund Operating Expenses [Table]

Annual Fund Operating Expenses - U.S. Small Cap Growth Portfolio	ETF Class
Management Fees (as a percentage of Assets)	0.28%
Other Expenses (as a percentage of Assets):	0.05%	^[1]
Expenses (as a percentage of Assets)	0.33%
Fee Waiver or Reimbursement	(0.01%)	^[2]
Net Expenses (as a percentage of Assets)	0.32%

[1]

The ETF Class shares of the Portfolio are new, so the “Other Expenses" shown for the class 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 ETF Class shares of the Portfolio. The Fee Waiver and/or Expense Assumption Agreement for the Portfolio will remain in effect through February 28, 2027, and may only be terminated by the Fund’s Board of Directors prior to that date. Under certain circumstances, 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.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio's ETF Class shares with the cost of investing in other funds. The Example assumes that you invest $10,000 in the Portfolio's ETF Class shares 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's ETF Class shares reflect the net expenses of the Portfolio's ETF Class shares 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - U.S. Small Cap Growth Portfolio	ETF Class USD ($)
Expense Example, No Redemption, 1 Year	$ 33
Expense Example, No Redemption, 3 Years	105
Expense Example, No Redemption, 5 Years	184
Expense Example, No Redemption, 10 Years	$ 417

Portfolio Turnover [Text Block]

A fund generally pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover may indicate higher transaction costs and may result in higher taxes when fund shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in

the Example, affect the Portfolio’s performance. During the fiscal year ended October 31, 2024, the Portfolio's portfolio turnover rate was 16% of the average value of its investment portfolio.