Fees and Expenses of the Portfolio

Shareholder Fees Caption [Optional Text]

Shareholder Fees (fees paid directly from your investment)

Annual Fund Operating Expenses - Prospectus Summary - U.S. LARGE COMPANY PORTFOLIO	Institutional Class
Management Fees (as a percentage of Assets)	0.06%
Other Expenses (as a percentage of Assets):	0.03%
Expenses (as a percentage of Assets)	0.09%
Fee Waiver or Reimbursement	(0.01%)	^[1]
Net Expenses (as a percentage of Assets)	0.08%

[1]

Dimensional Fund Advisors LP (the “Advisor”) has agreed to waive certain fees of the Portfolio. The Fee Waiver 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 up to thirty-six months after such fee waiver.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - Prospectus Summary - U.S. LARGE COMPANY PORTFOLIO	Institutional Class USD ($)
Expense Example, No Redemption, 1 Year	$ 8
Expense Example, No Redemption, 3 Years	28
Expense Example, No Redemption, 5 Years	50
Expense Example, No Redemption, 10 Years	$ 114

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 most recent fiscal year, the Portfolio's portfolio turnover rate was 5% 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 - Prospectus Summary - U.S. LARGE COMPANY PORTFOLIO	ETF Class
Management Fees (as a percentage of Assets)	0.06%
Other Expenses (as a percentage of Assets):	0.05%	^[1]
Expenses (as a percentage of Assets)	0.11%
Fee Waiver or Reimbursement	(0.03%)	^[2]
Net Expenses (as a percentage of Assets)	0.08%

[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 - Prospectus Summary - U.S. LARGE COMPANY PORTFOLIO	ETF Class USD ($)
Expense Example, No Redemption, 1 Year	$ 8
Expense Example, No Redemption, 3 Years	32
Expense Example, No Redemption, 5 Years	59
Expense Example, No Redemption, 10 Years	$ 138

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 most recent fiscal year, the Portfolio's portfolio turnover rate was 5% 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 - Prospectus Summary - DFA INTERNATIONAL VALUE PORTFOLIO	Institutional Class	^[1]
Management Fees (as a percentage of Assets)	0.45%
Other Expenses (as a percentage of Assets):	0.03%
Expenses (as a percentage of Assets)	0.48%
Fee Waiver or Reimbursement	(0.20%)
Net Expenses (as a percentage of Assets)	0.28%

[1]

The “Management Fee” includes an investment management fee payable by the Feeder Portfolio and an investment management fee payable by the Master Fund. For any period when the Feeder Portfolio is invested in other funds managed by Dimensional Fund Advisors LP (the “Advisor”) (collectively, “Underlying Funds”), the Advisor has contractually agreed to permanently waive the Feeder Portfolio’s direct investment management fee to the extent necessary to offset the proportionate share of any Underlying Fund’s investment management fee paid by the Feeder Portfolio through its investment in such Underlying Fund. The amounts set forth under “Other Expenses” and “Total Annual Fund Operating Expenses” reflect the direct expenses of the Feeder Portfolio and the indirect expenses of the Feeder Portfolio’s portion of the expenses of the Master Fund.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing in other funds. The Example reflects the aggregate annual operating expenses of the Portfolio and its portion of the expenses of the Series. 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. 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 - Prospectus Summary - DFA INTERNATIONAL VALUE PORTFOLIO	Institutional Class USD ($)
Expense Example, No Redemption, 1 Year	$ 29
Expense Example, No Redemption, 3 Years	90
Expense Example, No Redemption, 5 Years	157
Expense Example, No Redemption, 10 Years	$ 356

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 most recent fiscal year, the Series' 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 - Prospectus Summary - DFA TWO-YEAR FIXED INCOME PORTFOLIO	Institutional Class
Management Fees (as a percentage of Assets)	0.14%
Other Expenses (as a percentage of Assets):	0.08%
Expenses (as a percentage of Assets)	0.22%
Fee Waiver or Reimbursement	(0.01%)	^[1]
Net Expenses (as a percentage of Assets)	0.21%

[1]

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/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 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - Prospectus Summary - DFA TWO-YEAR FIXED INCOME PORTFOLIO	Institutional Class USD ($)
Expense Example, No Redemption, 1 Year	$ 22
Expense Example, No Redemption, 3 Years	70
Expense Example, No Redemption, 5 Years	123
Expense Example, No Redemption, 10 Years	$ 279

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 most recent fiscal year, the Portfolio's portfolio turnover rate was 69% 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 - Prospectus Summary - DFA TWO-YEAR GOVERNMENT PORTFOLIO	Institutional Class
Management Fees (as a percentage of Assets)	0.10%
Other Expenses (as a percentage of Assets):	0.06%
Expenses (as a percentage of Assets)	0.17%
Fee Waiver or Reimbursement	(0.01%)	^[1]

[1]

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/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 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. 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 - Prospectus Summary - DFA TWO-YEAR GOVERNMENT PORTFOLIO	Institutional Class USD ($)
Expense Example, No Redemption, 1 Year	$ 17
Expense Example, No Redemption, 3 Years	55
Expense Example, No Redemption, 5 Years	96
Expense Example, No Redemption, 10 Years	$ 217

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 most recent fiscal year, the Portfolio's portfolio turnover rate was 66% 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 - Prospectus Summary - GLOBAL EQUITY PORTFOLIO	Institutional Class
Management Fees (as a percentage of Assets)	0.20%
Other Expenses (as a percentage of Assets):	0.02%
Acquired Fund Fees and Expenses	0.20%
Expenses (as a percentage of Assets)	0.42%
Fee Waiver or Reimbursement	(0.17%)	^[1]
Net Expenses (as a percentage of Assets)	0.25%

[1]

Dimensional Fund Advisors LP (the “Advisor”) has agreed to waive certain fees of the Portfolio. The Fee Waiver 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 up to thirty-six months after such fee waiver.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - Prospectus Summary - GLOBAL EQUITY PORTFOLIO	Institutional Class USD ($)
Expense Example, No Redemption, 1 Year	$ 26
Expense Example, No Redemption, 3 Years	118
Expense Example, No Redemption, 5 Years	218
Expense Example, No Redemption, 10 Years	$ 513

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. The Portfolio does not pay transaction costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the “Underlying Funds”); however, the Underlying Funds pay transaction costs when buying and selling securities for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Portfolio’s performance. During the most recent fiscal year, 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 - Prospectus Summary - GLOBAL ALLOCATION 60/40 PORTFOLIO	Institutional Class
Management Fees (as a percentage of Assets)	0.19%
Other Expenses (as a percentage of Assets):	0.02%
Acquired Fund Fees and Expenses	0.19%
Expenses (as a percentage of Assets)	0.40%
Fee Waiver or Reimbursement	(0.16%)	^[1]
Net Expenses (as a percentage of Assets)	0.24%

[1]

Dimensional Fund Advisors LP (the “Advisor”) has agreed to waive certain fees of the Portfolio. The Fee Waiver 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 up to thirty-six months after such fee waiver.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - Prospectus Summary - GLOBAL ALLOCATION 60/40 PORTFOLIO	Institutional Class USD ($)
Expense Example, No Redemption, 1 Year	$ 25
Expense Example, No Redemption, 3 Years	112
Expense Example, No Redemption, 5 Years	208
Expense Example, No Redemption, 10 Years	$ 490

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. The Portfolio does not pay transaction costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the “Underlying Funds”); however, the Underlying Funds pay transaction costs when buying and selling securities for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Portfolio’s performance. During the most recent fiscal year, 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 - Prospectus Summary - GLOBAL ALLOCATION 25/75 PORTFOLIO	Institutional Class
Management Fees (as a percentage of Assets)	0.18%
Other Expenses (as a percentage of Assets):	0.04%
Acquired Fund Fees and Expenses	0.17%
Expenses (as a percentage of Assets)	0.39%
Fee Waiver or Reimbursement	(0.15%)	^[1]
Net Expenses (as a percentage of Assets)	0.24%

[1]

Dimensional Fund Advisors LP (the “Advisor”) has agreed to waive certain fees of the Portfolio. The Fee Waiver 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 up to thirty-six months after such fee waiver.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio 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:

Expense Example, No Redemption [Table]

Expense Example, No Redemption - Prospectus Summary - GLOBAL ALLOCATION 25/75 PORTFOLIO	Institutional Class USD ($)
Expense Example, No Redemption, 1 Year	$ 25
Expense Example, No Redemption, 3 Years	110
Expense Example, No Redemption, 5 Years	204
Expense Example, No Redemption, 10 Years	$ 478

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. The Portfolio does not pay transaction costs when buying and selling shares of other funds managed by Dimensional Fund Advisors LP (the “Underlying Funds”); however, the Underlying Funds pay transaction costs when buying and selling securities for their portfolio. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Portfolio’s performance. During the most recent fiscal year, the Portfolio's portfolio turnover rate was 10% 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 - Prospectus Summary - U.S. LARGE CAP VALUE PORTFOLIO III	Institutional Class	^[1]
Management Fees (as a percentage of Assets)	0.21%
Other Expenses (as a percentage of Assets):	0.03%
Expenses (as a percentage of Assets)	0.24%
Fee Waiver or Reimbursement	(0.10%)
Net Expenses (as a percentage of Assets)	0.14%

[1]

The “Management Fee” includes an investment management fee payable by the Feeder Portfolio and an investment management fee payable by the Master Fund. For any period when the Feeder Portfolio is invested in other funds managed by Dimensional Fund Advisors LP (the “Advisor”) (collectively, “Underlying Funds”), the Advisor has contractually agreed to permanently waive the Feeder Portfolio’s direct investment management fee to the extent necessary to offset the proportionate share of any Underlying Fund’s investment management fee paid by the Feeder Portfolio through its investment in such Underlying Fund. The amounts set forth under “Other Expenses” and “Total Annual Fund Operating Expenses” reflect the direct expenses of the Feeder Portfolio and the indirect expenses of the Feeder Portfolio’s portion of the expenses of the Master Fund.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing in other funds. The Example reflects the aggregate annual operating expenses of the Portfolio and its portion of the expenses of the Series. 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. 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 - Prospectus Summary - U.S. LARGE CAP VALUE PORTFOLIO III	Institutional Class USD ($)
Expense Example, No Redemption, 1 Year	$ 14
Expense Example, No Redemption, 3 Years	45
Expense Example, No Redemption, 5 Years	79
Expense Example, No Redemption, 10 Years	$ 179

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 most recent fiscal year, the Series' 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 - Prospectus Summary - DFA INTERNATIONAL VALUE PORTFOLIO III	Institutional Class	^[1]
Management Fees (as a percentage of Assets)	0.41%
Other Expenses (as a percentage of Assets):	0.03%
Expenses (as a percentage of Assets)	0.44%
Fee Waiver or Reimbursement	(0.20%)
Net Expenses (as a percentage of Assets)	0.24%

[1]

The “Management Fee” includes an investment management fee payable by the Feeder Portfolio and an investment management fee payable by the Master Fund. For any period when the Feeder Portfolio is invested in other funds managed by Dimensional Fund Advisors LP (the “Advisor”) (collectively, “Underlying Funds”), the Advisor has contractually agreed to permanently waive the Feeder Portfolio’s direct investment management fee to the extent necessary to offset the proportionate share of any Underlying Fund’s investment management fee paid by the Feeder Portfolio through its investment in such Underlying Fund. The amounts set forth under “Other Expenses” and “Total Annual Fund Operating Expenses” reflect the direct expenses of the Feeder Portfolio and the indirect expenses of the Feeder Portfolio’s portion of the expenses of the Master Fund.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing in other funds. The Example reflects the aggregate annual operating expenses of the Portfolio and its portion of the expenses of the Series. 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. 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 - Prospectus Summary - DFA INTERNATIONAL VALUE PORTFOLIO III	Institutional Class USD ($)
Expense Example, No Redemption, 1 Year	$ 25
Expense Example, No Redemption, 3 Years	77
Expense Example, No Redemption, 5 Years	135
Expense Example, No Redemption, 10 Years	$ 306

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 most recent fiscal year, the Series' 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 - Prospectus Summary - EMERGING MARKETS PORTFOLIO II	Institutional Class	^[1]
Management Fees (as a percentage of Assets)	0.35%
Other Expenses (as a percentage of Assets):	0.10%
Expenses (as a percentage of Assets)	0.45%
Fee Waiver or Reimbursement	(0.10%)
Net Expenses (as a percentage of Assets)	0.35%

[1]

The “Management Fee” includes an investment management fee payable by the Feeder Portfolio and an investment management fee payable by the Master Fund. For any period when the Feeder Portfolio is invested in other funds managed by Dimensional Fund Advisors LP (the “Advisor”) (collectively, “Underlying Funds”), the Advisor has contractually agreed to permanently waive the Feeder Portfolio’s direct investment management fee to the extent necessary to offset the proportionate share of any Underlying Fund’s investment management fee paid by the Feeder Portfolio through its investment in such Underlying Fund. The amounts set forth under “Other Expenses” and “Total Annual Fund Operating Expenses” reflect the direct expenses of the Feeder Portfolio and the indirect expenses of the Feeder Portfolio’s portion of the expenses of the Master Fund.

Expense Example Narrative [Text Block]

This Example is meant to help you compare the cost of investing in the Portfolio with the cost of investing in other funds. The Example reflects the aggregate annual operating expenses of the Portfolio and its portion of the expenses of the Series. 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. 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 - Prospectus Summary - EMERGING MARKETS PORTFOLIO II	Institutional Class USD ($)
Expense Example, No Redemption, 1 Year	$ 36
Expense Example, No Redemption, 3 Years	113
Expense Example, No Redemption, 5 Years	197
Expense Example, No Redemption, 10 Years	$ 443

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 most recent fiscal year, the Series' portfolio turnover rate was 10% of the average value of its investment portfolio.