Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

U.S. Large Cap Equity Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - U.S. Large Cap Equity Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 1000® Index \| Average Annual Return, Label [Optional Text]	Russell 1000® Index
Russell 1000® Index \| Average Annual Return, Percent		17.37%	13.59%	14.59%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		16.77%	13.62%	14.35%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		16.47%	12.77%	13.68%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		10.10%	10.70%	11.89%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

21.60%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2020

Lowest Quarterly Return

(39.02%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

U.S. Targeted Value Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - U.S. Targeted Value Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 2000® Value Index \| Average Annual Return, Label [Optional Text]	Russell 2000® Value Index
Russell 2000® Value Index \| Average Annual Return, Percent		12.59%	8.88%	9.27%
Russell 3000® Index \| Average Annual Return, Label [Optional Text]	Russell 3000® Index
Russell 3000® Index \| Average Annual Return, Percent		17.15%	13.15%	14.29%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		9.55%	13.60%	10.81%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		9.08%	12.59%	9.75%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		5.94%	10.70%	8.60%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

32.77%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(24.35%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

U.S. Core Equity 2 Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - U.S. CORE EQUITY 2 PORTFOLIO		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 3000® Index \| Average Annual Return, Label [Optional Text]	Russell 3000® Index
Russell 3000® Index \| Average Annual Return, Percent		17.15%	13.15%	14.29%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		15.99%	13.38%	13.39%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		15.67%	12.67%	12.69%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		9.66%	10.55%	11.00%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

22.39%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2020

Lowest Quarterly Return

(31.99%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

U.S. Small Cap Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - U.S. SMALL CAP PORTFOLIO		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 2000® Index \| Average Annual Return, Label [Optional Text]	Russell 2000® Index
Russell 2000® Index \| Average Annual Return, Percent		12.81%	6.09%	9.62%
Russell 3000® Index \| Average Annual Return, Label [Optional Text]	Russell 3000® Index
Russell 3000® Index \| Average Annual Return, Percent		17.15%	13.15%	14.29%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		8.07%	9.87%	10.00%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		7.78%	9.03%	9.10%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		4.96%	7.68%	7.97%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

28.70%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns

depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2020

Lowest Quarterly Return

(34.75%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

U.S. High Relative Profitability Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - U.S. High Relative Profitability Portfolio		12 Months Ended	60 Months Ended	104 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 1000® Index \| Average Annual Return, Label [Optional Text]	Russell 1000® Index
Russell 1000® Index \| Average Annual Return, Percent		17.37%	13.59%	14.55%	^[1]
Russell 1000® Index \| Performance Inception Date				May 16, 2017
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		12.81%	12.60%	14.48%	^[1]
Institutional Class \| Performance Inception Date				May 16, 2017
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		12.51%	12.03%	13.97%	^[1]
Institutional Class \| After Taxes on Distributions \| Performance Inception Date				May 16, 2017
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		7.77%	9.95%	11.95%	^[1]
Institutional Class \| After Taxes on Distributions and Sales \| Performance Inception Date				May 16, 2017

[1]	Since inception May 16, 2017.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

19.66%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2023

Lowest Quarterly Return

(23.06%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

U.S. Large Cap Growth Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - U.S. Large Cap Growth Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 1000® Growth Index \| Average Annual Return, Label [Optional Text]	Russell 1000® Growth Index
Russell 1000® Growth Index \| Average Annual Return, Percent		18.56%	15.32%	18.13%
Russell 1000® Index \| Average Annual Return, Label [Optional Text]	Russell 1000® Index
Russell 1000® Index \| Average Annual Return, Percent		17.37%	13.59%	14.59%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		12.62%	13.29%	15.01%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		12.37%	12.28%	14.17%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		7.63%	10.38%	12.41%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

21.45%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(30.33%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

U.S. Large Cap Equity Portfolio Institutional Class Shares1 —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - U.S. Large Cap Equity Portfolio			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 1000® Index \| Average Annual Return, Label [Optional Text]	^[1]	Russell 1000® Index
Russell 1000® Index \| Average Annual Return, Percent	^[1]		17.37%	13.59%	14.59%
Institutional Class \| Average Annual Return, Label [Optional Text]	^[1]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent	^[1]		16.77%	13.62%	14.35%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	^[1]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent	^[1]		16.47%	12.77%	13.68%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	^[1]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent	^[1]		10.10%	10.70%	11.89%

[1]

As of December 31, 2025, the ETF Class shares of the Portfolio had not yet incepted. Performance shown prior to the inception date of the ETF Class shares is from the Portfolio's Institutional Class shares, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns for the ETF Class shares and Institutional Class shares may vary due to differences in their expenses.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

21.60%

^[1]

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares of the Portfolio are a new class of shares for which performance information is not available, and therefore, for periods prior to the inception of the ETF Class shares, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year. The table illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares of the Portfolio are a new class of shares for which performance information is not available, and therefore, for periods prior to the inception of the ETF Class shares, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

^[2]

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2020

Lowest Quarterly Return

(39.02%)

^[2]

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

U.S. Targeted Value Portfolio Institutional Class Shares1 —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - U.S. Targeted Value Portfolio			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 2000® Value Index \| Average Annual Return, Label [Optional Text]	^[1]	Russell 2000® Value Index
Russell 2000® Value Index \| Average Annual Return, Percent	^[1]		12.59%	8.88%	9.27%
Russell 3000® Index \| Average Annual Return, Label [Optional Text]	^[1]	Russell 3000® Index
Russell 3000® Index \| Average Annual Return, Percent	^[1]		17.15%	13.15%	14.29%
Institutional Class \| Average Annual Return, Label [Optional Text]	^[1]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent	^[1]		9.55%	13.60%	10.81%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	^[1]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent	^[1]		9.08%	12.59%	9.75%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	^[1]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent	^[1]		5.94%	10.70%	8.60%

[1]

As of December 31, 2025, the ETF Class shares of the Portfolio had not yet incepted. Performance shown prior to the inception date of the ETF Class shares is from the Portfolio's Institutional Class shares, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns for the ETF Class shares and Institutional Class shares may vary due to differences in their expenses.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

32.77%

^[3]

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares of the Portfolio are a new class of shares for which performance information is not available, and therefore, for periods prior to the inception of the ETF Class shares, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year. The table illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares of the Portfolio are a new class of shares for which performance information is not available, and therefore, for periods prior to the inception of the ETF Class shares, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

^[4]

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(24.35%)

^[4]

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

U.S. Core Equity 2 Portfolio Institutional Class Shares1 —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - U.S. CORE EQUITY 2 PORTFOLIO			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 3000® Index \| Average Annual Return, Label [Optional Text]	^[1]	Russell 3000® Index
Russell 3000® Index \| Average Annual Return, Percent	^[1]		17.15%	13.15%	14.29%
Institutional Class \| Average Annual Return, Label [Optional Text]	^[1]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent	^[1]		15.99%	13.38%	13.39%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	^[1]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent	^[1]		15.67%	12.67%	12.69%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	^[1]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent	^[1]		9.66%	10.55%	11.00%

[1]

As of December 31, 2025, the ETF Class shares of the Portfolio had not yet incepted. Performance shown prior to the inception date of the ETF Class shares is from the Portfolio's Institutional Class shares, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns for the ETF Class shares and Institutional Class shares may vary due to differences in their expenses.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

22.39%

^[5]

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares of the Portfolio are a new class of shares for which performance information is not available, and therefore, for periods prior to the inception of the ETF Class shares, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year. The table illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares of the Portfolio are a new class of shares for which performance information is not available, and therefore, for periods prior to the inception of the ETF Class shares, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

^[6]

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2020

Lowest Quarterly Return

(31.99%)

^[6]

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

U.S. Small Cap Portfolio Institutional Class Shares1 —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - U.S. SMALL CAP PORTFOLIO			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 2000® Index \| Average Annual Return, Label [Optional Text]	^[1]	Russell 2000® Index
Russell 2000® Index \| Average Annual Return, Percent	^[1]		12.81%	6.09%	9.62%
Russell 3000® Index \| Average Annual Return, Label [Optional Text]	^[1]	Russell 3000® Index
Russell 3000® Index \| Average Annual Return, Percent	^[1]		17.15%	13.15%	14.29%
Institutional Class \| Average Annual Return, Label [Optional Text]	^[1]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent	^[1]		8.07%	9.87%	10.00%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	^[1]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent	^[1]		7.78%	9.03%	9.10%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	^[1]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent	^[1]		4.96%	7.68%	7.97%

[1]

As of December 31, 2025, the ETF Class shares of the Portfolio had not yet incepted. Performance shown prior to the inception date of the ETF Class shares is from the Portfolio's Institutional Class shares, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns for the ETF Class shares and Institutional Class shares may vary due to differences in their expenses.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

28.70%

^[7]

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares of the Portfolio are a new class of shares for which performance information is not available, and therefore, for periods prior to the inception of the ETF Class shares, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year. The table illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares of the Portfolio are a new class of shares for which performance information is not available, and therefore, for periods prior to the inception of the ETF Class shares, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

^[8]

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2020

Lowest Quarterly Return

(34.75%)

^[8]

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

U.S. High Relative Profitability Portfolio Institutional Class Shares1 —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - U.S. High Relative Profitability Portfolio			12 Months Ended	60 Months Ended	104 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 1000® Index \| Average Annual Return, Label [Optional Text]	^[1]	Russell 1000® Index
Russell 1000® Index \| Average Annual Return, Percent	^[1]		17.37%	13.59%	14.55%	^[2]
Russell 1000® Index \| Performance Inception Date					May 16, 2017
Institutional Class \| Average Annual Return, Label [Optional Text]	^[1]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent	^[1]		12.81%	12.60%	14.48%	^[2]
Institutional Class \| Performance Inception Date					May 16, 2017
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	^[1]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent	^[1]		12.51%	12.03%	13.97%	^[2]
Institutional Class \| After Taxes on Distributions \| Performance Inception Date					May 16, 2017
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	^[1]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent	^[1]		7.77%	9.95%	11.95%	^[2]
Institutional Class \| After Taxes on Distributions and Sales \| Performance Inception Date					May 16, 2017

[1]	As of December 31, 2025, the ETF Class shares of the Portfolio had not yet incepted. Performance shown prior to the inception date of the ETF Class shares is from the Portfolio's Institutional Class shares, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns for the ETF Class shares and Institutional Class shares may vary due to differences in their expenses.
[2]	Since inception May 16, 2017.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

19.66%

^[9]

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares of the Portfolio are a new class of shares for which performance information is not available, and therefore, for periods prior to the inception of the ETF Class shares, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year. The table illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares of the Portfolio are a new class of shares for which performance information is not available, and therefore, for periods prior to the inception of the ETF Class shares, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

^[10]

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2023

Lowest Quarterly Return

(23.06%)

^[10]

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

U.S. Large Cap Growth Portfolio Institutional Class Shares1 —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - U.S. Large Cap Growth Portfolio			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 1000® Growth Index \| Average Annual Return, Label [Optional Text]	^[1]	Russell 1000® Growth Index
Russell 1000® Growth Index \| Average Annual Return, Percent	^[1]		18.56%	15.32%	18.13%
Russell 1000® Index \| Average Annual Return, Label [Optional Text]	^[1]	Russell 1000® Index
Russell 1000® Index \| Average Annual Return, Percent	^[1]		17.37%	13.59%	14.59%
Institutional Class \| Average Annual Return, Label [Optional Text]	^[1]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent	^[1]		12.62%	13.29%	15.01%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	^[1]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent	^[1]		12.37%	12.28%	14.17%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	^[1]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent	^[1]		7.63%	10.38%	12.41%

[1]

As of December 31, 2025, the ETF Class shares of the Portfolio had not yet incepted. Performance shown prior to the inception date of the ETF Class shares is from the Portfolio's Institutional Class shares, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns for the ETF Class shares and Institutional Class shares may vary due to differences in their expenses.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

21.45%

^[11]

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares of the Portfolio are a new class of shares for which performance information is not available, and therefore, for periods prior to the inception of the ETF Class shares, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year. The table illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The ETF Class shares of the Portfolio are a new class of shares for which performance information is not available, and therefore, for periods prior to the inception of the ETF Class shares, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, a mutual fund class of shares of the Portfolio not offered in this Prospectus. Returns of the ETF Class shares of the Portfolio may vary from the returns of the Institutional Class shares due to differences in expenses. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

^[12]

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(30.33%)

^[12]

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Enhanced U.S. Large Company Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - ENHANCED U.S. LARGE COMPANY PORTFOLIO			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
S&P 500® Index1 \| Average Annual Return, Label [Optional Text]	^[1]	S&P 500® Index1
S&P 500® Index1 \| Average Annual Return, Percent			17.88%	14.42%	14.82%
Institutional Class \| Average Annual Return, Label [Optional Text]		Return Before Taxes
Institutional Class \| Average Annual Return, Percent			17.38%	12.85%	14.04%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent			11.18%	8.66%	10.35%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent			11.64%	8.59%	9.95%

[1]	Copyright^® 2025 S&P Dow Jones Indices LLC, a division of S&P Global. All rights reserved.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

22.61%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2020

Lowest Quarterly Return

(31.52%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Large Cap International Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - LARGE CAP INTERNATIONAL PORTFOLIO		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI World ex USA Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI World ex USA Index (net dividends)
MSCI World ex USA Index (net dividends) \| Average Annual Return, Percent		31.85%	9.46%	8.55%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		33.91%	10.12%	9.02%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		32.86%	9.33%	8.29%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		20.70%	7.88%	7.20%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

17.27%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(27.64%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Global Small Company Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - Global Small Company Portfolio		12 Months Ended	60 Months Ended	107 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI All Country World Small Cap Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI All Country World Small Cap Index (net dividends)
MSCI All Country World Small Cap Index (net dividends) \| Average Annual Return, Percent		19.72%	7.29%	8.91%	^[1]
MSCI All Country World Small Cap Index (net dividends) \| Performance Inception Date				Jan. 18, 2017
MSCI All Country World IMI Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI All Country World IMI Index (net dividends)
MSCI All Country World IMI Index (net dividends) \| Average Annual Return, Percent		22.06%	10.75%	11.59%	^[1]
MSCI All Country World IMI Index (net dividends) \| Performance Inception Date				Jan. 18, 2017
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		15.76%	9.11%	8.61%	^[1]
Institutional Class \| Performance Inception Date				Jan. 18, 2017
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		15.30%	8.52%	8.10%	^[1]
Institutional Class \| After Taxes on Distributions \| Performance Inception Date				Jan. 18, 2017
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		9.64%	7.14%	6.89%	^[1]
Institutional Class \| After Taxes on Distributions and Sales \| Performance Inception Date				Jan. 18, 2017

[1]	Since inception January 18, 2017.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

24.12%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(30.21%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Japanese Small Company Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - JAPANESE SMALL COMPANY PORTFOLIO		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI Japan Small Cap Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI Japan Small Cap Index (net dividends)
MSCI Japan Small Cap Index (net dividends) \| Average Annual Return, Percent		28.70%	5.52%	7.02%
MSCI Japan Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI Japan Index (net dividends)
MSCI Japan Index (net dividends) \| Average Annual Return, Percent		24.60%	6.60%	7.62%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		31.56%	7.21%	7.56%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		30.38%	6.06%	6.55%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		19.31%	5.43%	5.91%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

13.25%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(31.85%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

United Kingdom Small Company Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - UNITED KINGDOM SMALL COMPANY PORTFOLIO		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI United Kingdom Small Cap Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI United Kingdom Small Cap Index (net dividends)
MSCI United Kingdom Small Cap Index (net dividends) \| Average Annual Return, Percent		24.66%	3.55%	4.14%
MSCI United Kingdom Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI United Kingdom Index (net dividends)
MSCI United Kingdom Index (net dividends) \| Average Annual Return, Percent		35.11%	13.33%	7.83%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		21.45%	5.60%	4.67%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		20.04%	4.60%	3.22%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		13.31%	4.17%	3.31%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

28.40%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(29.78%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA International Real Estate Securities Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA International Real Estate Securities Portfolio			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
S&P Global ex US REIT Index (net dividends)1 \| Average Annual Return, Label [Optional Text]	^[1]	S&P Global ex US REIT Index (net dividends)1
S&P Global ex US REIT Index (net dividends)1 \| Average Annual Return, Percent			24.29%	1.09%	2.62%
MSCI All Country World ex USA IMI Index (net dividends) \| Average Annual Return, Label [Optional Text]		MSCI All Country World ex USA IMI Index (net dividends)
MSCI All Country World ex USA IMI Index (net dividends) \| Average Annual Return, Percent			31.96%	7.77%	8.37%
Institutional Class \| Average Annual Return, Label [Optional Text]		Return Before Taxes
Institutional Class \| Average Annual Return, Percent			24.63%	1.50%	2.98%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent			22.13%	(0.05%)	1.08%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent			15.29%	0.73%	1.67%

[1]	Copyright^® 2025 S&P Dow Jones Indices LLC, a division of S&P Global. All rights reserved.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

16.00%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2023

Lowest Quarterly Return

(26.63%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA International Small Cap Value Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA INTERNATIONAL SMALL CAP VALUE PORTFOLIO		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI World ex USA Small Value Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI World ex USA Small Value Index (net dividends)
MSCI World ex USA Small Value Index (net dividends) \| Average Annual Return, Percent		38.55%	9.77%	8.50%
MSCI World ex USA Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI World ex USA Index (net dividends)
MSCI World ex USA Index (net dividends) \| Average Annual Return, Percent		31.85%	9.46%	8.55%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		52.07%	15.06%	10.06%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		49.37%	13.94%	8.95%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		32.39%	11.91%	7.94%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

19.81%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(30.27%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

International High Relative Profitability Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - International High Relative Profitability Portfolio		12 Months Ended	60 Months Ended	104 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI World ex USA Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI World ex USA Index (net dividends)
MSCI World ex USA Index (net dividends) \| Average Annual Return, Percent		31.85%	9.46%	8.14%	^[1]
MSCI World ex USA Index (net dividends) \| Performance Inception Date				May 16, 2017
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		27.02%	7.26%	7.71%	^[1]
Institutional Class \| Performance Inception Date				May 16, 2017
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		26.20%	6.62%	7.18%	^[1]
Institutional Class \| After Taxes on Distributions \| Performance Inception Date				May 16, 2017
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		16.60%	5.65%	6.17%	^[1]
Institutional Class \| After Taxes on Distributions and Sales \| Performance Inception Date				May 16, 2017

[1]	Since inception May 16, 2017.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

18.60%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2020

Lowest Quarterly Return

(32.09%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

World ex U.S. Core Equity Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - World ex U.S. Core Equity Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI All Country World ex USA IMI Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI All Country World ex USA IMI Index (net dividends)
MSCI All Country World ex USA IMI Index (net dividends) \| Average Annual Return, Percent		31.96%	7.77%	8.37%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		33.75%	9.52%	9.04%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		32.63%	8.66%	8.28%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		20.60%	7.34%	7.18%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

19.54%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns

depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(25.82%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Selectively Hedged Global Equity Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - Selectively Hedged Global Equity Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI All Country World IMI Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI All Country World IMI Index (net dividends)
MSCI All Country World IMI Index (net dividends) \| Average Annual Return, Percent		22.06%	10.75%	11.45%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		21.42%	12.36%	11.85%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		20.53%	10.64%	10.56%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		13.32%	9.38%	9.40%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

20.60%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and

after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2020

Lowest Quarterly Return

(27.13%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Emerging Markets Value Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - EMERGING MARKETS VALUE PORTFOLIO		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI Emerging Markets Value Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI Emerging Markets Value Index (net dividends)
MSCI Emerging Markets Value Index (net dividends) \| Average Annual Return, Percent		32.74%	6.76%	7.96%
MSCI Emerging Markets Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI Emerging Markets Index (net dividends)
MSCI Emerging Markets Index (net dividends) \| Average Annual Return, Percent		33.57%	4.20%	8.42%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		29.49%	9.95%	9.84%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		28.14%	8.79%	8.93%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		18.09%	7.59%	7.84%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

20.97%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and

after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(33.64%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Emerging Markets Small Cap Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - EMERGING MARKETS SMALL CAP PORTFOLIO		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI Emerging Markets Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI Emerging Markets Index (net dividends)
MSCI Emerging Markets Index (net dividends) \| Average Annual Return, Percent		33.57%	4.20%	8.42%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		19.00%	7.11%	8.59%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		17.79%	5.95%	7.34%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		11.84%	5.30%	6.56%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

26.52%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2020

Lowest Quarterly Return

(28.31%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Emerging Markets ex China Core Equity Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - Emerging Markets ex China Core Equity Portfolio		12 Months Ended	50 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI Emerging Markets ex China Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI Emerging Markets ex China Index (net dividends)
MSCI Emerging Markets ex China Index (net dividends) \| Average Annual Return, Percent		34.61%	7.31%	^[1]
MSCI Emerging Markets ex China Index (net dividends) \| Performance Inception Date			Nov. 15, 2021
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		27.85%	8.31%	^[1]
Institutional Class \| Performance Inception Date			Nov. 15, 2021
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		27.21%	7.56%	^[1]
Institutional Class \| After Taxes on Distributions \| Performance Inception Date			Nov. 15, 2021
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		17.12%	6.33%	^[1]
Institutional Class \| After Taxes on Distributions and Sales \| Performance Inception Date			Nov. 15, 2021

[1]	Since inception November 15, 2021.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

15.50%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Jun. 30, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Mar. 31, 2024

Lowest Quarterly Return

(1.23%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA Two-Year Global Fixed Income Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA TWO-YEAR GLOBAL FIXED INCOME PORTFOLIO		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
FTSE World Government Bond Index 1-2 Years (hedged to USD) \| Average Annual Return, Label [Optional Text]	FTSE World Government Bond Index 1-2 Years (hedged to USD)
FTSE World Government Bond Index 1-2 Years (hedged to USD) \| Average Annual Return, Percent		4.55%	2.43%	2.10%
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Label [Optional Text]	Bloomberg Global Aggregate Bond Index (hedged to USD)
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Percent		4.86%	0.34%	2.39%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		4.42%	2.30%	1.90%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		2.69%	1.19%	1.04%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		2.61%	1.28%	1.08%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

1.40%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Mar. 31, 2016

Lowest Quarterly Return

(3.46%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA Five-Year Global Fixed Income Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA FIVE-YEAR GLOBAL FIXED INCOME PORTFOLIO		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
FTSE World Government Bond Index 1-5 Years (hedged to USD) \| Average Annual Return, Label [Optional Text]	FTSE World Government Bond Index 1-5 Years (hedged to USD)
FTSE World Government Bond Index 1-5 Years (hedged to USD) \| Average Annual Return, Percent		5.12%	1.80%	2.08%
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Label [Optional Text]	Bloomberg Global Aggregate Bond Index (hedged to USD)
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Percent		4.86%	0.34%	2.39%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		4.33%	1.30%	1.75%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		2.63%	0.11%	0.70%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		2.55%	0.47%	0.88%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

2.32%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2023

Lowest Quarterly Return

(7.40%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA Short-Term Government Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA SHORT-TERM GOVERNMENT PORTFOLIO			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
ICE BofA 1-5 Year US Treasury & Agency Index1 \| Average Annual Return, Label [Optional Text]	^[1]	ICE BofA 1-5 Year US Treasury & Agency Index1
ICE BofA 1-5 Year US Treasury & Agency Index1 \| Average Annual Return, Percent			5.73%	1.35%	1.83%
Bloomberg U.S. Aggregate Bond Index \| Average Annual Return, Label [Optional Text]		Bloomberg U.S. Aggregate Bond Index
Bloomberg U.S. Aggregate Bond Index \| Average Annual Return, Percent			7.30%	(0.36%)	2.01%
Institutional Class \| Average Annual Return, Label [Optional Text]		Return Before Taxes
Institutional Class \| Average Annual Return, Percent			4.15%	1.68%	1.39%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent			2.49%	0.50%	0.55%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent			2.44%	0.77%	0.70%

[1]

ICE BofA index data copyright 2025 ICE Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), which may be higher or lower than the actual transaction costs incurred by the Portfolio.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

1.67%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Mar. 31, 2020

Lowest Quarterly Return

(5.98%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA Short-Term Extended Quality Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA Short-Term Extended Quality Portfolio			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
ICE BofA 1-5 Year US Corporate & Government Index1 \| Average Annual Return, Label [Optional Text]	^[1]	ICE BofA 1-5 Year US Corporate & Government Index1
ICE BofA 1-5 Year US Corporate & Government Index1 \| Average Annual Return, Percent			6.06%	1.60%	2.19%
Bloomberg U.S. Aggregate Bond Index \| Average Annual Return, Label [Optional Text]		Bloomberg U.S. Aggregate Bond Index
Bloomberg U.S. Aggregate Bond Index \| Average Annual Return, Percent			7.30%	(0.36%)	2.01%
Institutional Class \| Average Annual Return, Label [Optional Text]		Return Before Taxes
Institutional Class \| Average Annual Return, Percent			4.92%	1.92%	2.17%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent			3.13%	0.71%	1.16%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent			2.89%	0.94%	1.22%

[1]

ICE BofA index data copyright 2025 ICE Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), which may be higher or lower than the actual transaction costs incurred by the Portfolio.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

2.11%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(7.79%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA Targeted Credit Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA TARGETED CREDIT PORTFOLIO		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Bloomberg Global Aggregate Credit Bond Index 1-5 Years (hedged to USD) \| Average Annual Return, Label [Optional Text]	Bloomberg Global Aggregate Credit Bond Index 1-5 Years (hedged to USD)
Bloomberg Global Aggregate Credit Bond Index 1-5 Years (hedged to USD) \| Average Annual Return, Percent		6.31%	2.35%	2.94%
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Label [Optional Text]	Bloomberg Global Aggregate Bond Index (hedged to USD)
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Percent		4.86%	0.34%	2.39%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		5.36%	1.75%	2.40%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		3.62%	0.58%	1.32%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		3.15%	0.83%	1.37%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

4.15%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2023

Lowest Quarterly Return

(7.39%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA Investment Grade Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA Investment Grade Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Bloomberg U.S. Aggregate Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg U.S. Aggregate Bond Index
Bloomberg U.S. Aggregate Bond Index \| Average Annual Return, Percent		7.30%	(0.36%)	2.01%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		7.22%	(0.12%)	2.36%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		5.58%	(1.39%)	1.21%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		4.26%	(0.63%)	1.32%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

6.35%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Mar. 31, 2020

Lowest Quarterly Return

(3.59%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA LTIP Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA LTIP PORTFOLIO		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
FTSE U.S. Inflation-Linked Securities Index, 20+ Years \| Average Annual Return, Label [Optional Text]	FTSE U.S. Inflation-Linked Securities Index, 20+ Years
FTSE U.S. Inflation-Linked Securities Index, 20+ Years \| Average Annual Return, Percent		2.85%	(7.30%)	1.18%
Bloomberg U.S. Aggregate Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg U.S. Aggregate Bond Index
Bloomberg U.S. Aggregate Bond Index \| Average Annual Return, Percent		7.30%	(0.36%)	2.01%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		1.54%	(9.64%)	0.11%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		(1.09%)	(11.98%)	(1.82%)
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		0.92%	(7.59%)	(0.41%)

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

11.74%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Jun. 30, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Mar. 31, 2016

Lowest Quarterly Return

(6.52%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA Short-Duration Real Return Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA Short-Duration Real Return Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Bloomberg U.S. TIPS 1-5 Years Index \| Average Annual Return, Label [Optional Text]	Bloomberg U.S. TIPS 1-5 Years Index
Bloomberg U.S. TIPS 1-5 Years Index \| Average Annual Return, Percent		6.55%	3.32%	3.16%
Bloomberg U.S. Aggregate Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg U.S. Aggregate Bond Index
Bloomberg U.S. Aggregate Bond Index \| Average Annual Return, Percent		7.30%	(0.36%)	2.01%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		4.86%	3.84%	3.30%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		3.04%	2.62%	2.30%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		2.96%	2.44%	2.12%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

3.57%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2023

Lowest Quarterly Return

(9.08%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA Municipal Real Return Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA Municipal Real Return Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
S&P Intermediate Term National AMT-Free Municipal Bond Index \| Average Annual Return, Label [Optional Text]	S&P Intermediate Term National AMT-Free Municipal Bond Index
S&P Intermediate Term National AMT-Free Municipal Bond Index \| Average Annual Return, Percent		4.65%	1.22%	2.25%
S&P National AMT-Free Municipal Bond Index \| Average Annual Return, Label [Optional Text]	S&P National AMT-Free Municipal Bond Index
S&P National AMT-Free Municipal Bond Index \| Average Annual Return, Percent		3.77%	0.84%	2.28%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		3.12%	2.79%	2.75%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		2.91%	2.69%	2.70%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		2.99%	2.57%	2.51%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

5.26%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(5.97%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA Municipal Bond Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA Municipal Bond Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
S&P Intermediate Term National AMT-Free Municipal Bond Index \| Average Annual Return, Label [Optional Text]	S&P Intermediate Term National AMT-Free Municipal Bond Index
S&P Intermediate Term National AMT-Free Municipal Bond Index \| Average Annual Return, Percent		4.65%	1.22%	2.25%
S&P National AMT-Free Municipal Bond Index \| Average Annual Return, Label [Optional Text]	S&P National AMT-Free Municipal Bond Index
S&P National AMT-Free Municipal Bond Index \| Average Annual Return, Percent		3.77%	0.84%	2.28%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		3.91%	0.62%	1.37%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		3.91%	0.62%	1.37%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		3.17%	0.77%	1.36%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

4.32%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and

after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2023

Lowest Quarterly Return

(0.96%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA Intermediate-Term Municipal Bond Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA Intermediate-Term Municipal Bond Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
S&P Intermediate Term National AMT-Free Municipal Bond Index \| Average Annual Return, Label [Optional Text]	S&P Intermediate Term National AMT-Free Municipal Bond Index
S&P Intermediate Term National AMT-Free Municipal Bond Index \| Average Annual Return, Percent		4.65%	1.22%	2.25%
S&P National AMT-Free Municipal Bond Index \| Average Annual Return, Label [Optional Text]	S&P National AMT-Free Municipal Bond Index
S&P National AMT-Free Municipal Bond Index \| Average Annual Return, Percent		3.77%	0.84%	2.28%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		4.07%	1.01%	1.66%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		4.07%	1.01%	1.66%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		3.53%	1.21%	1.66%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

5.24%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2023

Lowest Quarterly Return

(5.29%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA Short-Term Selective State Municipal Bond Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA Short-Term Selective State Municipal Bond Portfolio			12 Months Ended	45 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
ICE BofA 1-3 Year US Municipal Securities Index2 \| Average Annual Return, Label [Optional Text]	^[1]	ICE BofA 1-3 Year US Municipal Securities Index2
ICE BofA 1-3 Year US Municipal Securities Index2 \| Average Annual Return, Percent			3.72%	2.77%	^[2]
ICE BofA 1-3 Year US Municipal Securities Index2 \| Performance Inception Date				Apr. 12, 2022
S&P National AMT-Free Municipal Bond Index \| Average Annual Return, Label [Optional Text]		S&P National AMT-Free Municipal Bond Index
S&P National AMT-Free Municipal Bond Index \| Average Annual Return, Percent			3.77%	2.71%	^[2]
S&P National AMT-Free Municipal Bond Index \| Performance Inception Date				Apr. 12, 2022
Institutional Class \| Average Annual Return, Label [Optional Text]		Return Before Taxes
Institutional Class \| Average Annual Return, Percent			2.87%	2.47%	^[2]
Institutional Class \| Performance Inception Date				Apr. 12, 2022
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent			2.87%	2.47%	^[2]
Institutional Class \| After Taxes on Distributions \| Performance Inception Date				Apr. 12, 2022
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent			2.83%	2.48%	^[2]
Institutional Class \| After Taxes on Distributions and Sales \| Performance Inception Date				Apr. 12, 2022

[1]	ICE BofA index data copyright 2025 ICE Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), which may be higher or lower than the actual transaction costs incurred by the Portfolio.
[2]	Since inception April 12, 2022.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

1.59%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Jun. 30, 2023

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2023

Lowest Quarterly Return

(1.20%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA California Intermediate-Term Municipal Bond Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA California Intermediate-Term Municipal Bond Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
S&P Intermediate Term California AMT-Free Municipal Bond Index \| Average Annual Return, Label [Optional Text]	S&P Intermediate Term California AMT-Free Municipal Bond Index
S&P Intermediate Term California AMT-Free Municipal Bond Index \| Average Annual Return, Percent		4.59%	1.09%	2.07%
S&P National AMT-Free Municipal Bond Index \| Average Annual Return, Label [Optional Text]	S&P National AMT-Free Municipal Bond Index
S&P National AMT-Free Municipal Bond Index \| Average Annual Return, Percent		3.77%	0.84%	2.28%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		3.70%	0.83%	1.43%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		3.70%	0.83%	1.43%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		3.21%	1.02%	1.45%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

4.98%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2023

Lowest Quarterly Return

(2.21%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA NY Municipal Bond Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA NY MUNICIPAL BOND PORTFOLIO		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
S&P Intermediate Term New York AMT-Free Municipal Bond Index \| Average Annual Return, Label [Optional Text]	S&P Intermediate Term New York AMT-Free Municipal Bond Index
S&P Intermediate Term New York AMT-Free Municipal Bond Index \| Average Annual Return, Percent		4.51%	1.34%	2.17%
S&P National AMT-Free Municipal Bond Index \| Average Annual Return, Label [Optional Text]	S&P National AMT-Free Municipal Bond Index
S&P National AMT-Free Municipal Bond Index \| Average Annual Return, Percent		3.77%	0.84%	2.28%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		3.11%	1.48%	1.45%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		3.11%	1.48%	1.45%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		2.99%	1.54%	1.45%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

1.56%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2023

Lowest Quarterly Return

(3.92%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

World ex U.S. Targeted Value Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - World ex U.S. Targeted Value Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI All Country World ex USA SMID Value Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI All Country World ex USA SMID Value Index (net dividends)
MSCI All Country World ex USA SMID Value Index (net dividends) \| Average Annual Return, Percent		33.98%	9.50%	8.24%
MSCI All Country World ex USA IMI Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI All Country World ex USA IMI Index (net dividends)
MSCI All Country World ex USA IMI Index (net dividends) \| Average Annual Return, Percent		31.96%	7.77%	8.37%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		39.65%	11.71%	9.49%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		38.79%	10.94%	8.78%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		24.28%	9.32%	7.71%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

21.61%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The performance reflected in the bar chart for the Portfolio does not reflect any insurance company separate account charges, which if reflected would lower returns. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2020

Lowest Quarterly Return

(31.69%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Dimensional VA U.S. Targeted Value Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - Dimensional VA U.S. Targeted Value Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 2000® Value Index \| Average Annual Return, Label [Optional Text]	Russell 2000® Value Index
Russell 2000® Value Index \| Average Annual Return, Percent		12.59%	8.88%	9.27%
Russell 3000® Index \| Average Annual Return, Label [Optional Text]	Russell 3000® Index
Russell 3000® Index \| Average Annual Return, Percent		17.15%	13.15%	14.29%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		8.95%	13.60%	11.00%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		5.88%	10.81%	8.76%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		6.46%	10.13%	8.23%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

33.64%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The performance reflected in the bar chart for the Portfolio does not reflect any insurance company separate account charges, which if reflected would lower returns. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of

market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Dec. 31, 2020

Lowest Quarterly Return

(31.89%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Dimensional VA International Small Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - Dimensional VA International Small Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI World ex USA Small Cap Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI World ex USA Small Cap Index (net dividends)
MSCI World ex USA Small Cap Index (net dividends) \| Average Annual Return, Percent		34.07%	6.49%	8.05%
MSCI World ex USA Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI World ex USA Index (net dividends)
MSCI World ex USA Index (net dividends) \| Average Annual Return, Percent		31.85%	9.46%	8.55%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		36.99%	8.89%	8.68%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		33.85%	6.66%	6.73%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		22.57%	6.08%	6.15%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

21.42%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The performance reflected in the bar chart for the Portfolio does not reflect any insurance company separate account charges, which if reflected would lower returns. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Mar. 31, 2024

Lowest Quarterly Return

(1.18%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Dimensional VA Global Bond Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - Dimensional VA Global Bond Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
FTSE World Government Bond Index 1-5 Years (hedged to USD) \| Average Annual Return, Label [Optional Text]	FTSE World Government Bond Index 1-5 Years (hedged to USD)
FTSE World Government Bond Index 1-5 Years (hedged to USD) \| Average Annual Return, Percent		5.12%	1.80%	2.08%
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Label [Optional Text]	Bloomberg Global Aggregate Bond Index (hedged to USD)
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Percent		4.86%	0.34%	2.39%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		4.35%	1.38%	1.81%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		2.62%	0.12%	0.71%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		2.57%	0.51%	0.91%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

2.35%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The performance reflected in the bar chart for the Portfolio does not reflect any insurance company separate account charges, which if reflected would lower returns. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Mar. 31, 2016

Lowest Quarterly Return

(6.40%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Dimensional VA Global Moderate Allocation Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - Dimensional VA Global Moderate Allocation Portfolio			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
VA Global Moderate Allocation Composite Index1 \| Average Annual Return, Label [Optional Text]	^[1]	VA Global Moderate Allocation Composite Index1
VA Global Moderate Allocation Composite Index1 \| Average Annual Return, Percent			15.79%	7.75%	8.24%
S&P Global BMI Index (net dividends) \| Average Annual Return, Label [Optional Text]		S&P Global BMI Index (net dividends)
S&P Global BMI Index (net dividends) \| Average Annual Return, Percent			21.96%	10.50%	11.28%
ICE BofA 1-3 Year Global Government Index (hedged to USD)2 \| Average Annual Return, Label [Optional Text]	^[2]	ICE BofA 1-3 Year Global Government Index (hedged to USD)2
ICE BofA 1-3 Year Global Government Index (hedged to USD)2 \| Average Annual Return, Percent			4.84%	2.23%	2.09%
Institutional Class \| Average Annual Return, Label [Optional Text]		Return Before Taxes
Institutional Class \| Average Annual Return, Percent			14.68%	8.42%	8.65%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent			13.28%	7.10%	7.49%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent			8.86%	6.10%	6.51%

[1]	Dimensional VA Global Moderate Allocation Composite Index is an unmanaged hypothetical index composed of 65% S&P Global BMI Index (net dividends) and 35% ICE BofA 1-3 Year Global Government Index (hedged to USD).
[2]	ICE BofA index data copyright 2025 ICE Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), which may be higher or lower than the actual transaction costs incurred by the Portfolio.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

14.04%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The performance reflected in the bar chart for the Portfolio does not reflect any insurance company separate account charges, which if reflected would lower returns. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(26.56%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

U.S. Social Core Equity 2 Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - U.S. Social Core Equity 2 Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Russell 3000® Index \| Average Annual Return, Label [Optional Text]	Russell 3000® Index
Russell 3000® Index \| Average Annual Return, Percent		17.15%	13.15%	14.29%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		15.96%	13.34%	13.53%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		15.71%	12.65%	12.81%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		9.61%	10.51%	11.11%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

23.06%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and

after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(28.77%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Emerging Markets Social Core Equity Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - Emerging Markets Social Core Equity Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI Emerging Markets Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI Emerging Markets Index (net dividends)
MSCI Emerging Markets Index (net dividends) \| Average Annual Return, Percent		33.57%	4.20%	8.42%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		30.18%	6.31%	9.04%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		29.33%	5.49%	8.33%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		18.46%	4.72%	7.19%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

21.30%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(27.28%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

DFA Social Fixed Income Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DFA Social Fixed Income Portfolio		12 Months Ended	60 Months Ended	117 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Bloomberg U.S. Aggregate Bond Index \| Average Annual Return, Label [Optional Text]	Bloomberg U.S. Aggregate Bond Index
Bloomberg U.S. Aggregate Bond Index \| Average Annual Return, Percent		7.30%	(0.36%)	1.72%	^[1]
Bloomberg U.S. Aggregate Bond Index \| Performance Inception Date				Apr. 05, 2016
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		7.07%	(0.13%)	1.93%	^[1]
Institutional Class \| Performance Inception Date				Apr. 05, 2016
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		5.40%	(1.42%)	0.82%	^[1]
Institutional Class \| After Taxes on Distributions \| Performance Inception Date				Apr. 05, 2016
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		4.17%	(0.64%)	1.00%	^[1]
Institutional Class \| After Taxes on Distributions and Sales \| Performance Inception Date				Apr. 05, 2016

[1]	Since inception April 5, 2016.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

6.63%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

23.09%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

20.84%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Jun. 30, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

19.05%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

20.30%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

Performance information is not available for the Portfolio because it has not yet completed a full calendar year of operations. Updated performance information for the Portfolio can be obtained in the future by visiting https://www.dimensional.com/us-en/funds.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

7.43%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the VA Global Moderate Allocation Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The Class L10 shares of the Portfolio are a new class of shares for which performance information is not available, therefore, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, another class of shares of the Portfolio not offered in this Prospectus. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year. The performance reflected in the bar chart for the Portfolio does not reflect any insurance company separate account charges, which if reflected would lower returns. The table illustrates how annualized returns of the Institutional Class shares of the Portfolio for certain periods compare with those of a broad measure of market performance. The table also includes the performance of additional indexes with similar investment universes of the Portfolio, or certain portions of the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the VA Global Moderate Allocation Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The Class L10 shares of the Portfolio are a new class of shares for which performance information is not available, therefore, the bar chart and table show performance information for the Institutional Class shares of the Portfolio, another class of shares of the Portfolio not offered in this Prospectus. The bar chart shows the changes in performance of the Institutional Class shares of the Portfolio from year to year.

Bar Chart [Heading]

Dimensional VA Global Moderate Allocation Portfolio Institutional Class Shares1 —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - Dimensional VA Global Moderate Allocation Portfolio			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
VA Global Moderate Allocation Composite Index2 \| Average Annual Return, Label [Optional Text]	^[1],[2]	VA Global Moderate Allocation Composite Index2
VA Global Moderate Allocation Composite Index2 \| Average Annual Return, Percent	^[2]		15.79%	7.75%	8.24%
S&P Global BMI Index (net dividends) \| Average Annual Return, Label [Optional Text]	^[2]	S&P Global BMI Index (net dividends)
S&P Global BMI Index (net dividends) \| Average Annual Return, Percent	^[2]		21.96%	10.50%	11.28%
ICE BofA 1-3 Year Global Government Index (hedged to USD)3 \| Average Annual Return, Label [Optional Text]	^[2],[3]	ICE BofA 1-3 Year Global Government Index (hedged to USD)3
ICE BofA 1-3 Year Global Government Index (hedged to USD)3 \| Average Annual Return, Percent	^[2]		4.84%	2.23%	2.09%
Institutional Class \| Average Annual Return, Label [Optional Text]	^[2]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent	^[2]		14.68%	8.42%	8.65%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	^[2]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent	^[2]		13.28%	7.10%	7.49%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	^[2]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent	^[2]		8.86%	6.10%	6.51%

[1]	Dimensional VA Global Moderate Allocation Composite Index is an unmanaged hypothetical index composed of 65% S&P Global BMI Index (net dividends) and 35% ICE BofA 1-3 Year Global Government Index (hedged to USD).
[2]	The Institutional Class shares of the Portfolio would have substantially similar annual returns as the Class L10 shares because the shares are invested in the same portfolio securities. Returns for the Class L10 shares and Institutional Class shares will differ to the extent that the classes will have different expenses, and returns for the Class L10 shares would be expected to be lower than the returns of the Institutional Class shares to the extent that the Class L10 shares have higher expenses than the Institutional Class shares.
[3]	ICE BofA index data copyright 2025 ICE Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), which may be higher or lower than the actual transaction costs incurred by the Portfolio.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

14.04%

^[13]

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns

shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Mar. 31, 2022

Lowest Quarterly Return

(22.51%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

International Large Cap Growth Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - International Large Cap Growth Portfolio		12 Months Ended	60 Months Ended	120 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
MSCI World ex USA Growth Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI World ex USA Growth Index (net dividends)
MSCI World ex USA Growth Index (net dividends) \| Average Annual Return, Percent		21.94%	4.90%	7.67%
MSCI World ex USA Index (net dividends) \| Average Annual Return, Label [Optional Text]	MSCI World ex USA Index (net dividends)
MSCI World ex USA Index (net dividends) \| Average Annual Return, Percent		31.85%	9.46%	8.55%
Institutional Class \| Average Annual Return, Label [Optional Text]	Return Before Taxes
Institutional Class \| Average Annual Return, Percent		25.57%	6.81%	8.23%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent		25.06%	6.38%	7.78%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]	Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent		15.63%	5.35%	6.66%

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

18.06%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of an additional index with a similar investment universe as the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(28.42%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

Retirement Income Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DIMENSIONAL RETIREMENT INCOME FUND			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Bloomberg U.S. TIPS Index \| Average Annual Return, Label [Optional Text]		Bloomberg U.S. TIPS Index
Bloomberg U.S. TIPS Index \| Average Annual Return, Percent			7.01%	1.12%	3.09%
ICE BofA US 3-Month Treasury Bill Index1 \| Average Annual Return, Label [Optional Text]	^[1]	ICE BofA US 3-Month Treasury Bill Index1
ICE BofA US 3-Month Treasury Bill Index1 \| Average Annual Return, Percent			4.18%	3.17%	2.18%
S&P Global BMI Index (net dividends) \| Average Annual Return, Label [Optional Text]		S&P Global BMI Index (net dividends)
S&P Global BMI Index (net dividends) \| Average Annual Return, Percent			21.96%	10.50%	11.28%
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Label [Optional Text]		Bloomberg Global Aggregate Bond Index (hedged to USD)
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Percent			4.86%	0.34%	2.39%
Institutional Class \| Average Annual Return, Label [Optional Text]		Return Before Taxes
Institutional Class \| Average Annual Return, Percent			8.81%	3.82%	4.70%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent			7.45%	2.49%	3.68%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent			5.26%	2.38%	3.26%

[1]

ICE BofA index data copyright 2025 ICE Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), which may be higher or lower than the actual transaction costs incurred by the Portfolio.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

6.16%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Jun. 30, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of additional indexes with similar investment universes of the Portfolio, or certain portions of the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(9.55%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

2020 Target Date Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DIMENSIONAL 2020 TARGET DATE RETIREMENT INCOME FUND			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Bloomberg U.S. TIPS Index \| Average Annual Return, Label [Optional Text]		Bloomberg U.S. TIPS Index
Bloomberg U.S. TIPS Index \| Average Annual Return, Percent			7.01%	1.12%	3.09%
ICE BofA 1-3 Year Global Government Index (hedged to USD)1 \| Average Annual Return, Label [Optional Text]	^[1]	ICE BofA 1-3 Year Global Government Index (hedged to USD)1
ICE BofA 1-3 Year Global Government Index (hedged to USD)1 \| Average Annual Return, Percent			4.84%	2.23%	2.09%
S&P Global BMI Index (net dividends) \| Average Annual Return, Label [Optional Text]		S&P Global BMI Index (net dividends)
S&P Global BMI Index (net dividends) \| Average Annual Return, Percent			21.96%	10.50%	11.28%
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Label [Optional Text]		Bloomberg Global Aggregate Bond Index (hedged to USD)
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Percent			4.86%	0.34%	2.39%
Institutional Class \| Average Annual Return, Label [Optional Text]		Return Before Taxes
Institutional Class \| Average Annual Return, Percent			9.99%	2.34%	5.60%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent			7.90%	0.40%	4.13%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent			6.46%	1.13%	3.91%

[1]

ICE BofA index data copyright 2025 ICE Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), which may be higher or lower than the actual transaction costs incurred by the Portfolio.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

8.41%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Jun. 30, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of additional indexes with similar investment universes of the Portfolio, or certain portions of the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(13.19%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

2030 Target Date Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DIMENSIONAL 2030 TARGET DATE RETIREMENT INCOME FUND			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
Bloomberg U.S. TIPS Index \| Average Annual Return, Label [Optional Text]		Bloomberg U.S. TIPS Index
Bloomberg U.S. TIPS Index \| Average Annual Return, Percent			7.01%	1.12%	3.09%
ICE BofA 1-3 Year Global Government Index (hedged to USD)1 \| Average Annual Return, Label [Optional Text]	^[1]	ICE BofA 1-3 Year Global Government Index (hedged to USD)1
ICE BofA 1-3 Year Global Government Index (hedged to USD)1 \| Average Annual Return, Percent			4.84%	2.23%	2.09%
S&P Global BMI Index (net dividends) \| Average Annual Return, Label [Optional Text]		S&P Global BMI Index (net dividends)
S&P Global BMI Index (net dividends) \| Average Annual Return, Percent			21.96%	10.50%	11.28%
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Label [Optional Text]		Bloomberg Global Aggregate Bond Index (hedged to USD)
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Percent			4.86%	0.34%	2.39%
Institutional Class \| Average Annual Return, Label [Optional Text]		Return Before Taxes
Institutional Class \| Average Annual Return, Percent			10.35%	2.48%	6.69%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent			7.94%	0.57%	5.26%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent			6.83%	1.34%	4.91%

[1]

ICE BofA index data copyright 2025 ICE Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), which may be higher or lower than the actual transaction costs incurred by the Portfolio.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

12.48%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Jun. 30, 2022

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of additional indexes with similar investment universes of the Portfolio, or certain portions of the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(14.75%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

2040 Target Date Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DIMENSIONAL 2040 TARGET DATE RETIREMENT INCOME FUND			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
S&P Global BMI Index (net dividends) \| Average Annual Return, Label [Optional Text]		S&P Global BMI Index (net dividends)
S&P Global BMI Index (net dividends) \| Average Annual Return, Percent			21.96%	10.50%	11.28%
ICE BofA 1-3 Year Global Government Index (hedged to USD)1 \| Average Annual Return, Label [Optional Text]	^[1]	ICE BofA 1-3 Year Global Government Index (hedged to USD)1
ICE BofA 1-3 Year Global Government Index (hedged to USD)1 \| Average Annual Return, Percent			4.84%	2.23%	2.09%
Bloomberg U.S. TIPS Index \| Average Annual Return, Label [Optional Text]		Bloomberg U.S. TIPS Index
Bloomberg U.S. TIPS Index \| Average Annual Return, Percent			7.01%	1.12%	3.09%
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Label [Optional Text]		Bloomberg Global Aggregate Bond Index (hedged to USD)
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Percent			4.86%	0.34%	2.39%
Institutional Class \| Average Annual Return, Label [Optional Text]		Return Before Taxes
Institutional Class \| Average Annual Return, Percent			14.48%	7.68%	9.23%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent			12.72%	6.46%	8.27%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent			9.15%	5.67%	7.25%

[1]

ICE BofA index data copyright 2025 ICE Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), which may be higher or lower than the actual transaction costs incurred by the Portfolio.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

16.09%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of additional indexes with similar investment universes of the Portfolio, or certain portions of the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(21.68%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

2050 Target Date Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DIMENSIONAL 2050 TARGET DATE RETIREMENT INCOME FUND			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
S&P Global BMI Index (net dividends) \| Average Annual Return, Label [Optional Text]		S&P Global BMI Index (net dividends)
S&P Global BMI Index (net dividends) \| Average Annual Return, Percent			21.96%	10.50%	11.28%
ICE BofA 1-3 Year Global Government Index (hedged to USD)1 \| Average Annual Return, Label [Optional Text]	^[1]	ICE BofA 1-3 Year Global Government Index (hedged to USD)1
ICE BofA 1-3 Year Global Government Index (hedged to USD)1 \| Average Annual Return, Percent			4.84%	2.23%	2.09%
Bloomberg U.S. TIPS Index \| Average Annual Return, Label [Optional Text]		Bloomberg U.S. TIPS Index
Bloomberg U.S. TIPS Index \| Average Annual Return, Percent			7.01%	1.12%	3.09%
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Label [Optional Text]		Bloomberg Global Aggregate Bond Index (hedged to USD)
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Percent			4.86%	0.34%	2.39%
Institutional Class \| Average Annual Return, Label [Optional Text]		Return Before Taxes
Institutional Class \| Average Annual Return, Percent			19.64%	11.73%	11.81%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent			18.84%	10.90%	11.03%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent			12.03%	9.15%	9.57%

[1]

ICE BofA index data copyright 2025 ICE Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), which may be higher or lower than the actual transaction costs incurred by the Portfolio.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

19.23%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of additional indexes with similar investment universes of the Portfolio, or certain portions of the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2020

Lowest Quarterly Return

(22.31%)

Bar Chart and Performance Table [Heading]

Performance

Performance Past Does Not Indicate Future [Text]

The Portfolio’s past performance (before and after taxes) is not an indication of future results.

Bar Chart [Heading]

2060 Target Date Portfolio Institutional Class Shares —Total Returns

Performance Table Uses Highest Federal Rate

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance [Table]

Average Annual Total Returns - Prospectus Summary - DIMENSIONAL 2060 TARGET DATE RETIREMENT INCOME FUND			12 Months Ended	60 Months Ended	120 Months Ended
		Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2025	Dec. 31, 2025
S&P Global BMI Index (net dividends) \| Average Annual Return, Label [Optional Text]		S&P Global BMI Index (net dividends)
S&P Global BMI Index (net dividends) \| Average Annual Return, Percent			21.96%	10.50%	11.28%
ICE BofA 1-3 Year Global Government Index (hedged to USD)1 \| Average Annual Return, Label [Optional Text]	^[1]	ICE BofA 1-3 Year Global Government Index (hedged to USD)1
ICE BofA 1-3 Year Global Government Index (hedged to USD)1 \| Average Annual Return, Percent			4.84%	2.23%	2.09%
Bloomberg U.S. TIPS Index \| Average Annual Return, Label [Optional Text]		Bloomberg U.S. TIPS Index
Bloomberg U.S. TIPS Index \| Average Annual Return, Percent			7.01%	1.12%	3.09%
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Label [Optional Text]		Bloomberg Global Aggregate Bond Index (hedged to USD)
Bloomberg Global Aggregate Bond Index (hedged to USD) \| Average Annual Return, Percent			4.86%	0.34%	2.39%
Institutional Class \| Average Annual Return, Label [Optional Text]		Return Before Taxes
Institutional Class \| Average Annual Return, Percent			20.28%	11.85%	11.87%
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions
Institutional Class \| After Taxes on Distributions \| Average Annual Return, Percent			19.66%	11.09%	11.19%
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Label [Optional Text]		Return After Taxes on Distributions and Sale of Portfolio Shares
Institutional Class \| After Taxes on Distributions and Sales \| Average Annual Return, Percent			12.34%	9.26%	9.67%

[1]

ICE BofA index data copyright 2025 ICE Data Indices, LLC. Prior to July 1, 2022, index returns reflect no deduction for transaction costs. Effective July 1, 2022, index returns include transaction costs (as determined and calculated by the index provider), which may be higher or lower than the actual transaction costs incurred by the Portfolio.

Performance Availability Website Address [Text]

https://www.dimensional.com/us-en/funds

Prospectus [Line Items]

Highest Quarterly Return

19.33%

Lowest Quarterly Return, Label [Optional Text]

Lowest Quarter

Lowest Quarterly Return, Date

Mar. 31, 2020

Prospectus [Line Items]

Performance Narrative [Text Block]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year. The table illustrates how annualized returns for certain periods, both before and after taxes, compare with those of a broad measure of market performance. The table also includes the performance of additional indexes with similar investment universes of the Portfolio, or certain portions of the Portfolio. The Portfolio’s past performance (before and after taxes) is not an indication of future results. Updated performance information for the Portfolio can be obtained by visiting https://www.dimensional.com/us-en/funds.

The after-tax returns presented in the table for the Portfolio are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown in the table. In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Performance Information Illustrates Variability of Returns [Text]

The bar chart and table immediately following illustrate the variability of the Portfolio’s returns and are meant to provide some indication of the risks of investing in the Portfolio. The bar chart shows the changes in the Portfolio’s performance from year to year.

Performance Table Heading

Annualized Returns (%)

Performance Table Not Relevant to Tax Deferred

In addition, the after-tax returns shown are not relevant to investors who hold shares of the Portfolio through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Index No Deduction for Fees, Expenses, or Taxes [Text]

(reflects no deduction for fees, expenses or taxes on sales)

Highest Quarterly Return, Label [Optional Text]

Highest Quarter

Highest Quarterly Return, Date

Jun. 30, 2025

Lowest Quarterly Return

(14.04%)

Bar Chart and Performance Table [Heading]

Performance

Performance One Year or Less [Text]

Performance information is not available for the Portfolio because it has not yet completed a full calendar year of operations.