Shareholder Report
|
6 Months Ended |
|
Apr. 30, 2026
USD ($)
$ / shares
|
|---|
| Shareholder Report [Line Items] |
|
|
| Document Type |
N-CSRS
|
|
| Amendment Flag |
false
|
|
| Registrant Name |
THE DFA
INVESTMENT TRUST COMPANY
|
|
| Entity Central Index Key |
0000896162
|
|
| Entity Investment Company Type |
N-1A
|
|
| Document Period End Date |
Apr. 30, 2026
|
|
| Shareholder Report Annual or Semi-Annual |
semi-annual shareholder report
|
|
| The Emerging Markets Series |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
The Emerging Markets Series
|
|
| Class Name |
The Emerging Markets Series
|
|
| No Trading Symbol |
true
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about The Emerging Markets Series (the “Series”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Series at https://www.dimensional.com/us-en/document-center. You can also request this information at no cost by contacting us collect at (512) 306-7400.
|
|
| Additional Information Phone Number |
(512) 306-7400
|
|
| Additional Information Website |
https://www.dimensional.com/us-en/document-center
|
|
| Expenses [Text Block] |
WHAT WERE THE Series COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
|
|
|
|
Series Name
|
Costs of a $10,000 investment
|
Costs paid as a percentage of a $10,000 investment
|
|
The Emerging Markets Series
|
$8
|
0.14%1
|
|
[1] |
| Expenses Paid, Amount |
$ 8
|
|
| Expense Ratio, Percent |
0.14%
|
[1] |
| Net Assets |
$ 8,033,082,739
|
|
| Holdings Count | $ / shares |
2,154
|
|
| Investment Company Portfolio Turnover |
6.00%
|
|
| Additional Fund Statistics [Text Block] |
KEY Series STATISTICS (as of April 30, 2026)
|
|
|
Net Assets
|
$8,033,082,739
|
|
Number of Holdings
|
2,154
|
|
Portfolio Turnover Rate
|
6%
|
|
|
| Holdings [Text Block] |
WHAT DID THE Series INVEST IN? (as of April 30, 2026)
|
|
|
Top 10 Holdings
(% of Total Investments) †
|
|
|
Taiwan Semiconductor Manufacturing Co. Ltd.
|
12.4%
|
|
Samsung Electronics Co. Ltd.
|
5.9%
|
|
SK Hynix, Inc.
|
3.9%
|
|
Tencent Holdings Ltd.
|
2.1%
|
|
Delta Electronics, Inc.
|
0.8%
|
|
Alibaba Group Holding Ltd. (9988 HK)
|
0.8%
|
|
Alibaba Group Holding Ltd. (BABA US)
|
0.8%
|
|
Petroleo Brasileiro SA - Petrobras
|
0.8%
|
|
MediaTek, Inc.
|
0.8%
|
|
China Construction Bank Corp. H
|
0.7%
|
|
|
|
Top Countries
(% of Total Investments) †
|
|
|
Taiwan
|
26.7%
|
|
China
|
20.7%
|
|
South Korea
|
19.0%
|
|
India
|
12.9%
|
|
Brazil
|
4.1%
|
|
South Africa
|
3.0%
|
|
Saudi Arabia
|
2.5%
|
|
Mexico
|
1.7%
|
|
Malaysia
|
1.3%
|
|
United Arab Emirates
|
1.3%
|
|
[2] |
| Updated Prospectus Web Address |
https://www.dimensional.com/us-en/document-center
|
|
| The U.S. Large Cap Value Series |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
The U.S. Large Cap Value Series
|
|
| Class Name |
The U.S. Large Cap Value Series
|
|
| No Trading Symbol |
true
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about The U.S. Large Cap Value Series (the “Series”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Series at https://www.dimensional.com/us-en/document-center. You can also request this information at no cost by contacting us collect at (512) 306-7400.
|
|
| Additional Information Phone Number |
(512) 306-7400
|
|
| Additional Information Website |
https://www.dimensional.com/us-en/document-center
|
|
| Expenses [Text Block] |
WHAT WERE THE Series COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
|
|
|
|
Series Name
|
Costs of a $10,000 investment
|
Costs paid as a percentage of a $10,000 investment
|
|
The U.S. Large Cap Value Series
|
$6
|
0.11%1
|
|
[3] |
| Expenses Paid, Amount |
$ 6
|
|
| Expense Ratio, Percent |
0.11%
|
[3] |
| Net Assets |
$ 29,427,247,507
|
|
| Holdings Count | $ / shares |
316
|
|
| Investment Company Portfolio Turnover |
6.00%
|
|
| Additional Fund Statistics [Text Block] |
KEY Series STATISTICS (as of April 30, 2026)
|
|
|
Net Assets
|
$29,427,247,507
|
|
Number of Holdings
|
316
|
|
Portfolio Turnover Rate
|
6%
|
|
|
| Holdings [Text Block] |
WHAT DID THE Series INVEST IN? (as of April 30, 2026)
|
|
|
Top 10 Holdings
(% of Total Investments) †
|
|
|
JPMorgan Chase & Co.
|
4.5%
|
|
Amazon.com, Inc.
|
3.5%
|
|
Exxon Mobil Corp.
|
3.3%
|
|
Micron Technology, Inc.
|
2.6%
|
|
Johnson & Johnson
|
2.5%
|
|
Cisco Systems, Inc.
|
2.5%
|
|
Chevron Corp.
|
2.1%
|
|
Berkshire Hathaway, Inc. B
|
1.8%
|
|
Goldman Sachs Group, Inc.
|
1.3%
|
|
UnitedHealth Group, Inc.
|
1.2%
|
|
|
|
Sector Allocation
(% of Total Investments) †
|
|
|
Financials
|
22.2%
|
|
Industrials
|
14.3%
|
|
Energy
|
14.0%
|
|
Health Care
|
13.4%
|
|
Information Technology
|
12.9%
|
|
Consumer Discretionary
|
7.3%
|
|
Materials
|
6.6%
|
|
Communication Services
|
4.8%
|
|
Consumer Staples
|
4.1%
|
|
Real Estate
|
0.4%
|
|
[4] |
| Updated Prospectus Web Address |
https://www.dimensional.com/us-en/document-center
|
|
| The DFA International Value Series |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
The DFA International Value Series
|
|
| Class Name |
The DFA International Value Series
|
|
| No Trading Symbol |
true
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about The DFA International Value Series (the “Series”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Series at https://www.dimensional.com/us-en/document-center. You can also request this information at no cost by contacting us collect at (512) 306-7400.
|
|
| Additional Information Phone Number |
(512) 306-7400
|
|
| Additional Information Website |
https://www.dimensional.com/us-en/document-center
|
|
| Expenses [Text Block] |
WHAT WERE THE Series COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
|
|
|
|
Series Name
|
Costs of a $10,000 investment
|
Costs paid as a percentage of a $10,000 investment
|
|
The DFA International Value Series
|
$11
|
0.21%1
|
|
[5] |
| Expenses Paid, Amount |
$ 11
|
|
| Expense Ratio, Percent |
0.21%
|
[5] |
| Net Assets |
$ 18,416,231,762
|
|
| Holdings Count | $ / shares |
526
|
|
| Investment Company Portfolio Turnover |
3.00%
|
|
| Additional Fund Statistics [Text Block] |
KEY Series STATISTICS (as of April 30, 2026)
|
|
|
Net Assets
|
$18,416,231,762
|
|
Number of Holdings
|
526
|
|
Portfolio Turnover Rate
|
3%
|
|
|
| Holdings [Text Block] |
WHAT DID THE Series INVEST IN? (as of April 30, 2026)
|
|
|
Top 10 Holdings
(% of Total Investments) †
|
|
|
Shell PLC
|
4.2%
|
|
TotalEnergies SE
|
3.0%
|
|
Banco Santander SA
|
2.2%
|
|
Toronto-Dominion Bank
|
1.4%
|
|
Barrick Mining Corp.
|
1.3%
|
|
Toyota Motor Corp.
|
1.3%
|
|
Zurich Insurance Group AG
|
1.2%
|
|
Engie SA
|
1.2%
|
|
BASF SE
|
1.1%
|
|
Bank of Montreal
|
1.1%
|
|
|
|
Top Countries
(% of Total Investments) †
|
|
|
Japan
|
21.2%
|
|
United Kingdom
|
13.4%
|
|
Canada
|
12.3%
|
|
France
|
10.1%
|
|
Switzerland
|
8.2%
|
|
Germany
|
8.2%
|
|
Australia
|
5.9%
|
|
Netherlands
|
4.1%
|
|
Spain
|
3.7%
|
|
Sweden
|
2.2%
|
|
[6] |
| Updated Prospectus Web Address |
https://www.dimensional.com/us-en/document-center
|
|
| The Emerging Markets Small Cap Series |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
The Emerging Markets Small Cap Series
|
|
| Class Name |
The Emerging Markets Small Cap Series
|
|
| No Trading Symbol |
true
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about The Emerging Markets Small Cap Series (the “Series”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Series at https://www.dimensional.com/us-en/document-center. You can also request this information at no cost by contacting us collect at (512) 306-7400.
|
|
| Additional Information Phone Number |
(512) 306-7400
|
|
| Additional Information Website |
https://www.dimensional.com/us-en/document-center
|
|
| Expenses [Text Block] |
WHAT WERE THE Series COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
|
|
|
|
Series Name
|
Costs of a $10,000 investment
|
Costs paid as a percentage of a $10,000 investment
|
|
The Emerging Markets Small Cap Series
|
$14
|
0.26%1
|
|
[7] |
| Expenses Paid, Amount |
$ 14
|
|
| Expense Ratio, Percent |
0.26%
|
[7] |
| Net Assets |
$ 3,898,009,308
|
|
| Holdings Count | $ / shares |
4,711
|
|
| Investment Company Portfolio Turnover |
5.00%
|
|
| Additional Fund Statistics [Text Block] |
KEY Series STATISTICS (as of April 30, 2026)
|
|
|
Net Assets
|
$3,898,009,308
|
|
Number of Holdings
|
4,711
|
|
Portfolio Turnover Rate
|
5%
|
|
|
| Holdings [Text Block] |
WHAT DID THE Series INVEST IN? (as of April 30, 2026)
|
|
|
Top 10 Holdings
(% of Total Investments) †
|
|
|
Macronix International Co. Ltd.
|
0.6%
|
|
3SBio, Inc.
|
0.4%
|
|
Grupa Kety SA
|
0.4%
|
|
Kingboard Laminates Holdings Ltd.
|
0.4%
|
|
China Gold International Resources Corp. Ltd.
|
0.4%
|
|
GDS Holdings Ltd. A
|
0.4%
|
|
Industrias CH SAB de CV
|
0.4%
|
|
Li Ning Co. Ltd.
|
0.4%
|
|
Harmony Gold Mining Co. Ltd.
|
0.4%
|
|
ADATA Technology Co. Ltd.
|
0.3%
|
|
|
|
Top Countries
(% of Total Investments) †
|
|
|
China
|
26.8%
|
|
Taiwan
|
21.0%
|
|
India
|
16.2%
|
|
South Korea
|
12.9%
|
|
Brazil
|
3.5%
|
|
South Africa
|
2.9%
|
|
Mexico
|
2.9%
|
|
Saudi Arabia
|
2.3%
|
|
Poland
|
1.8%
|
|
Malaysia
|
1.4%
|
|
[8] |
| Updated Prospectus Web Address |
https://www.dimensional.com/us-en/document-center
|
|
| The Japanese Small Company Series |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
The Japanese Small Company Series
|
|
| Class Name |
The Japanese Small Company Series
|
|
| No Trading Symbol |
true
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about The Japanese Small Company Series (the “Series”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Series at https://www.dimensional.com/us-en/document-center. You can also request this information at no cost by contacting us collect at (512) 306-7400.
|
|
| Additional Information Phone Number |
(512) 306-7400
|
|
| Additional Information Website |
https://www.dimensional.com/us-en/document-center
|
|
| Expenses [Text Block] |
WHAT WERE THE Series COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
|
|
|
|
Series Name
|
Costs of a $10,000 investment
|
Costs paid as a percentage of a $10,000 investment
|
|
The Japanese Small Company Series
|
$6
|
0.11%1
|
|
[9] |
| Expenses Paid, Amount |
$ 6
|
|
| Expense Ratio, Percent |
0.11%
|
[9] |
| Net Assets |
$ 3,742,274,568
|
|
| Holdings Count | $ / shares |
1,583
|
|
| Investment Company Portfolio Turnover |
12.00%
|
|
| Additional Fund Statistics [Text Block] |
KEY Series STATISTICS (as of April 30, 2026)
|
|
|
Net Assets
|
$3,742,274,568
|
|
Number of Holdings
|
1,583
|
|
Portfolio Turnover Rate
|
12%
|
|
|
| Holdings [Text Block] |
WHAT DID THE Series INVEST IN? (as of April 30, 2026)
|
|
|
Top 10 Holdings
(% of Total Investments) †
|
|
|
Meiko Electronics Co. Ltd.
|
0.7%
|
|
Taiyo Yuden Co. Ltd.
|
0.6%
|
|
SUMCO Corp.
|
0.5%
|
|
Mitsubishi Materials Corp.
|
0.5%
|
|
Nippon Electric Glass Co. Ltd.
|
0.5%
|
|
Nikkon Holdings Co. Ltd.
|
0.5%
|
|
GS Yuasa Corp.
|
0.5%
|
|
JGC Holdings Corp.
|
0.5%
|
|
EXEO Group, Inc.
|
0.5%
|
|
Penta-Ocean Construction Co. Ltd.
|
0.5%
|
|
|
|
Sector Allocation
(% of Total Investments) †
|
|
|
Industrials
|
30.2%
|
|
Consumer Discretionary
|
15.1%
|
|
Information Technology
|
13.4%
|
|
Materials
|
13.0%
|
|
Financials
|
11.7%
|
|
Consumer Staples
|
7.4%
|
|
Health Care
|
3.3%
|
|
Communication Services
|
2.2%
|
|
Utilities
|
1.4%
|
|
Real Estate
|
1.3%
|
|
Energy
|
1.0%
|
|
[10] |
| Updated Prospectus Web Address |
https://www.dimensional.com/us-en/document-center
|
|
| The United Kingdom Small Company Series |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
The United Kingdom Small Company Series
|
|
| Class Name |
The United Kingdom Small Company Series
|
|
| No Trading Symbol |
true
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about The United Kingdom Small Company Series (the “Series”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Series at https://www.dimensional.com/us-en/document-center. You can also request this information at no cost by contacting us collect at (512) 306-7400.
|
|
| Additional Information Phone Number |
(512) 306-7400
|
|
| Additional Information Website |
https://www.dimensional.com/us-en/document-center
|
|
| Expenses [Text Block] |
WHAT WERE THE Series COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
|
|
|
|
Series Name
|
Costs of a $10,000 investment
|
Costs paid as a percentage of a $10,000 investment
|
|
The United Kingdom Small Company Series
|
$6
|
0.11%1
|
|
[11] |
| Expenses Paid, Amount |
$ 6
|
|
| Expense Ratio, Percent |
0.11%
|
[11] |
| Net Assets |
$ 1,764,921,124
|
|
| Holdings Count | $ / shares |
295
|
|
| Investment Company Portfolio Turnover |
7.00%
|
|
| Additional Fund Statistics [Text Block] |
KEY Series STATISTICS (as of April 30, 2026)
|
|
|
Net Assets
|
$1,764,921,124
|
|
Number of Holdings
|
295
|
|
Portfolio Turnover Rate
|
7%
|
|
|
| Holdings [Text Block] |
WHAT DID THE Series INVEST IN? (as of April 30, 2026)
|
|
|
Top 10 Holdings
(% of Total Investments) †
|
|
|
Lion Finance Group PLC
|
2.2%
|
|
IG Group Holdings PLC
|
2.0%
|
|
Games Workshop Group PLC
|
2.0%
|
|
Beazley PLC
|
1.9%
|
|
Hiscox Ltd.
|
1.9%
|
|
Plus500 Ltd.
|
1.8%
|
|
Babcock International Group PLC
|
1.6%
|
|
Aberdeen Group PLC
|
1.5%
|
|
Balfour Beatty PLC
|
1.5%
|
|
Howden Joinery Group PLC
|
1.5%
|
|
|
|
Sector Allocation
(% of Total Investments) †
|
|
|
Financials
|
24.4%
|
|
Industrials
|
22.9%
|
|
Consumer Discretionary
|
20.9%
|
|
Materials
|
9.0%
|
|
Communication Services
|
5.3%
|
|
Consumer Staples
|
4.1%
|
|
Energy
|
3.9%
|
|
Information Technology
|
3.2%
|
|
Health Care
|
2.5%
|
|
Utilities
|
2.5%
|
|
Real Estate
|
1.3%
|
|
[12] |
| Updated Prospectus Web Address |
https://www.dimensional.com/us-en/document-center
|
|
| The Continental Small Company Series |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
The Continental Small Company Series
|
|
| Class Name |
The Continental Small Company Series
|
|
| No Trading Symbol |
true
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about The Continental Small Company Series (the “Series”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Series at https://www.dimensional.com/us-en/document-center. You can also request this information at no cost by contacting us collect at (512) 306-7400.
|
|
| Additional Information Phone Number |
(512) 306-7400
|
|
| Additional Information Website |
https://www.dimensional.com/us-en/document-center
|
|
| Expenses [Text Block] |
WHAT WERE THE Series COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
|
|
|
|
Series Name
|
Costs of a $10,000 investment
|
Costs paid as a percentage of a $10,000 investment
|
|
The Continental Small Company Series
|
$6
|
0.11%1
|
|
[13] |
| Expenses Paid, Amount |
$ 6
|
|
| Expense Ratio, Percent |
0.11%
|
[13] |
| Net Assets |
$ 6,615,555,511
|
|
| Holdings Count | $ / shares |
1,174
|
|
| Investment Company Portfolio Turnover |
10.00%
|
|
| Additional Fund Statistics [Text Block] |
KEY Series STATISTICS (as of April 30, 2026)
|
|
|
Net Assets
|
$6,615,555,511
|
|
Number of Holdings
|
1,174
|
|
Portfolio Turnover Rate
|
10%
|
|
|
| Holdings [Text Block] |
WHAT DID THE Series INVEST IN? (as of April 30, 2026)
|
|
|
Top 10 Holdings
(% of Total Investments) †
|
|
|
BAWAG Group AG
|
1.2%
|
|
PSP Swiss Property AG
|
0.9%
|
|
Swiss Prime Site AG
|
0.9%
|
|
Rexel SA
|
0.8%
|
|
Helvetia Baloise Holding AG
|
0.8%
|
|
Ackermans & van Haaren NV
|
0.8%
|
|
Orion OYJ B
|
0.7%
|
|
Belimo Holding AG
|
0.7%
|
|
Ringkjoebing Landbobank AS
|
0.7%
|
|
Gaztransport Et Technigaz SA
|
0.7%
|
|
|
|
Top Countries
(% of Total Investments) †
|
|
|
Switzerland
|
19.2%
|
|
Germany
|
15.8%
|
|
France
|
13.1%
|
|
Italy
|
9.1%
|
|
Sweden
|
6.0%
|
|
Denmark
|
6.0%
|
|
Finland
|
5.9%
|
|
Spain
|
5.7%
|
|
Netherlands
|
5.2%
|
|
Austria
|
4.1%
|
|
[14] |
| Updated Prospectus Web Address |
https://www.dimensional.com/us-en/document-center
|
|
| The Asia Pacific Small Company Series |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
The Asia Pacific Small Company Series
|
|
| Class Name |
The Asia Pacific Small Company Series
|
|
| No Trading Symbol |
true
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about The Asia Pacific Small Company Series (the “Series”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Series at https://www.dimensional.com/us-en/document-center. You can also request this information at no cost by contacting us collect at (512) 306-7400.
|
|
| Additional Information Phone Number |
(512) 306-7400
|
|
| Additional Information Website |
https://www.dimensional.com/us-en/document-center
|
|
| Expenses [Text Block] |
WHAT WERE THE Series COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
|
|
|
|
Series Name
|
Costs of a $10,000 investment
|
Costs paid as a percentage of a $10,000 investment
|
|
The Asia Pacific Small Company Series
|
$6
|
0.12%1
|
|
[15] |
| Expenses Paid, Amount |
$ 6
|
|
| Expense Ratio, Percent |
0.12%
|
[15] |
| Net Assets |
$ 1,742,624,583
|
|
| Holdings Count | $ / shares |
661
|
|
| Investment Company Portfolio Turnover |
13.00%
|
|
| Additional Fund Statistics [Text Block] |
KEY Series STATISTICS (as of April 30, 2026)
|
|
|
Net Assets
|
$1,742,624,583
|
|
Number of Holdings
|
661
|
|
Portfolio Turnover Rate
|
13%
|
|
|
| Holdings [Text Block] |
WHAT DID THE Series INVEST IN? (as of April 30, 2026)
|
|
|
Top 10 Holdings
(% of Total Investments) †
|
|
|
ASMPT Ltd.
|
1.7%
|
|
Dyno Nobel Ltd.
|
1.3%
|
|
Regis Resources Ltd.
|
1.3%
|
|
Downer EDI Ltd.
|
1.2%
|
|
Paladin Energy Ltd.
|
1.1%
|
|
Vault Minerals Ltd.
|
1.1%
|
|
Seatrium Ltd.
|
1.1%
|
|
Ventia Services Group Pty. Ltd.
|
1.1%
|
|
Cleanaway Waste Management Ltd.
|
1.1%
|
|
Bank of Queensland Ltd.
|
1.0%
|
|
|
|
Top Countries
(% of Total Investments) †
|
|
|
Australia
|
64.1%
|
|
Hong Kong
|
18.9%
|
|
Singapore
|
14.6%
|
|
New Zealand
|
2.4%
|
|
[16] |
| Updated Prospectus Web Address |
https://www.dimensional.com/us-en/document-center
|
|
| The Canadian Small Company Series |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
The Canadian Small Company Series
|
|
| Class Name |
The Canadian Small Company Series
|
|
| No Trading Symbol |
true
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about The Canadian Small Company Series (the “Series”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Series at https://www.dimensional.com/us-en/document-center. You can also request this information at no cost by contacting us collect at (512) 306-7400.
|
|
| Additional Information Phone Number |
(512) 306-7400
|
|
| Additional Information Website |
https://www.dimensional.com/us-en/document-center
|
|
| Expenses [Text Block] |
WHAT WERE THE Series COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
|
|
|
|
Series Name
|
Costs of a $10,000 investment
|
Costs paid as a percentage of a $10,000 investment
|
|
The Canadian Small Company Series
|
$6
|
0.11%1
|
|
[17] |
| Expenses Paid, Amount |
$ 6
|
|
| Expense Ratio, Percent |
0.11%
|
[17] |
| Net Assets |
$ 2,337,755,121
|
|
| Holdings Count | $ / shares |
323
|
|
| Investment Company Portfolio Turnover |
13.00%
|
|
| Additional Fund Statistics [Text Block] |
KEY Series STATISTICS (as of April 30, 2026)
|
|
|
Net Assets
|
$2,337,755,121
|
|
Number of Holdings
|
323
|
|
Portfolio Turnover Rate
|
13%
|
|
|
| Holdings [Text Block] |
WHAT DID THE Series INVEST IN? (as of April 30, 2026)
|
|
|
Top 10 Holdings
(% of Total Investments) †
|
|
|
Celestica, Inc.
|
3.6%
|
|
Finning International, Inc.
|
2.3%
|
|
Aritzia, Inc.
|
2.0%
|
|
OceanaGold Corp.
|
1.7%
|
|
IAMGOLD Corp.
|
1.6%
|
|
Toromont Industries Ltd.
|
1.5%
|
|
DPM Metals, Inc.
|
1.5%
|
|
Capital Power Corp.
|
1.5%
|
|
Hudbay Minerals, Inc.
|
1.3%
|
|
Lundin Gold, Inc.
|
1.3%
|
|
|
|
Sector Allocation
(% of Total Investments) †
|
|
|
Materials
|
30.7%
|
|
Energy
|
20.6%
|
|
Industrials
|
14.5%
|
|
Utilities
|
8.0%
|
|
Information Technology
|
6.7%
|
|
Consumer Discretionary
|
6.2%
|
|
Financials
|
6.1%
|
|
Consumer Staples
|
2.7%
|
|
Health Care
|
1.7%
|
|
Communication Services
|
1.4%
|
|
Real Estate
|
1.4%
|
|
[18] |
| Updated Prospectus Web Address |
https://www.dimensional.com/us-en/document-center
|
|
| The DFA Short Term Investment Fund |
|
|
| Shareholder Report [Line Items] |
|
|
| Fund Name |
The DFA Short Term Investment Fund
|
|
| Class Name |
The DFA Short Term Investment Fund
|
|
| No Trading Symbol |
true
|
|
| Annual or Semi-Annual Statement [Text Block] |
This semi-annual shareholder report contains important information about the The DFA Short Term Investment Fund (the “Fund”) for the period of November 1, 2025 to April 30, 2026.
|
|
| Additional Information [Text Block] |
You can find additional information about the Fund at https://www.dimensional.com/us-en/document-center. You can also request this information at no cost by contacting us collect at (512) 306-7400.
|
|
| Additional Information Phone Number |
(512) 306-7400
|
|
| Additional Information Website |
https://www.dimensional.com/us-en/document-center
|
|
| Expenses [Text Block] |
WHAT WERE THE Fund COSTS FOR THE LAST SIX MONTHS? (based on a hypothetical $10,000 investment)
|
|
|
|
Fund Name
|
Costs of a $10,000 investment
|
Costs paid as a percentage of a $10,000 investment
|
|
The DFA Short Term Investment Fund
|
$3
|
0.06%1
|
|
[19] |
| Expenses Paid, Amount |
$ 3
|
|
| Expense Ratio, Percent |
0.06%
|
[19] |
| Net Assets |
$ 23,252,307,014
|
|
| Holdings Count | $ / shares |
173
|
|
| Investment Company Portfolio Turnover |
94.00%
|
|
| Additional Fund Statistics [Text Block] |
KEY Fund STATISTICS (as of April 30, 2026)
|
|
|
Net Assets
|
$23,252,307,014
|
|
Number of Holdings
|
173
|
|
Portfolio Turnover Rate
|
94%
|
|
|
| Holdings [Text Block] |
WHAT DID THE Fund INVEST IN? (as of April 30, 2026)
|
|
|
Security Type
(% of Total Investments) †
|
|
|
Commercial Paper
|
55.2%
|
|
Yankee Certificate of Deposit
|
19.5%
|
|
U.S. Treasury Obligation
|
12.0%
|
|
Repurchase Agreement
|
9.6%
|
|
U.S. Government Agency Obligation
|
3.7%
|
|
|
|
Stated Maturity Allocation
(% of Total Investments)
|
|
|
Less than 1 Year
|
97.4%
|
|
1 to 3 Years
|
2.6%
|
|
[20] |
| Updated Prospectus Web Address |
https://www.dimensional.com/us-en/document-center
|
|
|
|