Annual Total Returns - Prospectus Summary - Institutional Class |
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|---|---|---|---|---|---|---|---|---|---|---|
| U.S. LARGE COMPANY PORTFOLIO | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 17.76% | 24.91% | 26.25% | (18.19%) | 28.60% | 18.40% | 31.42% | (4.43%) | 21.73% | 11.90% |
| U.S. LARGE COMPANY PORTFOLIO | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 17.76% | 24.91% | 26.25% | (18.19%) | 28.60% | 18.40% | 31.42% | (4.43%) | 21.73% | 11.90% |
| DFA INTERNATIONAL VALUE PORTFOLIO | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 45.21% | 6.88% | 17.79% | (3.48%) | 18.69% | (2.14%) | 15.67% | (17.49%) | 26.09% | 8.41% |
| DFA TWO-YEAR FIXED INCOME PORTFOLIO | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 4.34% | 5.33% | 4.92% | (3.28%) | (0.38%) | 0.57% | 2.65% | 1.78% | 0.92% | 0.90% |
| DFA TWO-YEAR GOVERNMENT PORTFOLIO | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 4.19% | 5.15% | 5.00% | (3.02%) | (0.51%) | 0.38% | 2.20% | 1.42% | 0.29% | 0.79% |
| GLOBAL EQUITY PORTFOLIO | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 20.17% | 15.71% | 20.29% | (14.70%) | 23.20% | 13.49% | 26.67% | (11.49%) | 22.15% | 12.93% |
| GLOBAL ALLOCATION 60/40 PORTFOLIO | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 14.06% | 11.32% | 14.53% | (12.08%) | 13.52% | 11.57% | 18.17% | (6.41%) | 14.04% | 9.16% |
| GLOBAL ALLOCATION 25/75 PORTFOLIO | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 8.67% | 7.43% | 8.90% | (8.05%) | 5.59% | 7.29% | 9.79% | (1.85%) | 6.64% | 4.97% |
| U.S. LARGE CAP VALUE PORTFOLIO III | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 16.43% | 12.86% | 11.57% | (5.69%) | 28.17% | (0.47%) | 25.61% | (11.55%) | 19.11% | 19.09% |
| DFA INTERNATIONAL VALUE PORTFOLIO III | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 45.26% | 6.86% | 17.85% | (3.37%) | 18.77% | (1.98%) | 15.84% | (17.29%) | 26.23% | 8.58% |
| EMERGING MARKETS PORTFOLIO II | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 33.59% | 6.86% | 13.10% | (16.88%) | 2.55% | 13.98% | 16.14% | (13.51%) | 36.73% | 12.37% |