GMO U.S. Small Cap Value Fund Average Annual Total Returns - Class VI |
12 Months Ended | 60 Months Ended | 78 Months Ended | 120 Months Ended | |
|---|---|---|---|---|---|
Feb. 28, 2026 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 15.26% | 12.91% | 11.60% | ||
| Performance Inception Date | Jul. 02, 2019 | ||||
| After Taxes on Distributions | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 14.47% | 9.36% | 8.79% | ||
| After Taxes on Distributions and Sales | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 9.59% | 8.84% | 8.18% | ||
| S&P SmallCap 600 Value Index (returns reflect no deduction for fees, expenses, or taxes)[Member] | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 6.70% | 8.96% | 8.84% | ||
| S&P Composite 1500 Index (returns reflect no deduction for fees, expenses, or taxes)[Member] | |||||
| Prospectus [Line Items] | |||||
| Average Annual Return, Percent | 17.02% | 13.96% | 15.01% |