GMO Benchmark-Free Allocation Fund Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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 |
Dec. 31, 2015 |
|
| GMO Benchmark-Free Allocation Fund | Class III | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 4.27% | 13.40% | (2.26%) | 2.96% | (2.49%) | 11.62% | (5.35%) | 13.04% | 3.40% | (4.28%) |