Annual Total Returns |
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Parametric Tax-Managed Emerging Markets Fund | Parametric Tax-Managed Emerging Markets Fund | I | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 28.28% | 4.92% | 10.65% | (12.24%) | 4.61% | 4.46% | 12.50% | (13.20%) | 27.09% | 12.10% |