v3.25.1
Annual Total Returns
Jan. 31, 2025
Prospectus #1 | Parametric TABS Short-Term Municipal Bond Fund  
Bar Chart Table:  
Annual Return Caption Calendar year-by-year total return
Prospectus #1 | Parametric TABS Short-Term Municipal Bond Fund | Class A  
Bar Chart Table:  
2015 1.46%
2016 (0.73%)
2017 2.06%
2018 0.43%
2019 3.99%
2020 5.68%
2021 (0.34%)
2022 (5.00%)
2023 4.77%
2024 1.33%
Prospectus #1 | Parametric TABS Intermediate-Term Municipal Bond Fund  
Bar Chart Table:  
Annual Return Caption Calendar year-by-year total return
Prospectus #1 | Parametric TABS Intermediate-Term Municipal Bond Fund | Class A  
Bar Chart Table:  
2015 3.08%
2016 (0.16%)
2017 4.45%
2018 0.06%
2019 6.11%
2020 6.03%
2021 (0.13%)
2022 (6.86%)
2023 7.16%
2024 0.49%
Prospectus #2 | Parametric TABS 1-to-10 Year Laddered Municipal Bond Fund  
Bar Chart Table:  
Annual Return Caption Calendar year-by-year total return
Prospectus #2 | Parametric TABS 1-to-10 Year Laddered Municipal Bond Fund | Class A  
Bar Chart Table:  
2016 (0.21%)
2017 3.04%
2018 0.73%
2019 4.88%
2020 4.56%
2021 0.92%
2022 (4.60%)
2023 4.95%
2024 1.51%
Prospectus #2 | Parametric TABS 5-to-15 Year Laddered Municipal Bond Fund  
Bar Chart Table:  
Annual Return Caption Calendar year-by-year total return
Prospectus #2 | Parametric TABS 5-to-15 Year Laddered Municipal Bond Fund | Class A  
Bar Chart Table:  
2015 4.45%
2016 (0.08%)
2017 5.85%
2018 0.13%
2019 6.61%
2020 5.46%
2021 0.86%
2022 (7.62%)
2023 7.04%
2024 0.85%
Prospectus #3 | Eaton Vance High Yield Municipal Income Fund  
Bar Chart Table:  
Annual Return Caption Calendar year-by-year total return
Prospectus #3 | Eaton Vance High Yield Municipal Income Fund | Class A  
Bar Chart Table:  
2015 4.81%
2016 1.14%
2017 7.95%
2018 1.45%
2019 9.32%
2020 3.89%
2021 3.87%
2022 (12.26%)
2023 7.71%
2024 4.78%
Prospectus #4 | Eaton Vance High Yield Municipal Income Fund  
Bar Chart Table:  
Annual Return Caption Calendar year-by-year total return
Prospectus #4 | Eaton Vance High Yield Municipal Income Fund | Class W  
Bar Chart Table:  
2015 5.07%
2016 1.40%
2017 8.22%
2018 1.70%
2019 9.58%
2020 4.14%
2021 4.21%
2022 (11.73%)
2023 8.62%
2024 5.39%