High Yield Municipal ETF Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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 |
|
| High Yield Municipal ETF | ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 4.31% | 5.50% | 4.80% | (15.33%) | 5.86% | 3.11% | 10.27% | 1.64% | 4.60% | 1.06% |