First Trust Municipal High Income ETF 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 |
|
| First Trust Municipal High Income ETF | First Trust Municipal High Income ETF | |||||||
| Prospectus [Line Items] | |||||||
| Annual Return [Percent] | 5.58% | 7.26% | (14.66%) | 7.60% | 4.01% | 10.58% | 2.04% |