First Trust Natural Gas 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 |
|
| First Trust Natural Gas ETF | First Trust Natural Gas ETF | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | (2.16%) | 3.98% | 2.55% | 47.27% | 98.69% | (23.22%) | (15.87%) | (34.77%) | (11.53%) | 19.48% |