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 Managed Futures Strategy Fund | First Trust Managed Futures Strategy Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 4.04% | 8.17% | 0.13% | 5.52% | 3.88% | 4.87% | (4.54%) | (3.13%) | 1.84% | (4.29%) |