First Trust Emerging Markets AlphaDEX Fund 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 Emerging Markets AlphaDEX Fund | First Trust Emerging Markets AlphaDEX Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 26.35% | 3.97% | 10.87% | (14.33%) | 7.90% | (0.92%) | 19.81% | (15.48%) | 39.43% | 15.86% |