First Trust Small Cap Value AlphaDEX Fund 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 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
| First Trust Small Cap Value AlphaDEX Fund | First Trust Small Cap Value AlphaDEX Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 3.16% | 22.91% | (14.02%) | 29.53% | 10.00% | 24.79% | (14.51%) | 7.34% | 30.15% | (16.67%) |