First Trust Germany 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 Germany AlphaDEX Fund | First Trust Germany AlphaDEX Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 63.48% | 1.39% | 12.88% | (30.39%) | 5.74% | 17.90% | 21.06% | (25.40%) | 43.96% | 1.67% |