First Trust Mid Cap Core AlphaDEX Fund Expense Example, No Redemption - First Trust Mid Cap Core AlphaDEX Fund - First Trust Mid Cap Core AlphaDEX Fund |
Jul. 31, 2025
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 63 |
| Expense Example, No Redemption, 3 Years | 199 |
| Expense Example, No Redemption, 5 Years | 346 |
| Expense Example, No Redemption, 10 Years | $ 774 |