Expense Example, No Redemption - First Trust Active Factor Large Cap Growth ETF fka MMLG - First Trust Active Factor Large Cap Growth ETF |
Aug. 31, 2025
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 66 |
| Expense Example, No Redemption, 3 Years | 208 |
| Expense Example, No Redemption, 5 Years | 362 |
| Expense Example, No Redemption, 10 Years | $ 810 |