First Trust Long-Short Equity ETF Expense Example, No Redemption - First Trust Long-Short Equity ETF - First Trust Long-Short Equity ETF |
Oct. 31, 2025
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 140 |
| Expense Example, No Redemption, 3 Years | 437 |
| Expense Example, No Redemption, 5 Years | 755 |
| Expense Example, No Redemption, 10 Years | $ 1,657 |