First Trust Long Duration Opportunities ETF Expense Example, No Redemption - First Trust Long Duration Opportunities ETF - First Trust Long Duration Opportunities ETF |
Oct. 31, 2025
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 50 |
| Expense Example, No Redemption, 3 Years | 157 |
| Expense Example, No Redemption, 5 Years | 274 |
| Expense Example, No Redemption, 10 Years | $ 616 |