First Trust SSI Strategic Convertible Securities ETF Expense Example, No Redemption - First Trust SSI Strategic Convertible Securities ETF - First Trust SSI Strategic Convertible Securities ETF |
Oct. 31, 2025
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 97 |
| Expense Example, No Redemption, 3 Years | 303 |
| Expense Example, No Redemption, 5 Years | 525 |
| Expense Example, No Redemption, 10 Years | $ 1,166 |