First Trust Short Duration High Income Fund Expense Example, No Redemption - First Trust Short Duration High Income Fund |
Oct. 31, 2025
USD ($)
|
|---|---|
| C | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 473 |
| Expense Example, No Redemption, 3 Years | 804 |
| Expense Example, No Redemption, 5 Years | 1,159 |
| Expense Example, No Redemption, 10 Years | 2,155 |
| I | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 203 |
| Expense Example, No Redemption, 3 Years | 700 |
| Expense Example, No Redemption, 5 Years | 1,224 |
| Expense Example, No Redemption, 10 Years | 2,659 |
| A | |
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | 102 |
| Expense Example, No Redemption, 3 Years | 393 |
| Expense Example, No Redemption, 5 Years | 706 |
| Expense Example, No Redemption, 10 Years | $ 1,593 |