Expense Example, No Redemption - FT Vest Nasdaq-100 Buffer ETF - March - FT Vest Nasdaq-100 Buffer ETF - March |
Aug. 31, 2025
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 92 |
| Expense Example, No Redemption, 3 Years | 287 |
| Expense Example, No Redemption, 5 Years | 498 |
| Expense Example, No Redemption, 10 Years | $ 1,108 |