Expense Example, No Redemption - FT Vest Gold Strategy Quarterly Buffer ETF - FT Vest Gold Strategy Quarterly Buffer ETF |
Dec. 31, 2024
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 93 |
| Expense Example, No Redemption, 3 Years | 290 |
| Expense Example, No Redemption, 5 Years | 504 |
| Expense Example, No Redemption, 10 Years | $ 1,120 |