v3.26.1
Expense Example, No Redemption - FT Vest U.S. Equity Dual Directional Buffer ETF - May - FT Vest U.S. Equity Dual Directional Buffer ETF - May
May 05, 2026
USD ($)
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 87
Expense Example, No Redemption, 3 Years $ 271