Investment Objectives and Goals - FT Vest U.S. Equity Buffer & Digital Return ETF - April	Apr. 17, 2026
Prospectus [Line Items]
Risk/Return [Heading]	<span style="color:#000000;font-family:Arial;font-size:12.60pt;font-weight:bold;">FT Vest U.S. Equity Buffer & Digital Return ETF </span><span style="color:#000000;font-family:Arial;font-size:12.60pt;font-weight:bold;margin-left:3.5pt;">– April (DGAP)</span>
Objective [Heading]	<span style="color:#000000;font-family:Arial;font-size:9.90pt;font-weight:bold;">Investment Objective</span>
Objective, Primary [Text Block]	The investment objective of the FT Vest U.S. Equity Buffer & Digital Return ETF – April (the “Fund”) is to seek to provide investors with a buffer against the first 10% of losses on the price returns of the State Street® SPDR® S&P 500® ETF Trust (the “Underlying ETF”) while also providing a predetermined return level (“digital return”) that is 9.05% (before fees and expenses) if the Underlying ETF appreciates in price, remains unchanged or decreases in price by 10% or less, over the period from April 20, 2026 through April 16, 2027.