Investment Objectives and Goals - FT Vest International Equity Moderate Buffer ETF - June |
Aug. 31, 2025 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | <span style="color:#000000;font-family:Arial;font-size:12.60pt;font-weight:bold;">FT Vest International Equity Moderate Buffer ETF </span><span style="color:#000000;font-family:Arial;font-size:12.60pt;font-weight:bold;margin-left:3.5pt;">– June (YJUN)</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 International Equity Moderate Buffer ETF – June (the “Fund”) is to seek to provide investors with returns (before fees and expenses) that match the price return of the iShares MSCI EAFE ETF (the "Underlying ETF"), up to a predetermined upside cap of 14.65% while providing a buffer (before fees and expenses) against the first 15% of Underlying ETF losses, over the period from June 22, 2026 through June 17, 2027. |