Average Annual Total Returns |
12 Months Ended | 14 Months Ended | |
|---|---|---|---|
May 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| S&P 500® Index (reflects no deduction for fees, expenses or taxes)[Member] | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 17.88% | 15.19% | |
| FT Vest U.S. Equity Max Buffer ETF - October | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 6.84% | 6.14% | |
| Performance Inception Date | Oct. 18, 2024 | ||
| FT Vest U.S. Equity Max Buffer ETF - October | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 6.84% | 6.14% | |
| FT Vest U.S. Equity Max Buffer ETF - October | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 4.05% | 4.69% |