Average Annual Total Returns |
12 Months Ended | 59 Months Ended | |
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| LBMA Gold Price (reflects no deduction for fees, expenses or taxes)[Member] | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 67.41% | 18.89% | |
| S&P 500® Index (reflects no deduction for fees, expenses or taxes)[Member] | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 17.88% | 14.00% | |
| FT Vest Gold Strategy Quarterly Buffer ETF | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 34.46% | 11.51% | |
| Performance Inception Date | Jan. 20, 2021 | ||
| FT Vest Gold Strategy Quarterly Buffer ETF | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 17.60% | 5.78% | |
| FT Vest Gold Strategy Quarterly Buffer ETF | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 20.40% | 6.39% |