FT Vest Emerging Markets Buffer ETF - September Average Annual Total Returns |
12 Months Ended | 15 Months Ended | ||
|---|---|---|---|---|
May 31, 2026 |
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| MSCI Emerging Markets Index (reflects no deduction for fees, expenses or taxes)[Member] | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 32.90% | 33.57% | 22.83% | |
| FT Vest Emerging Markets Buffer ETF - September | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 20.94% | 14.29% | ||
| Performance Inception Date | Sep. 20, 2024 | |||
| FT Vest Emerging Markets Buffer ETF - September | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 20.94% | 14.29% | ||
| FT Vest Emerging Markets Buffer ETF - September | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 12.39% | 10.94% | ||