Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 115 Months Ended | |
|---|---|---|---|---|
Oct. 31, 2025 |
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 | 33.57% | 4.20% | 8.61% | |
| First Trust Active Factor Emerging Markets ETF | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 26.11% | 6.68% | 8.63% | |
| Performance Inception Date | Jun. 14, 2016 | |||
| First Trust Active Factor Emerging Markets ETF | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 25.07% | 4.97% | 7.12% | |
| First Trust Active Factor Emerging Markets ETF | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 15.43% | 4.30% | 6.14% |