First Trust Core Investment Grade ETF Average Annual Total Returns |
12 Months Ended | 14 Months Ended | |
|---|---|---|---|
Jul. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2024 |
|
| Bloomberg US Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)[Member] | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 1.25% | 6.39% | |
| ICE BofA US Broad Market Index (reflects no deduction for fees, expenses or taxes)[Member] | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 1.49% | 6.45% | |
| First Trust Core Investment Grade ETF | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 2.32% | 7.57% | |
| Performance Inception Date | Nov. 07, 2023 | ||
| First Trust Core Investment Grade ETF | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 0.21% | 5.50% | |
| First Trust Core Investment Grade ETF | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 1.36% | 4.91% |