First Trust Dow Jones Select MicroCap Index Fund Shareholder Fees |
Dec. 31, 2025 |
|---|---|
| First Trust Dow Jones Select MicroCap Index Fund | First Trust Dow Jones Select MicroCap Index Fund | |
| Prospectus [Line Items] | |
| Maximum Sales Charge Imposed on Purchases (as a percentage of Offering Price) | 0.00% |