First Trust Water ETF Investment Objectives and Goals - First Trust Water ETF |
Dec. 31, 2025 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | <span style="color:#000000;font-family:Arial;font-size:12.60pt;font-weight:bold;">First Trust Water ETF (FIW)</span> |
| Objective [Heading] | <span style="color:#000000;font-family:Arial;font-size:9.90pt;font-weight:bold;">Investment Objective</span> |
| Objective, Primary [Text Block] | The First Trust Water ETF (the “Fund”) seeks investment results that correspond generally to the price and yield (before the Fund’s fees and expenses) of an equity index called the ISE Clean Edge WaterTM Index (the “Index”). |