|First Trust ISE Global Wind Energy ETF|
|The investment 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 Global Wind Energy(TM) Index.
The fund will normally invest at least 90% of its net assets (plus the amount of any borrowings for investment purposes) in common stocks or in depositary receipts representing securities in the index. The index provides a benchmark for investors interested in tracking public companies throughout the world that are active in the wind energy industry based on analysis of the products and services offered by those companies. The fund is non-diversified.|
| ||FAN||Category Avg|
|Annual Report Expense Ratio (net)||0.60%||N/A|
|Annual Holdings Turnover||NaN||N/A|
|Total Net Assets||NaN||N/A|