|First Trust ISE Global Platinum 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 Platinum(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. First Trust Advisors L.P. ("First Trust" or the "Advisor") seeks to match the performance of the index (before the fund's fees and expenses). The fund is non-diversified.|
| ||PLTM||Category Avg|
|Annual Report Expense Ratio (net)||0.72%||N/A|
|Annual Holdings Turnover||NaN||N/A|
|Total Net Assets||NaN||N/A|