|First Trust Germany AlphaDEX 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 NASDAQ AlphaDEX(R) Germany Index.
The fund will normally invest at least 90% of its net assets (including investment borrowings) in common stocks and/or depositary receipts that comprise the index. The index is designed to select stocks from the NASDAQ Germany Index (the "base index") that may generate positive alpha, or risk-adjusted returns, relative to traditional indices through the use of the AlphaDEX(R) selection methodology. The fund is non-diversified.|
| ||FGM||Category Avg|
|Annual Report Expense Ratio (net)||0.80%||N/A|
|Annual Holdings Turnover||83.00%||N/A|
|Total Net Assets||NaN||N/A|