|First Trust Exchange-Traded AlphaDEX Fund II - First Trust Germany AlphaDEX Fund|
|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 Defined 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 a modified equal-dollar weighted index calculated by SPDJI based on select securities from the S&P Germany BMI Index (the "Base index") that may generate positive alpha relative to traditional passive-style indices through the use of the AlphaDEX(R) selection methodology. It 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|