|SPDR S&P MidCap 400 ETF|
|The investment seeks to provide investment results that, before expenses, generally correspond to the price and yield performance of the S&P MidCap 400® Index™.
The Trust seeks to achieve its investment objective by holding a portfolio of the common stocks that are included in the index (the “Portfolio”), with the weight of each stock in the Portfolio substantially corresponding to the weight of such stock in the index. The index is composed of four hundred (400) selected stocks, all of which are listed on national stock exchanges, and span a broad range of major industry groups.|
| ||MDY||Category Avg|
|Annual Report Expense Ratio (net)||0.25%||N/A|
|Annual Holdings Turnover||22.28%||N/A|
|Total Net Assets||NaN||N/A|