|SPDR Series Trust - SPDR Nuveen S&P High Yield Municipal Bond ETF|
|The investment seeks to provide investment results that correspond generally to the price and yield performance of the S&P Municipal Yield Index.
The fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the index or in securities that the Sub-Adviser determines have economic characteristics that are substantially identical to the economic characteristics of the securities that comprise the index. The index tracks the U.S. high yield municipal bond market and to provide income that is exempt from federal income taxes. The fund is non-diversified.|
| ||HYMB||Category Avg|
|Annual Report Expense Ratio (net)||0.45%||N/A|
|Annual Holdings Turnover||38.00%||N/A|
|Total Net Assets||NaN||N/A|