|The investment seeks to track the investment results of an index composed of investment-grade commercial mortgage-backed securities.
The fund seeks to track the investment results of the Barclays U.S. CMBS (ERISA Only) Index (the "underlying index"), which measures the performance of investment-grade commercial mortgage-backed securities ("CMBS"), which are classes of securities (known as "certificates") that represent interests in "pools" of commercial mortgages. The fund is non-diversified.|
| ||CMBS||Category Avg|
|Annual Report Expense Ratio (net)||0.25%||N/A|
|Annual Holdings Turnover||45.00%||N/A|
|Total Net Assets||NaN||N/A|