|iShares 3-7 Year Treasury Bond|
|The investment seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the Barclays U.S. 3-7 Year Treasury Bond Index (the "underlying index").
The fund generally invests at least 90% of its assets in the bonds of the underlying index and at least 95% of its assets in U.S. government bonds. The underlying index measures the performance of public obligations of the U.S. Treasury that have a remaining maturity of greater than or equal to three years and less than seven years.|
| ||IEI||Category Avg|
|Annual Report Expense Ratio (net)||0.15%||N/A|
|Annual Holdings Turnover||51.00%||N/A|
|Total Net Assets||NaN||N/A|