|iShares 3-7 Year Treasury Bond|
|The investment seeks to track the investment results of an index composed of U.S. Treasury bonds with remaining maturities between three and seven years.
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. It seeks to track the investment results of the Barclays U.S. 3-7 Year Treasury Bond Index (the "underlying index"), which 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||58.00%||N/A|
|Total Net Assets||NaN||N/A|