|FlexShares iBoxx 3Yr Target Dur TIPS ETF|
|The investment seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of the iBoxx 3-Year Target Duration TIPS Index.
Under normal circumstances, the fund will invest at least 80% of its total assets in the securities of the underlying index. The underlying index reflects the performance of a selection of inflation protected public obligations of the U.S. Treasury, commonly known as "TIPS," with a targeted average modified adjusted duration, as defined by the underlying index, of approximately three years. The fund is non-diversified.|
| ||TDTT||Category Avg|
|Annual Report Expense Ratio (net)||0.20%||N/A|
|Annual Holdings Turnover||179.00%||N/A|
|Total Net Assets||NaN||N/A|