S000065837 [Member] Investment Objectives and Goals - Northern Trust US Quality Low Volatility ETF |
Oct. 31, 2025 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | Northern Trust US Quality Low Volatility ETF(formerly, FlexShares® US Quality Low Volatility Index Fund) |
| Objective [Heading] | Investment Objective |
| Objective, Primary [Text Block] | The Fund seeks investment results that correspond generally to the price and yield performance, before fees and expenses, of the Northern Trust Quality Low Volatility IndexSM (the “Underlying Index”).
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