S000062125 [Member] Annual Total Returns |
12 Months Ended | ||||||
|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
| Northern Trust High Yield Value-Scored Bond ETF | FlexShares High Yield Value-Scored Bond Index Fund | |||||||
| Prospectus [Line Items] | |||||||
| Annual Return [Percent] | 7.89% | 7.70% | 12.98% | (13.01%) | 6.14% | 7.92% | 15.61% |