S000033312 [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 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| Northern Trust Morningstar US Market Factor Tilt ETF | FlexShares Morningstar US Market Factor Tilt Index Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 16.41% | 19.93% | 24.65% | (17.15%) | 27.49% | 16.10% | 29.00% | (8.52%) | 17.83% | 16.99% |