S000033314 [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 Emerging Markets Factor Tilt ETF | FlexShares Morningstar Emerging Markets Factor Tilt Index Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 29.57% | 4.89% | 12.52% | (17.12%) | 5.39% | 11.44% | 14.17% | (16.14%) | 32.37% | 12.05% |