S000033313 [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 Developed Markets ex-US Factor Tilt ETF | FlexShares Morningstar Developed Markets ex-US Factor Tilt Index Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 38.59% | 5.10% | 17.56% | (13.73%) | 12.26% | 4.36% | 21.50% | (17.24%) | 25.92% | 5.40% |