S000042071 [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 STOXX Global Broad Infrastructure ETF | FlexShares STOXX Global Broad Infrastructure Index Fund | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 18.12% | 4.64% | 8.94% | (10.03%) | 9.70% | 2.41% | 26.23% | (7.91%) | 16.04% | 8.49% |