S000057567 [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 |
|
| iShares Russell 2500 ETF | iShares Russell 2500 ETF | ||||||||
| Prospectus [Line Items] | ||||||||
| Annual Return [Percent] | 11.84% | 11.90% | 17.51% | (18.32%) | 18.05% | 20.19% | 27.70% | (10.00%) |