S000057567 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 102 Months Ended |
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2025 |
Dec. 31, 2025 |
|
| Russell 3000 Index (Returns do not reflect deductions for fees, expenses or taxes) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 17.15% | 13.15% | 14.33% |
| Russell 2500 Index (Returns do not reflect deductions for fees, expenses or taxes) | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 11.91% | 7.26% | 9.63% |
| iShares Russell 2500 ETF | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 11.84% | 7.24% | 9.61% |
| Performance Inception Date | Jul. 06, 2017 | ||
| iShares Russell 2500 ETF | After Taxes on Distributions | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 11.40% | 6.77% | 9.06% |
| iShares Russell 2500 ETF | After Taxes on Distributions and Sales | |||
| Prospectus [Line Items] | |||
| Average Annual Return, Percent | 7.17% | 5.52% | 7.58% |