S000026552 [Member] Average Annual Total Returns |
12 Months Ended | 60 Months Ended | 120 Months Ended | 195 Months Ended |
|---|---|---|---|---|
Dec. 31, 2025 |
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% | 14.29% | |
| Russell Top 200 Growth Index (Returns do not reflect deductions for fees, expenses or taxes) | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 18.62% | 16.73% | 19.19% | |
| iShares Russell Top 200 Growth ETF | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 18.36% | 16.49% | 18.96% | |
| Performance Inception Date | Sep. 22, 2009 | |||
| iShares Russell Top 200 Growth ETF | After Taxes on Distributions | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 18.25% | 16.32% | 18.70% | |
| iShares Russell Top 200 Growth ETF | After Taxes on Distributions and Sales | ||||
| Prospectus [Line Items] | ||||
| Average Annual Return, Percent | 10.94% | 13.31% | 16.24% |