S000004308 [Member] Expense Example - iShares S&P Mid-Cap 400 Growth ETF - iShares S&P Mid-Cap 400 Growth ETF |
Mar. 31, 2026
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 16 |
| Expense Example, with Redemption, 3 Years | 52 |
| Expense Example, with Redemption, 5 Years | 90 |
| Expense Example, with Redemption, 10 Years | $ 205 |