Class K [Member] Expense Example - Class K - BlackRock Systematic Multi-Strategy Fund - Class K Shares |
Dec. 31, 2025
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 83 |
| Expense Example, with Redemption, 3 Years | 259 |
| Expense Example, with Redemption, 5 Years | 450 |
| Expense Example, with Redemption, 10 Years | $ 1,002 |