Investor A C And Institutional [Member] Expense Example, No Redemption - Investor A, C and Institutional - BlackRock Systematic Multi-Strategy Fund - Investor C Shares |
Dec. 31, 2025
USD ($)
|
|---|---|
| Prospectus [Line Items] | |
| Expense Example, No Redemption, 1 Year | $ 193 |
| Expense Example, No Redemption, 3 Years | 597 |
| Expense Example, No Redemption, 5 Years | 1,026 |
| Expense Example, No Redemption, 10 Years | $ 2,043 |