Services [Member] Annual Fund Operating Expenses - Services - BLACKROCK TACTICAL OPPORTUNITIES FUND |
Apr. 30, 2025 |
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| Prospectus [Line Items] | ||||||||
| Fee Waiver or Reimbursement over Assets, Date of Termination | June 30, 2027 | |||||||
| Service Shares | ||||||||
| Prospectus [Line Items] | ||||||||
| Management Fees (as a percentage of Assets) | 0.52% | [1] | ||||||
| Distribution and Service (12b-1) Fees | 0.25% | |||||||
| Component1 Other Expenses | 0.25% | |||||||
| Component2 Other Expenses | 0.01% | |||||||
| Other Expenses (as a percentage of Assets): | 0.26% | |||||||
| Acquired Fund Fees and Expenses | 0.01% | [2] | ||||||
| Expenses (as a percentage of Assets) | 1.04% | [2] | ||||||
| Fee Waiver or Reimbursement | [1],[3] | |||||||
| Net Expenses (as a percentage of Assets) | 1.04% | [1],[3] | ||||||
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