Investor A C Institutional and Class R [Member] Annual Fund Operating Expenses - Investor A, C, Institutional and Class R - BlackRock Advantage SMID Cap Fund, Inc. |
Mar. 31, 2025 |
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Prospectus [Line Items] | ||||||
Fee Waiver or Reimbursement over Assets, Date of Termination | June 30, 2027 | |||||
Investor A Shares | ||||||
Prospectus [Line Items] | ||||||
Management Fees (as a percentage of Assets) | 0.50% | [1] | ||||
Distribution and Service (12b-1) Fees | 0.25% | |||||
Other Expenses (as a percentage of Assets): | 0.28% | |||||
Expenses (as a percentage of Assets) | 1.03% | |||||
Fee Waiver or Reimbursement | (0.30%) | [1],[2] | ||||
Net Expenses (as a percentage of Assets) | 0.73% | [1],[2] | ||||
Investor C Shares | ||||||
Prospectus [Line Items] | ||||||
Management Fees (as a percentage of Assets) | 0.50% | [1] | ||||
Distribution and Service (12b-1) Fees | 1.00% | |||||
Other Expenses (as a percentage of Assets): | 0.39% | |||||
Expenses (as a percentage of Assets) | 1.89% | |||||
Fee Waiver or Reimbursement | (0.41%) | [1],[2] | ||||
Net Expenses (as a percentage of Assets) | 1.48% | [1],[2] | ||||
Institutional Shares | ||||||
Prospectus [Line Items] | ||||||
Management Fees (as a percentage of Assets) | 0.50% | [1] | ||||
Distribution and Service (12b-1) Fees | 0.00% | |||||
Other Expenses (as a percentage of Assets): | 0.27% | |||||
Expenses (as a percentage of Assets) | 0.77% | |||||
Fee Waiver or Reimbursement | (0.29%) | [1],[2] | ||||
Net Expenses (as a percentage of Assets) | 0.48% | [1],[2] | ||||
Class R Shares | ||||||
Prospectus [Line Items] | ||||||
Management Fees (as a percentage of Assets) | 0.50% | [1] | ||||
Distribution and Service (12b-1) Fees | 0.50% | |||||
Other Expenses (as a percentage of Assets): | 0.39% | |||||
Expenses (as a percentage of Assets) | 1.39% | |||||
Fee Waiver or Reimbursement | (0.41%) | [1],[2] | ||||
Net Expenses (as a percentage of Assets) | 0.98% | [1],[2] | ||||
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