Investor A C and Institutional [Member] Expense Example - Investor A C and Institutional - BLACKROCK LARGE CAP FOCUS GROWTH FUND, INC. |
May 31, 2025
USD ($)
|
|---|---|
| Investor A Shares | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 614 |
| Expense Example, with Redemption, 3 Years | 815 |
| Expense Example, with Redemption, 5 Years | 1,033 |
| Expense Example, with Redemption, 10 Years | 1,658 |
| Investor C Shares | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 270 |
| Expense Example, with Redemption, 3 Years | 545 |
| Expense Example, with Redemption, 5 Years | 946 |
| Expense Example, with Redemption, 10 Years | 1,860 |
| Institutional Shares | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 68 |
| Expense Example, with Redemption, 3 Years | 230 |
| Expense Example, with Redemption, 5 Years | 405 |
| Expense Example, with Redemption, 10 Years | $ 912 |