S000000583 [Member] Expense Example - BARON GROWTH FUND |
Sep. 30, 2025
USD ($)
|
|---|---|
| BARON GROWTH FUND | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | $ 142 |
| Expense Example, with Redemption, 3 Years | 440 |
| Expense Example, with Redemption, 5 Years | 761 |
| Expense Example, with Redemption, 10 Years | 1,669 |
| Institutional Shares | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 115 |
| Expense Example, with Redemption, 3 Years | 359 |
| Expense Example, with Redemption, 5 Years | 622 |
| Expense Example, with Redemption, 10 Years | 1,375 |
| R6 Shares | |
| Prospectus [Line Items] | |
| Expense Example, with Redemption, 1 Year | 115 |
| Expense Example, with Redemption, 3 Years | 359 |
| Expense Example, with Redemption, 5 Years | 622 |
| Expense Example, with Redemption, 10 Years | $ 1,375 |