Expense Example - BARON ASSET FUND	Jan. 28, 2021 USD ($)
Retail Shares
Expense Example:
Expense Example, with Redemption, 1 Year	$ 133
Expense Example, with Redemption, 3 Years	415
Expense Example, with Redemption, 5 Years	718
Expense Example, with Redemption, 10 Years	1,579
Institutional Shares
Expense Example:
Expense Example, with Redemption, 1 Year	107
Expense Example, with Redemption, 3 Years	334
Expense Example, with Redemption, 5 Years	579
Expense Example, with Redemption, 10 Years	1,283
R6 Shares
Expense Example:
Expense Example, with Redemption, 1 Year	107
Expense Example, with Redemption, 3 Years	334
Expense Example, with Redemption, 5 Years	579
Expense Example, with Redemption, 10 Years	$ 1,283