v3.26.1
S000071635 [Member] Annual Total Returns
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Baron India Fund | Retail Shares        
Prospectus [Line Items]        
Annual Return [Percent] (0.63%) 17.55% 5.54% (27.24%)