v3.25.4
S000096485 [Member] Average Annual Total Returns
 12 Months Ended 48 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
MSCI ACWI Information Technology Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent 26.37% 14.70% [1]
S&P 500 Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent 17.88% 11.11% [1]
MSCI ACWI Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent 22.34% 9.43% [1]
Baron Technology ETF        
Prospectus [Line Items]        
Average Annual Return, Percent 17.34% 12.08%
Performance Inception Date   Dec. 31, 2021    
Baron Technology ETF | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Percent 17.12% 12.03%
Performance Inception Date   Dec. 31, 2021    
Baron Technology ETF | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Percent 10.39% 9.55%
Performance Inception Date   Dec. 31, 2021    
[1] Since Inception reflects the inception date of the Institutional Shares of the Predecessor Fund (commenced operations on 12/31/2021).