v3.25.4
S000096484 [Member] Average Annual Total Returns
 12 Months Ended 60 Months Ended 72 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
MSCI USA Financials Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent 15.23% 15.17% 11.97% [1]
S&P 500 Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent 17.88% 14.42% 15.08% [1]
MSCI ACWI Index (reflects no deduction for fees or expenses)        
Prospectus [Line Items]        
Average Annual Return, Percent 22.34% 11.19% 12.02% [1]
FactSet Global FinTech Index (reflects no deduction for fees, expenses or taxes)        
Prospectus [Line Items]        
Average Annual Return, Percent (4.16%) (2.90%) 2.55% [1]
Baron Financials ETF        
Prospectus [Line Items]        
Average Annual Return, Percent 0.91% 4.01% 10.21%
Performance Inception Date     Dec. 31, 2019  
Baron Financials ETF | After Taxes on Distributions        
Prospectus [Line Items]        
Average Annual Return, Percent 0.91% 3.94% 10.15%
Performance Inception Date     Dec. 31, 2019  
Baron Financials ETF | After Taxes on Distributions and Sales        
Prospectus [Line Items]        
Average Annual Return, Percent 0.54% 3.09% 8.16%
Performance Inception Date     Dec. 31, 2019  
[1] Since Inception reflects the inception date of the Institutional Shares of the Predecessor Fund (commenced operations on 12/31/2019).