S000096484 [Member] Expense Example - Baron Financials ETF - Baron Financials ETF	Dec. 31, 2025 USD ($)
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 82
Expense Example, with Redemption, 3 Years	255
Expense Example, with Redemption, 5 Years	444
Expense Example, with Redemption, 10 Years	$ 990

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Form N-1A
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