First Eagle Small Cap Equity ETF First Eagle Core Municipal ETF First Eagle Small Cap Equity ETF First Eagle Core Municipal ETF First Eagle Small Cap Equity ETF First Eagle Core Municipal ETF Municipal Bond Risk [Member] Credit and Interest Rate Risk [Member] High Yield Risk [Member] Market Risk [Member] Call Risk [Member] Equity Risk [Member] Small-Size Company Risk [Member] Large Shareholder Risk [Member] New Fund Risk [Member] Changes in Debt Ratings Risk [Member] Secured Overnight Financing Rate ( [Member] Income Risk [Member] Alternative Minimum Tax Risk [Member] Municipal Issuer Focus Risk [Member] General Obligation and Revenue Bonds [Member] Education Revenue Bonds [Member] Industrial Revenue Bonds [Member] Special Tax Bonds [Member] Tax Allocation Revenue Securities [Member] Transportation Facility Revenue Bonds [Member] Municipal Lease Obligation Risk [Member] Tax-Exempt Status Risk [Member] Tax Risk [Member] Unrated Bond Risk [Member] U.S. Territory Risk [Member] Valuation Risk [Member] Zero Coupon Bond Risk [Member] Value Investment Strategy Risk [Member] Foreign Investment Risk [Member] Currency Risk [Member] Cybersecurity Risk [Member] Illiquid Investment Risk [Member] ETF Risk [Member] Authorized Participants, Market Makers and Liquidity Providers Concentration Risk [Member] Cash Transactions Risk [Member] Secondary Market Trading Risk [Member] Shares May Trade at Prices Other Than NAV Risk [Member] Changes In Debt Ratings Risk Member Income Risk Member Secured Overnight Financing Rate Member doc_ First_ Eagle_ Small_ Cap_ Equity_ ETFMember Credit And Interest Rate Risk Member Education Revenue Bonds Member Unrated Bond Risk Member Shares May Trade At Prices Other Than NAVRisk Member Cybersecurity Risk Member Tax Exempt Status Risk Member Tax Risk Member Municipal Bond Risk Member New Fund Risk Member Illiquid Investment Risk Member C000276903 Member Large Shareholder Risk Member S000106073 Member Call Risk Member ETFRisk Member Alternative Minimum Tax Risk Member Zero Coupon Bond Risk Member Authorized Participants Market Makers And Liquidity Providers Concentration Risk Member Foreign Investment Risk Member Market Risk Member General Obligation And Revenue Bonds Member Tax Allocation Revenue Securities Member Municipal Lease Obligation Risk Member High Yield Risk Member Industrial Revenue Bonds Member doc_ First_ Eagle_ Core_ Municipal_ ETFMember Special Tax Bonds Member Valuation Risk Member Currency Risk Member Secondary Market Trading Risk Member Cash Transactions Risk Member Equity Risk Member Transportation Facility Revenue Bonds Member Municipal Issuer Focus Risk Member USTerritory Risk Member Small Size Company Risk Member C000276904 Member Value Investment Strategy Risk Member S000106074 Member