Corporate Sector [Member] N R [Member] Ground Transportation [Member] Construction And Engineering [Member] Tobacco [Member] Education [Member] State [Member] Housing [Member] Health [Member] County City Special District School District [Member] C000254671 [Member] Fund Transportation Sector [Member] Standard & Poor's, CCC Rating [Member] Standard & Poor's, B Rating [Member] Standard & Poor's, BB Rating [Member] Standard & Poor's, BBB Rating [Member] Standard & Poor's, A Rating [Member] Standard & Poor's, AA Rating [Member] Standard & Poor's, AAA Rating [Member] Investment Type [Axis] Net Assets Investment Company Portfolio Turnover No Trading Symbol Flag