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First Trust New York Municipal High Income ETF Annual Total Returns
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
First Trust New York Municipal High Income ETF | First Trust New York Municipal High Income ETF      
Prospectus [Line Items]      
Annual Return [Percent] 1.99% 6.46% (11.00%)