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First Trust Bloomberg R&D Leaders ETF Annual Fund Operating Expenses - First Trust Bloomberg R&D Leaders ETF - First Trust Bloomberg R&D Leaders ETF
Mar. 31, 2025
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.60%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.00%
Expenses (as a percentage of Assets) 0.60%