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First Trust Germany AlphaDEX Fund Annual Fund Operating Expenses - First Trust Germany AlphaDEX Fund - First Trust Germany AlphaDEX Fund
Dec. 31, 2025
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.80%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.00%
Expenses (as a percentage of Assets) 0.80%