v3.26.1
First Trust Nasdaq-100 Select Equal Weight ETF Annual Fund Operating Expenses - First Trust Nasdaq-100 Select Equal Weight ETF - First Trust Nasdaq-100 Select Equal Weight ETF
Dec. 31, 2025
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.55%
Distribution and Service (12b-1) Fees 0.00%
Other Expenses (as a percentage of Assets): 0.00%
Expenses (as a percentage of Assets) 0.55% [1]
[1] Expenses have been restated to reflect the current fiscal year.