v3.26.1
First Trust Capital Strength ETF Expense Example, No Redemption - First Trust Capital Strength ETF - First Trust Capital Strength ETF
Dec. 31, 2025
USD ($)
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 54
Expense Example, No Redemption, 3 Years 170
Expense Example, No Redemption, 5 Years 296
Expense Example, No Redemption, 10 Years $ 665