v3.26.1
Expense Example, No Redemption - FT Vest Bitcoin Strategy Floor15 ETF - April - FT Vest Bitcoin Strategy Floor15 ETF - April
Apr. 04, 2025
USD ($)
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 92
Expense Example, No Redemption, 3 Years $ 287