v3.26.1
FT Vest Bitcoin Strategy Floor15 ETF - January Expense Example, No Redemption - FT Vest Bitcoin Strategy Floor15 ETF - January - FT Vest Bitcoin Strategy Floor15 ETF - January
Dec. 31, 2025
USD ($)
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 92
Expense Example, No Redemption, 3 Years $ 287