v3.26.1
FT Vest Bitcoin Strategy Floor15 ETF - October Expense Example, No Redemption - FT Vest Bitcoin Strategy Floor15 ETF - October - FT Vest Bitcoin Strategy Floor15 ETF - October
Dec. 31, 2025
USD ($)
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 92
Expense Example, No Redemption, 3 Years 287
Expense Example, No Redemption, 5 Years 498
Expense Example, No Redemption, 10 Years $ 1,108