v3.26.1
Annual Total Returns
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Innovator U.S. Equity Buffer ETF - August            
Prospectus [Line Items]            
Annual Return [Percent] 14.72% 21.32% 20.07% (10.19%) 12.04% 11.56%