Expense Example	Oct. 31, 2025 USD ($)
Innovator Equity Dual Directional 10 Buffer ETF - July \| Innovator Equity Dual Directional 10 Buffer ETF - July
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 81
Expense Example, with Redemption, 3 Years	252
Innovator Equity Dual Directional 10 Buffer ETF - September \| Innovator Equity Dual Directional 10 Buffer ETF - September
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Innovator Equity Dual Directional 10 Buffer ETF - October \| Innovator Equity Dual Directional 10 Buffer ETF - October
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Innovator Equity Dual Directional 10 Buffer ETF - November \| Innovator Equity Dual Directional 10 Buffer ETF - November
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Innovator Equity Dual Directional 15 Buffer ETF - July \| Innovator Equity Dual Directional 15 Buffer ETF - July
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Innovator Equity Dual Directional 15 Buffer ETF - September \| Innovator Equity Dual Directional 15 Buffer ETF - September
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Innovator Equity Dual Directional 15 Buffer ETF - October \| Innovator Equity Dual Directional 15 Buffer ETF - October
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Innovator Equity Dual Directional 15 Buffer ETF - November \| Innovator Equity Dual Directional 15 Buffer ETF - November
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	$ 252