Expense Example	Oct. 31, 2025 USD ($)
Innovator Growth Accelerated Plus ETF - January \| Innovator Growth Accelerated Plus ETF - January
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	$ 81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator U.S. Equity Accelerated 9 Buffer ETF - January \| Innovator U.S. Equity Accelerated 9 Buffer ETF - January
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator U.S. Equity Accelerated Plus ETF - January \| Innovator U.S. Equity Accelerated Plus ETF - January
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator Growth Accelerated Plus ETF - April \| Innovator Growth Accelerated Plus ETF - April
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator U.S. Equity Accelerated 9 Buffer ETF - April \| Innovator U.S. Equity Accelerated 9 Buffer ETF - April
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator U.S. Equity Accelerated Plus ETF - April \| Innovator U.S. Equity Accelerated Plus ETF - April
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator Growth Accelerated Plus ETF - July \| Innovator Growth Accelerated Plus ETF - July
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator U.S. Equity Accelerated 9 Buffer ETF - July \| Innovator U.S. Equity Accelerated 9 Buffer ETF - July
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator U.S. Equity Accelerated Plus ETF - July \| Innovator U.S. Equity Accelerated Plus ETF - July
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator Growth Accelerated Plus ETF - October \| Innovator Growth Accelerated Plus ETF - October
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator U.S. Equity Accelerated 9 Buffer ETF - October \| Innovator U.S. Equity Accelerated 9 Buffer ETF - October
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator U.S. Equity Accelerated Plus ETF - October \| Innovator U.S. Equity Accelerated Plus ETF - October
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator Growth Accelerated ETF - Quarterly \| Innovator Growth Accelerated ETF - Quarterly
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator U.S. Equity Accelerated ETF - Quarterly \| Innovator U.S. Equity Accelerated ETF - Quarterly
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	978
Innovator Uncapped Accelerated U.S. Equity ETF \| Innovator Uncapped Accelerated U.S. Equity ETF
Prospectus [Line Items]
Expense Example, with Redemption, 1 Year	81
Expense Example, with Redemption, 3 Years	252
Expense Example, with Redemption, 5 Years	439
Expense Example, with Redemption, 10 Years	$ 978

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