Expense Example	Oct. 31, 2025 USD ($)
Innovator Premium Income 20 Barrier ETF - January \| Innovator Premium Income 20 Barrier 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 Premium Income 30 Barrier ETF - January \| Innovator Premium Income 30 Barrier 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 Premium Income 15 Buffer ETF - January \| Innovator Premium Income 15 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 Premium Income 20 Barrier ETF -- April \| Innovator Premium Income 20 Barrier 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 Premium Income 30 Barrier ETF - April \| Innovator Premium Income 30 Barrier 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 Premium Income 15 Buffer ETF - April \| Innovator Premium Income 15 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 Premium Income 20 Barrier ETF - July \| Innovator Premium Income 20 Barrier 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 Premium Income 30 Barrier ETF - July \| Innovator Premium Income 30 Barrier 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 Premium Income 15 Buffer ETF - July \| Innovator Premium Income 15 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 Premium Income 20 Barrier ETF - October \| Innovator Premium Income 20 Barrier 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 Premium Income 30 Barrier ETF - October \| Innovator Premium Income 30 Barrier 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 Premium Income 15 Buffer ETF - October \| Innovator Premium Income 15 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

- References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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