| Label | Element | Value |
|---|---|---|
| Innovator U.S. Equity Ultra Buffer ETF™ - February | State Street SPDR S&P 500 ETF Trust, Expiration: 01/29/2027; Exercise Price: $6.89 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 100.60% |
| Innovator U.S. Equity Ultra Buffer ETF™ - February | State Street SPDR S&P 500 ETF Trust, Expiration: 01/29/2027; Exercise Price: $657.37 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 3.00% |
| Innovator U.S. Equity Ultra Buffer ETF™ - February | State Street SPDR S&P 500 ETF Trust, Expiration: 01/29/2027; Exercise Price: $449.78 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.50%) |
| Innovator U.S. Equity Ultra Buffer ETF™ - February | State Street SPDR S&P 500 ETF Trust, Expiration: 01/29/2027; Exercise Price: $770.79 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (3.40%) |