| Label | Element | Value |
|---|---|---|
| Innovator U.S. Equity Ultra Buffer ETF™ - November | SPDR S&P 500 ETF Trust, Expiration: 10/30/2026; Exercise Price: $6.81 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 100.30% |
| Innovator U.S. Equity Ultra Buffer ETF™ - November | SPDR S&P 500 ETF Trust, Expiration: 10/30/2026; Exercise Price: $647.96 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 2.00% |
| Innovator U.S. Equity Ultra Buffer ETF™ - November | SPDR S&P 500 ETF Trust, Expiration: 10/30/2026; Exercise Price: $443.34 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.30%) |
| Innovator U.S. Equity Ultra Buffer ETF™ - November | SPDR S&P 500 ETF Trust, Expiration: 10/30/2026; Exercise Price: $763.91 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (2.20%) |