| Label | Element | Value |
|---|---|---|
| Innovator U.S. Equity Ultra Buffer ETF™ - August | SPDR S&P 500 ETF Trust, Expiration: 07/31/2026; Exercise Price: $6.31 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 104.40% |
| Innovator U.S. Equity Ultra Buffer ETF™ - August | SPDR S&P 500 ETF Trust, Expiration: 07/31/2026; Exercise Price: $600.48 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.50% |
| Innovator U.S. Equity Ultra Buffer ETF™ - August | SPDR S&P 500 ETF Trust, Expiration: 07/31/2026; Exercise Price: $410.85 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.10%) |
| Innovator U.S. Equity Ultra Buffer ETF™ - August | SPDR S&P 500 ETF Trust, Expiration: 07/31/2026; Exercise Price: $705.53 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (5.00%) |