| Label | Element | Value |
|---|---|---|
| Innovator U.S. Equity Ultra Buffer ETF™ - July | SPDR S&P 500 ETF Trust, Expiration: 06/30/2026; Exercise Price: $6.17 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 105.60% |
| Innovator U.S. Equity Ultra Buffer ETF™ - July | SPDR S&P 500 ETF Trust, Expiration: 06/30/2026; Exercise Price: $586.96 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.20% |
| Innovator U.S. Equity Ultra Buffer ETF™ - July | SPDR S&P 500 ETF Trust, Expiration: 06/30/2026; Exercise Price: $401.60 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.00% |
| Innovator U.S. Equity Ultra Buffer ETF™ - July | SPDR S&P 500 ETF Trust, Expiration: 06/30/2026; Exercise Price: $688.96 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (6.10%) |