| Label | Element | Value |
|---|---|---|
| Innovator U.S. Equity Buffer ETF™ - July | SPDR S&P 500 ETF Trust, Expiration: 06/30/2026; Exercise Price: $6.19 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 102.50% |
| Innovator U.S. Equity Buffer ETF™ - July | SPDR S&P 500 ETF Trust, Expiration: 06/30/2026; Exercise Price: $617.86 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.30% |
| Innovator U.S. Equity Buffer ETF™ - July | SPDR S&P 500 ETF Trust, Expiration: 06/30/2026; Exercise Price: $562.26 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.10%) |
| Innovator U.S. Equity Buffer ETF™ - July | SPDR S&P 500 ETF Trust, Expiration: 06/30/2026; Exercise Price: $716.77 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (2.90%) |