| Label | Element | Value |
|---|---|---|
| Innovator International Developed Power Buffer ETF™ - August | iShares MSCI EAFE ETF, Expiration: 07/31/2026; Exercise Price: $0.88 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 104.00% |
| Innovator International Developed Power Buffer ETF™ - August | iShares MSCI EAFE ETF, Expiration: 07/31/2026; Exercise Price: $87.52 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.90% |
| Innovator International Developed Power Buffer ETF™ - August | iShares MSCI EAFE ETF, Expiration: 07/31/2026; Exercise Price: $74.39 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.40%) |
| Innovator International Developed Power Buffer ETF™ - August | iShares MSCI EAFE ETF, Expiration: 07/31/2026; Exercise Price: $99.79 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (4.70%) |