| Label | Element | Value |
|---|---|---|
| Innovator International Developed 10 Buffer ETF™ - Quarterly | iShares MSCI EAFE ETF, Expiration: 06/30/2026; Exercise Price: $0.24 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 100.50% |
| Innovator International Developed 10 Buffer ETF™ - Quarterly | iShares MSCI EAFE ETF, Expiration: 06/30/2026; Exercise Price: $97.13 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 1.60% |
| Innovator International Developed 10 Buffer ETF™ - Quarterly | iShares MSCI EAFE ETF, Expiration: 06/30/2026; Exercise Price: $87.42 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.40%) |
| Innovator International Developed 10 Buffer ETF™ - Quarterly | iShares MSCI EAFE ETF, Expiration: 06/30/2026; Exercise Price: $104.12 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (1.70%) |