| Label | Element | Value |
|---|---|---|
| Innovator Emerging Markets 10 Buffer ETF™ - Quarterly | iShares MSCI Emerging Markets ETF, Expiration: 06/30/2026; Exercise Price: $0.14 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 106.10% |
| Innovator Emerging Markets 10 Buffer ETF™ - Quarterly | iShares MSCI Emerging Markets ETF, Expiration: 06/30/2026; Exercise Price: $56.79 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 1.10% |
| Innovator Emerging Markets 10 Buffer ETF™ - Quarterly | iShares MSCI Emerging Markets ETF, Expiration: 06/30/2026; Exercise Price: $51.11 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.40%) |
| Innovator Emerging Markets 10 Buffer ETF™ - Quarterly | iShares MSCI Emerging Markets ETF, Expiration: 06/30/2026; Exercise Price: $61.33 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (6.90%) |