| Label | Element | Value |
|---|---|---|
| Innovator International Developed Power Buffer ETF™ - December | iShares MSCI EAFE ETF, Expiration: 11/30/2026; Exercise Price: $0.95 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 99.70% |
| Innovator International Developed Power Buffer ETF™ - December | iShares MSCI EAFE ETF, Expiration: 11/30/2026; Exercise Price: $95.19 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 3.10% |
| Innovator International Developed Power Buffer ETF™ - December | iShares MSCI EAFE ETF, Expiration: 11/30/2026; Exercise Price: $80.91 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (1.20%) |
| Innovator International Developed Power Buffer ETF™ - December | iShares MSCI EAFE ETF, Expiration: 11/30/2026; Exercise Price: $111.86 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (1.80%) |