| Label | Element | Value |
|---|---|---|
| Innovator International Developed Power Buffer ETF™ - September | iShares MSCI EAFE ETF, Expiration: 08/31/2026; Exercise Price: $0.91 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 101.80% |
| Innovator International Developed Power Buffer ETF™ - September | iShares MSCI EAFE ETF, Expiration: 08/31/2026; Exercise Price: $91.48 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 1.40% |
| Innovator International Developed Power Buffer ETF™ - September | iShares MSCI EAFE ETF, Expiration: 08/31/2026; Exercise Price: $77.76 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.50%) |
| Innovator International Developed Power Buffer ETF™ - September | iShares MSCI EAFE ETF, Expiration: 08/31/2026; Exercise Price: $104.10 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (2.90%) |