| Label | Element | Value |
|---|---|---|
| Innovator International Developed Power Buffer ETF™ - October | iShares MSCI EAFE ETF, Expiration: 09/30/2026; Exercise Price: $0.93 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 101.00% |
| Innovator International Developed Power Buffer ETF™ - October | iShares MSCI EAFE ETF, Expiration: 09/30/2026; Exercise Price: $93.37 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 2.00% |
| Innovator International Developed Power Buffer ETF™ - October | iShares MSCI EAFE ETF, Expiration: 09/30/2026; Exercise Price: $79.36 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.60%) |
| Innovator International Developed Power Buffer ETF™ - October | iShares MSCI EAFE ETF, Expiration: 09/30/2026; Exercise Price: $106.34 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (2.60%) |