| Label | Element | Value |
|---|---|---|
| Innovator Emerging Markets Power Buffer ETF™ - January | iShares MSCI Emerging Markets ETF, Expiration: 12/31/2026; Exercise Price: $0.55 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 108.50% |
| Innovator Emerging Markets Power Buffer ETF™ - January | iShares MSCI Emerging Markets ETF, Expiration: 12/31/2026; Exercise Price: $54.71 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 3.40% |
| Innovator Emerging Markets Power Buffer ETF™ - January | iShares MSCI Emerging Markets ETF, Expiration: 12/31/2026; Exercise Price: $46.50 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (1.40%) |
| Innovator Emerging Markets Power Buffer ETF™ - January | iShares MSCI Emerging Markets ETF, Expiration: 12/31/2026; Exercise Price: $62.62 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (10.70%) |