| Label | Element | Value |
|---|---|---|
| Innovator International Developed Power Buffer ETF™ - March | iShares MSCI EAFE ETF, Expiration: 02/26/2027; Exercise Price: $1.05 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 96.40% |
| Innovator International Developed Power Buffer ETF™ - March | iShares MSCI EAFE ETF, Expiration: 02/26/2027; Exercise Price: $105.38 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 7.30% |
| Innovator International Developed Power Buffer ETF™ - March | iShares MSCI EAFE ETF, Expiration: 02/26/2027; Exercise Price: $119.98 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (1.10%) |
| Innovator International Developed Power Buffer ETF™ - March | iShares MSCI EAFE ETF, Expiration: 02/26/2027; Exercise Price: $89.57 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (2.80%) |