| Label | Element | Value |
|---|---|---|
| Innovator International Developed Power Buffer ETF™ - February | iShares MSCI EAFE ETF, Expiration: 01/29/2027; Exercise Price: $1.01 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 98.30% |
| Innovator International Developed Power Buffer ETF™ - February | iShares MSCI EAFE ETF, Expiration: 01/29/2027; Exercise Price: $100.74 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 5.30% |
| Innovator International Developed Power Buffer ETF™ - February | iShares MSCI EAFE ETF, Expiration: 01/29/2027; Exercise Price: $114.33 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (1.80%) |
| Innovator International Developed Power Buffer ETF™ - February | iShares MSCI EAFE ETF, Expiration: 01/29/2027; Exercise Price: $85.63 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (2.00%) |