| Label | Element | Value |
|---|---|---|
| Innovator U.S. Small Cap Power Buffer ETF™ - February | iShares Russell 2000 ETF, Expiration: 01/29/2027; Exercise Price: $2.60 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 101.30% |
| Innovator U.S. Small Cap Power Buffer ETF™ - February | iShares Russell 2000 ETF, Expiration: 01/29/2027; Exercise Price: $259.65 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 4.80% |
| Innovator U.S. Small Cap Power Buffer ETF™ - February | iShares Russell 2000 ETF, Expiration: 01/29/2027; Exercise Price: $220.70 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (1.90%) |
| Innovator U.S. Small Cap Power Buffer ETF™ - February | iShares Russell 2000 ETF, Expiration: 01/29/2027; Exercise Price: $305.43 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (4.50%) |