| Label | Element | Value |
|---|---|---|
| Innovator U.S. Small Cap Power Buffer ETF™ - March | iShares Russell 2000 ETF, Expiration: 02/26/2027; Exercise Price: $2.61 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 101.30% |
| Innovator U.S. Small Cap Power Buffer ETF™ - March | iShares Russell 2000 ETF, Expiration: 02/26/2027; Exercise Price: $261.41 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 5.20% |
| Innovator U.S. Small Cap Power Buffer ETF™ - March | iShares Russell 2000 ETF, Expiration: 02/26/2027; Exercise Price: $222.20 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (2.20%) |
| Innovator U.S. Small Cap Power Buffer ETF™ - March | iShares Russell 2000 ETF, Expiration: 02/26/2027; Exercise Price: $308.73 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (4.50%) |