| Label | Element | Value |
|---|---|---|
| Innovator U.S. Small Cap Power Buffer ETF™ - November | iShares Russell 2000 ETF, Expiration: 10/30/2026; Exercise Price: $2.46 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 102.90% |
| Innovator U.S. Small Cap Power Buffer ETF™ - November | iShares Russell 2000 ETF, Expiration: 10/30/2026; Exercise Price: $246.23 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 2.60% |
| Innovator U.S. Small Cap Power Buffer ETF™ - November | iShares Russell 2000 ETF, Expiration: 10/30/2026; Exercise Price: $209.30 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.90%) |
| Innovator U.S. Small Cap Power Buffer ETF™ - November | iShares Russell 2000 ETF, Expiration: 10/30/2026; Exercise Price: $291.22 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (4.90%) |