| Label | Element | Value |
|---|---|---|
| Innovator U.S. Small Cap Power Buffer ETF™ - August | iShares Russell 2000 ETF, Expiration: 07/31/2026; Exercise Price: $2.19 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 110.40% |
| Innovator U.S. Small Cap Power Buffer ETF™ - August | iShares Russell 2000 ETF, Expiration: 07/31/2026; Exercise Price: $219.39 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.50% |
| Innovator U.S. Small Cap Power Buffer ETF™ - August | iShares Russell 2000 ETF, Expiration: 07/31/2026; Exercise Price: $186.48 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.20%) |
| Innovator U.S. Small Cap Power Buffer ETF™ - August | iShares Russell 2000 ETF, Expiration: 07/31/2026; Exercise Price: $257.30 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (10.90%) |