| Label | Element | Value |
|---|---|---|
| Innovator U.S. Small Cap Power Buffer ETF™ - July | iShares Russell 2000 ETF, Expiration: 06/30/2026; Exercise Price: $2.16 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 111.20% |
| Innovator U.S. Small Cap Power Buffer ETF™ - July | iShares Russell 2000 ETF, Expiration: 06/30/2026; Exercise Price: $215.79 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.20% |
| Innovator U.S. Small Cap Power Buffer ETF™ - July | iShares Russell 2000 ETF, Expiration: 06/30/2026; Exercise Price: $183.42 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.10%) |
| Innovator U.S. Small Cap Power Buffer ETF™ - July | iShares Russell 2000 ETF, Expiration: 06/30/2026; Exercise Price: $252.79 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (11.50%) |