| Label | Element | Value |
|---|---|---|
| Innovator U.S. Small Cap Power Buffer ETF™ - June | iShares Russell 2000 ETF, Expiration: 05/29/2026; Exercise Price: $2.05 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 116.20% |
| Innovator U.S. Small Cap Power Buffer ETF™ - June | iShares Russell 2000 ETF, Expiration: 05/29/2026; Exercise Price: $205.07 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.00% |
| Innovator U.S. Small Cap Power Buffer ETF™ - June | iShares Russell 2000 ETF, Expiration: 05/29/2026; Exercise Price: $174.31 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.00% |
| Innovator U.S. Small Cap Power Buffer ETF™ - June | iShares Russell 2000 ETF, Expiration: 05/29/2026; Exercise Price: $239.85 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (16.50%) |