| Label | Element | Value |
|---|---|---|
| Innovator U.S. Small Cap Power Buffer ETF™ - October | iShares Russell 2000 ETF, Expiration: 09/30/2026; Exercise Price: $2.42 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 104.00% |
| Innovator U.S. Small Cap Power Buffer ETF™ - October | iShares Russell 2000 ETF, Expiration: 09/30/2026; Exercise Price: $241.96 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 1.90% |
| Innovator U.S. Small Cap Power Buffer ETF™ - October | iShares Russell 2000 ETF, Expiration: 09/30/2026; Exercise Price: $205.67 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.70%) |
| Innovator U.S. Small Cap Power Buffer ETF™ - October | iShares Russell 2000 ETF, Expiration: 09/30/2026; Exercise Price: $283.53 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (5.50%) |