| Label | Element | Value |
|---|---|---|
| Innovator U.S. Small Cap Power Buffer ETF™ - December | iShares Russell 2000 ETF, Expiration: 11/30/2026; Exercise Price: $2.49 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 103.00% |
| Innovator U.S. Small Cap Power Buffer ETF™ - December | iShares Russell 2000 ETF, Expiration: 11/30/2026; Exercise Price: $248.75 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 3.10% |
| Innovator U.S. Small Cap Power Buffer ETF™ - December | iShares Russell 2000 ETF, Expiration: 11/30/2026; Exercise Price: $211.44 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (1.20%) |
| Innovator U.S. Small Cap Power Buffer ETF™ - December | iShares Russell 2000 ETF, Expiration: 11/30/2026; Exercise Price: $293.77 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (5.10%) |