| Label | Element | Value |
|---|---|---|
| Innovator U.S. Small Cap Power Buffer ETF™ - May | iShares Russell 2000 ETF, Expiration: 04/30/2027; Exercise Price: $2.78 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 98.40% |
| Innovator U.S. Small Cap Power Buffer ETF™ - May | iShares Russell 2000 ETF, Expiration: 04/30/2027; Exercise Price: $277.97 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 8.00% |
| Innovator U.S. Small Cap Power Buffer ETF™ - May | iShares Russell 2000 ETF, Expiration: 04/30/2027; Exercise Price: $329.28 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (3.20%) |
| Innovator U.S. Small Cap Power Buffer ETF™ - May | iShares Russell 2000 ETF, Expiration: 04/30/2027; Exercise Price: $236.27 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (3.50%) |