| Label | Element | Value |
|---|---|---|
| Innovator Emerging Markets Power Buffer ETF™ - April | iShares MSCI Emerging Markets ETF, Expiration: 03/31/2027; Exercise Price: $0.57 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 103.10% |
| Innovator Emerging Markets Power Buffer ETF™ - April | iShares MSCI Emerging Markets ETF, Expiration: 03/31/2027; Exercise Price: $56.79 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 4.60% |
| Innovator Emerging Markets Power Buffer ETF™ - April | iShares MSCI Emerging Markets ETF, Expiration: 03/31/2027; Exercise Price: $48.27 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (1.90%) |
| Innovator Emerging Markets Power Buffer ETF™ - April | iShares MSCI Emerging Markets ETF, Expiration: 03/31/2027; Exercise Price: $70.53 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (6.00%) |