| Label | Element | Value |
|---|---|---|
| Innovator Premium Income 30 Barrier ETF® - July | United States Treasury Bill [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 100.20% |
| Innovator Premium Income 30 Barrier ETF® - July | S&P 500 Index, Expiration: 06/30/2026; Exercise Price: $4,281.42 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 1.10% |
| Innovator Premium Income 30 Barrier ETF® - July | S&P 500 Mini Index, Expiration: 06/30/2026; Exercise Price: $434.34 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.00% |
| Innovator Premium Income 30 Barrier ETF® - July | S&P 500 Index, Expiration: 06/30/2026; Exercise Price: $4,343.47 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (1.20%) |