| Label | Element | Value |
|---|---|---|
| Innovator Index Autocallable Income Strategy ETF | United States Treasury Bill [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 98.10% |
| Innovator Index Autocallable Income Strategy ETF | Worst of SPY QQQ IWM 2029 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.30% |
| Innovator Index Autocallable Income Strategy ETF | Worst of SPY QQQ IWM 2027 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.20% |
| Innovator Index Autocallable Income Strategy ETF | SPY QQQ IWM TRS 04302029 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.00% |