| Label | Element | Value |
|---|---|---|
| Innovator Equity Defined Protection ETF® - 1 Yr January | SPDR S&P 500 ETF Trust, Expiration: 12/31/2026; Exercise Price: $6.86 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 102.50% |
| Innovator Equity Defined Protection ETF® - 1 Yr January | SPDR S&P 500 ETF Trust, Expiration: 12/31/2026; Exercise Price: $681.96 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 3.60% |
| Innovator Equity Defined Protection ETF® - 1 Yr January | SPDR S&P 500 ETF Trust, Expiration: 12/31/2026; Exercise Price: $726.65 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (6.30%) |