| Label | Element | Value |
|---|---|---|
| Innovator Equity Defined Protection ETF® - 2 Yr to January 2027 | SPDR S&P 500 ETF Trust, Expiration: 12/31/2026; Exercise Price: $10.55 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 110.00% |
| Innovator Equity Defined Protection ETF® - 2 Yr to January 2027 | SPDR S&P 500 ETF Trust, Expiration: 12/31/2026; Exercise Price: $586.08 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 1.60% |
| Innovator Equity Defined Protection ETF® - 2 Yr to January 2027 | SPDR S&P 500 ETF Trust, Expiration: 12/31/2026; Exercise Price: $679.50 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (11.90%) |