| Label | Element | Value |
|---|---|---|
| Innovator Equity Defined Protection ETF® - 2 Yr to October 2027 | SPDR S&P 500 ETF Trust, Expiration: 09/30/2027; Exercise Price: $11.99 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 103.60% |
| Innovator Equity Defined Protection ETF® - 2 Yr to October 2027 | SPDR S&P 500 ETF Trust, Expiration: 09/30/2027; Exercise Price: $666.18 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 5.20% |
| Innovator Equity Defined Protection ETF® - 2 Yr to October 2027 | SPDR S&P 500 ETF Trust, Expiration: 09/30/2027; Exercise Price: $751.32 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (9.00%) |