| Label | Element | Value |
|---|---|---|
| Innovator U.S. Equity Power Buffer ETF™ - December | SPDR S&P 500 ETF Trust, Expiration: 11/30/2026; Exercise Price: $6.83 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 100.10% |
| Innovator U.S. Equity Power Buffer ETF™ - December | SPDR S&P 500 ETF Trust, Expiration: 11/30/2026; Exercise Price: $683.39 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 3.20% |
| Innovator U.S. Equity Power Buffer ETF™ - December | SPDR S&P 500 ETF Trust, Expiration: 11/30/2026; Exercise Price: $580.88 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (1.20%) |
| Innovator U.S. Equity Power Buffer ETF™ - December | SPDR S&P 500 ETF Trust, Expiration: 11/30/2026; Exercise Price: $773.20 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (2.30%) |