| Label | Element | Value |
|---|---|---|
| Innovator U.S. Equity Power Buffer ETF™ - January | SPDR S&P 500 ETF Trust, Expiration: 12/31/2026; Exercise Price: $6.82 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 100.80% |
| Innovator U.S. Equity Power Buffer ETF™ - January | SPDR S&P 500 ETF Trust, Expiration: 12/31/2026; Exercise Price: $681.92 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 3.50% |
| Innovator U.S. Equity Power Buffer ETF™ - January | SPDR S&P 500 ETF Trust, Expiration: 12/31/2026; Exercise Price: $579.63 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (1.40%) |
| Innovator U.S. Equity Power Buffer ETF™ - January | SPDR S&P 500 ETF Trust, Expiration: 12/31/2026; Exercise Price: $765.86 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (3.10%) |