| Label | Element | Value |
|---|---|---|
| Innovator U.S. Equity Power Buffer ETF™ - September | SPDR S&P 500 ETF Trust, Expiration: 08/31/2026; Exercise Price: $6.45 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 103.20% |
| Innovator U.S. Equity Power Buffer ETF™ - September | SPDR S&P 500 ETF Trust, Expiration: 08/31/2026; Exercise Price: $645.05 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 1.30% |
| Innovator U.S. Equity Power Buffer ETF™ - September | SPDR S&P 500 ETF Trust, Expiration: 08/31/2026; Exercise Price: $548.29 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.40%) |
| Innovator U.S. Equity Power Buffer ETF™ - September | SPDR S&P 500 ETF Trust, Expiration: 08/31/2026; Exercise Price: $720.70 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (4.30%) |