| Label | Element | Value |
|---|---|---|
| Innovator U.S. Equity Power Buffer ETF™ - October | SPDR S&P 500 ETF Trust, Expiration: 09/30/2026; Exercise Price: $6.66 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 101.30% |
| Innovator U.S. Equity Power Buffer ETF™ - October | SPDR S&P 500 ETF Trust, Expiration: 09/30/2026; Exercise Price: $666.18 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 2.00% |
| Innovator U.S. Equity Power Buffer ETF™ - October | SPDR S&P 500 ETF Trust, Expiration: 09/30/2026; Exercise Price: $566.25 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.70%) |
| Innovator U.S. Equity Power Buffer ETF™ - October | SPDR S&P 500 ETF Trust, Expiration: 09/30/2026; Exercise Price: $744.86 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (2.90%) |