| Label | Element | Value |
|---|---|---|
| Innovator U.S. Equity Ultra Buffer ETF™ - June | SPDR S&P 500 ETF Trust, Expiration: 05/29/2026; Exercise Price: $5.88 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 109.50% |
| Innovator U.S. Equity Ultra Buffer ETF™ - June | SPDR S&P 500 ETF Trust, Expiration: 05/29/2026; Exercise Price: $559.92 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.00% |
| Innovator U.S. Equity Ultra Buffer ETF™ - June | SPDR S&P 500 ETF Trust, Expiration: 05/29/2026; Exercise Price: $383.10 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.00% |
| Innovator U.S. Equity Ultra Buffer ETF™ - June | SPDR S&P 500 ETF Trust, Expiration: 05/29/2026; Exercise Price: $658.82 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (9.80%) |