| Label | Element | Value |
|---|---|---|
| Innovator U.S. Equity 10 Buffer ETF™ - Quarterly | State Street SPDR S&P 500 ETF Trust, Expiration: 06/30/2026; Exercise Price: $1.61 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 106.90% |
| Innovator U.S. Equity 10 Buffer ETF™ - Quarterly | State Street SPDR S&P 500 ETF Trust, Expiration: 06/30/2026; Exercise Price: $650.33 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.60% |
| Innovator U.S. Equity 10 Buffer ETF™ - Quarterly | State Street SPDR S&P 500 ETF Trust, Expiration: 06/30/2026; Exercise Price: $585.31 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (0.20%) |
| Innovator U.S. Equity 10 Buffer ETF™ - Quarterly | State Street SPDR S&P 500 ETF Trust, Expiration: 06/30/2026; Exercise Price: $678.69 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (7.40%) |