| Label | Element | Value |
|---|---|---|
| Innovator U.S. Equity Power Buffer ETF™ - May | State Street SPDR S&P 500 ETF Trust, Expiration: 04/30/2027; Exercise Price: $7.19 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 99.00% |
| Innovator U.S. Equity Power Buffer ETF™ - May | State Street SPDR S&P 500 ETF Trust, Expiration: 04/30/2027; Exercise Price: $718.66 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 5.80% |
| Innovator U.S. Equity Power Buffer ETF™ - May | State Street SPDR S&P 500 ETF Trust, Expiration: 04/30/2027; Exercise Price: $812.09 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (2.40%) |
| Innovator U.S. Equity Power Buffer ETF™ - May | State Street SPDR S&P 500 ETF Trust, Expiration: 04/30/2027; Exercise Price: $610.86 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (2.60%) |