| Label | Element | Value |
|---|---|---|
| Innovator U.S. Equity Power Buffer ETF™ - April | State Street SPDR S&P 500 ETF Trust, Expiration: 03/31/2027; Exercise Price: $6.50 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 104.70% |
| Innovator U.S. Equity Power Buffer ETF™ - April | State Street SPDR S&P 500 ETF Trust, Expiration: 03/31/2027; Exercise Price: $650.34 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 3.50% |
| Innovator U.S. Equity Power Buffer ETF™ - April | State Street SPDR S&P 500 ETF Trust, Expiration: 03/31/2027; Exercise Price: $552.79 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (1.60%) |
| Innovator U.S. Equity Power Buffer ETF™ - April | State Street SPDR S&P 500 ETF Trust, Expiration: 03/31/2027; Exercise Price: $741.32 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | (6.80%) |