| Label | Element | Value |
|---|---|---|
| Innovator 20+ Year Treasury Bond 5 Floor ETF® - Quarterly | iShares 20+ Year Treasury Bond ETF, Expiration: 06/30/2026; Exercise Price: $0.22 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 99.30% |
| Innovator 20+ Year Treasury Bond 5 Floor ETF® - Quarterly | iShares 20+ Year Treasury Bond ETF, Expiration: 06/30/2026; Exercise Price: $82.36 [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.60% |
| Innovator 20+ Year Treasury Bond 5 Floor ETF® - Quarterly | iShares 20+ Year Treasury Bond ETF, Expiration: 06/30/2026; Exercise Price: $109.94 (Short) [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Net Asset Value | oef_PctOfNav | 0.00% |