v3.26.1
Label Element Value
Innovator U.S. Equity Buffer ETF™ - March | State Street SPDR S&P 500 ETF Trust, Expiration: 02/26/2027; Exercise Price: $6.87 [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 100.30%
Innovator U.S. Equity Buffer ETF™ - March | State Street SPDR S&P 500 ETF Trust, Expiration: 02/26/2027; Exercise Price: $686.00 [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav 4.10%
Innovator U.S. Equity Buffer ETF™ - March | State Street SPDR S&P 500 ETF Trust, Expiration: 02/26/2027; Exercise Price: $802.47 (Short) [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav (2.10%)
Innovator U.S. Equity Buffer ETF™ - March | State Street SPDR S&P 500 ETF Trust, Expiration: 02/26/2027; Exercise Price: $624.26 (Short) [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Net Asset Value oef_PctOfNav (2.50%)