Label	Element	Value
Innovator Gradient Tactical Rotation Strategy ETF \| Financial [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	29.00%
Innovator Gradient Tactical Rotation Strategy ETF \| Industrial [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	16.70%
Innovator Gradient Tactical Rotation Strategy ETF \| Consumer, Cyclical [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	12.90%
Innovator Gradient Tactical Rotation Strategy ETF \| Consumer, Non-cyclical [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	12.70%
Innovator Gradient Tactical Rotation Strategy ETF \| Technology [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	9.90%
Innovator Gradient Tactical Rotation Strategy ETF \| Basic Materials [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	7.10%
Innovator Gradient Tactical Rotation Strategy ETF \| Energy [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	4.30%
Innovator Gradient Tactical Rotation Strategy ETF \| Communications [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	2.50%
Innovator Gradient Tactical Rotation Strategy ETF \| Utilities [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	1.90%
Innovator Gradient Tactical Rotation Strategy ETF \| Cash & Other [Member]
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Net Asset Value	oef_PctOfNav	3.00%