Label	Element	Value
Themes Transatlantic Defense ETF \| GE Aerospace
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	8.80%
Themes Transatlantic Defense ETF \| RTX Corp.
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	8.50%
Themes Transatlantic Defense ETF \| Boeing Co.
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	7.00%
Themes Transatlantic Defense ETF \| Airbus SE
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	6.20%
Themes Transatlantic Defense ETF \| Honeywell International, Inc.
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	6.20%
Themes Transatlantic Defense ETF \| Safran SA
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	5.60%
Themes Transatlantic Defense ETF \| Rolls-Royce Holdings PLC
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	5.00%
Themes Transatlantic Defense ETF \| Lockheed Martin Corp.
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	4.50%
Themes Transatlantic Defense ETF \| Rheinmetall AG
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	4.40%
Themes Transatlantic Defense ETF \| Northrop Grumman Corp.
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	4.20%
Themes Transatlantic Defense ETF \| Industrials
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	97.70%
Themes Transatlantic Defense ETF \| Technology
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	1.80%
Themes Transatlantic Defense ETF \| Consumer Discretionary
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	0.10%
Themes Transatlantic Defense ETF \| Cash & Other
Holdings [Line Items]	oef_HoldingsLineItems
Percent of Total Investments	oef_PctOfTotalInv	0.40%