v3.26.1
Label Element Value
Roundhill Space & Technology ETF | Space Exploration Technologies Corp. [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 22.70%
Roundhill Space & Technology ETF | Rocket Lab Corp. [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 10.20%
Roundhill Space & Technology ETF | AST SpaceMobile, Inc. [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 8.00%
Roundhill Space & Technology ETF | Viasat, Inc. [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 5.50%
Roundhill Space & Technology ETF | Planet Labs PBC [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 5.10%
Roundhill Space & Technology ETF | Globalstar, Inc. [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 4.30%
Roundhill Space & Technology ETF | Iridium Communications, Inc. [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 3.50%
Roundhill Space & Technology ETF | MDA Space Ltd. [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 3.20%
Roundhill Space & Technology ETF | Intuitive Machines, Inc. [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 2.90%
Roundhill Space & Technology ETF | Firefly Aerospace, Inc. [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 2.90%
Roundhill Space & Technology ETF | Communications [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 59.90%
Roundhill Space & Technology ETF | Industrial [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 31.70%
Roundhill Space & Technology ETF | Technology [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 6.00%
Roundhill Space & Technology ETF | Consumer, Non-cyclical [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 1.10%
Roundhill Space & Technology ETF | Financial [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 1.10%
Roundhill Space & Technology ETF | Cash & Other [Member]  
Holdings [Line Items] oef_HoldingsLineItems  
Percent of Total Investments oef_PctOfTotalInv 0.20%