| Label | Element | Value |
|---|---|---|
| Roundhill S&P 500® No Dividend Target ETF | iShares Core S&P 500 ETF [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 99.90% |
| Roundhill S&P 500® No Dividend Target ETF | Cash & Other [Member] | ||
| Holdings [Line Items] | oef_HoldingsLineItems | |
| Percent of Total Investments | oef_PctOfTotalInv | 100.00% |