Average Annual Total Returns |
12 Months Ended | 19 Months Ended |
|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2024 |
|
| Solactive GBS Global Markets All Cap USD Index TR (reflects no deduction for fees, expenses, or taxes) | ||
| Prospectus [Line Items] | ||
| Average Annual Return, Percent | 16.75% | 18.54% |
| ROUNDHILL GENERATIVE AI & TECHNOLOGY ETF [Member] | ||
| Prospectus [Line Items] | ||
| Average Annual Return, Percent | 30.90% | 33.48% |
| Performance Inception Date | May 17, 2023 | |
| ROUNDHILL GENERATIVE AI & TECHNOLOGY ETF [Member] | After Taxes on Distributions | ||
| Prospectus [Line Items] | ||
| Average Annual Return, Percent | 30.90% | 33.48% |
| ROUNDHILL GENERATIVE AI & TECHNOLOGY ETF [Member] | After Taxes on Distributions and Sales | ||
| Prospectus [Line Items] | ||
| Average Annual Return, Percent | 18.29% | 26.03% |