v3.26.1
Average Annual Total Returns
 12 Months Ended 33 Months Ended 44 Months Ended 54 Months Ended 60 Months Ended 67 Months Ended 79 Months Ended
Apr. 30, 2026
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Solactive GBS Global Markets All Cap USD Index TR (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Solactive GBS Global Markets All Cap USD Index TR(reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent   22.52% 19.79% 12.49% 9.25% 11.01% 14.22% 13.41%
Roundhill Video Games Blended Index (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] [1] Roundhill Video Games Blended Index*(reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent [1]   22.37%       (3.01%)   9.24%
Roundhill Sports Betting & iGaming Blended Index (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] [2] Roundhill Sports Betting & iGaming Blended Index*(reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent [2]   16.90%       (2.33%) 11.74%  
Ball Metaverse Index (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Ball Metaverse Index(reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent   31.69%     5.77%      
North American Cannabis Net Total Return Index (reflects no deduction for fees, expenses, or taxes)                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] North American Cannabis Net Total Return Index(reflects no deduction for fees, expenses, or taxes)              
Average Annual Return, Percent   14.69%   (22.92%)        
Roundhill Video Games ETF Class                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return Before Taxes              
Average Annual Return, Percent   22.47%       (3.43%)   8.63%
Performance Inception Date   Jun. 03, 2019            
Roundhill Video Games ETF Class | After Taxes on Distributions                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions              
Average Annual Return, Percent   22.39%       (3.53%)   8.49%
Roundhill Video Games ETF Class | After Taxes on Distributions and Sales                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Shares              
Average Annual Return, Percent   13.53%       (2.52%)   6.95%
Roundhill Sports Betting & iGaming ETF Class                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return Before Taxes              
Average Annual Return, Percent   16.02%       (2.84%) 6.99%  
Performance Inception Date Jun. 03, 2020              
Roundhill Sports Betting & iGaming ETF Class | After Taxes on Distributions                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions              
Average Annual Return, Percent   14.42%       (3.12%) 6.69%  
Roundhill Sports Betting & iGaming ETF Class | After Taxes on Distributions and Sales                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Shares              
Average Annual Return, Percent   9.93%       (2.17%) 5.47%  
Roundhill Ball Metaverse ETF Class                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return Before Taxes              
Average Annual Return, Percent   30.69%     5.16%      
Performance Inception Date Jun. 29, 2021              
Roundhill Ball Metaverse ETF Class | After Taxes on Distributions                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions              
Average Annual Return, Percent   30.64%     5.13%      
Roundhill Ball Metaverse ETF Class | After Taxes on Distributions and Sales                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Shares              
Average Annual Return, Percent   18.21%     4.00%      
Roundhill Cannabis ETF Class                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return Before Taxes              
Average Annual Return, Percent   22.64%   (30.46%)        
Performance Inception Date Apr. 19, 2022              
Roundhill Cannabis ETF Class | After Taxes on Distributions                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions              
Average Annual Return, Percent   22.64%   (30.46%)        
Roundhill Cannabis ETF Class | After Taxes on Distributions and Sales                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Shares              
Average Annual Return, Percent   13.40%   (20.06%)        
Roundhill Magnificent Seven ETF Class                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return Before Taxes              
Average Annual Return, Percent   22.96% 44.67%          
Performance Inception Date Apr. 10, 2023              
Roundhill Magnificent Seven ETF Class | After Taxes on Distributions                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions              
Average Annual Return, Percent   22.25% 44.10%          
Roundhill Magnificent Seven ETF Class | After Taxes on Distributions and Sales                
Prospectus [Line Items]                
Average Annual Return, Label [Optional Text] Return After Taxes on Distributions and Sale of Shares              
Average Annual Return, Percent   13.61% 35.95%          
[1] The Roundhill Video Games Blended Index represents the linked performance of two different performance benchmarks – for periods prior to September 26, 2022, the Roundhill BITKRAFT Esports Index and for periods thereafter, the Nasdaq CTA Global Video Games Software IndexTM, the Fund’s index until September 30, 2025.
[2] The Roundhill Sports Betting & iGaming Blended Index represents the linked performance of two different performance benchmarks – for periods prior to October 2, 2023, the Roundhill Sports Betting & iGaming Index, the Fund’s prior index, and for periods thereafter, the Morningstar® Sports Betting & iGaming Select Index, the Fund’s current index.