XML 16 R1.htm IDEA: XBRL DOCUMENT v3.21.1
Document and Entity Information - shares
 3 Months Ended
Mar. 31, 2021
Apr. 26, 2021
Document and Entity Information    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Entity File Number 001-34704  
Entity Tax Identification Number 27-0925904  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 1850 Mt. Diablo Boulevard, Suite 640  
Entity Address, City or Town Walnut Creek  
Entity Address, State or Province CA  
Entity Address, Postal Zip Code 94596  
City Area Code 510  
Local Phone Number 522-9600  
Security Exchange Name NYSE  
Amendment Flag false  
Document Period End Date Mar. 31, 2021  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q1  
Entity Registrant Name United States Brent Oil Fund, LP  
Entity Central Index Key 0001472494  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Trading Symbol BNO  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   19,450,000
Title of 12(b) Security Shares of United States Brent Oil Fund, LP