XML 37 R22.htm IDEA: XBRL DOCUMENT
v3.25.1

FINANCIAL HIGHLIGHTS (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
FINANCIAL HIGHLIGHTS |
Summary of per share performance data and other supplemental financial data | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Three months ended | ​
​ |  | March 31, 2025 |  | March 31, 2024 | ​
​ | ​ | (Unaudited) | ​ | (Unaudited) | ​
Per Share Operating Performance: | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net asset value, beginning of period | ​ | $ | 30.14 | ​ | $ | 27.39 | ​
Total income (loss) | ​ |  | 1.08 | ​ |  | 4.66 | ​
Total expenses | ​ |  | (0.09) | ​ |  | (0.09) | ​
Net increase (decrease) in net asset value | ​ |  | 0.99 | ​ |  | 4.57 | ​
Net asset value, end of period | ​ | $ | 31.13 | ​ | $ | 31.96 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total Return | ​ | ​ | 3.28 | % | ​ | 16.68 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ratios to Average Net Assets | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total income (loss) | ​ | ​ | 5.22 | % | ​ | 15.49 | %
Management fees# | ​ | ​ | 0.75 | % | ​ | 0.75 | %
Total expenses excluding management fees# | ​ | ​ | 0.45 | % | ​ | 0.45 | %
Net income (loss) | ​ | ​ | 4.92 | % | ​ | 15.20 | %
# | Annualized.
​

X
- Definition Schedule of per unit performance data and other financial data Table Text Block. + References No definition available. + Details
Name: | bno_ScheduleOfPerUnitPerformanceDataAndOtherFinancialDataTableTextBlock
Namespace Prefix: | bno_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | bno_SupplementalFinancialInformationDisclosureAbstract
Namespace Prefix: | bno_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration