XML 42 R14.htm IDEA: XBRL DOCUMENT
v3.2.0.727

FINANCIAL HIGHLIGHTS | 6 Months Ended
--- | ---
Jun. 30, 2015
Financial Highlights [Abstract] |
Financial Highlights | NOTE 6 — FINANCIAL HIGHLIGHTS The following table presents per share performance data and other supplemental financial data for the six months ended June 30, 2015 and 2014 for the shareholders. This information has been derived from information presented in the condensed financial statements.
|  | For the six months ended |  |  | For the six months ended |
|  | June 30, 2015 |  |  | June 30, 2014 |
|  | (Unaudited) |  |  | (Unaudited) |
Per Share Operating Performance: |  |  |  |  |  |  |  |
Net asset value, beginning of period |  | $ | 13.69 |  |  | $ | 18.32 |
Total income (loss) |  |  | (0.81) |  |  |  | 1.33 |
Net expenses |  |  | (0.06) |  |  |  | (0.09) |
Net decrease in net asset value |  |  | (0.87) |  |  |  | 1.24 |
Net asset value, end of period |  | $ | 12.82 |  |  | $ | 19.56 |
Total Return |  |  | (6.36) | % |  |  | 6.77 | %
Ratios to Average Net Assets |  |  |  |  |  |  |  |
Total income (loss) |  |  | (3.57) | % |  |  | 10.27 | %
Management fees* |  |  | 0.75 | % |  |  | 0.75 | %
Total expenses excluding management fees* |  |  | 0.62 | % |  |  | 0.95 | %
Expenses waived* |  |  | (0.47) | % |  |  | (0.74) | %
Net expenses excluding management fees* |  |  | 0.15 | % |  |  | 0.21 | %
Net income (loss) |  |  | (4.01) | % |  |  | 9.79 | %
| * | Annualized
Total returns are calculated based on the change in value during the period. An individual shareholder’s total return and ratio may vary from the above total returns and ratios based on the timing of contributions to and withdrawals from UNL.

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

X
- Definition Supplemental Financial Information Disclosure + References No definition available. + Details
Name: | unl_SupplementalFinancialInformationDisclosureTextBlock
Namespace Prefix: | unl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration