XML 47 R30.htm IDEA: XBRL DOCUMENT
v3.25.0.1

FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS (Details) - USD ($) |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 01, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS |  |  |  |  |  |  |  |  |  |  |
Percentage of contractual obligated to pay |  |  |  |  |  |  |  |  | 0.75% |  |
Registration fees and other offering expenses |  |  |  |  |  |  |  |  | $ 0 | $ 0 | $ 0
Estimated directors fees and expenses |  |  |  |  |  |  |  |  | 9,867 | 17,277 | 14,201
Estimated costs |  |  |  |  |  |  |  |  | $ 212,923 |  |
Investor reporting costs |  |  |  |  |  |  |  |  |  | 154,634 | 135,833
Excess expenses percentage for reimbursement of expenses to others by the entity |  |  |  |  |  |  |  |  | 0.15% |  |
Expense waiver |  | $ 4,772 | $ 14,478 | $ 61,732 | $ 61,010 | $ 48,528 | $ 29,715 | $ 28,970 | $ 80,982 | 168,223 | 163,576
Maximum |  |  |  |  |  |  |  |  |  |  |
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS |  |  |  |  |  |  |  |  |  |  |
Percentage of contractual obligated to pay | 0.75% |  |  |  |  |  |  |  |  |  |
Minimum |  |  |  |  |  |  |  |  |  |  |
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS |  |  |  |  |  |  |  |  |  |  |
Percentage of contractual obligated to pay | 0.60% |  |  |  |  |  |  |  |  |  |
Related Public Funds |  |  |  |  |  |  |  |  |  |  |
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS |  |  |  |  |  |  |  |  |  |  |
Estimated directors fees and expenses |  |  |  |  |  |  |  |  | $ 916,574 | 1,210,000 | 1,258,000
Licensing Agreements |  |  |  |  |  |  |  |  |  |  |
FEES PAID BY THE FUND AND RELATED PARTY TRANSACTIONS |  |  |  |  |  |  |  |  |  |  |
Fee percentage |  |  |  |  |  |  |  |  | 0.015% |  |
Licensing fee incurred |  |  |  |  |  |  |  |  | $ 4,286 | $ 2,620 | $ 5,325

X
- Definition Amount of percentage of base fee. + References No definition available. + Details
Name: | unl_BaseFeePercentage
Namespace Prefix: | unl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of costs are estimated. + References No definition available. + Details
Name: | unl_EstimatedCosts
Namespace Prefix: | unl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Excess expenses percentage for reimbursement of expenses to others by the entity. + References No definition available. + Details
Name: | unl_ExcessExpensesPercentageForReimbursementToOthersPercentage
Namespace Prefix: | unl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of expenses waived during the period. + References No definition available. + Details
Name: | unl_ExpenseWaiver
Namespace Prefix: | unl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | unl_FeesPaidAndRelatedPartyTransactionsLineItems
Namespace Prefix: | unl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investor reporting costs. + References No definition available. + Details
Name: | unl_InvestorReportingCosts
Namespace Prefix: | unl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of license fees and other offering expenses. + References No definition available. + Details
Name: | unl_LicenseFeesAndOtherOfferingExpenses
Namespace Prefix: | unl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The information pertaining to percentage of contractual obligation pay. + References No definition available. + Details
Name: | unl_PercentageOfContractualObligatedToPay
Namespace Prefix: | unl_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Noninterest expense related to directors' fees which are fees paid by an Entity to its directors. Directors' fees may be paid in addition to salary and other benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(14)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
Name: | us-gaap_NoninterestExpenseDirectorsFees
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Includes offering costs of open-end investment companies, and closed-end funds with a continuous offering period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(14)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
Name: | us-gaap_NoninterestExpenseOfferingCost
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=unl_RelatedPublicFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=us-gaap_LicensingAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |