XML 44 R29.htm IDEA: XBRL DOCUMENT v3.25.1

CONTRACTS AND AGREEMENTS - Additional Information (Details) - $ / item		3 Months Ended
	Oct. 01, 2022	Mar. 31, 2025
CONTRACTS AND AGREEMENTS
Fee percentage		0.015%
Minimum
CONTRACTS AND AGREEMENTS
Commissions per round-turn trade, including applicable exchange and NFA fees for Oil Futures Contracts and options on Oil Futures Contracts		7
Maximum
CONTRACTS AND AGREEMENTS
Commissions per round-turn trade, including applicable exchange and NFA fees for Oil Futures Contracts and options on Oil Futures Contracts		8
Marketing Agreement
CONTRACTS AND AGREEMENTS
Percentage of total net assets	0.025%
Marketing Agreement | Maximum
CONTRACTS AND AGREEMENTS
Fee percentage		10.00%

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

Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 944
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479808/944-20-55-15

+ Details

Name:	us-gaap_LongDurationContractsAssumptionsByProductAndGuaranteeLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of base fee.

+ References

No definition available.

+ Details

Name:	usl_BaseFeePercentage
Namespace Prefix:	usl_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of commissions paid.

+ References

No definition available.

+ Details

Name:	usl_CommissionsPaid
Namespace Prefix:	usl_
Data Type:	srt-types:perUnitItemType
Balance Type:	na
Period Type:	duration

X

- Definition

It's represented of percentage of total net assets.

+ References

No definition available.

+ Details

Name:	usl_PercentageOfTotalNetAssets
Namespace Prefix:	usl_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=usl_MarketingAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: