XML 42 R28.htm IDEA: XBRL DOCUMENT v3.22.2.2

CONTRACTS AND AGREEMENTS - Additional Information (Details) $ in Billions		9 Months Ended
	Oct. 01, 2022	Sep. 30, 2022 USD ($) $ / item
Maximum
Long Duration Contracts Assumptions By Product And Guarantee
Commissions per round-turn trade, including applicable exchange and NFA fees for Oil Futures Contracts and options on Oil Futures Contracts | $ / item		8
Minimum
Long Duration Contracts Assumptions By Product And Guarantee
Commissions per round-turn trade, including applicable exchange and NFA fees for Oil Futures Contracts and options on Oil Futures Contracts | $ / item		7
Marketing Agreement | Maximum
Long Duration Contracts Assumptions By Product And Guarantee
Fee percentage		10.00%
Marketing Agreement | USL's assets up to $3 billion
Long Duration Contracts Assumptions By Product And Guarantee
Fee percentage		0.06%
Marketing Agreement | USL's assets up to $3 billion | Maximum
Long Duration Contracts Assumptions By Product And Guarantee
Base amount for determining fee percentage | $		$ 3
Marketing Agreement | USL's assets in excess of $3 billion
Long Duration Contracts Assumptions By Product And Guarantee
Fee percentage		0.04%
Percentage of total net assets	0.025%
Marketing Agreement | USL's assets in excess of $3 billion | Minimum
Long Duration Contracts Assumptions By Product And Guarantee
Base amount for determining fee percentage | $		$ 3

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:	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 base fee.

+ References

No definition available.

+ Details

Name:	usl_BasisAmountForFeePercentage
Namespace Prefix:	usl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

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

Its Represent 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_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_TypeOfArrangementAxis=usl_MarketingAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=usl_GroupFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentTypeAxis=usl_GroupFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: