ORGANIZATION AND DESCRIPTION OF BUSINESS - General (Details)	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016
Limited Partners' Capital Account [Line Items]
Limited partner interest (as a percent)	100.00%	100.00%
Common units
Limited Partners' Capital Account [Line Items]
Limited partner interest (as a percent)	54.10%	47.50%
Class A units
Limited Partners' Capital Account [Line Items]
Limited partner interest (as a percent)	0.30%	0.60%
USDG \| Common units
Limited Partners' Capital Account [Line Items]
Limited partner interest (as a percent)	20.00%	13.80%
USDG \| Subordinated units
Limited Partners' Capital Account [Line Items]
Limited partner interest (as a percent)	23.90%	36.10%
USD Partners GP LLC \| Common units
Limited Partners' Capital Account [Line Items]
General partner interest (as a percent)	1.70%	2.00%

Percentage investment held by the managing member or general partner of the limited liability company (LLC) or limited partnership (LP).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

+ Details

Name:	us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPManagingMemberOrGeneralPartnerOwnershipInterest
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP).

+ References

+ Details

Name:	us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

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

- Details

Name:	us-gaap_LimitedPartnersCapitalAccountByClassAxis=usdp_CommonUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LimitedPartnersCapitalAccountByClassAxis=usdp_ClassAUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=usdp_USDGroupLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LimitedPartnersCapitalAccountByClassAxis=usdp_SubordinatedUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=usdp_USDPartnersGPLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: