Organization and Description of Business (Tables)
 12 Months Ended
Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of capital accounts
Our capital accounts were distributed as follows at December 31:
 
 
2015
 
2014
Common units held by the Public
 
47.1
%
 
42.8
%
Common units held by USDG
 
4.7
%
 
5.1
%
Subordinated units held by USDG
 
45.4
%
 
49.1
%
Class A units held by management
 
0.8
%
 
1.0
%
General partner interest held by USD Partners GP LLC
 
2.0
%
 
2.0
%
 
 
100.0
%
 
100.0
%