Major Customers and Concentration of Credit Risk
 12 Months Ended
Dec. 31, 2015
Risks and Uncertainties [Abstract]  
Major Customers and Concentration of Credit Risk
MAJOR CUSTOMERS AND CONCENTRATION OF CREDIT RISK
The following table provides the percentage of total revenues attributable to a single customer from which 10% or more of total revenues are derived:
 
Total Revenues by Major Customer
(in thousands)
 
Percentage of Total Company Revenues
 
Percentage of Customer Revenues in Terminalling Services Segment
 
Percentage of Customer Revenues in Fleet Services Segment
Customer A
$
12,207

 
14.9
%
 
98
%
 
2
%
Customer B
$
11,428

 
14.0
%
 
100
%
 
0
%
Customer C
$
9,890

 
12.1
%
 
90
%
 
10
%
Customer D
$
10,402

 
12.7
%
 
50
%
 
50
%
Customer E
$
8,763

 
10.7
%
 
100
%
 
0
%
Customer F
$
8,859

 
10.8
%
 
0
%
 
100
%


A substantial portion of our revenues are from a limited number of customers. Our revenues are derived mainly from railcar loading and unloading services for bulk liquid products, switching, other terminalling services, and railcar fleet services. The industry concentration of these customers may impact our overall exposure to credit risk, either positively or negatively, since our customers may be similarly affected by changes in commodity prices, regulation, and other economic factors. We seek high-quality customers with investment grade credit ratings and perform ongoing credit evaluations of our customers.