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Segment Information (Tables)
 9 Months Ended
Sep. 30, 2016
Segment Reporting [Abstract]  
Summary of Revenues on Percentage Basis by Geographic Regions

The following table summarizes revenues on a percentage basis by geographic regions, based on the region in which the customer is located.

 

 

 

Quarter Ended September 30,

 

 

Nine Months Ended September 30,

 

 

 

2016

 

 

2015

 

 

2016

 

 

2015

 

United States

 

 

59

%

 

 

67

%

 

 

62

%

 

 

65

%

South America

 

 

11

%

 

 

11

%

 

 

11

%

 

 

13

%

Japan

 

 

3

%

 

 

2

%

 

 

2

%

 

 

2

%

Europe

 

 

21

%

 

 

19

%

 

 

19

%

 

 

19

%

Other

 

 

6

%

 

 

1

%

 

 

6

%

 

 

1

%

 

 

 

100

%

 

 

100

%

 

 

100

%

 

 

100

%