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Segment and Geographic Information
 9 Months Ended
Sep. 30, 2017
Segment Reporting [Abstract]  
Segment and Geographic Information
Segment and Geographic Information
The following table summarizes revenue by geography for the three and nine months ended September 30, 2017 and 2016 (in thousands): 
 
Three Months Ended September 30,
 
Nine Months Ended September 30,
 
2017
 
2016
 
2017
 
2016
Domestic
$
31,878

 
$
23,650

 
$
93,860

 
$
80,715

International
12,770

 
7,095

 
32,315

 
18,461

Total
$
44,648

 
$
30,745

 
$
126,175

 
$
99,176


With respect to geographic information, revenue is attributed to respective geographies based on the contracting address of the customer. There were no individual foreign countries from which more than 10% of our total revenue was attributable for the three and nine months ended September 30, 2017 and 2016. Substantially all of our long-lived assets were held in the United States as of September 30, 2017 and December 31, 2016.