Segments and Information about Revenues by Geographic Region
6 Months Ended
Jun. 30, 2017
Segment Reporting [Abstract]  
Segments and Information about Revenues by Geographic Area
Segments and Information about Revenues by Geographic Area
The following table presents our revenues by geographic region of end users who purchased products or services for the periods presented below:
 
Three Months Ended June 30,
 
Six Months Ended June 30,
 
2017
 
2016
 
2017
 
2016
 
(in thousands)
United States and Canada
$
146,102

 
$
141,478

 
$
287,598

 
$
265,126

International
66,778

 
57,057

 
125,188

 
105,107

Total revenues
$
212,880

 
$
198,535

 
$
412,786

 
$
370,233