Segments and Information about Revenues by Geographic Region (Tables)
3 Months Ended
Mar. 31, 2015
Segment Reporting [Abstract]  
Reconciliation of Revenue from Segments to Consolidated
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 March 31,
 
2015
 
2014
 
(in thousands)
United States and Canada
$
98,443

 
$
57,766

International
31,702

 
16,785

Total revenues
$
130,145

 
$
74,551