Segment Information (Tables)

6 Months Ended

Jun. 30, 2016

Segment Information

Summary of total revenue from customers by geographic region

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2016		2015		2016		2015
	(In thousands)				(In thousands)
United States	$	69,644	$	60,692	$	140,139	$	118,409
Outside of the United States		12,330		9,927		22,729		20,362
Total revenues	$	81,974	$	70,619	$	162,868	$	138,771