Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Revenue by Geographic Area

Revenue by geographic area is based on the locations of our partners. The following table sets forth revenue by geographic area (in thousands):

	Year Ended December 31,
	2014		2013		2012
United States	$	32,514	$	42,535	$	34,591
Europe		168,193		106,386		46,600
Total revenue	$	200,707	$	148,921	$	81,191