Geographic Information (Tables)

12 Months Ended

Dec. 31, 2016

Revenues from External Customers and Long-Lived Assets [Line Items]

Revenue from External Customers by Geographic Areas [Table Text Block]

Revenue by geography are based on the location of the Company's sellers. The Company's revenue by geographical region was as follows:

	Year Ended
	December 31, 2016		December 31, 2015		December 31, 2014
	(in thousands)
United States only	$	182,777	$	172,188	$	73,277
United Kingdom	20,778		20,355		16,047
Other international	74,666		55,941		35,971
Total	$	278,221	$	248,484	$	125,295

Long-lived Assets by Geographic Areas

The Company’s property and equipment, net by geographical region was as follows:

	December 31, 2016		December 31, 2015		December 31, 2014
	(in thousands)
United States	$	29,032	$	21,782	$	12,680
Other international	7,214		3,621		2,516
Total	$	36,246	$	25,403	$	15,196