Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Statement [Abstract]
Revenue	$ 36,295	$ 32,416
Expenses:
Cost of revenue	14,003	15,116
Sales and marketing	11,426	10,592
Technology and development	10,696	9,716
General and administrative	10,897	10,280
Total expenses	47,022	45,704
Loss from operations	(10,727)	(13,288)
Other (income) expense:
Interest income, net	(144)	(193)
Other income	(9)	(142)
Foreign exchange (gain) loss, net	(698)	301
Total other income, net	(851)	(34)
Loss before income taxes	(9,876)	(13,254)
Benefit for income taxes	(201)	(708)
Net loss	$ (9,675)	$ (12,546)
Net loss per share:
Basic and Diluted (usd per share)	$ (0.18)	$ (0.24)
Weighted average shares used to compute net loss per share:
Basic and Diluted (in shares)	54,866	51,577