CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Consolidated Statements of Operations
Revenue	$ 44,591	$ 26,488	$ 87,489	$ 53,376
Cost of revenue	10,026	6,891	22,165	14,834
Gross profit	34,565	19,597	65,324	38,542
Operating expenses:
Advertising and marketing	12,278	7,804	24,894	15,854
Sales	7,324	5,860	15,312	11,130
Technology and development	7,537	4,829	14,049	10,054
Legal	277	1,193	620	2,315
Regulatory	987	772	1,994	1,620
Acquisition related costs	2,113	763	2,113	763
General and administrative	15,873	11,280	30,361	22,917
Depreciation and amortization	2,668	1,558	5,275	3,066
Loss from operations	(14,492)	(14,462)	(29,294)	(29,177)
Interest expense, net	774	407	1,476	834
Net loss before taxes	(15,266)	(14,869)	(30,770)	(30,011)
Income tax provision	(149)	(10)	(299)	(172)
Net loss	$ (15,415)	$ (14,879)	$ (31,069)	$ (30,183)
Net loss per share, basic and diluted	$ (0.28)	$ (0.38)	$ (0.58)	$ (0.78)
Weighted-average shares used to compute basic and diluted net loss per share	54,572,862	38,717,186	53,389,435	38,650,765