Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenue	$ 404,127	$ 418,515	$ 346,935
Cost and operating expenses:
Cost of revenue	23,980	23,949	21,373
Sales and marketing	349,255	354,990	284,880
Research and development	31,713	35,732	29,662
General and administrative	28,102	24,703	20,444
Acquisition-related costs	(4,135)	1,065	2,258
Total cost and operating expenses	428,915	440,439	358,617
Loss from operations	(24,788)	(21,924)	(11,682)
Other income (expense):
Interest income	349	37	189
Other income (expense), net	23	(57)	291
Total other income (expense), net	372	(20)	480
Loss before income taxes	(24,416)	(21,944)	(11,202)
Benefit from income taxes		2,510
Net loss	$ (24,416)	$ (19,434)	$ (11,202)
Net loss per share, basic	$ (0.77)	$ (0.67)	$ (0.41)
Net loss per share, diluted	$ (0.77)	$ (0.67)	$ (0.41)
Weighted average common shares outstanding, basic	31,613	29,088	27,329
Weighted average common shares outstanding, diluted	31,613	29,088	27,329
Net loss	$ (24,416)	$ (19,434)	$ (11,202)
Other comprehensive income (loss):
Foreign currency translation adjustment	(16)	17	(7)
Comprehensive loss	$ (24,432)	$ (19,417)	$ (11,209)