Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Revenue		$ 471,883	$ 359,370	$ 310,056
Costs and operating expenses:
Cost of revenue (exclusive of depreciation and amortization)	[1]	191,826	143,944	119,029
Sales and marketing	[1]	107,398	73,200	58,445
Research and product development	[1]	111,118	65,980	48,529
General and administrative	[1]	100,792	57,279	47,480
Depreciation and amortization		33,119	30,845	26,790
Total costs and operating expenses		544,253	371,248	300,273
(Loss) income from operations		(72,370)	(11,878)	9,783
Other income, net		4,469	13,111	188,897
Interest income (expense), net		1,184	501	(1,849)
(Loss) income before provision for income taxes		(66,717)	1,734	196,831
Provision for income taxes		1,402	706	38,428
Net (loss) income		$ (68,119)	$ 1,028	$ 158,403
Net (loss) income per common share:
Basic (in dollars per share)		$ (1.95)	$ 0.03	$ 4.62
Diluted (in dollars per share)		$ (1.95)	$ 0.03	$ 4.44
Weighted average common shares outstanding:
Basic (in shares)		35,010	34,578	34,264
Diluted (in shares)		35,010	35,701	35,713

[1] (1) Includes stock-based compensation expense as follows: Year Ended December 31,202220212020Stock-based compensation expense included in costs and operating expenses:Cost of revenue (exclusive of depreciation and amortization)$2,640 $2,024 $1,506 Sales and marketing8,681 2,329 1,415 Research and product development16,030 5,457 1,818 General and administrative13,584 5,531 4,286 Total stock-based compensation expense$40,935 $15,341 $9,025