Consolidated Statements of Income and Comprehensive Income (Loss) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues:
Total revenues		$ 297,488	$ 263,427	$ 148,376
Cost of revenues:
Cost of revenues	[1]	75,740	68,153	37,344
Amortization of acquired technology		2,748	3,055
Gross profit		219,000	192,219	111,032
Operating expenses:
Selling and marketing	[1]	100,800	95,757	55,455
Product development	[1]	12,348	11,639	7,827
General and administrative	[1]	31,882	34,975	18,983
Restructuring cost for a reduction in force	[1]	4,435
Depreciation, excluding depreciation of $2,758, $1901, $991 included in cost of revenues		7,218	5,634	4,809
Amortization		5,624	9,860	1,137
Total operating expenses		162,307	157,865	88,211
Operating income		56,693	34,354	22,821
Interest and other income (expense), net		861	(23,275)	(317)
Income before provision for income taxes		57,554	11,079	22,504
Provision for income taxes		15,945	10,130	5,436
Net income		41,609	949	17,068
Other comprehensive income (loss), net of tax:
Unrealized loss on investments (net of tax provision effect of $64, $3, and $0, respectively)		(225)	(11)
Foreign currency translation gain (loss)		(9,610)	(1,302)	1,930
Other comprehensive income (loss)		(9,835)	(1,313)	1,930
Comprehensive income (loss)		$ 31,774	$ (364)	$ 18,998
Net income per common share:
Basic		$ 1.41	$ 0.03	$ 0.61
Diluted	[2]	$ 1.30	$ 0.03	$ 0.61
Weighted average common shares outstanding:
Basic		29,589,000	28,434,000	27,855,000
Diluted weighted average shares		34,072,131	29,473,891	28,674,547

[1] Amounts include stock-based compensation expense as follows:

[2] In calculating diluted net income per share, 107 thousand shares, 14 thousand shares, and 0 shares related to outstanding stock options and unvested, undelivered restricted stock units which were excluded for the years ended December 31, 2022, 2021, and 2020, respectively, because they were anti-dilutive. Additionally, in calculating diluted net income per share, weighted average shares include 3.9 million shares, 0 shares, and 0.1 million shares related to the if converted basis of our convertible notes for the years ended December 31, 2022, 2021, and 2020, respectively.