Consolidated Statements of Income and Comprehensive Income (Loss) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenues:		$ 229,963	$ 297,488	$ 263,427
Cost of revenues:
Cost of revenues	[1]	72,776	75,740	68,153
Amortization of acquired technology		2,761	2,748	3,055
Gross profit		154,426	219,000	192,219
Operating expenses:
Selling and marketing	[1]	97,161	100,800	95,757
Product development	[1]	10,911	12,348	11,639
General and administrative	[1]	34,097	31,882	34,975
Restructuring cost for a reduction in force	[1]	0	4,435	0
Depreciation, excluding depreciation of $3,846, $2,758, $1,901 included in cost of revenues		8,527	7,218	5,634
Amortization		5,999	5,624	9,860
Total operating expenses		156,695	162,307	157,865
Operating income (loss)		(2,269)	56,693	34,354
Interest and other income (expense), net		11,655	861	(23,275)
Gain from early extinguishment of debt		5,033	0	0
Income before provision for income taxes		14,419	57,554	11,079
Provision for income taxes		9,958	15,945	10,130
Net income		4,461	41,609	949
Other comprehensive income (loss), net of tax:
Unrealized income (loss) on investments (net of tax provision effect of $(228), $64, and $3, respectively)		808	(225)	(11)
Foreign currency translation gain (loss)		4,187	(9,610)	(1,302)
Other comprehensive income (loss)		4,995	(9,835)	(1,313)
Comprehensive income (loss)		$ 9,456	$ 31,774	$ (364)
Net income per common share:
Basic		$ 0.16	$ 1.41	$ 0.03
Diluted	[2]	$ 0.16	$ 1.3	$ 0.03
Weighted average common shares outstanding:
Basic		28,328,000	29,589,000	28,434,000
Diluted weighted average shares		28,494,544	34,072,131	29,473,891

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

[2] In calculating diluted net income per share, 1.3 million shares, 107 thousand shares, and 14 thousand shares related to outstanding stock options and unvested, undelivered restricted stock units which were excluded for the years ended December 31, 2023, 2022, and 2021, respectively, because they were anti-dilutive. Additionally, in calculating diluted net income per share, weighted average shares includes 3.9 million shares related to the if converted basis of our convertible notes for the year ended December 31, 2022. There was no such adjustment for 2023 or 2021 due to the anti-dilutive nature of the add-back.