Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statements of Operations:
Revenue	$ 488,398	$ 488,098	$ 434,395
Cost of revenue	272,933	265,407	216,568
Gross profit	215,465	222,691	217,827
Operating expenses
Marketing and sales	82,752	82,175	69,309
Research and development	38,222	44,241	36,940
General and administrative	67,544	55,933	51,742
Closure of Japan business	6,922	0	0
Total operating expenses	313,448	182,349	157,991
(Loss) income from operations	(97,983)	40,342	59,836
Other (expense) income, net	106	(158)	3,109
(Loss) income before income taxes	(97,877)	40,184	62,945
Provision for income taxes	5,585	6,812	12,078
Net (loss) income	$ (103,462)	$ 33,372	$ 50,867
Net (loss) income per share:
Basic (in dollars per share)	$ (3.77)	$ 1.21	$ 1.90
Diluted (in dollars per share)	$ (3.77)	$ 1.21	$ 1.89
Shares used to compute net (loss) income per share:
Basic (in shares)	27,409,838	27,617,627	26,737,425
Diluted (in shares)	27,409,838	27,653,099	26,896,357
Other Comprehensive Income (Loss), net of tax
Foreign currency translation adjustments	$ (16,278)	$ (13,278)	$ 3,598
Net unrealized gains (losses) on investments in securities	(1,260)	(119)	0
Comprehensive income (loss)	(121,000)	19,975	54,465
Europe [Member]
Statements of Operations:
Revenue	92,770	90,399	74,796
Operating expenses
Goodwill impairment	$ 118,008	$ 0	$ 0