Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Net revenue	$ 71,990	$ 81,031
Cost of revenue	46,599	52,936
Gross profit	25,391	28,095
Operating expenses:
Research and product development	11,844	11,119
Selling, marketing, general and administrative	17,742	31,824
Restructuring and other charges	436	6,252
Impairment of long-lived assets		1,735
Amortization of intangible assets	294	262
Total operating expenses	30,316	51,192
Operating loss	(4,925)	(23,097)
Interest income	37	42
Interest expense	(127)	(249)
Other income (expense), net	(800)	972
Loss before income taxes	(5,815)	(22,332)
Income tax provision	1,771	893
Net loss	(7,586)	(23,225)
Foreign currency translation adjustments	(268)	(2,270)
Actuarial loss		(28)
Comprehensive loss	$ (7,854)	$ (25,523)
Net loss per share
Basic	$ (0.28)	$ (0.92)
Diluted	$ (0.28)	$ (0.92)
Weighted average shares outstanding
Basic	27,530	25,252
Diluted	27,530	25,252