CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE (LOSS) INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue:
Total revenue	[1]	$ 70,836	$ 92,730	$ 135,235	$ 197,007
Cost of revenue:
Total cost of revenue		44,201	47,215	81,921	95,452
Gross profit		26,635	45,515	53,314	101,555
Operating expenses:
Research and development		22,813	20,295	45,486	41,901
Selling, general and administrative		21,970	21,583	44,299	43,463
Total operating expenses		44,783	41,878	89,785	85,364
(Loss) income from operations		(18,148)	3,637	(36,471)	16,191
Other income (expense):
Interest income		274	103	308	217
Interest expense		(3,820)	(3,999)	(7,508)	(7,917)
Gain (loss) on foreign currency, net		816	(231)	543	(978)
Other income, net		161	479	179	551
Total other expense, net		(2,569)	(3,648)	(6,478)	(8,127)
(Loss) income before (benefit from) provision for income taxes		(20,717)	(11)	(42,949)	8,064
(Benefit from) provision for income taxes		(4,020)	3,182	6,332	5,508
Net (loss) income		(16,697)	(3,193)	(49,281)	2,556
Other comprehensive (loss) income -foreign currency translation adjustment, net of tax		(2,065)	593	(1,946)	257
Comprehensive (loss) income		$ (18,762)	$ (2,600)	$ (51,227)	$ 2,813
Net (loss) income per share attributable to common stockholders:
Basic		$ (0.18)	$ (0.04)	$ (0.56)	$ 0.03
Diluted		$ (0.18)	$ (0.04)	$ (0.56)	$ 0.03
Weighted-average shares used to compute net (loss) income per share attributable to common stockholders:
Basic		92,504	85,036	88,565	84,641
Diluted		92,504	85,036	88,565	89,013
Product
Revenue:
Total revenue		$ 59,141	$ 80,469	$ 111,686	$ 174,267
Cost of revenue:
Total cost of revenue		42,882	46,117	79,110	93,143
Service
Revenue:
Total revenue		11,695	12,261	23,549	22,740
Cost of revenue:
Total cost of revenue		$ 1,319	$ 1,098	$ 2,811	$ 2,309

[1] Includes revenue during which a related party relationship existed of $10,550 during the three months ended June 30, 2022 (see Note 15)