Segment Information - Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting Information [Line Items]
Stock-based compensation expense			$ (38,515)	$ (75,710)
Depreciation and amortization			(5,129)	(8,335)
Interest income	$ 9,298	$ 5,545	28,922	7,912
Other income (expense), net	(77)	127	(975)	169
Loss before provision for income taxes	(61,436)	(113,161)	(220,687)	(333,659)
Operating Segments
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA	(57,406)	(92,780)	(191,790)	(255,691)
Operating Segments | United States
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA	(29,231)	(68,249)	(119,853)	(192,132)
Operating Segments | Asia-Pacific
Segment Reporting Information [Line Items]
Total Segment Adjusted EBITDA	(28,175)	(24,531)	(71,937)	(63,559)
Segment Reconciling Items
Segment Reporting Information [Line Items]
Stock-based compensation expense	(10,751)	(23,032)	(41,071)	(75,710)
Depreciation and amortization	(1,707)	(2,874)	(4,500)	(8,335)
Restructuring expenses	(793)	0	(11,220)	(1,568)
Finance lease interest expense included within cost of revenue	0	(147)	(53)	(436)
Interest income	9,298	5,545	28,922	7,912
Other income (expense), net	(77)	127	(975)	169
Loss before provision for income taxes	$ (61,436)	$ (113,161)	$ (220,687)	$ (333,659)