CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Cash Flows from Operating Activities:
Net loss	$ (126,412)	$ (134,568)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	2,832	3,160
Stock-based compensation	9,778	5,143
Foreign currency transaction loss	390	2,087
Fair value adjustment of earnout liability	(1,720)	(6,029)
Loss on issuance of July 2024 warrants	567	0
Issuance costs, July 2024 warrants	680	0
Impairment and losses of investments	9,145	172
Inventory write-downs	18,468	4,781
Impairment of property and equipment	11,178	2,119
Gain on sales of property and equipment	147	0
Gain on lease termination	(2,096)	0
Gain on disposal of auctioned assets	(1,721)	0
Gain on deconsolidation of subsidiary, net of cash disposed	(4,292)	0
Accretion of discount on available-for-sale debt securities	0	(1,452)
Restructuring and related charges	1,272	4,885
Other	(34)	0
Changes in operating assets and liabilities:
Accounts receivable	281	(264)
Unbilled receivable	1,561	0
Inventory	2,247	(9,411)
Prepaid expenses and other current assets	2,460	4,087
Other assets	249	343
Accounts payable	445	(9,176)
Accrued liabilities	(6,686)	(2,763)
Related party payables, net	599	6,023
Contract liabilities	(7,005)	3,089
Other liabilities	(70)	16,263
Net cash used in operating activities	(87,969)	(112,072)
Cash Flows from Investing Activities:
Purchases of property and equipment	(2,858)	(5,951)
Proceeds from sales of property and equipment and other auctioned assets	4,959	0
Purchases of short-term investments	(30,000)	(16,594)
Proceeds from maturities of short-term investments	30,000	134,905
Proceeds from sale of short-term investments	0	50,021
Net cash provided by investing activities	2,101	162,381
Cash Flows from Financing Activities:
Exercise of stock options	0	18
Payment of finance lease liability	0	(237)
Proceeds from issuance of common stock and warrants, net of issuance cost	3,820	0
Net share settlement of equity awards	(1,184)	(152)
Net cash provided by (used in) financing activities	2,636	(371)
Effect of exchange rate changes on cash	(345)	(377)
Net change in cash, cash equivalents, and restricted cash	(83,577)	49,561
Cash, cash equivalents, and restricted cash — Beginning	118,101	66,790
Cash, cash equivalents, and restricted cash — Ending	34,524	116,351
Private Placement
Adjustments to reconcile net loss to net cash used in operating activities:
Fair value adjustment of private placement warrant liability	0	(561)
July 2024 warrant liability
Adjustments to reconcile net loss to net cash used in operating activities:
Fair value adjustment of private placement warrant liability	$ (232)	$ 0