CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities:
Net loss	$ (135,020)	$ (17,193)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	4,066	1,420
Non-cash interest expense on convertible debt	0	389
Write-down of inventories	0	582
Stock-based compensation expense	27,428	38,769
Change in fair value of warrant liabilities	(8,881)	(130,528)
Other	750	665
Changes in operating assets and liabilities:
Accounts receivable	(39)	(3,674)
Inventories	(21,421)	1,432
Prepaid expenses and other assets	(498)	(8,896)
Vendor advances	9,555	(5,615)
Accounts payable	(3,121)	(11,276)
Deferred revenue	971	5,660
Accrued purchase commitments	(15,578)	(23,021)
Change in operating lease assets and liabilities	1,772	(872)
Accrued expenses and other liabilities	(240)	5,748
Net cash used in operating activities	(140,256)	(146,410)
Cash flows from investing activities:
Purchases of marketable securities	(75,118)	(1,018,095)
Sales of marketable securities	0	702,152
Purchases of property and equipment, including capitalized software	(16,180)	(3,826)
Net cash used in investing activities	(91,298)	(319,769)
Cash flows from financing activities:
Proceeds from exercise of stock options and warrants	2,844	19,314
Net proceeds from equity infusion from the Business Combination	0	548,403
Payment of loan payable	0	(4,366)
Other financing activities	(100)	(52)
Net cash provided by financing activities	2,744	563,299
Net (decrease) increase in cash, cash equivalents and restricted cash	(228,810)	97,120
Cash, cash equivalents and restricted cash, beginning of period	426,841	60,206
Cash, cash equivalents and restricted cash, end of period	$ 198,031	$ 157,326