CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Unaudited - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities
Net loss	$ (1,534,081)	$ (408,105)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	26,621	5,447
Amortization of insurance premium	7,184	0
Non-cash operating lease cost	8,629
Stock-based compensation	366,200	3,257
Loss on disposal of property and equipment	56	139
Change in fair value of contingent forward contract liability	454,546	8,719
Change in fair value of convertible preferred stock warrant liability		200
Changes in operating assets and liabilities:
Accounts receivable	(1)	(163)
Inventory	(60,112)	(1,863)
Financed insurance premium	(41,935)	0
Prepaid expenses	(23,762)	9,556
Other current assets	8,299	3,254
Other noncurrent assets and security deposit	(5,861)	(9,324)
Accounts payable	(14,175)	(30,109)
Accrued compensation	12,752	8,880
Operating lease liability	(4,516)
Other liabilities and accrued liabilities	17,834	22,732
Other long-term liabilities	5,158	10,002
Net cash used in operating activities	(745,401)	(377,407)
Cash flows from investing activities:
Purchases of property, equipment, and software	(299,313)	(355,860)
Proceed from sale of property, equipment, and software	19	0
Net cash used in investing activities	(299,294)	(355,860)
Cash flows from financing activities:
Payment for short-term insurance financing note	(16,819)	0
Payment for capital lease liabilities		(174)
Payment for finance lease liabilities	(1,915)
Proceeds from short-term insurance financing note	41,935	0
Proceeds from exercise of stock options	6,027	2,886
Proceeds from the exercise of public warrants	173,273	0
Proceeds from the reverse recapitalization	4,439,153	0
Payment of transaction costs related to the reverse recapitalization	(4,811)	0
Net cash provided by financing activities	5,236,843	892,575
Net increase in cash, cash equivalents, and restricted cash	4,192,148	159,308
Beginning cash, cash equivalents, and restricted cash	640,418	379,651
Ending cash, cash equivalents, and restricted cash	4,832,566	538,959
Supplemental disclosure of cash flow information:
Cash paid for interest	324	21
Supplemental disclosure of non-cash investing and financing activity:
Property and equipment included in accounts payable and accrued expense	5,756	81,011
Leased assets obtained in exchange for new finance lease liabilities	70,756
Issuance of Series D convertible preferred stock upon exercise of preferred stock warrants	9,936
Issuance of Series E convertible preferred stock contingent forward contracts	2,167,332	793
Capital contribution upon forfeit of Series E awards	15,719	0
Issuance of common stock upon conversion of preferred stock in connection with the reverse recapitalization	5,836,785	0
Transaction costs related to the reverse recapitalization not yet paid	34,054	0
Convertible Preferred Stock Warrant Liability
Adjustments to reconcile net loss to net cash used in operating activities:
Change in fair value of convertible preferred stock warrant liability	6,976	171
Common Stock Warrant Liability
Adjustments to reconcile net loss to net cash used in operating activities:
Change in fair value of convertible preferred stock warrant liability	24,787	0
Series B
Cash flows from financing activities:
Payments for repurchase of convertible preferred stock	(3,000)	0
Series C
Cash flows from financing activities:
Payments for repurchase of convertible preferred stock	0	(9,861)
Series D
Cash flows from financing activities:
Proceeds from issuance of convertible preferred shares	3,000	400,000
Supplemental disclosure of non-cash investing and financing activity:
Issuance of Series D convertible preferred stock upon settlement of contingent forward contracts		39,563
Series E
Cash flows from financing activities:
Proceeds from issuance of convertible preferred shares	600,000	499,724
Supplemental disclosure of non-cash investing and financing activity:
Issuance of Series E convertible preferred stock upon settlement of contingent forward contracts	$ 2,621,878	$ 0