CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net loss	$ (2,713,942)	$ (2,828,420)	$ (1,304,460)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	295,337	233,531	186,583
Amortization of insurance premium	33,330	39,507	35,620
Non-cash operating lease cost	30,765	26,201	19,711
Stock-based compensation	285,872	257,283	423,500
Inventory and firm purchase commitments write-downs	590,198	906,069	569,479
Change in fair value of common stock warrant liability	(34,150)	(86,926)	(1,254,218)
Change in fair value of equity securities of a related party	43,057	(5,999)	0
Change in fair value of derivative liabilities associated with redeemable convertible preferred stock (related party)	(155,350)	0	0
Net accretion of investment discounts/premiums	(76,739)	(105,432)	(20,695)
Other non-cash items	5,983	34,205	10,353
Changes in operating assets and liabilities:
Accounts receivable (including $(22,383), $(35,526), and nil from a related party for the years ended December 31, 2024, 2023, and 2022, respectively)	(61,279)	(32,509)	(16,498)
Inventory	(334,242)	(658,010)	(1,256,349)
Prepaid expenses	(16,675)	(45,641)	(28,822)
Other current assets	(141,110)	4,758	(43,591)
Other noncurrent assets	(62,759)	(121,790)	(43,230)
Accounts payable	34,756	(139,519)	180,469
Other current liabilities	131,627	(42,508)	284,862
Other long-term liabilities (including $4,900, $107,763, and nil associated with a related party for the years ended December 31, 2024, 2023, and 2022, respectively)	125,647	75,447	31,028
Net cash used in operating activities	(2,019,674)	(2,489,753)	(2,226,258)
Cash flows from investing activities:
Purchases of property, plant and equipment (including $(164,683), $(80,511), and $(18,834) from a related party for the years ended December 31, 2024, 2023, and 2022, respectively)	(883,841)	(910,644)	(1,074,852)
Purchases of investments (including $(35,000), nil, and nil from a related party for the years ended December 31, 2024, 2023, and 2022, respectively)	(4,622,890)	(3,998,282)	(3,854,129)
Proceeds from maturities of investments	4,112,084	3,720,890	1,149,714
Proceeds from sale of investments	100,193	148,388	0
Proceeds from government grant	0	97,500	97,267
Other investing activities	0	(4,827)	323
Net cash used in investing activities	(1,294,454)	(946,975)	(3,681,677)
Cash flows from financing activities:
Payment for issuance costs	(6,244)	0	(6,631)
Payment for short-term insurance financing note	0	0	(15,330)
Payment for finance lease liabilities	(3,166)	(5,425)	(4,977)
Proceeds from borrowings from a related party	79,844	62,911	29,818
Repayment of borrowings to a related party	(25,856)	0	(20,223)
Proceeds from failed sale-leaseback transaction	0	0	31,700
Proceeds from exercise of stock options	4,883	10,343	17,788
Proceeds from employee stock purchase plan	19,208	23,836	24,562
Tax withholding payments for net settlement of employee awards	(10,021)	(17,615)	(218,789)
Net cash provided by financing activities	3,549,673	3,070,915	1,347,235
Net increase (decrease) in cash, cash equivalents, and restricted cash	235,545	(365,813)	(4,560,700)
Beginning cash, cash equivalents, and restricted cash	1,371,507	1,737,320	6,298,020
Ending cash, cash equivalents, and restricted cash	1,607,052	1,371,507	1,737,320
Supplemental disclosure of cash flow information:
Cash paid for interest, net of amounts capitalized	25,526	18,182	23,199
Cash paid for taxes	88	37	480
Supplemental disclosure of non-cash investing and financing activity:
Increases (decrease) in accounts payable and accrued liabilities related to property, plant and equipment (including $(19,725), $8,530 and $11,196 associated with a related party for the years ended December 31, 2024, 2023 and 2022, respectively)	(68,930)	35,849	42,728
Government grant (related party) reflected in property, plant and equipment	(62,471)	(99,025)	(33,297)
Property, plant and equipment and right-of-use assets obtained through leases	24,173	32,477	157,894
Equity securities obtained through Strategic Technology Arrangement	0	73,193	0
Series A Redeemable Convertible Preferred Stock
Cash flows from financing activities:
Proceeds from issuance of redeemable convertible preferred stock to a related party	1,000,000	0	0
Payments of issuance costs for redeemable convertible preferred stock	(2,351)	0	0
Series B Redeemable Convertible Preferred Stock
Cash flows from financing activities:
Proceeds from issuance of redeemable convertible preferred stock to a related party	750,000	0	0
Payments of issuance costs for redeemable convertible preferred stock	(641)	0	0
2024 Underwriting Agreement
Cash flows from financing activities:
Proceeds from issuance of common stock	718,357	0	0
2024 Subscription Agreement
Cash flows from financing activities:
Proceeds from issuance of common stock	1,025,660	0	0
2023 Underwriting Agreement
Cash flows from financing activities:
Proceeds from issuance of common stock	0	1,184,224	0
2023 Subscription Agreement
Cash flows from financing activities:
Proceeds from issuance of common stock	0	1,812,641	0
At-the-Market Offering
Cash flows from financing activities:
Proceeds from issuance of common stock	0	0	594,317
2022 Subscription Agreement
Cash flows from financing activities:
Proceeds from issuance of common stock	0	0	915,000
Change in fair value of common stock warrant liability
Adjustments to reconcile net loss to net cash used in operating activities:
Change in fair value of common stock warrant liability	$ (34,150)	$ (86,926)	$ (1,254,218)