Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Operating activities:
Net loss	$ (222,240)	$ (268,714)
Adjustments to reconcile net loss to net cash used in operating activities:
Change in fair value of related-party convertible note	41,413	0
Non-cash interest expense related to revenue interest liability	23,285	17,211
Stock-based compensation expense	19,185	17,905
Depreciation and amortization	7,709	8,961
Change in fair value of derivative liabilities	(7,509)	(18,470)
Change in fair value of warrant liabilities	(3,441)	21,102
Non-cash interest items, net	(124)	(125)
Transaction costs allocated to warrant liabilities	104	0
Accretion of discounts on marketable debt securities	(63)	(885)
Amortization of related-party notes discounts	0	11,381
Other	453	109
Changes in operating assets and liabilities:
Accounts receivable	(19,766)	(1,033)
Inventories	1,632	(1,811)
Other assets	1,143	181
Accounts payable	223	8,969
Accrued expenses and other liabilities	(4,210)	(5,620)
Due to and due from related parties, net	44	56
Net cash used in operating activities	(165,651)	(207,329)
Investing activities:
Proceeds from maturities of marketable debt securities, available-for-sale	5,350	48,021
Purchases of property, plant and equipment	(2,202)	(1,985)
Purchases of marketable debt securities, available-for-sale	(15,161)	(134,129)
Proceeds from sales of marketable debt securities	0	981
Net cash used in investing activities	(12,013)	(87,112)
Financing activities:
Net share settlement for RSUs vesting	(1,524)	(4,363)
Proceeds from exercises of warrants	0	57,664
Principal payments of finance leases	(4)	(42)
Proceeds from the RIPA, net of issuance costs	0	96,956
Net cash provided by financing activities	171,828	159,119
Effect of exchange rate changes on cash and cash equivalents, and restricted cash	66	(27)
Net change in cash and cash equivalents, and restricted cash	(5,770)	(135,349)
Cash and cash equivalents, and restricted cash, beginning of period	143,912	265,787
Cash and cash equivalents, and restricted cash, end of period	138,142	130,438
Reconciliation of cash and cash equivalents, and restricted cash, end of period:
Cash and cash equivalents	137,658	130,104
Restricted cash	484	334
Cash and cash equivalents, and restricted cash, end of period	138,142	130,438
Supplemental disclosure of cash flow information:
Interest	34,458	47,891
Income taxes	0	13
Supplemental disclosure of non-cash activities:
Initial measurement of warrants issued in connection with equity offerings accounted for as liabilities	61,823	0
Right-of-use assets obtained in exchange for operating lease liabilities	4,526	0
Property and equipment purchases included in accounts payable, accrued expenses and other liabilities, and due to related parties	1,304	2,995
Right-of-use assets obtained in exchange for finance lease liabilities	307	0
Unpaid offering costs included in accounts payable, and accrued expenses and other liabilities	118	0
Unrealized (losses) gains on marketable debt securities, net	(15)	37
Non-related Party
Adjustments to reconcile net loss to net cash used in operating activities:
Non-cash lease expense related to operating lease right-of-use assets	1,830	1,538
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	(3,825)	3,783
Operating lease liabilities	(1,908)	(976)
Related-Party
Adjustments to reconcile net loss to net cash used in operating activities:
Change in fair value of related-party convertible note	41,413	0
Non-cash lease expense related to operating lease right-of-use assets	1,336	1,188
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	746	(635)
Operating lease liabilities	(1,668)	(1,444)
Stock Options, Other
Financing activities:
Proceeds from exercises of stock options	220	429
Private Placement and At the Market Offerings
Financing activities:
Proceeds from equity offerings, net of discounts and issuance costs	173,136	3,625
Stock Purchase And Option Agreement
Financing activities:
Proceeds from exercises of stock options	$ 0	$ 4,850