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Certain Balance Sheet Items (Tables)
9 Months Ended
Sep. 30, 2025
Balance Sheet Related Disclosures [Abstract]  
Schedule of Accounts Receivable, Net and Contract Assets
Accounts receivable, net and contract assets consisted of the following (in thousands):
September 30,
2025
December 31,
2024
Product sales to partners
$39,602 $37,599 
Revenues under collaborative agreements
21,238 29,452 
Royalty payments
233,030 164,348 
Other product sales
57,469 65,542 
Contract assets2,500 20,251 
Total accounts receivable and contract assets
353,839 317,192 
Allowance for distribution fees and discounts(7,804)(8,737)
Total accounts receivable, net and contract assets
$346,035 $308,455 
Schedule of Inventories
Inventories consisted of the following (in thousands):
September 30,
2025
December 31,
2024
Raw materials$18,961 $24,015 
Work-in-process34,840 30,169 
Finished goods161,590 142,944 
Total inventories
215,391 197,128 
Less long-term portion (1)
(29,595)(55,268)
Total inventories, current
$185,796 $141,860 
(1) Long-term portion of inventories represents inventory expected to remain on hand beyond one year and therefore is included in prepaid expenses and other assets in the condensed consolidated balance sheets.
Schedule of Prepaid Expenses and Other Assets
Prepaid expenses and other assets consisted of the following (in thousands):
September 30,
2025
December 31,
2024
Prepaid manufacturing expenses$56,027 $36,317 
Other prepaid expenses47,084 10,562 
Long-term inventories
29,595 55,268 
Other assets
17,947 17,400 
Total prepaid expenses and other assets
150,653 119,547 
Less long-term portion
(55,698)(80,596)
Total prepaid expenses and other assets, current
$94,955 $38,951 
Schedule of Property and Equipment
Property and equipment, net consisted of the following (in thousands):
September 30,
2025
December 31,
2024
Research equipment$10,540 $9,811 
Manufacturing equipment43,366 39,760 
Computer and office equipment8,054 7,955 
Internal-use software
2,246 1,755 
Leasehold improvements7,428 7,012 
Subtotal
71,634 66,293 
Accumulated depreciation and amortization(31,059)(25,429)
Subtotal
40,575 40,864 
Right of use of assets30,845 34,171 
Total property and equipment, net
$71,420 $75,035 
Schedule of Accrued Expenses
Accrued expenses consisted of the following (in thousands):
September 30,
2025
December 31,
2024
Accrued compensation and payroll taxes$15,831 $24,400 
Accrued outsourced manufacturing expenses8,429 16,682 
Taxes payable
26,021 30,995 
Product returns and sales allowance48,442 54,588 
Other accrued expenses56,158 26,239 
Lease liability28,101 30,705 
Total accrued expenses
182,982 183,609 
Less long-term portion(71,799)(54,758)
Total accrued expenses, current
$111,183 $128,851