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BALANCE SHEET COMPONENTS (Tables)
 12 Months Ended
Dec. 31, 2024
Balance Sheet Components [Abstract]  
Schedule of Inventory
Inventory, net, consisted of the following components:
December 31,
(in thousands)20242023
Purchased materials$45,270 $32,434 
Work in process22,172 27,653 
Finished goods14,081 15,746 
Inventory, gross81,523 75,833 
Inventory reserve(22,768)(19,157)
Inventory, net$58,755 $56,676 
Schedule of Property and Equipment, Net
Estimated useful lives of the major classes of property and equipment are as follows:
Estimated Useful Lives
Leasehold improvements
3 to 10 years
Lab equipment
3 to 5 years
Computer equipment
3 to 5 years
Computer software3 years
Furniture and fixtures
3 to 5 years
Property and equipment, net, consisted of the following components:
December 31,
(in thousands)20242023
Laboratory equipment and machinery $47,273 $44,907 
Leasehold improvements33,770 35,226 
Computer equipment18,882 19,528 
Software7,280 6,628 
Furniture and fixtures2,972 3,594 
Construction in progress2,276 1,343 
Total112,453 111,226 
Less: Accumulated depreciation (81,948)(74,794)
Property and equipment, net $30,505 $36,432 
Schedule of Goodwill
Changes to goodwill during the year ended December 31, 2024 were as follows:
(in thousands)
Balance as of December 31, 2023
$462,261 
Impairment charges
(144,500)
Balance as of December 31, 2024
$317,761 
Schedule of Impaired Intangible Assets
Changes to IPR&D during the year ended December 31, 2024 were as follows:
(in thousands)
Balance as of December 31, 2023
$55,000 
Impairment charge
(40,000)
Balance as of December 31, 2024
$15,000 
Schedule of Finite-Lived Intangible Assets From Business Acquisitions
In addition to IPR&D, we had the following acquired finite-lived intangible assets as of December 31, 2024:
(in thousands, except years)Estimated
Useful Life
(in years)		Gross
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount
Developed technology15$411,179 $(36,607)$374,572 
Customer relationships2360 (360)— 
Total$411,539 $(36,967)$374,572 
Schedule of Estimated Future Amortization Expense of Acquisition-Related Intangible Assets with Finite Lives
The estimated future amortization expense of acquisition-related intangible assets with finite lives is estimated as follows:
(in thousands)
2025$27,412 
202627,412 
202727,412 
202827,412 
202927,412 
2030 and thereafter237,512 
Total$374,572 
Schedule of Accrued Expenses
Accrued expenses consisted of the following components:
December 31,
(in thousands)20242023
Salaries and benefits$11,706 $29,337 
Accrued interest payable2,470 2,834 
Accrued purchase commitments— 2,613 
Accrued product development costs1,111 1,033 
Accrued professional services and legal fees824 2,641 
Inventory accrual1,237 353 
Warranty accrual3,100 4,681 
Other 2,147 2,216 
Accrued expenses $22,595 $45,708 
Schedule of Changes in Reserve for Product Warranties
Changes in the reserve for product warranties were as follows:
Years Ended December 31,
(in thousands)20242023
Balance at beginning of period$4,681 $1,651 
Additions charged to cost of product revenue6,144 8,227 
Repairs and replacements(7,725)(5,197)
Balance at end of period$3,100 $4,681 
Schedule of Other Liabilities, Current
Other liabilities, current, consisted of the following components:
December 31,
(in thousands)20242023
Accrued Employee Stock Purchase Plan$2,014 $3,715 
Short-term loan— 490 
Other 1,210 4,121 
Other liabilities, current$3,224 $8,326