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BALANCE SHEET COMPONENTS (Tables)
 6 Months Ended
Jun. 30, 2024
Balance Sheet Components [Abstract]  
Components of Inventory
Our inventory, net, consisted of the following components:
(in thousands)June 30,
2024		December 31,
2023
Purchased materials$29,918 $20,168 
Work in process21,695 23,436 
Finished goods16,981 13,072 
Inventory, net$68,594 $56,676 
Schedule of Goodwill
Changes to goodwill during six months ended June 30, 2024 were as follows:
(in thousands)
Balance as of December 31, 2023
$462,261 
Impairment
(93,200)
Balance as of June 30, 2024
$369,061 
Schedule of Definite-Lived Intangible Assets From Business Acquisitions
In addition to IPR&D, finite-lived intangible assets included the following:
As of June 30, 2024As of December 31, 2023
(in thousands, except years)
Estimated
Useful Life
(in years)		Gross
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount		Gross
Carrying
Amount		Accumulated
Amortization		Net
Carrying
Amount
Developed technology15$411,179 $(22,901)$388,278 $411,179 $(9,195)$401,984 
Customer relationships2360 (360)— 360 (360)— 
Total$411,539 $(23,261)$388,278 $411,539 $(9,555)$401,984 
Estimated Future Amortization Expense of Acquisition-Related Intangible Assets with Definite Lives
The estimated future amortization expense of intangible assets with definite lives is as follows:
(in thousands)
Remainder of 2024$13,706 
202527,412 
202627,412 
202727,412 
202827,412 
2029 and thereafter264,924 
Total$388,278 
Changes in Reserve for Product Warranties
Changes in the reserve for product warranties were as follows for the periods indicated:
Three Months Ended June 30,Six Months Ended June 30,
(in thousands)2024202320242023
Balance at beginning of period$4,120 $1,624 $4,681 $1,651 
Additions charged to cost of product revenue1,773 2,247 3,373 2,851 
Repairs and replacements(2,431)(1,009)(4,592)(1,640)
Balance at end of period$3,462 $2,862 $3,462 $2,862