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BALANCE SHEET COMPONENTS - Changes in Reserve for Product Warranties (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]        
Balance at beginning of period $ 2,862 $ 1,609 $ 1,651 $ 594
Additions charged to cost of product revenue 2,825 779 5,675 2,644
Repairs and replacements (1,722) (622) (3,361) (1,472)
Balance at end of period $ 3,965 $ 1,766 $ 3,965 $ 1,766