BALANCE SHEET COMPONENTS - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Intangible assets, amortization period	5 years
Intangible assets, gross carrying amount, total	$ 48,674		$ 48,704
Intangible assets, accumulated amortization, total	(33,927)		(33,084)
Intangible assets, net carrying amount, total	14,747		15,620
Total amortization of acquired intangible assets	843	$ 878
Customer Relationships
Intangible assets, gross carrying amount, total	9,505		9,508
Intangible assets, accumulated amortization, total	(7,500)		(7,335)
Intangible assets, net carrying amount, total	$ 2,005		2,173
Customer Relationships | Minimum
Amortization Period (Year)	1 year
Customer Relationships | Maximum
Amortization Period (Year)	10 years
Developed Technology
Intangible assets, gross carrying amount, total	$ 34,623		34,650
Intangible assets, accumulated amortization, total	(22,723)		(22,094)
Intangible assets, net carrying amount, total	$ 11,900		12,556
Developed Technology | Minimum
Amortization Period (Year)	4 years
Developed Technology | Maximum
Amortization Period (Year)	9 years
Tradename and Trademarks
Intangible assets, gross carrying amount, total	$ 1,598		1,598
Intangible assets, accumulated amortization, total	(1,052)		(1,025)
Intangible assets, net carrying amount, total	$ 546		573
Tradename and Trademarks | Minimum
Amortization Period (Year)	2 years
Tradename and Trademarks | Maximum
Amortization Period (Year)	10 years
Patent
Intangible assets, gross carrying amount, total	$ 2,100		2,100
Intangible assets, accumulated amortization, total	(1,804)		(1,782)
Intangible assets, net carrying amount, total	$ 296		318
Patent | Minimum
Amortization Period (Year)	6 years
Patent | Maximum
Amortization Period (Year)	10 years
Noncompetition Agreements
Amortization Period (Year)	3 years
Intangible assets, gross carrying amount, total	$ 848		848
Intangible assets, accumulated amortization, total	(848)		$ (848)
Costs of Revenues
Amortization of acquired technology included under Costs of revenues	584	553
Costs and Expenses
Amortization of acquired intangible assets presented separately under costs and expenses	$ 259	$ 325