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Balance Sheet Details - Short-Term Investments (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Short-term investments
Amortized cost	$ 193,569	$ 237,724
Unrealized gains	12	3
Unrealized losses	(1,653)	(4,557)
Estimated fair value	191,928	233,170
U.S. government agency bonds
Short-term investments
Amortized cost	47,989	88,478
Unrealized losses	(658)	(2,413)
Estimated fair value	$ 47,331	$ 86,065
U.S. government agency bonds | Maximum
Short-term investments
Maturity	3 years	3 years
U.S. treasury securities
Short-term investments
Amortized cost	$ 95,929	$ 52,991
Unrealized losses	(320)	(384)
Estimated fair value	$ 95,609	$ 52,607
U.S. treasury securities | Maximum
Short-term investments
Maturity	2 years	1 year
Bank certificates of deposit
Short-term investments
Amortized cost	$ 11,300	$ 17,500
Unrealized gains	1	3
Unrealized losses	(1)	(11)
Estimated fair value	$ 11,300	$ 17,492
Bank certificates of deposit | Maximum
Short-term investments
Maturity	2 years	1 year
Corporate notes
Short-term investments
Amortized cost	$ 22,104	$ 41,464
Unrealized gains	11
Unrealized losses	(403)	(978)
Estimated fair value	$ 21,712	$ 40,486
Corporate notes | Maximum
Short-term investments
Maturity	3 years	3 years
Asset-backed securities
Short-term investments
Amortized cost	$ 8,613	$ 21,656
Unrealized losses	(226)	(360)
Estimated fair value	$ 8,387	$ 21,296
Asset-backed securities | Maximum
Short-term investments
Maturity	2 years	2 years
Municipal bonds
Short-term investments
Amortized cost	$ 7,634	$ 15,635
Unrealized losses	(45)	(411)
Estimated fair value	$ 7,589	$ 15,224
Municipal bonds | Maximum
Short-term investments
Maturity	3 years	3 years

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