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Investments (Tables)

9 Months Ended

Sep. 30, 2024

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Investments

Available-for-sale investments consisted of the following as of September 30, 2024 and December 31, 2023 (in thousands):


		September 30, 2024
		Amortized Cost				Unrealized Gain				Unrealized Loss				Estimated Fair Value
Short-term marketable securities
Commercial paper		$	2,443			$	7			$	—			$	2,450
U.S. government treasury and agency securities			187,289				438				(1	)			187,726
Corporate bonds			15,025				44				—				15,069
Total short-term marketable securities		$	204,757			$	489			$	(1	)		$	205,245
Long-term marketable securities
U.S. government treasury securities		$	23,857			$	17			$	(8	)		$	23,866
Total long-term marketable securities		$	23,857			$	17			$	(8	)		$	23,866


		December 31, 2023
		Amortized Cost				Unrealized Gain				Unrealized Loss				Estimated Fair Value
Short-term marketable securities
Commercial paper		$	10,630			$	—			$	—			$	10,630
U.S. government treasury and agency securities			264,214				232				(20	)			264,426
Corporate bonds			6,278				3				—				6,281
Total short-term marketable securities		$	281,122			$	235			$	(20	)		$	281,337

Schedule of Gross Unrealized Holding Losses and Fair Value for Investments in Unrealized Loss Position

The following table presents the gross unrealized holding losses and fair values for investments in an unrealized loss position, and the length of time individual securities have been in a continuous loss position, as of September 30, 2024 (in thousands):


		Less Than 12 Months								12 Months Or Greater
		Fair Value				Unrealized Loss				Fair Value				Unrealized Loss
U.S. government treasury and agency securities		$	15,806			$	(9	)		$	—			$	—
Total available-for-sale securities		$	15,806			$	(9	)		$	—			$	—