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Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2024

Marketable Securities [Abstract]

Summary of Available-for-Sale Securities and Gross Unrealized Losses

The following tables summarize the Company's marketable securities accounted for as available-for-sale securities (in thousands, except years):


	March 31, 2024
	Maturity (in years)	Amortized cost				Unrealized gains				Unrealized losses				Estimated fair value
U.S. Treasury securities	1 or less	$	63,024			$	33			$	—			$	63,057
U.S. government agency securities	1 or less		36,588				16				(23	)			36,581
U.S. Treasury securities	1-2		21,998				17				(53	)			21,962
U.S. government agency securities	1-2		6,492				4				—				6,496
Total		$	128,102			$	70			$	(76	)		$	128,096


	December 31, 2023
	Maturity (in years)	Amortized cost				Unrealized gains				Unrealized losses				Estimated fair value
U.S. Treasury securities	1 or less	$	76,481			$	153			$	—			$	76,634
U.S. government agency securities	1 or less		37,376				38				(3	)			37,411
U.S. Treasury securities	1-2		18,846				118				—				18,964
U.S. government agency securities	1-2		12,379				75				—				12,454
Total		$	145,082			$	384			$	(3	)		$	145,463


	March 31, 2024
	Unrealized losses less than 12 months								Unrealized losses 12 months or greater								Total
	Fair value				Unrealized losses				Fair value				Unrealized losses				Fair value				Unrealized losses
U.S. Treasury securities	$	12,204			$	(53	)		$	—			$	—			$	12,204			$	(53	)
U.S. government agency securities	$	16,805			$	(23	)		$	—			$	—			$	16,805			$	(23	)
Total	$	29,009			$	(76	)		$	—			$	—			$	29,009			$	(76	)


	December 31, 2023
	Unrealized losses less than 12 months								Unrealized losses 12 months or greater								Total
	Fair value				Unrealized losses				Fair value				Unrealized losses				Fair value				Unrealized losses
U.S. government agency securities	$	9,939			$	(3	)		$	—			$	—			$	9,939			$	(3	)
Total	$	9,939			$	(3	)		$	—			$	—			$	9,939			$	(3	)