Marketable Debt Securities (Tables)

6 Months Ended

Jun. 30, 2024

Investments, Debt and Equity Securities [Abstract]

Summary of Marketable Securities Classified as Available-for-sale

Marketable debt securities, all of which were classified as available-for-sale, consist of the following (in thousands):

	June 30, 2024
	Amortized Cost		Unrealized Gains		Unrealized Losses			Aggregate Fair Value
Marketable debt securities
U.S. Treasury securities	$	130,756	$	-	$	(106	)	$	130,650
	December 31, 2023
	Amortized Cost		Unrealized Gains		Unrealized Losses			Aggregate Fair Value
Marketable debt securities
U.S. Treasury securities	$	109,571	$	71	$	(8	)	$	109,634

Interest and Investment Income

Interest and investment income consists of the following (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Interest income	$	387	$	396	$	649	$	1,462
Accretion of discount, net		1,636		1,260		2,924		1,867
Total interest and investment income	$	2,023	$	1,656	$	3,573	$	3,329