Marketable Securities

9 Months Ended

Sep. 30, 2024

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

3. Marketable Securities

The amortized cost and estimated fair value of marketable securities, by remaining contractual maturity, are as follows:

	September 30, 2024
(in thousands)	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses		Fair Value
Maturing after one year through five years
U.S. Treasuries		9,943		68		—		10,011
Total	$	9,943	$	68	$	—	$	10,011

	December 31, 2023
(in thousands)	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Fair Value
Maturing in one year or less
U.S. Treasury Bill	$	8,806	$	6	$	—		$	8,812
U.S. Treasuries		97,086		12		(95	)		97,003
Total	$	105,892	$	18	$	(95	)	$	105,815

The Company did not have any individual securities in an unrealized loss position as of September 30, 2024. The following table summarizes the fair value and gross unrealized losses aggregated by category and the length of time that individual securities were in an unrealized loss position as of December 31, 2023:

	December 31, 2023
	Less than twelve months				Greater than twelve months					Total
(in thousands)	Fair value		Unrealized loss		Fair value		Unrealized loss			Fair value		Unrealized loss
U.S. Treasuries	$	—	$	—	$	53,447	$	(95	)	$	53,447	$	(95	)
Total	$	—	$	—	$	53,447	$	(95	)	$	53,447	$	(95	)

The Company did not record any impairments to marketable securities or reserves for credit losses related to its marketable debt securities during the periods presented.