Short-term Investments (Tables)

9 Months Ended

Sep. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Debt Securities, Available-for-sale

Short-term investments consisted of available-for-sale and equity securities as follows (in thousands):

Type of securities as of September 30, 2023	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
Corporate debt securities	$	3,296	$	3	$	—	$	3,299
Total available-for-sale debt securities	$	3,296	$	3	$	—	$	3,299

Type of securities as of December 31, 2022	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
Corporate debt securities	$	62,862	$	—	$	(359)	$	62,503
Government-related debt securities	22,009		—		(230)		21,779
Total available-for-sale debt securities	$	84,871	$	—	$	(589)	$	84,282

Fair Values of Available-for-Sale Securities by Contractual Maturity

The fair values of available-for-sale debt securities by contractual maturity were as follows (in thousands):

	September 30, 2023		December 31, 2022
Maturing in one year or less	$	3,299	$	81,004
Maturing in one to three years	—		3,278
Total available-for-sale debt securities	$	3,299	$	84,282