Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Summary of Amortized Cost and Estimated Fair Value of Marketable Securities by Contractual Maturity

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

	June 30, 2022
(in thousands)	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses			Fair Value
Maturing in one year or less
Corporate bonds	$	9,436	$	—	$	(110	)	$	9,326
U.S. Treasuries		80,026		—		(1,216	)		78,810
Total	$	89,462	$	—	$	(1,326	)	$	88,136

	December 31, 2021
(in thousands)	Amortized Cost		Gross Unrealized Holding Gains		Gross Unrealized Holding Losses		Fair Value
Maturing in one year or less
Corporate bonds	$	7,603	$	—	$	—	$	7,603
U.S. Treasuries		30,119		—		—		30,119
Maturing after one year through five years
Corporate bonds		5,006		—		—		5,006
U.S. Treasuries		44,940		—		—		44,940
Total	$	87,668	$	—	$	—	$	87,668