Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2022

Investments Debt And Equity Securities [Abstract]

Summary of Marketable Securities

The Company’s marketable securities, which consist of highly liquid marketable debt securities, are classified as available-for-sale and are stated at fair value. The following tables summarize the Company’s marketable securities (in thousands):

As of June 30, 2022	Maturity (in years)	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
U.S. Treasury securities	1 or less	$	197,630	$	—	$	(1,395	)	$	196,235
U.S. Government agency securities	1 or less		5,000		—		(72	)		4,928
Negotiable certificates of deposit	1 or less		2,647		—		(34	)		2,613
Corporate debt securities	1 or less		12,839		—		(211	)		12,628
U.S. Treasury securities	1 - 2		52,114		—		(1,100	)		51,014
Negotiable certificates of deposit	1 - 2		1,224		—		(39	)		1,185
Corporate debt securities	1 - 2		4,644		—		(135	)		4,509
Total		$	276,098	$	—	$	(2,986	)	$	273,112

As of December 31, 2021	Maturity (in years)	Amortized Cost		Unrealized Gains		Unrealized Losses			Estimated Fair Value
U.S. Treasury securities	1 or less	$	2,492	$	—	$	(1	)	$	2,491
Negotiable certificates of deposit	1 or less		1,190		—		(1	)		1,189
U.S. Treasury securities	1 - 2		63,034		—		(153	)		62,881
Negotiable certificates of deposit	1 - 2		2,687		—		(3	)		2,684
Corporate debt securities	1 - 2		15,879		—		(29	)		15,850
Total		$	85,282	$	—	$	(187	)	$	85,095