Investment Securities (Tables)

6 Months Ended

Jun. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Summary of Available-For-Sale Investment Securities Held by the Company

The following is a summary of the available-for-sale investment securities held by the Company as of June 30, 2022 and December 31, 2021 (in thousands):

	As of June 30, 2022
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
Available-for-sale investment securities:
U.S. government and agency obligations	$	185,330	$	9	$	(1,538	)	$	183,801
Certificates of deposit		6,219		—		(75	)		6,144
Corporate debt securities		151,887		2		(2,013	)		149,876
Commercial paper		3,992		—		—			3,992
Asset-backed securities		2,404		—		(4	)		2,400
Total	$	349,832	$	11	$	(3,630	)	$	346,213

	As of December 31, 2021
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Market Value
Available-for-sale investment securities:
U.S. government and agency obligations	$	54,637	$	—	$	(180	)	$	54,457
Certificates of deposit		5,735		1		(4	)		5,732
Corporate debt securities		70,600		6		(204	)		70,402
Asset-backed securities		2,421		—		—			2,421
Total	$	133,393	$	7	$	(388	)	$	133,012

Summary of Available-For-Sale Investment Securities By Contractual Maturity

As of June 30, 2022 and December 31, 2021, available-for-sale investment securities by contractual maturity were as follows (in thousands):

	As of June 30, 2022				As of December 31, 2021
	Amortized Cost		Fair Market Value		Amortized Cost		Fair Market Value
Available-for-sale investment securities:
Due in one year or less	$	235,421	$	233,722	$	31,101	$	31,078
Due after one year through five years		114,411		112,491		102,292		101,934
Total	$	349,832	$	346,213	$	133,393	$	133,012