Cash Equivalents and Short-Term Investments (Tables)

12 Months Ended

Dec. 31, 2022

Cash and Cash Equivalents [Abstract]

Summary of debt securities

The following tables summarize the amortized cost, unrealized gain and loss and estimated fair value of cash equivalents and short-term investments:

	December 31, 2022
(in thousands)	Amortized Cost		Unrealized Gain		Unrealized Loss		Estimated Fair Value
Cash equivalents
Money market funds	$	201,476	$	—	$	—	$	201,476
Total cash equivalents	$	201,476	$	—	$	—	$	201,476
Short-term investments
Commercial paper	$	144,093	$	2	$	(377)	$	143,718
Corporate bonds	37,778		—		(194)		37,584
Asset backed securities	19,723		11		(161)		19,573
Certificates of deposit	10,000		—		—		10,000
Supranational bonds	4,017		—		(67)		3,950
U.S. Treasury and agency obligations	52,309		—		(565)		51,744
Total short-term investments	$	267,920	$	13	$	(1,364)	$	266,569

	December 31, 2021
(in thousands)	Amortized Cost		Unrealized Gain		Unrealized Loss		Estimated Fair Value
Cash equivalents
Money market funds	$	178,518	$	—	$	—	$	178,518
Total cash equivalents	$	178,518	$	—	$	—	$	178,518
Short-term investments
Commercial paper	$	134,165	$	—	$	(47)	$	134,118
Corporate bonds	27,169		—		(41)		27,128
Asset backed securities	27,464		—		(53)		27,411
Certificates of deposit	10,000		—		(8)		9,992
Supranational bonds	8,632		—		(33)		8,599
U.S. Treasury and agency obligations	27,168		—		(124)		27,044
Total short-term investments	$	234,598	$	—	$	(306)	$	234,292

Schedule of contractual maturities of short-term investments

The contractual maturities of our short-term investments are as follows:

	December 31, 2022				December 31, 2021
(in thousands)	Amortized Cost		Estimated Fair Value		Amortized Cost		Estimated Fair Value
Due within one year	$	243,430	$	242,129	$	195,579	$	195,453
Due between one and four years	24,490		24,440		39,019		38,839
Total short-term investments	$	267,920	$	266,569	$	234,598	$	234,292