Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2022

Fair Value Disclosures [Abstract]

Fair Value Measurements of Company's Financial Assets

The Company’s financial assets subject to fair value measurements on a recurring basis and the level of inputs used in such measurements were as follows as of June 30, 2022 and December 31, 2021 (in thousands):

	June 30, 2022
Description	Level 1		Level 2		Level 3		Total
Money market fund	$	41,722	$	—	$	—	$	41,722
U.S. treasury securities		—		96,800		—		96,800
Non-U.S. government securities		—		24,368		—		24,368
Commercial paper		—		77,750		—		77,750
Asset-backed securities		—		19,304		—		19,304
Corporate debt securities		—		83,548		—		83,548
Total available-for-sale securities	$	41,722	$	301,770	$	—	$	343,492

	December 31, 2021
Description	Level 1		Level 2		Level 3		Total
Money market fund	$	41,960	$	—	$	—	$	41,960
U.S. treasury securities		—		40,237		—		40,237
Government-sponsored agencies		—		16,765		—		16,765
Commercial paper		—		111,868		—		111,868
Asset-backed securities		—		39,926		—		39,926
Corporate debt securities		—		103,574		—		103,574
Total available-for-sale securities	$	41,960	$	312,370	$	—	$	354,330

Summary of Carrying Amount And Estimated Fair Value of Financial Instruments

The carrying amount and estimated fair value of financial instruments not recorded at fair value at June 30, 2022 and December 31, 2021 were as follows (in thousands):

	June 30,				December 31,
	2022				2021
	Carrying Amount		Estimated Fair Value		Carrying Amount		Estimated Fair Value
Long-term debt, net (1)	$	23,725	$	25,271	$	23,635	$	25,046

(1)Carrying amounts of long-term debt were net of unamortized debt discounts of $226 and $316 as of June 30, 2022 and December 31, 2021, respectively.