Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Company's Available-for-Sale Securities by Level within Fair Value Hierarchy

The Company’s investments by level within the fair value hierarchy were as follows (in thousands):

	Fair value measurement using:
Type of securities as of June 30, 2021	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market fund	$	150,604	$	—	$	—	$	150,604
Short-term investments:
Corporate debt securities	—		182,695		—		182,695
Government-related debt securities	—		28,086		—		28,086
Asset-backed securities	—		26,857		—		26,857
Total	$	150,604	$	237,638	$	—	$	388,242
	Fair value measurement using:
Type of securities as of December 31, 2020	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market fund	$	400,757	$	—	$	—	$	400,757
Short-term investments:
Corporate debt securities	—		22,409		—		22,409
Government-related debt securities	—		5,003		—		5,003
Asset-backed securities	—		1,471		—		1,471
Total	$	400,757	$	28,883	$	—	$	429,640