Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Schedule of Assets Measured at Fair Value on Recurring Basis

The following table presents information about the Company’s financial assets measured at fair value on a recurring basis and indicates the level of the fair value hierarchy utilized to determine such fair values as of December 31, 2021 and December 31, 2020 (in thousands):

	Fair Value Measurements at December 31, 2021:
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents
Money market fund	$	43,182	$	—	$	—	$	43,182
Marketable securities, current
US treasuries		169,481		—		—		169,481
US government agencies		32,170		—				32,170
Corporate bonds		—		192,791		—		192,791
Marketable securities, non-current
US treasuries		17,172		—		—		17,172
US government agencies		47,363		—				47,363
Corporate bonds		—		60,652		—		60,652
Restricted cash		6,116		—		—		6,116
Total	$	315,484	$	253,443	$	—	$	568,927

	Fair Value Measurements at December 31, 2020:
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents
Money market fund	$	19,943	$	—	$	—	$	19,943
Corporate bonds		—		10,499		—		10,499
Marketable securities, current
US treasuries		192,275		—		—		192,275
Corporate bonds		—		72,923		—		72,923
Marketable securities, non-current
US treasuries		132,589		—		—		132,589
Corporate bonds		—		29,942		—		29,942
Restricted cash		1,589		—		—		1,589
Total	$	346,396	$	113,364	$	—	$	459,760