Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2020

Fair Value Disclosures [Abstract]

Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables present information about the Company’s financial assets and liabilities measured at fair value on a recurring basis:

	December 31, 2020
(in thousands)	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market fund	$	55,505	$	—	$	—	$	55,505
U.S. government treasury securities		39,998		—		—		39,998
Totals	$	95,503	$	—	$	—	$	95,503
Short-term investments:
U.S. government treasury securities	$	233,663	$	—	$	—	$	233,663
Totals	$	233,663	$	—	$	—	$	233,663

	December 31, 2019
(in thousands)	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market fund	$	46,407	$	—	$	—	$	46,407
Demand deposit		10,027		—		—		10,027
Totals	$	56,434	$	—	$	—	$	56,434
Short-term investments:
U.S. government treasury securities	$	64,993	$	—	$	—	$	64,993
Totals	$	64,993	$	—	$	—	$	64,993