Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table summarizes the financial instruments measured at fair value on a recurring basis classified in the fair value hierarchy (Level 1, 2 or 3) based on the inputs used for valuation in the accompanying unaudited condensed consolidated balance sheets:

	As of June 30, 2021						As of December 31, 2020
Fair Value Measurements:	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Marketable securities (see Note 6)
Mutual and money market funds	$	91,732	$	—	$	—	$	104,672	$	—	$	—
Corporate bonds	—		23,056		—		—		22,155		—
Government securities - U.S.	—		17,853		—		—		18,999		—
Other fixed-income securities	—		3,060		—		—		3,854		—
Total assets	$	91,732	$	43,969	$	—	$	104,672	$	45,008	$	—