Investments (Tables)

12 Months Ended

Dec. 31, 2021

Investments, All Other Investments [Abstract]

Summary of Fair value of Company's Financial Assets

The fair value of the Company's financial assets as of December 31, 2021, have been categorized based upon the fair value hierarchy as follows:

	Total		Level 1		Level 2		Level 3
Financial assets:
Included in cash and cash equivalents
U.S. treasury instruments	$	301,992	$	—	$	301,992	$	—
Money market securities		83,004		—		83,004		—
Investments
U.S. treasury instruments		200,973		—		200,973		—
Common stock		15,964		15,964		—		—
Warrants		684		684		—		—
Total financial assets	$	602,617	$	16,648	$	585,969	$	—

The fair value of the Company's financial assets as of December 31, 2020 have been categorized based upon the fair value hierarchy as follows:

	Total		Level 1		Level 2		Level 3
Financial assets:
Included in cash and cash equivalents
U.S. treasury instruments	$	15,599	$	—	$	15,599	$	—
Money market securities		103,406		—		103,406		—
Investments
U.S. treasury instruments		172,671		—		172,671		—
Total financial assets	$	291,676	$	—	$	291,676	$	—