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 tables summarize assets that are measured at fair value on a recurring basis:

	December 31, 2021
(in thousands)	Level 1		Level 2		Level 3		Total
Cash equivalents
Money market funds	$	178,518	$	—	$	—	$	178,518
Total cash equivalents	$	178,518	$	—	$	—	$	178,518
Short-term investments
Commercial paper	$	—	$	134,118	$	—	$	134,118
Corporate bonds	—		27,128		—		27,128
Asset backed securities	—		27,411		—		27,411
Certificates of deposit	—		9,992		—		9,992
Supranational bonds	—		8,599		—		8,599
U.S. Treasury and agency obligations	—		27,044		—		27,044
Total short-term investments	$	—	$	234,292	$	—	$	234,292

	December 31, 2020
(in thousands)	Level 1		Level 2		Level 3		Total
Cash equivalents
Money market funds	$	44,153	$	—	$	—	$	44,153
Commercial paper	—		4,500		—		4,500
Total cash equivalents	$	44,153	$	4,500	$	—	$	48,653
Short-term investments
Commercial paper	$	—	$	71,425	$	—	$	71,425
Corporate bonds	—		4,505		—		4,505
U.S. Treasury and agency obligations	—		37,693		—		37,693
Total short-term investments	$	—	$	113,623	$	—	$	113,623