Financial instruments fair value (Tables)

9 Months Ended

Sep. 30, 2021

Fair Value Disclosures [Abstract]

Financial Instruments Fair Value

The fair value of these financial instruments were as follows:

	September 30, 2021
	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash equivalents:
Money market funds	$	153,026	$	—	$	—	$	153,026
Total cash equivalents	$	153,026	$	—	$	—	$	153,026

	December 31, 2020
	Level 1		Level 2		Level 3		Total
	(in thousands)
Cash equivalents:
Money market funds	$	100,000	$	—	$	—	$	100,000
U.S. Treasuries	25,000		—		—		25,000
Total cash equivalents	$	125,000	$	—	$	—	$	125,000