Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2021

Fair Value Measurements [Abstract]

Fair Value, by Balance Sheet Grouping

	Assets and Liabilities at Fair Value
	As of December 31, 2021
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Cash and cash equivalents	$	64,065	$	—	$	—	$	64,065
Short-term investments	7,561		15,117		—		22,678
Total cash and cash equivalents and investments	$	71,626	$	15,117	$	—	$	86,743

	Assets and Liabilities at Fair Value
	As of December 31, 2020
	Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Cash and cash equivalents	$	126,263	$	—	$	—	$	126,263
Short-term investments	—		26,012		—		26,012
Total cash and cash equivalents and investments	$	126,263	$	26,012	$	—	$	152,275