Investments (Tables)

3 Months Ended

Mar. 31, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule of fair value of securities, not including cash

The following tables summarize the gross unrealized gains and losses of the Company’s marketable securities as of March 31, 2022 and December 31, 2021:

	March 31, 2022
			Gross Unrealized						Estimated Fair Value
(In thousands)	Amortized Cost		Gains		Losses		Credit Losses
Commercial paper	$	15,241	$	—	$	(38)	$	—	$	15,203
Corporate notes	53,063		—		(575)		—		52,488
	$	68,304	$	—	$	(613)	$	—	$	67,691
Classified as:
Short-term investments									$	44,888
Long-term investments									22,803
									$	67,691

	December 31, 2021
			Gross Unrealized						Estimated Fair Value
(In thousands)	Amortized Cost		Gains		Losses		Credit Losses
Commercial paper	$	10,243	$	—	$	(12)	$	—	$	10,231
Corporate notes	50,666		—		(142)		—		50,524
	$	60,909	$	—	$	(154)	$	—	$	60,755
Classified as:
Short-term investments									$	35,068
Long-term investments									25,687
									$	60,755