Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2020

Investments, Debt and Equity Securities [Abstract]

Schedule of investments classified as available-for-sale

Marketable securities classified as available-for-sale as of December 31, 2020 and 2019 were comprised of (in thousands):

	December 31, 2020								December 31, 2019
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Treasury securities	$	10,038	$	—	$	(2)	$	10,036	$	—			$	—	$	—
Corporate debt securities	127,003		13		(3)		127,013		—		—		—		—
Agency securities	20,599		1		—		20,600		—		—		—		—
Total	$	157,640	$	14	$	(5)	$	157,649	$	—	$	—	$	—	$	—