Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule of Investments in Marketable Securities

The Company's investments in marketable securities are stated at fair value and are available-for-sale. The following table summarizes the Company's investments in marketable securities (in thousands) as of:

		June 30, 2022
	Maturity	Amortized Cost Basis		Gross Unrealized Losses		Fair Value
Short-term marketable securities
U.S. Treasury notes	Within one year	$	162,238	$	(800)	$	161,438
U.S. Government-sponsored enterprise securities	Within one year	137,649		(1,456)		136,193
Total short-term marketable securities		$	299,887	$	(2,256)	$	297,631

		December 31, 2021
	Maturity	Amortized Cost Basis		Gross Unrealized Losses		Fair Value
Short-term marketable securities
U.S. Treasury notes	Within one year	$	226,136	$	(344)	$	225,792
U.S. Government-sponsored enterprise securities	Within one year	49,618		(70)		49,548
Total short-term marketable securities		$	275,754	$	(414)	$	275,340
Long-term marketable securities
U.S. Government-sponsored enterprise securities	Within two years	64,596		(200)		64,396
Total long-term marketable securities		$	64,596	$	(200)	$	64,396