Available For Sale Securities (Tables)

9 Months Ended

Sep. 30, 2021

Investments, Debt and Equity Securities [Abstract]

Cash, Cash Equivalents, and Available for Sale Securities

Cash, cash equivalents, and available for sale securities at September 30, 2021 and December 31, 2020 consisted of the following:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(in thousands)
September 30, 2021
Cash and cash equivalents	$	207,204	$	—	$	—	$	207,204
Available for sale securities:
U.S. government debt securities	$	—	$	—	$	—	$	—
Total available for sale securities	$	—	$	—	$	—	$	—
Total cash, cash equivalents, and available for sale securities	$	207,204	$	—	$	—	$	207,204

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(in thousands)
December 31, 2020
Cash and cash equivalents	$	228,698	$	—	$	—	$	228,698
Available for sale securities:
U.S. government debt securities	$	39,979	$	13	$	—	$	39,992
Total available for sale securities	$	39,979	$	13	$	—	$	39,992
Total cash, cash equivalents, and available for sale securities	$	268,677	$	13	$	—	$	268,690