Available for Sale Securities

3 Months Ended

Mar. 31, 2021

Investments, Debt and Equity Securities [Abstract]

Available For Sale Securities

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


	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(in thousands)
March 31, 2021
Cash and cash equivalents	$	252,765	$	—	$	—	$	252,765
Available for sale securities:
U.S. government debt securities	$	19,996	$	3	$	—	$	19,999
Total available for sale securities	$	19,996	$	3	$	—	$	19,999
Total cash, cash equivalents, and available for sale securities	$	272,761	$	3	$	—	$	272,764


	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

The estimated fair value of the Company’s available for sale securities balance at March 31, 2021, by contractual maturity, was as follows (in thousands):


Due in one year or less	$	19,999
Due after one year	—
Total available for sale securities	$	19,999

There were no realized gains or losses on available for sale securities for the three months ended March 31, 2021 and 2020 and the Company did not recognize any credit losses during the three months ended March 31, 2021 and 2020. Additionally, the Company did not have any available for sale securities that were in an unrealized loss position as of March 31, 2021 and December 31, 2020.