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Marketable Securities
9 Months Ended
Sep. 30, 2020
Investments Debt And Equity Securities [Abstract]  
Marketable Securities

 


7. Marketable Securities

The amortized cost, gross unrealized holding losses and fair value of available-for-sale debt securities by type of security as of September 30, 2020 were as follows:

 

 

 

As of September 30, 2020

 

 

 

Amortized Cost

 

 

Gross Unrealized Holding Gains

 

 

Gross Unrealized Holding Losses

 

 

Fair Value

 

U.S. Government-related obligations

 

$

312,476

 

 

$

122

 

 

$

 

 

$

312,598

 

 

All available-for-sale securities mature in one year or less. The Company did not hold available-for-sale securities as of December 31, 2019.