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Marketable Securities (Tables)
 12 Months Ended
Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract]  
Components of Marketable Securities by Security Type

Marketable securities by security type as of December 31, 2021 consisted of the following (in thousands):

 

 

December 31, 2021

 

 

 

Amortized
Cost

 

 

Gross
Unrealized
Gains

 

 

Gross
Unrealized
Losses

 

 

Credit Losses

 

 

Fair Value

 

U.S. Treasury securities (due within one year)

 

$

63,907

 

 

$

—

 

 

$

(33

)

 

$

—

 

 

$

63,874

 

U.S. government agency bonds (due within
   one year)

 

 

3,001

 

 

 

—

 

 

 

(3

)

 

 

—

 

 

 

2,998

 

 

 

$

66,908

 

 

$

—

 

 

$

(36

)

 

$

—

 

 

$

66,872