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Short-term investments
 6 Months Ended
Jun. 30, 2022
Investments, Debt and Equity Securities [Abstract]  
Short-term investments
Note 6 Short-term investments
Below is a summary of short-term investments, which are measured at fair value as of June 30, 2022 (in thousands):
 
    
Amortized
Cost
     
Gross
Unrealized
Gains
     
Gross
Unrealized
Losses
     
Fair Value
  
                                 
                                 
Corporate bonds
  
$
173,376
 
  
$
—  
 
  
$
(2,326
)

  
$
171,050

  
Asset-backed securities
      20,449        —          (86 )       20,363  
Government securities
      2,951        —          (17 )       2,934  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total
  
$
196,776
 
  
$
 
—  
 
  
$
(2,429
)
 		  
$
194,347

  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
At December 31
, 2021
, the Company had no short-term investments.
At
June 30, 2022, the Company’s short-term investments consisted of investments in corporate bonds and notes, asset backed securities, and government securities with varying maturity dates between 2022 through 2027. Proceeds from sales and purchases of short-term investments during the six months ended June 30, 2022, were
$0 and $196.8 million, respectively. The unrealized loss recorded in connection with the investment in short-term investments
 
for the three and six months ended June 30, 2022, was approximately
 $2.4 million and recorded as a separate component of income in the condensed consolidated statement of comprehensive income.