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Marketable Securities (Tables)
6 Months Ended
Jun. 30, 2019
Investments Debt And Equity Securities [Abstract]  
Summary of Marketable Securities Held

The following table summarizes the marketable securities held at June 30, 2019 (in thousands):

 

 

 

Amortized

Cost

 

 

Unrealized

Gains

 

 

Unrealized

Losses

 

 

Fair

Value

 

Commercial paper

 

$

13,082

 

 

$

 

 

$

 

 

$

13,082

 

Corporate notes

 

 

10,040

 

 

 

12

 

 

 

 

 

 

10,052

 

Total

 

$

23,122

 

 

$

12

 

 

$

 

 

$

23,134