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Investments (Tables)
 9 Months Ended
Sep. 30, 2019
Investments  
Schedule of available-for-sale securities

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

September 30, 2019

 

 

 

 

 

Gross

 

Gross

 

 

 

 

 

Amortized

 

Unrealized

 

Unrealized

 

Estimated

 

    

Cost

    

Gain

    

Loss

    

Fair Value

U.S. treasury securities

 

$

19,982

 

$

 1

 

$

 —

 

$

19,983

Agency bonds

 

 

47,178

 

 

 —

 

 

(17)

 

 

47,161

Corporate bonds

 

 

107,045

 

 

20

 

 

(62)

 

 

107,003

Total

 

$

174,205

 

$

21

 

$

(79)

 

$

174,147