XML 76 R33.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Marketable Securities (Tables)
 12 Months Ended
Dec. 31, 2019
Investments, Debt and Equity Securities [Abstract]  
Marketable Securities The following table summarizes the Company's investments in marketable securities for the year ended December 31, 2018:
 
December 31, 2018
 
Maturity
 
Gross Amortized Cost
 
Total Unrealized Gains
 
Total Unrealized Losses
 
Fair Value
Commercial paper
Within one year
 
$
22,886

 
$
—

 
$
(14
)
 
$
22,872

Corporate bonds
Within one year
 
28,074

 
—

 
(14
)
 
28,060

Total
 
 
$
50,960

 
$
—

 
$
(28
)
 
$
50,932